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Information Technology Interfaces, 2003. ITI 2003. Proceedings of the 25th International Conference on

Date 16-19 June 2003

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Displaying Results 1 - 25 of 109
  • Comparative studies of fed-batch fermentation processes for production of L-lysine and L-valine based on mathematical models

    Publication Year: 2003, Page(s):513 - 518
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (454 KB) | HTML iconHTML

    Fed-batch fermentations for production of L-lysine and L-valine are carried out using high producing strains. Based on the experimental data, comparative studies of both processes are done, applying different mathematical procedures as follows: preliminary data processing and calculation of different specific rates; development of nonlinear models of specific growth, specific utilization and speci... View full abstract»

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  • An enhanced a priori algorithm for mining multidimensional association rules

    Publication Year: 2003, Page(s):193 - 198
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (559 KB) | HTML iconHTML

    Two concepts from different research areas are brought together, namely functional dependencies which are a class of integrity constraints that have gained fundamental importance for relational database design and association rules which are a class of patterns, which has been studied rigorously in data mining. It is shown that functional dependencies may be used to logically infer new association... View full abstract»

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  • Object-oriented simulator of multi-agent system for temporally rich domains

    Publication Year: 2003, Page(s):397 - 402
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (668 KB) | HTML iconHTML

    An object-oriented implementation of a program simulator for a multiagent system (MAS) is described. The model of a MAS is hierarchical model, consisting of different levels, where each level contains clusters of agents. A paradigm of a blackboard is used for communication among agents, clusters, as well as levels. Petri nets with time tokens are used as a basic concept for this model. An example ... View full abstract»

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  • Qualitative data mining and its applications

    Publication Year: 2003, Page(s):3 - 8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (535 KB) | HTML iconHTML

    In machine learning from numerical data, usually the target concept is a numerical function that facilitates quantitative prediction. In contrast to this, we consider qualitative data mining which aims at finding qualitative patterns, or qualitative relationships in numerical data. We present one approach to qualitative data mining, in which the target concepts are expressed as qualitative decisio... View full abstract»

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  • Component-based software engineering - new challenges in software development

    Publication Year: 2003, Page(s):9 - 18
    Cited by:  Papers (16)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (870 KB) | HTML iconHTML

    The primary role of component-based software engineering is to address the development of systems as an assembly of parts (components), the development of parts as reusable entities, and the maintenance and upgrading of systems by customising and replacing such parts. This requires established methodologies and tool support covering the entire component and system lifecycle including technological... View full abstract»

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  • Zachman framework in teaching information systems

    Publication Year: 2003, Page(s):161 - 166
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (571 KB) | HTML iconHTML

    The Zachman framework for information systems architecture is a classification scheme for development and documenting an enterprise-wide information system. It is useful in teaching various topics on information systems, such as: information systems development as an engineering process, basic information systems components and design artefacts, system development life cycle and information system... View full abstract»

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  • Microsoft open system logon with opensource PKI

    Publication Year: 2003, Page(s):593 - 597
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (475 KB) | HTML iconHTML

    Open source software can create some problems related to costs and organization. We faced the issue of digital authentication in Microsoft operating systems, with reference to the certification authority open source. We have tried to solve this problem analysing the Windows requests and forcing them on the PKI configuration file. Finally, a user's interface allows the system administrator to opera... View full abstract»

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  • Solving timetable scheduling problem using genetic algorithms

    Publication Year: 2003, Page(s):519 - 524
    Cited by:  Papers (7)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (523 KB) | HTML iconHTML

    A genetic algorithm for solving a timetable scheduling problem is described. The algorithm was tested on small and large instances of the problem. Algorithm performance was significantly enhanced with modification of basic genetic operators. Intelligent operators restrain the creation of new conflicts in the individual and improve the overall algorithm 's behavior. View full abstract»

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  • Web content management system based on XML native database

    Publication Year: 2003, Page(s):457 - 462
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (501 KB) | HTML iconHTML

    We identify problems in complex Web application implementations. In more detail, we address the problem of content management and specific components of such a system. We also present our implementation of a Web content management system (WCMS), which is based on relational database and XML technologies. It also uses some rather new concepts and technologies like XForms and a native XML database. View full abstract»

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  • A knowledge-based advisory system model

    Publication Year: 2003, Page(s):113 - 118
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (583 KB) | HTML iconHTML

    We present the goals and the first results of the IKF-H EUREKA project. The main goal of the project is to analyse, design and implement a new intelligent knowledge warehousing environment, allowing for advanced knowledge management and business intelligence, targeted towards specific financial application domain. We describe a general architecture and a prototype application for the concise stora... View full abstract»

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  • Comparison of two generalized logistic regression models; a case study

    Publication Year: 2003, Page(s):199 - 204
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (498 KB) | HTML iconHTML

    Two generalized logistic regression models were compared on a set of observations describing persons with mental disabilities. The main variable of interest (willingness of the parents to incorporate their mentally handicapped offspring into on-farm activities) has three different values (no, undecided, yes). These values can be regarded as unordered (the variable having nominal measurement scale)... View full abstract»

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  • Extended rough fuzzy sets for Web search agent

    Publication Year: 2003, Page(s):403 - 407
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (440 KB) | HTML iconHTML

