ICEIS 2001 Abstracts

 

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Co-organized by:

École Supérieure d' Électronique de l' Ouest
École Supérieure
d' Électronique de
l' Ouest

and
Escola Superior de Tecnologia
Departamento de Sistemas 
e Informática
da
EST-Setúbal/IPS 
Escola Superior de 
Tecnologia de Setúbal 

 Instituto Politécnico de Setúbal

 

ICEIS 2003 Sites
www.est.ips.pt/iceis/

www.iceis.org

DBLP bibliography

 

Area 1 - DATABASES AND INFORMATION SYSTEMS INTEGRATION
Area 2 - ARTIFICIAL INTELLIGENCE AND DECISION SUPPORT SYSTEMS
Area 3 - INFORMATION SYSTEMS ANALYSIS AND SPECIFICATION
Area 4 - INTERNET COMPUTING AND ELECTRONIC COMMERCE

Area 1 - DATABASES AND INFORMATION SYSTEMS INTEGRATION

Title:

INTEGRATING ENTERPRISE MODELS FOR BANKS

Author(s):

Khaled Naboulsi

Abstract: The demand for change in the banking industry has been continuous. During the past decade alone, the banking industry has encountered events that have forced banking to an enterprise level never before seen. These events include increased competition both among banks and non-banks competitors, an increased awareness in customer preferences, and technological advances in distributed systems. Banking institutions need to adopt new system approaches to compete, or face their own demise. Traditional integration models focus on application logic to solve compatibility issues. We examined the Application Development Model (AD) and the Workflow Management System that uses CORBA-Event Services as two alternative approaches to resolving the banking industry’s problems. However, due to the volatility of banking as an industry, it would appear more appropriate for developers to seek out alternatives that offer more flexibility, especially in light of the problems related to legacy systems. Utilizing a middleware such as CORBA provides an industry such as banking with solutions that address the issues of scalability, performance, and flexibility.

Title:

DOMAIN KNOWLEDGE AS CORPORATE RESOURCE OF FINANCIAL FIRMS

Author(s):

Michael S. H. Heng and Steve C.A. Peters

Abstract: It is almost a cliché to say that we live in a knowledge society and that knowledge is an important resource of firms in their production of goods and provision of services to their clients. However it is not so easy to find many examples showing the use of domain knowledge in financial companies. This paper reports the case of how a vehicle lease company in the Netherlands combines the use of domain knowledge and information technology into an expert system to automate the control of vehicle maintenance activity. The results benefit all parties concerned. The lease company can control the vehicle repair and maintenance works more efficiently. For the customers, it is higher rate of vehicle utilisation, greater safety and lower costs. The dealers who carry out the repairs and maintenance can do their work faster, and are paid immediately and automatically via the banks, resulting in lower administrative costs. The case story suggests that domain knowledge can be perceived as a corporate resource and its utilisation can produce values for the stakeholders. We propose that financial firms (1) see themselves as knowledge system, as a network of knowledge nodes serving their customers, (2) consider knowledge intensive firms as their role models. We draw on an idea of Friedrich Hayek who perceives the economic problem of society as a problem of the utilisation of knowledge not given to anyone in its totality. The paper concludes by discussing some organizational obstacles on the road to re-invent banks into knowledge systems.

Title:

EVALUATION OF A VISUALISATION DESIGN FOR KNOWLEDGE SHARING AND INFORMATION DISCOVERY

Author(s):

Luis Borges Gouveia and Feliz Ribeiro Gouveia

Abstract: This paper presents a tool using a 3D interactive visualisation system that allows knowledge sharing and information discovery. The tool proposes a visualisation design using direct manipulation techniques to convey information about a structure for knowledge sharing. The structure describes a knowledge theme described as a set of concepts. The set of concepts provides a particular context description about the knowledge being shared. The application tested and presented in this paper uses the set of concepts to direct searches in the World Wide Web. The visualisation design is briefly presented and preliminary evaluation results are reported. These results show that the system tends to be better supporting people with some knowledge expertise about the knowledge being shared even if they have little World Wide Web expertise. These results seem to show some potential for the visualisation design as an interface for both knowledge sharing and information discovery for people that have already some knowledge expertise about a given theme, but usually suffer from information overload or lack of knowledge about the structure of large information spaces, such as the World Wide Web.

Title:

A DECISION SUPPORT SYSTEM MODEL FOR SUBJECTIVE DECISIONS

Author(s):

Vishv Malhotra

Abstract: . Modern government and business units routinely collect and store structured data of general interest to them. In the course of their operations, these organisations often need to take decisions that do not directly follow from the available data. Specialised managerial skills are needed to interpret the data and derive useful conclusions. Subjective assumptions and judgments are made by the mangers to interpret the data. Where the data volume is large, it may be difficult to sift the data, as the managerial skills may not be available for the repeated evaluation of every entity in the database. A decision support system is needed that can be easily reprogrammed to cater for the subjective judgments and biases of the decision-makers. In this paper, we develop a model for a decision support system to identify promising entities based on the subjective preferences. The model can easily be integrated with a relational database system/tool such as Microsoft Access to examine entities in the database and to highlight those that have superior potential based on the decision-makers subjective judgments.

Title:

XML INTERFACE FOR OBJECT ORIENTED DATABASES

Author(s):

Frank Van Lingen

Abstract: Within CERN (European Organization for Nuclear Research) there are different data sources (different in format, type and structure). Several of these sources will be flat files or data sources other than databases. To create a common interface to these sources, we decided to use XML (eXtended Markup Language). XML is becoming the de facto standard for data (exchange). Because of this there is a large number of developers of tools. This document describes a mechanism to access object-oriented databases as an XML document by using serialization on demand. Furthermore it discusses an extension of XML to achieve this.

Title:

METADATA FOR THE SEMI-STRUCTURED MONO-MEDIA DOCUMENTS

Author(s):

Ikram Amous and Anis Jedidi

Abstract: One of the main information retrieval problems on the Web is related to the poverty of describing and cataloguing any information type. One proposal to cope with this lack consists in introducing the metadata concept to enrich and structure information description and improve searching relevance. We propose here a contribution to extend the existing metadata by a set of metadata describing documents resulting from various media (text, image, audio and video). These metadata, structured with XML, makes it possible to model document indexing by their content and/or structure and to process them by query languages.

Title:

NOVEL DATA VISUALISATION AND EXPLORATION IN MULTIDIMENSIONAL DATASETS

Author(s):

Nikolaos Kotsis, George R S Weir, John D Ferguson and Douglas R MacGregor

Abstract: Commonly, decision support systems require large-scale data analysis facilities for efficient decision-making. While OLAP tools provide multidimensional analysis, traditional visualisations prove inadequate as means of viewing and exploring complex relationships across multiple dimensions. Commercial databases often support a variety of two or three dimensional visualisation facilities, including bar charts, scatter diagrams, data plots, and cross tabulations. In this context, the present paper describes a novel approach to the problem of access and visualisation for data in complex hierarchical datasets. The approach integrates a novel browsing technique, which affords user navigation in several levels of summary information, with a modified scatter projection of the measure of interest. A prototype implementation of the proposed approach has been developed. This is described and advocated as a multidimensional interface for OLAP that addresses several significant issues in visualisation and exploration of multidimensional datasets.

Title:

AN INSIGHT INTO THE AUSTRALIAN THE ERP MARKET

Author(s):

Paul Hawking and Andrew Stein

Abstract: The global ERP industry blossomed in the 1990’s automating back office operations. Research up to date has been limited especially in the relation to market penetration of these products around the world. This paper presents an analysis of the Australasian ERP market place. It looks at the market movement and demographics of companies that have implemented SAP software, the dominant ERP vendor within the Australasian marketplace. The 387 SAP customers are classified by industry sector, size, and software implemented to establish metrics for ERP implementation pertaining to the region.

Title:

OBJECT MODELS FOR MODEL BASED APPLICATIONS

Author(s):

Giorgio Bruno and Marco Torchiano

Abstract: Web based systems in general, and e-commerce applications in particular, are required to face a very high pace of change. The evolution of such systems is caused both by adaptation to the customer needs and enterprise continuous improvement strategies. Such rapid change can be achieved adopting a model-based approach in which the application is customized according to a model. The concept of model proposed in this paper is more wide that the one adopted in most modeling languages such as UML. We propose an object model that allows an application access the model according to different perspectives and abstraction levels.

Title:

ARCHITECTURE FOR REENGINEERING LEGACY DATABASES

Author(s):

Prasad N. Sivalanka, S. V. Subrahmanya and Rakesh Agarwal

Abstract: There exist different methods to facilitate database design recovery under the framework of software engineering and reengineering. These tools and methods are usually limited to a particular scenario and requirement, and thus, not generic. In most cases, new tools and methods need to be redeveloped to suit these scenarios. This can result in a significant waste of effort and increased costs. In this paper we describe a generic architecture for reengineering legacy databases, which is an outcome of working on a real software project for one of our customers 1 . The goal of this research is to formalize a process that is applicable to different database reengineering scenarios and requirements. We elaborate the steps that were actually done for implementing the project.

Title:

REDUCING INCONSISTENCY IN DATA WAREHOUSES

Author(s):

Sergio Luján-Mora and Enrique Montenegro

Abstract: One of the main problems in integrating databases into a common repository is the possible inconsistency of the values stored in them, i.e., the very same term may have different values, due to misspelling, a permuted word order, spelling variants and so on. In this paper, we present an automatic method for reducing inconsistency found in existing databases, and thus, improving data quality. All the values that refer to a same term are clustered by measuring their degree of similarity. The clustered values can be assigned to a common value that, in principle, could substitute the original values. We evaluate different similarity measures for clustering. The method we propose gives good results with a considerably low error rate.

Title:

A STRATEGY TO DEVELOPMENT ADAPTIVE WORKERS INFORMATION MANAGEMENT SYSTEMS

Author(s):

Irene Luque Ruiz, Enrique López Espinosa, Gonzalo Cerruela García and Miguel Ángel Gómez-Nieto

Abstract: Difficulties arising in the management of the information corresponding to the workers (Curriculum Vitae) are created on one hand by the heterogeneity (multimedia data), lack of structure and sheer volume of this information, and on the other by the need to analyze and make best use of these data through complex queries whose results must comply with predetermined standards or preferences ---delicate processes indeed, given the nature of the information under scrutiny. A system for the management of this information must thus combine a multitude of features to permit the manipulation of highly-structured data (classical business management systems), immense volumes of information (electronic libraries) and multimedia (image databases, sound, etc.). The present study is centered on an analysis of the characteristics of this information and presents a model which, by focusing on the nature of basic information units and taking into account the independence between structure and information, strives to afford adaptability to the requirements and standards of the organizational environment, while remaining highly adaptable to subsequent changes.

Title:

ESTABLISHING THE IMPORTANCE OF ERP IMPLEMENTATION CRITICAL SUCCESS FACTORS ALONG ASAP METHODOLOGY PROCESSES

Author(s):

José Esteves and Joan Pastor

Abstract: This research in progress paper seeks to establish the relationship between critical success factors of ERP implementations and the ASAP methodology processes. Applying the process quality management method and the grounded theory method we derived a matrix of critical success factors versus ASAP processes. This relationship will help managers to develop better strategies for supervising and controlling SAP implementation projects.

Title:

KNOWLEDGE-POWERED EXECUTIVE INFORMATION SYSTEM DESIGN

Author(s):

Sander Nijbakker and Bob Wielinga

Abstract: Why do we want an Enterprise Ontology (Architecture)? If we want to design an World Wide / Global Enterprise Information system, we need a rigid (ordered) structure at the top and adaptability at the bottom. Most ontologies stop at the level of best-practices or activities. To find the root structure we have to abstract a little further to the most abstract (atomic) ontology. This generic ontology is filled with the elementary business concepts comprising the atomic intelligent enterprise architecture. Ideas, methodology and application thereof.

Title:

MySDI: A GENERIC ARCHITECTURE TO DEVELOP SDI PERSONALISED SERVICES

Author(s):

João Ferreira and Alberto Silva

Abstract: We introduce in this paper a generic architecture to deal with the general problem: “How to Deliver the Right Information to the Right User?”. We discuss this issue through the proposal of our SDI (Selective Dissemination of Information) Personalised Architecture, called MySDI, which is based on the software agent paradigm as well as on information retrieval techniques. In order to clarify and validate this proposal we also introduce in this paper a prototype service, called MyGlobalNews, which should be a public service to provide personalised news.

Title:

DATA WAREHOUSE STRIPING: IMPROVED QUERY RESPONSE TIME

Author(s):

Jorge Bernardino and Henrique Madeira

Abstract: The increasing use of decision support systems led to an explosion in the amount of business information that must be managed by the data warehouses. Therefore, data warehouses must have efficient Online Analytical Processing (OLAP) that provides tools to satisfy the information needs of business managers, helping them to make faster and more effective decisions. Different techniques are used to improve query response time in data warehouses, ranging from classical database indexes and query optimization strategies to typical data warehouse materialized views and partitioning. But until now most of the works concentrate on centralized data warehouses where a single computer contains all the data. However, a large centralized data warehouse is very expensive because of the great setup costs and does not take advantage of the distributed nature of actual organizations operating worldwide. In this paper, we propose a data partitioning approach specially designed for distributed data warehouse environments called data warehouse striping (DWS). This technique takes advantage of the specific characteristics of star schemas and typical OLAP query profile guaranteeing optimal load balance of query execution and assuring high scalability. The proposed schema is evaluated experimentally for most typical OLAP operations using different types of queries and it is shown that an optimal speedup can be obtained.

Title:

IODBCON: A INTEGRTED OBJECT-ORIENTED DATABASE SYSTEM FOR INTEGRATING INFORMATION ABOUT ARCHITECTURE DESIGN AND CONSTRUCTION PROCESSES

Author(s):

Farhi Marir and Yau Jim Yip

Abstract: This paper presents IODBCON (Integrated Object Database for Construction), an interactive system for integrating CAD and construction related applications to address the problems of design fragmentation and the gap that exists between construction and design processes. It provides a vehicle for storing architectural design information in an integrated construction object-oriented database that can be shared by a range of computer applications. The IODBCON model is characterised by several new features. It uses the object-oriented modelling approach to establish standard models for architectural design that comply with Industry Foundation Classes (IFC) for common interpretation of construction design objects and with CORBA (Common Object Request Broker Architecture) for distribution of the objects amongst the construction applications. It aims to achieve independence from the display environment by providing a set of Abstract Factory and Abstract Design Classes, which provide abstractions that the design model classes can use to draw and render themselves in any display environments. More importantly, graphical and textual information about the building design components is directly saved as instances in an object-oriented database without passing through the existing CAD databases. To demonstrate the independence from the display environment, two applications using IODBCON models are implemented. The first is an interactive AutoCAD application, which creates instances of the IODBCON design model and stores them directly in the distributed object database. The second A web-based application using VRML (Virtual Reality Modelling Language) for remotely interrogating information stored within the integrated database, visualising and manipulating the design components in 3D environment. Also, to demonstrate the feasibility and practicability of the OSCON (Open Systems for Construction) object-oriented product model, three OSCON construction applications that access and share the IODBCON building design instances are presented.

Title:

THE CONCEPT OF INFORMATIONAL ECOLOGY

Author(s):

Luigi Lancieri

Abstract: Through the metaphor of informational ecology this document gives a report on the various information re-use strategies in the company. We propose a segmentation model of these strategies and an evaluation method of its benefit. We insist on the re-use of the information contained in intermediate spaces of storages which are the proxy-caches, the news servers or other types of shared memories available in the company. We show, with examples, that informational ecology can be advantageous in more than one way and in particular to optimize the information management in the company.

Title:

MODELLING DATA INTEGRATION IN AN OBJECT BASED GEOGRAPHICAL INFORMATION SYSTEM

Author(s):

Maria Luisa Damiani

Abstract: The integration of geographical data from multiple and heterogeneous sources is a complex process generally performed in an incremental way. Current Gis systems provide a wide range of services to support at least physical data integration. A critical point in the development of a Gis application is the design of the integration process. Such a design is necessary to plan out the integration operations which are to be performed to achieve an effective database. Integration process modeling can simplify both the analysis and the documentation of the database construction. In the paper a possible and general approach to the problem is discussed. A case study of spatial data integration in the nautical field is finally presented.

Title:

INTEGRATING ASSOCIATION RULE MINING ALGORITHMS WITH RELATIONAL DATABASE SYSTEMS

Author(s):

Jochen Hipp, Ulrich Güntzer and Udo Grimmer

Abstract: Mining for association rules is one of the fundamental data mining methods. In this paper we describe how to eÆciently integrate association rule mining al- gorithms with relational database systems. From our point of view direct access of the algorithms to the database system is a basic requirement when transferring data mining technology into daily operation. This is especially true in the context of large data warehouses, where exporting the mining data and preparing it outside the database system becomes annoying or even infeasible. The development of our own approach is mainly motivated by shortcomings of current solutions. We inves- tigate the most challenging problems by contrasting the prototypical but somewhat academic association mining scenario from basket analysis with a real-world appli- cation. We thoroughly compile the requirements arising from mining an operative data warehouse at DaimlerChrysler. We generalize the requirements and address them by developing our own approach. We explain its basic design and give the details behind our implementation. Based on the warehouse, we evaluate our own approach together with commercial mining solutions. It turns out that regarding runtime and scalability we clearly outperform the commercial tools accessible to us. More important, our new approach supports mining tasks that are not directly addressable by commercial mining solutions.

Title:

A UNIVERSAL TECHNIQUE FOR RELATING HETEROGENEOUS DATA MODELS

Author(s):

David Nelson, Michael Heather and Brian Nicholas Rossiter

Abstract: Interoperability is considered in the context of the ISO standards for the Information Resource Dictionary System (IRDS) which provide a complete definition of an information system from real-world abstractions through constructs employed for data and function descriptions to the physical data values held on disk. The IRDS gives a four-level architecture which is considered 1) informally in terms of an interpretation of the levels and the level-pairs between them, 2) in terms of mappings between the levels and 3) formally in terms of a composition of functors and adjoints across the various levels. An example is given of the application of IRDS in a categorical context comparing the mappings from abstractions to values in relational and object-based systems. Such comparisons provide a route for interoperability between heterogeneous systems.

Title:

EXPLOITING TEMPORAL GIS AND SPATIO-TEMPORAL DATA TO ENHANCE TELECOM NETWORK PLANNING AND DEVELOPMENT

Author(s):

Dragan Stojanovic, Slobodanka Djordjevic-Kajan and Zoran Stojanovic

Abstract: In this paper, modeling and management of spatio-temporal-thematic data within an object-oriented GIS application framework, are presented. The object-oriented modeling concepts have been applied in integration of spatial, thematic and temporal geographic information in spatio-temporal object model. Based on model implementation and development of appropriate components for temporal GIS application functionality, a temporal GIS application framework has been developed. Description of its architecture and functional components dedicated to management of temporal aspect of geographic information is given. Planning and development of telecommunication networks using temporal GIS application, developed around application framework are presented. Great performance and qualitative improvements and benefits enabled by such GIS developments are described.

Title:

STRATEGIC IS PLANNING PRACTICES

Author(s):

Mario Spremic and Ivan Strugar

Abstract: The role of information technology in recent years grows in its importance. Thus the strategic IS planning becomes a part of company strategic business plans. This paper presents the results of survey on the strategic IS planning practices of Croatian companies. The result of the survey are compared with similar surveys in Slovenia and Singapore. In large Croatian companies IT is still concerned just as a tool for automatization of present business processes, completely neglecting challenging role of IT as competitive resource on market. It is obvious that source of this problems comes from lack of knowledge and interest from top management structures of large corporations. Thus the significant efforts must be done on management side, and solution lays maybe in necessity to develop completely new hybrid manager profile. Evidently that this type of manager must get additional knowledge in strategic business planning and IT management.

Title:

PRESENTATION OF AN INFORMATION SYSTEMS ARCHITECTURE MODEL FOR PUBLIC SECTOR

Author(s):

Tania Fatima Calvi Tait and Roberto C. S. Pacheco

Abstract: This paper presents an information systems architecture (ISA) model that comprises the integration of information systems, technology, business processes and users in public sector environment. The ISA model presented considers specific aspects of the public sector as well characteristics of information systems development and use in this sector found in the literature and in the studies realized in informatic services Brazilian State public enterprises. The model proposed is based in the business, information technology (IT) and information systems integration and it was structured with five components: (a) Government structure (mission and organizational culture, Planning and government platform); (b) Public services (considered the “ business” of public structure, with the information for citizens, for top level and government administrative technical); (c) Information systems (by including the legacy systems and executives systems information); (d) Information technology (centered in investment policies and the government computational platforms – as micro-computer and mainframe relationship) and (e) Users (centered in the necessities for public – training, adaptation and use of the SI). The model proposed was submitted to validation from informatic services Brazilian State public enterprises. The results point out the relevance of the integrated vision of their components and they permit to establish strategies for implantation of ISA model, in order to observing public sector specificity.

Title:

SUPPORTING QUERY PROCESSING ACROSS APPLICATION SYSTEMS

Author(s):

Klaudia Hergula, Gunnar Beck and Theo Härder

Abstract: With the emergence of so-called application systems which encapsulate data-bases and related application components, pure data integration using, for example, a fed-erated database system is not possible anymore. Instead, access via predefined functions is the only way to get data from an application system. As a result, the combination of generic query as well as predefined function access is needed in order to integrate heterogeneous data sources. In this paper, we present a middleware approach supporting this novel and extended kind of integration. Starting with the overall architecture, we explain the function-ality and cooperation of its core components: a federated database system (FDBS) and a workflow management system (WfMS) connected via a wrapper. Afterwards, we concen-trate on essential aspects of query processing across these heterogeneous components. Motivated by optimization demands for such query processing, we describe the native func-tionality provided by the WfMS. Moreover, we discuss how this functionality can be extended within the wrapper in order to obtain salient features for query optimization.

Title:

OBJECT EVOLUTION MECHANISMS IN OBJECT DATABASES

Author(s):

Slimane Hammoudi

Abstract: Nowadays, most Object Oriented Database Systems (OODBs) display serious shortcoming in their ability to model the evolving and multifaceted nature of common real world entities. While researcher in knowledge representation systems have been aware of this problem for some time, database systems represent an environment in which this problem is particularly severe. OODBs store objects over longer periods, during which the represented entities evolve. The intimate and permanent binding of an object to a single type (class) inhibits the tracking of real-world entities over time. In recent years, various mechanisms for supporting many-faceted and evolving objects in the context of object oriented data models have been proposed in the literature. This paper examines in a first part the semantics associated with object evolution and explores the implications of these semantics on object oriented concepts. In a second part, we discusses features regarding the functionality’s of various object evolution mechanisms proposed in the literature in the context of OODBs and finally compares four representatives and more recent works in this area.

Title:

INTEGRATION OF DIFFERENT DATA SOURCES AND MESSAGE QUEUING SYSTEM IN POSTNET-CASE STUDIES

Author(s):

Dejan Damnjanovic, Zoran Ristic, Miodrag Stanic, Petar Opacic, Boban Peric and Maja Radovanovic

Abstract: In the last 3 years the Post of Serbia has built a large enterprise network called Postnet. It is organized like an intranet, connecting all parts of the postal system nationwide. Besides connecting internal users, the goal of Postnet was to connect various external systems such as banks, the Telecom of Serbia, Internet providers, tourist agencies etc. Many of them require on-line real time transactions to different data sources like Oracle, IBM DB2 or MS SQL Server DBMS. Since each post-office is using local SQL Server database with its copy of necessary data, it was needed to ensure that each transaction should occur across two, most likely different, databases. To solve this problem we discussed several different technologies like Microsoft DNA, Sun’s EJB and OMG CORBA. We decided to use multitired architecture based on Microsoft Transaction Server (MTS) where each involved system is wrapped into one or more MTS components. Each component exposes corporate data and business logic through well-defined interfaces. The most interesting applications are those that integrate Postnet as infrastructure for the PostBank in its participation in new national payment system. These applications use MTS as transaction integrator of IBM DB2, SQL Server and Microsoft Message Queue (MSMQ) transactions.

Title:

INFORMATION SYSTEMS INTEGRATION

Author(s):

Fredrik Ericsson

Abstract: In this paper we address organizational and technological issues on information systems integration and architectures when it comes to self-developed relational database management systems, and how these issues can be identified. Organizational and technological issues have been identified using a three level of analysis that incorporates organizational context, application, and data source. We introduce the concept of data source interface and application interface in order to analyze the relation between data sources and conformity in how systems appear and behave on user’s command. The empirical research represented in this paper has been conducted through a case study. The unit of analysis is a Swedish small to medium-sized manufacturing company. The organizational and technological issues outlined in this paper are valid in a context where developers primary activity does not reside in the field of information systems development and where the organization does not have an IT function responsible for the organization’s use of IT.

Title:

MIDEA: A MULTIDIMENSIONAL DATA WAREHOUSE METHODOLOGY

Author(s):

José María Cavero, Mario Piattini and Esperanza Marcos

Abstract: Developing a Data Warehouse has become a critical factor for many companies. Specific issues, such as conceptual modeling, schemes translation from operational systems, physical design, etc... have been widely treated. Unfortunately, there is not a general accepted complete methodology for data warehouse design. In this work we present MIDEA, a multidimensional data warehouse development methodology based on a multidimensional data model. The methodology is integrated within a general software development methodology.

Title:

INSERTING DATA WAREHOUSE IN CORPORATIONS

Author(s):

Walter Adel Leite Pereira and Karin Becker

Abstract: A particular interest has been observed in the Data Warehouse (DW) technology by corporations aiming to improve their decision processes. A large number of corporations that have no tradition on the use of computer systems for decision support, has to rely on a team qualified in the development of traditional operational systems and database technology, but inexperienced on DW development issues. Moreover, for a number of reasons (e.g. availability, costs, privacy), it is not always possible to count on external development teams or consultants. This work presents a methodology targeted at the development of DW pilot projects, which aims at the smooth adoption of DW technology by corporations. The methodology has been successfully tested in a military DW pilot project, and the results obtained so far confirm its adequacy and consistency towards the established goals. The paper describes the striking features of methodology and analyses its application in a real case study.

Title:

FRONT-END TOOLS IN DATA WAREHOUSING: INFORMIX METACUBE (ROLAP) VS. COGNOS POWERPLAY (MOLAP)

Author(s):

Enrique Medina and Juan C. Trujillo

Abstract: A Data Warehouse (DW) is a subject oriented, integrated, nonvolatile, time variant collection of data in support of management decisions. On-Line Analytical Processing (OLAP) tools based on the Multidimensional (MD) model are the predominant front-end tools to analyze data in DW. Current OLAP servers can be either relational systems (ROLAP) or proprietary multidimensional systems (MOLAP). This paper presents the underlying semantics to the MD model and compares how current ROLAP and MOLAP front-end tools provide these semantics.

Title:

AUTOMATION QUERY PROCESSING SELECTION ALGORITHMS

Author(s):

Ying Wah Teh, Abu Bakar Zaitun and Sai Peck Lee

Abstract: In manufacturing environment, most of processing data is stored in the commercial databases and the design of database depends on the database designer. Given a query, the database management system picks up one of query processing strategies to full the user requirement. A user is given impression is hard to optimize the response time of a query. In this paper, we introduce the readers to current research activities pertaining to query processing in the manufacturing environment. We list out the possible query result, and recommend the appropriate query processing techniques for respective query result. And then we deduce an automation query processing selection algorithms to propose the appropriate query processing technique for users to improve the response time.

Title:

DESIGN OF TEXTUAL DATAWEB

Author(s):

Kais Khrouf

Abstract: The development of the Internet generated the increase in the volume of information available on this network. These information are used more and more by the companies for economic, strategic, scientific or technical development. The most common way for a user to search these information across the web, is to use the "search robots". However, results on this kind of tools don’t often satisfy the users. It is the reason why, the dataweb constitutes today a need for the companies in order to take maximum advantages of the web and information it contains. The proposed warehouse allows us to store and analyze any type of information extracted from the web.

Title:

AN ARCHITECTURE FOR INCORPORATING BUSINESS RULES IN AN OBJECT-ORIENTED SYSTEM

Author(s):

Permanand Mohan and Sheik Yussuff

Abstract: This paper discusses the design of an object-oriented system with business rules where the rules are treated as objects in their own right. The paper argues that an architecture-centric approach is essential in developing any software system and puts forward a multi-tiered architecture for incorporating business rules in an object-oriented environment. In the architecture, rule objects are completely separate from the domain objects, promoting rule maintenance. No assumption is made about other layers such as the persistence layer, allowing domain objects to be stored in any manner such as in an object database, a relational database, a flat file, or some other format. The architecture also lends itself to object distribution of both domain and rule objects using standards such as the Common Object Request Broker Architecture.

Title:

TOWARD MEASURING THE SCALABILITY OF ENTERPRISE INFORMATION SYSTEMS

Author(s):

Ronald E. Giachetti, Chin-Shen Chen and Oscar A. Saenz

Abstract: Scalability describes a desirable characteristic of a system that has come to the forefront with the emergence of the Internet as a platform for business systems. Scalability broadly defined as the ability of a system to adapt to change while maintaining an acceptable level of performance is a critical characteristic any system dealing with the Internet must possess. Most all software vendors, system architectures, and system designers claim to have a scalable system. This article develops a mathematical foundation on which scalability measurement of enterprise information systems can be based. The mathematical foundation is based on measurement theory and this paper shows how this can be applied to measure scalability of enterprise systems in the context of business-to-business commerce in supply chains.

Title:

SPINO: A DISTRIBUTED ARCHITECTURE FOR MASSIVE TEXT STORAGE

Author(s):

José Guimarães and Paulo Trezentos

Abstract: In this paper we introduce a framework for text data storage and retrieval. As an alternative for proprietary solutions is used a distributed architecture based on a Linux Beowulf Cluster and open source tools. In order to validate the proposed solution an prototype (Spino -Serviço de Pesquisa INteligente ou Orientada) had been builded. The prototype is oriented for retrieving USENET articles through a Web interface. Most of the points described can be applied for scenarios not related with Internet. The framework proposed is within Databases and Information Systems Integration area and describes simultaneously the conceptual and pratical aspects of its implementation. Suggested solution is presented in three different perspectives: web serving, off-line processing and database querying.

Title:

INTERACTIVE SEARCH IN WEB CATALOGUES

Author(s):

G. Ciocca, I. Gagliardi, R. Schettini and S. Zuffi

Abstract: E-commerce is one of the most challenging fields of application of the new Internet technologies. It is clear that the larger the number of items available to be presented, the more difficult it is to guide the user towards the product he is looking for. In this article we present a prototype for the interactive search of images in high-quality electronic catalogues. The system is based on a visual information search engine, and integrates a Color Management System for the faithful display of images.

Title:

SPECIALIZING AGENTS ON DATA INTEGRATION IN A DATA WAREHOUSING SYSTEM ENVIRONMENT

Author(s):

Joaquim Gonçalves, Anália Lourenço and Orlando Belo

Abstract: Data selection, extraction and processing are frequent tasks in enterprise information systems. Their relevance emerged from the information requirements of enterprise managers to have permanently available all the possible information about their working area. They try to reach important pieces of data that will allow them to extract useful and valuable knowledge in order to correct past misleads, to improve their performance inside the organization, or even to foresee market opportunities. Nowadays competitiveness between enterprises makes such process crucial. It is necessary, and convenient, to surround the decision-makers with all possible elements that might help them in their daily activities. In fact, most of the enterprises' decision-making processes need to be global and effective, as the enterprises’ success depends on it. However, the data maintained in their operational systems is not commonly arranged according to their analytical needs and management perspectives, which do not contributes significantly to decision-makers effectiveness. Usually, the data is structured and treated aiming to support operational tasks and backup daily activities. Obviously, some problems rise when it is intended to orient such data to analytical purposes. Many times its structure has to be rebuilt and its quality needs to be improved. With today’s data growth, more and more, selecting, gathering and treating data are very complex and time-consuming tasks. In order to make these tasks easier, more reliable and faster, it was conceived and developed a specialized agent-based tool that provides a distributed computational platform especially designed and conceived to support such kind of tasks and provide a set of special means of bridging to integrate operational data into specific data warehousing systems. This paper describes it, presenting its main functional architecture and components, and emphasizing the aspects related to its development and implementation.

Title:

SUPPORTING DECENTRALISED SOFTWARE-INTENSIVE PROCESSES USING ZETA COMPONENT-BASED ARCHITECTURE DESCRIPTION LANGUAGE

Author(s):

Ilham Alloui and Flavio Oquendo

Abstract: In order to provide a large variety of software products and to reduce time to market, software engineering is nowadays moving towards an architecture-based development where systems are built by composing or assembling existing components that are often developed independently. In this paper we advocate that a similar approach can be adopted to build software-intensive processes that are characterised by their complexity, heterogeneity and decentralisation. Indeed considering a software-intensive process as monolithic is no longer true since parts of it may exist and run separately from the others. Therefore those parts referred to as processlets must be considered as the building blocks for larger software processes. The paper presents ZETA, an interaction-based architecture description language for building software-intensive processes starting from existing processlets. ZETA is intended to be used by process engineers in order to design the “software glue” that connects processlets so that their interactions can be managed and/or controlled at runtime. ZETA addresses the contents of interactions through an intentional approach where interactions are guided by intentions that are revoked/maintained given some defined conditions. The underlying theory of the proposed approach is logic-based. The industrial relevance of the proposed approach, in a decentralised and heterogeneous context, is currently being demonstrated based on case studies from the automotive industry within the framework of an ESPRIT IV LTR Project.

Title:

A UNIFIED FRAMEWORK TO INCORPORATE SOFT QUERY INTO IMAGE RETRIEVAL SYSTEMS

Author(s):

Cyrus Shahabi and Yi-Shin Chen

Abstract: We explore the use of soft computing and user de ned classi cations in multimedia database systems for content- based queries. With multimedia databases, due to subjectivity of human perception, an object may belong to di erent classes with di erent probabilities (\soft" membership), as opposed to \hard" membership supported by conventional database systems. Therefore, we propose a uni ed model that captures both hard and soft memberships. In practice, however, our model signi cantly increases the computation complexity (both online and o -line) and the storage complexity of content-based queries. Previously, we introduced a novel fuzzy-logic based aggregation technique to address the online computation complexity. In this paper, we propose novel techniques to cluster sparse user profiles (i.e., items with missing data) to reduce both the o -line computation complexity and the storage complexity.

Title:

THE DECOR TOOLBOX FOR WORKFLOW-EMBEDDED ORGANIZATIONAL MEMORY ACCESS

Author(s):

Andreas Abecker, Ansgar Bernardi, Spyridon Ntioudis, Gregory Mentzas, Rudi Herterich, Christian Houy, Stephan Müller and Maria Legal

Abstract: We shortly motivate the idea of business-process oriented knowledge management (BPOKM) and sketch the basic approaches to achieve this goal. Then we describe the DECOR (Delivery of context-sensitive organisational knowledge) project which develops, tests, and consolidates new methods and tools for BPOKM. DECOR builds upon the KnowMore framework [34,35] for organizational memories (OM), but tries to overcome some limitations of this approach. In the DECOR project, three end-user environments serve as test-beds for validation and iterative improvement of innovative approaches to build: - knowledge archives organised around formal representations of business processes to facilitate navigation and access, - active information delivery services which - in collaboration with a workflow tool to support weakly-structured knowledge-intensive work - offer the user in a context-sensitive manner helpful information from the knowledge archive, and - methods for an organisation analysis from the knowledge perspective, required as supporting methods to design and introduce the former two systems In this paper, we present the basic modules of the DECOR toolkit and elaborate on their current status of development.

Title:

IINTEGRATING LEGACY APPLICATIONS WITHIN A JAVA/CORBA ENVIRONMENT

Author(s):

Rod Fatoohi and Lance Smith

Abstract: This paper examines the design and implementation process of applying a Java/CORBA solution to legacy code support environments. A support environment is defined as a collection of programs and scripts that support a monolithic application. The goal in developing an object oriented support environment is to allow monolithic legacy codes to accept inputs from and provide outputs to highly distributed applications and databases. The monolithic codes for this research are Computational Fluid Dynamics (CFD) applications. Batches of CFD jobs are currently run via a collection of C shell scripts. As production demands have grown, the scripts have become more complex. A Java/CORBA solution has been developed in order to replace the scripting system with a flexible, extensible production system. The implementation of four technologies is explored here: Java, CORBA, UML, and software design patterns. The architecture, implementation and design issues are presented. Finally, concluding remarks are provided.

Title:

CONCEPTUAL MODELING OF FUZZY OBJECT-ORIENTED DATABASE SYSTEMS

Author(s):

A. Goswami and Prabin Kumar Panigrahi

Abstract: In this paper we propose a new approach for the development of Fuzzy Object Oriented Database model. Real world database application requires users to specify their need to represent, store and manipulate imprecise, uncertain, vague information in a natural language like English. The development of a model in a Relational Database Management System starts with user requirement specifications, normalization and then conversion to tables. Our aim is to develop an equivalent methodology for Fuzzy Object Oriented Database System.

Title:

THE MOMIS APPROACH TO INFORMATION INTEGRATION

Author(s):

D. Beneventano, S. Bergamaschi, F. Guerra and M. Vincini

Abstract: The web explosion, both at internet and intranet level, has transformed the electronic information system from single isolated node to an entry points into a worldwide network of information exchange and business transactions.

Area 2 - ARTIFICIAL INTELLIGENCE AND DECISION SUPPORT SYSTEMS

Title:

MOVING CODE (SERVLET STRATEGY) VS. INVITING CODE (APPLET STRATEGY)

Author(s):

Zakaria Maamar

Abstract:

In this position paper, we aim at describing two strategies that could enhance the functioning of software agents. Servlet and applet denote respectively these strategies. In the servlet strategy, the flow takes place from the client to the server. The applet strategy performs differently; the flow takes place from the server to the client. Applying both strategies to workflows, as a potential application domain, is also discussed.


Title:

A LAYERED ARCHITECTURE FOR MULTI-AGENT SYSTEMS TO SUPPORT A WATER MAIN REHABILITATION STRATEGY 299

Author(s):

Bernadette Sharp, E. Robert. Edwards and Angela Dean

Abstract:

In complex applications like the water utilities the expertise that we are trying to integrate into our system consists of the various kinds of knowledge, skills and strategies possessed by different groups who collaborate to develop an efficient and pro-active water main rehabilitation strategy. A single knowledge based system would fail to integrate this diversity of knowledge and strategy. A multi agent system is an ideal set up to represent this diversity. This paper describes how a layered architecture can bring the local expertise and strategies of various groups together to meet the business objectives of an organisation and produce a coherent and pro-active rehabilitation strategy.


Title:

AGENT-BASED APPLICATION ENGINEERING

Author(s):

Rosario Girardi

Abstract:

Main difficulties in the practice of reuse techniques are due to the lack of reusable software abstractions for the development of specific applications in various and rapidly changing domains. Therefore, current research has been centered on problems related to building reusable software artifacts in a high level of abstraction - like language and domain languages, reusable software architectures and software patterns. Application Engineering is the main discipline addressing solutions to these problems. This work proposes a model for developing reusable software using the agent paradigm. Reusable software abstractions generated through Agent-based Application Engineering are analyzed considering both their abstraction level and domain dependence.


Title:

A MULTIAGENT SYSTEM APPLIED TO THE DESIGN OF PETROLEUM OFF-SHORE PLATFORMS

Author(s):

José Avelino Placca and Ana Cristina Bicharra Garcia

Abstract:

This paper presents a model for cooperative multi-agents that interact in a closed environment, i.e., an environment where the rules are well known by the agents and do not change dynamically. In a computational environment where several different software agents share resources to reach their goals, the occurrence of conflicts is inevitable. Therefore it is of highest importance to have an efficient mechanism to solve such conflicts. While other models in the literature present solutions for conflict resolution based on centralized and distributed algorithms, our proposal is to solve the conflicts in a hierarchical manner. The proposed model is based on the application of Social Laws and it was inspired by the theory of Jean Jacques Rousseau’s Social Contract, being denominated Tri-Coord Model, that is, of Triple Coordination. We implemented a prototype based on the Tri-Coord Model, and applied to the task of oil and gas process floorplan design in a petroleum off-shore platform. In that domain the project is divided in several subsystems, with an agent being responsible for each sub-system. Our experiments indicate that the Tri-Coord Model can indeed yield a better performance in the development of a project. First, because it decreases the interruptions for accomplishment of meetings to solve conflicts related to customization of sub-system’s parameters. Second, because it removes the bottleneck associated to a centralized model for conflict resolution. Third, because through the regulator environment of Tri-Coord the agents behavior can be controlled implicitly by the environment. In that way the agents learn how to interact correctly and the independence between the environment and the agents turns the system more flexible.


Title:

MULTI-AGENT DYNAMIC SCHEDULING AND RE-SCHEDULING WITH GLOBAL TEMPORAL CONSTRAINTS

Author(s):

Joaquim Reis and Nuno Mamede

Abstract:

A co-ordination mechanism is proposed for multi-agent production-distribution co-operative scheduling problems, based on a purely temporal perspective. This mechanism is based on communication among pairs of client-supplier agents involved in the problem, and allows agents to locally perceive hard global temporal constraints. By exchanging limited specific information, the agents are able to recognise non over-constrained problems and, in that case, rule out non temporally-feasible solutions and establish an initial solution. The information is then used to guide re-scheduling and repair the initial solution and converge to a final one.


Title:

AN INTELLIGENT AGENT-BASED ORDER PLANNING FOR DYNAMIC NETWORKED ENTERPRISES

Author(s):

Américo L. Azevedo, César Toscano and João Bastos

Abstract:

There is currently an increasing interest in exploring the opportunities for competitive advantage that can be gained by reinforcing core competencies and innovative capabilities through networks of industrial and business partners.

This paper firstly identifies some of the gaps that exist within current information systems that claim to support eBusiness and eWork in networked enterprises and describes some of the general requirements of distributed and decentralised information systems for companies operating in networks. It goes on to cover some principles for the design of a distributed IS providing an advanced infrastructure to support general co-operation, particular methodologies for co-operative and collaborative planning and guidelines for network set-up and support.

The present work is one of the areas currently being delivered as part of the European IST consortium called Co-OPERATE. A distributed and decentralised information system, based on an architecture of agents and extensively using the internet, is being designed and implemented as a means to provide new and more powerful decision support tools for networked enterprises.


Title:

MACHINE LEARNING APPROACHES FOR IMAGE ANALYSIS: RECOGNITION OF HAND ORDERS BY A MOBILE ROBOT

Author(s):

Basilio Sierra, Iñaki Rañó, Elena Lazkano and Unai Gisasola

Abstract:

The work described in this paper is part of a project in which the aim is to deliver hand signals to a mobile B21 robot equipped with a color digital camera that captures these signals in order to be interpreted as robotic instructions. To carry out this objective, we first need to distinguish the hand and its position in order to achieve the semantics of the order given to the robot. To identify the hand from the background, we search for the skin colored pixels in the picture. In this paper the task is presented as a machine learning classification problem in which the goal is to determine, given a general picture, which of the pixels corresponds to the hand and which of them compose the background. Results of the classification algorithms used are converted to black and white images, where the white pixels indicate the hand and the black pixels indicate the background. We have used different Machine Learning algorithms and compared the accuracy of different approaches used by the Machine Learning community.


Title:

A KNOWLEDGE-ACQUISITION METHODOLOGY FOR A BLAST FURNACE EXPERT SYSTEM USING MACHINE LEARNING TECHNIQUES

Author(s):

Eugenia Díaz, Javier Tuya and Faustino Obeso

Abstract:

This paper describes a methodology for obtaining the knowledge that an expert system needs for controlling a blast furnace as if it were an expert operator. The methodology separates useful knowledge from erroneous knowledge and refines the resulting rules so as to achieve a manageable and effective rules system.


Title:

USING VIRTUAL REALITY DATA MINING FOR NETWORK MANAGEMENT

Author(s):

K.E. Thornton and C. Radix

Abstract:

In this paper a Virtual Reality Data Mining (VRDM) tool is described which has been developed over the past two years in order to provide network management of ATM networks. The tool enables network data capture, and visualization of this data. A demonstration of the tool may be found at :- http://www.durham.ac.uk/CompSci/research/dmg. In our work we have reduced the time costs of the use of VR environments by combining approaches taken in Functional Programming and Data Mining. This has led to the production of a VRDM tool which enables rapid, focused analysis of network information at a required layer, and element, of a network. The tool we describe is the first application of Virtual Reality for network management via the use of embedded, distributed (parallelized), Data Mining algorithms.


Title:

ONTOLOGY-DRIVE VIRTUAL PRODUCTION NETWORK CONFIGURATION: A CONCEPT AND CONSTRAINT-OBJECT-ORIENTED KNOWLEDGE MANAGEMENT

Author(s):

Alexander V. Smirnov

Abstract:

Interest in global businesses and such a new form of co-operation as Virtual Production Network (VPNet) is growing along with increasing use of Internet-based engineering and management technologies, and the trend towards VPNet data & knowledge management. Ontology-drive approach for VPNet configuration is a new approach to configuration of global production network in order to improve knowledge efficiency for decision making over total VPNet facility life-time. A kernel of this approach is a distributed multi-level constraint satisfaction technology based on a shared constraint-object-oriented knowledge domain model "product – process - resources". This paper discusses a generic methodology of VPNet configuration management and ontology-drive information support based on Knowledge Management Technology for distributed decision making.


Title:

CONFLICT AND NEGOTIATION AMONG INTENTIONAL AGENTS

Author(s):

Fernando Lopes, Nuno Mamede, A. Q. Novais and Helder Coelho

Abstract:

Negotiation has been extensively discussed in management science, economic, and social psychology. Recent growing interest in artificial agents and their potential application in areas such as electronic commerce has given increased importance to automated negotiation. This paper defines the social concept of conflict of interests, presents a formal prenegotiation model that acknowledges the role of conflict as a driving force for negotiation, and introduces a generic negotiation mechanism that handles multi-party, multi-issue and single or repeated rounds.


Title:

QUANTIFICATION OF THE EMOTIONAL QUOTIENT OF THE INTELLIGENCE USING THE CLASSIC AND FUZZY LOGIC

Author(s):

Lucimar F. de Carvalho, Roberto Rabello, Rosane R. de Morais, Sílvia M. Nassar and Cristiane Koehler

Abstract:

The objective of this paper is to integrate and compare the results of several tests of Intelligence Quotient (IQ). To Integrate through the use of a software that works the classic logic in the identification of the Emotional Intelligence (EI) and compare the tests of IQ, after the identification of EI through the quantification of three scales: Wechsler of Adult Intelligence Scale (Wais), Stanford Binet and Progressive Matrices using the modeling of the fuzzy logic. The software can be used to quantify the people's emotional capacity – an important factor in the development of IQ, howener it should not be used for the definitive diagnosis, but for aid to the taking of decision.


Title:

IMPLEMENTATION AND APPLICATION OF FUZZY CASE-BASED EXPERT SYSTEM

Author(s):

Du Jianfeng and Song Junde

Abstract:

Simulating the thought and inference of human being is an important methodology to develop the knowledge-based intelligent system. This paper researches on the implementation techniques of fuzzy casebased expert system (FC-ES). The emphasis is put on the design and implementation of fuzzy case inference engine (FC-IE). This paper creates the structure of frame-based classified fuzzy case representation, gives the definition of one case searching principle, puts forward two kinds practical fuzzy case matching algorithm. Taking the mobile communication network optimization as one application of FC-ES, one example is presented to prove the feasibility and efficiency of FC-IE.


Title:

WINWIN DECISION SUPPORT FRAMEWORK: A CASE STUDY ON STUDENTS’ IN-COURSE-ASSESSMENT IN A SOFTWARE ENGINEERING MODULE

Author(s):

Peter K Oriogun and R Mikusauskas

Abstract:

This paper investigated how a particular group of students implemented the WinWin decision support framework in the resolution of conflicts through negotiation after the stakeholders have had the opportunity to raise issues, select options and finally arriving at a negotiated agreements satisfying all the parties involved. A statistical analysis of students' In-course-Assessment (ICA) for the module Software Engineering for Computer Science (IM283) is presented, and, the paper is proposing the studens’ Negotiated Incremental Model (NIM) as a software process model for developing software in a semester framework.


Title:

MODEL MANAGEMENT FACILITIES FOR CYBERDSS

Author(s):

Jamilin Jais, H. Selamat, M. Azim A. Ghani ,A. Mamat, Zarina A. Rahman and H. Hussein

Abstract:

Model management in cyber decision support systems (Cyber DSS) is a new approach to problem-solving. This is because professional judgement and insight are critical in decision-making. DSS is designed to support a manager's skill at all stages of decision-making such as problem identification, choosing relevant data to work with, picking an appropriate approach to be used in making the decision and evaluating the alternative course of action. In complex decision situations, it will often be necessary to coordinate the application of multiple decision models for solving a problem. DSS need a model management component that handles the tasks of identifying appropriate models from a problem description, sequencing their application, and in substantiating them with the necessary data.


Title:

SARPlan: A DECISION SUPPORT SYSTEM FOR CANADIAN SEARCH AND RESCUE OPERATIONS

Author(s):

Irène Abi-Zeid

Abstract:

We present SARPlan, a decision support system designed to assist search mission coordinators (SMC) of the Canadian Forces in the optimal planning of search and rescue (SAR) missions. SARPlan is a geographic information system that provides an optimal allocation of the available search effort. The optimization modules are based on search theory and on Constraint Satisfaction Programming. Statistical models for determining the search object location distributions are also included. The anticipated benefits of SARPlan include speeding up search and rescue operations hence increasing the chances of finding lost aircraft and survivors, resulting in saved lives. In addition to being a new tool for the SMC, SARPlan introduces new elements to the current working procedures.


Title:

THE FIRST TAX RETURN ASSESSMENT EXPERT SYSTEM IN SWITZERLAND

Author(s):

Marco Bettoni and Georges Fuhrer

Abstract:

In realising the first Tax Return Assessment Expert System in Switzerland we had first to make a convincing business case for an AI innovation in a traditional governmental environment, secondly to show in the daily business environment that what can be demonstrated to be viable in theory does also work in practice, thirdly to minimize the gap between the tacit knowledge in the head of assessment experts and the explicit model of expertise that specifies the domain knowledge and finally to minimize the gap between the specified expert knowledge and the system knowledge formalized in the knowledge base. We present the project, our approach to meeting these challenges, the current state of the productive system and a sketch of the final system under development.


Title:

A PRELIMINARY STUDY OF A NEW CLASSIFICATION TO BUILD HOMOGENEOUS PATIENT’S GROUPS IN HOME-BASED CARE

Author(s):

Céline Robardet and Christine Verdier

Abstract:

In the context of home based care evaluation, we propose a new methodology for creating homogeneous groups of patients. This tool has the particularity of providing two related partitions, one that gathers patients with similar descriptors, and the other that groups together the descriptors, which characterized similar patients. The two partitions are linked by the fact that at each set of descriptors fits a set of patients. These groups can be used for any types of evaluation in health care: cost, quality of care and so on.


Title:

THE EFFECTS OF DIFFERENT FEATURE SETS ON THE WEB PAGE CATEGORIZATION PROBLEM USING THE ITERATIVE CROSS-TRAINING ALGORITHM

Author(s):

Nuanwan Soonthornphisaj and Boonserm Kijsirikul

Abstract:

The paper presents the effects of different feature sets on the Web page categorization problem. These features are words appearing in the content of a Web page, words appearing on the hyperlinks, which link to the page and words appearing on every headings in the page. The experiments are conducted using a new algorithm called the Iterative Cross-Training algorithm (ICT) which was successfully applied to Thai Web page identification. The main concept of ICT is to iteratively train two sub-classifiers by using unlabeled examples in crossing manner. We compare ICT against supervised naï ve Bayes classifier and Co-Training classifier. The experimental results show that ICT obtains the highest performance and the heading feature is considerably succeed in helping classifiers to build the correct model used in the Web page categorization task.


Title:

COMPUTER AUGMENTED COMMUNICATION IN COOPERATIVE GROUPS

Author(s):

Jean-Philippe Kotowicz

Abstract:

Companies are plunged into an unstable and internationalised environment. This environment evolves very fast technologically and the companies have to adapt themselves to it. The methods and tools of work organization can benefit from new technologies of communication to return these more effective adaptations. We think that information and cooperation mechanisms are going to move massively from a structured information system towards a communication system without any a priori structure. A new type of software will be then necessary to disambiguate, to facilitate, to structure and to allow complex searches in the exchanges arising  among the actors (human beings and software agents) of a cooperative sociotechnical system. We thus propose a system of communication mediation and of memories companies management, based on a multi-agent architecture. This architecture allows a use adapted to the "professional" activities of tool users associated to the various levels of language treatment.


Title:

RELATIONSHIPS BETWEEN THE DECISION SUPPORT SYSTEM SUBSPECIALTIES AND ARTIFICIAL INTELLIGENCE

Author(s):

Sean Eom

Abstract:

This is a comprehensive study, that, by means of an empirical assessment of the DSS literature, systematically identifies the DSS reference disciplines and traces how concepts and findings by researchers in the contributing disciplines have been picked up by DSS researchers to be applied, extended, and refined in the development of DSS research subspecialties. Cluster analysis was employed to an author cocitation frequency matrix derived from a comprehensive database of the DSS literature over the period of 1970

through 1993. Twelve clusters were uncovered consisting of six major areas of DSS research (group DSS, foundations, model management, user interfaces, implementation, and multiple criteria DSS) and six contributing disciplines (multiple criteria decision making, cognitive science, organization science, artificial intelligence, group decision making, and systems science). This study concludes that artificial intelligence has made important contributions to the development of foundational concepts, model management, and multiple criteria decision support systems.


Title:

CASE-BASED DECISION SUPPORT SYSTEMS

Author(s):

Abdel-Badeeh M. Salem and Nadia Baeshen

Abstract:

Information systems (IS) development methodologies are aimed at improving the management and control of development process, structuring it, reducing its complexity, and standardising both the process and resulting product. Many of IS development methodologies have been developed over the years, some from practice and some from theory. Recently artificial intelligence researchers have begun to investigate the usage of the case-based reasoning (CBR) methodology in improving human decision making. CBR means reasoning from experiences or "old cases" in an effort to solve problems, critique solutions, and explain anomalous situations. This paper will explore what CBR methodology involves and examine its processes and knowledge sources. These issues concerned with representing, indexing, organizing past cases, retrieving and modifying old cases, and assimilating new ones. Moreover, the paper discusses the potential role of the CBR methodology in the organizational knowledge management approach, and in the lessons learned information systems.


Title:

IMPROVEMENTS IN THE DECISION MAKING IN SOFTWARE PROJECTS

Author(s):

I. Ramos Román, J. Riquelme Santos and J. Aroba Páez

Abstract:

The Simulators of Software Development Projects based on dynamic models have supposed a significant advance in front of the traditional techniques