    We propose a new method to create an intelligent Web search agent based on combining rough sets and fuzzy sets. Firstly, we create user profiles which is the important part to approximate query and document. We also design categories of user interests by grouping key terms. We update and create new categories automatically from user feedback. Secondly, we use combined rough and fuzzy sets to refin... View full abstract»

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  • Handling engineering design experience

    Publication Year: 2003, Page(s):287 - 292
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (869 KB) | HTML iconHTML

    We present trials in handling of engineering design experience in industrial and academic communities. Advanced CAD/CAM and other computerized supporting tools are applied on different hardware platforms in a network environment, relating to shipbuilding. First, the ship construction process is briefly summarized with emphasis on current design methods and tools. Next, the handling of design exper... View full abstract»

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  • About aggregation of imprecise evidence in database

    Publication Year: 2003, Page(s):167 - 172
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (490 KB) | HTML iconHTML

    We present a data-driven approach to fuzzy modelling that provides the user with both accurate and transparent rule bases for her/his database. The method has two steps: data exploration by means of fuzzy clustering and fuzzy set aggregation by means of similarity analysis. View full abstract»

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  • Creating and employing on-line dynamic learning objects for an introductory programming module

    Publication Year: 2003, Page(s):261 - 266
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (515 KB) | HTML iconHTML

    We show how learning objects can be designed to promote a constructivist learning environment whilst maintaining flexibility for reuse and repurposing. These learning objects, which support an introductory Java programming module, are employed across two UK HE institutions that both use the same virtual learning environment (WebCT) to link to these objects, together with a graphic software library... View full abstract»

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  • Intellectual capital factors that impact of value creation

    Publication Year: 2003, Page(s):411 - 416
    Cited by:  Papers (4)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (532 KB) | HTML iconHTML

    Intellectual capital (IC) has emerged as the key driver of value creation in the knowledge economy. Value creation lies at the heart of an organisation's competitive strategy. Competitive advantage can be attributed not only to the ownership of difficult to replicate knowledge assets but also to the ability to integrate these knowledge assets and deploy them to create value. The relationship betwe... View full abstract»

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  • Information fusion meta-search interface for precise photo acquisition on the Web

    Publication Year: 2003, Page(s):375 - 381
    Cited by:  Patents (17)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (688 KB) | HTML iconHTML

    Nowadays most Web pages contain both text and images. Nevertheless, search engines index documents based on their disseminated content or their meta-tags only. Although many search engines offer image search, this service is based over textual information filtering and retrieval. Thus, in order to facilitate effective search for images on the Web, text analysis and image processing must work in co... View full abstract»

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  • Design of follow-up questions in Web surveys

    Publication Year: 2003, Page(s):295 - 299
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (381 KB) | HTML iconHTML

    We describe a qualitative study on how to design follow-up questions in self-administered computer-based surveys. Three different designs were examined: follow-up question on the next page, initially invisible on the same page, and initially greyed-out on the same page. The last design was definitely the worst and cannot be recommended. There are some indications that the second design might be pr... View full abstract»

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  • GPK: a Java based genetic programming kernel

    Publication Year: 2003, Page(s):681 - 686
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (563 KB) | HTML iconHTML

    A Java based genetic programming kernel (GPK) is described. Its main features are ease of use, portability, and robustness, which were achieved by strongly using the Java reflection mechanism. This unique characteristic of our GPK distinguishes it from other similar frameworks. GPK was successfully used in our research work as well in the teaching process. View full abstract»

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  • The impact of facial recognition systems on business practices within an operational setting

    Publication Year: 2003, Page(s):315 - 320
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (537 KB) | HTML iconHTML

    We concentrate on investigations designed to assess the impact of facial recognition systems (FRS) on human factors considerations and business practices within an operational setting. Following a brief introduction to FRS technology, modes of operation and the human factors influence on these systems, a description of the methodologies used are provided (including baseline interviews, process map... View full abstract»

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  • An electronic journal management system

    Publication Year: 2003, Page(s):231 - 236
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (469 KB) | HTML iconHTML

    A Web-based information system for management of scientific electronic journals is presented. Journal management requires exchange of information between many participants in the publishing process, including authors, reviewers, editors, and collectors. Each participant in the process plays a different role, and cooperates with other participants. The Web system is implemented using open source so... View full abstract»

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  • Simulation modeling in practice - towards e-government

    Publication Year: 2003, Page(s):601 - 606
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (518 KB) | HTML iconHTML

    We present the characteristics of business renovation efforts and readiness for electronic business (e-government) in Slovenia. It is clear that successful e-government implementation requires not only introduction of modern information technology, but also business renovation, business process reengineering and e-business strategy. The case of a business renovation project in one of the Slovene M... View full abstract»

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  • System of automated timetabling

    Publication Year: 2003, Page(s):495 - 500
    Cited by:  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (648 KB) | HTML iconHTML

    A construction of timetabling is considered to be a computationally hard problem. The problem lies not only in NP-completeness, but also in a number of complicated interactions between different users. We present a system of automated timetabling (SAT), as a proposition for a global look at timetabling. It describes four tools for managing timetable. The constraint programming (CP) techniques were... View full abstract»

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  • Effective requirement specification as a precondition for successful software development project

    Publication Year: 2003, Page(s):669 - 674
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (576 KB) | HTML iconHTML

    Software development is activity closely connected with requirements. To enable development of software systems that satisfies most of customer demands we propose methodologies for obtaining efficient requirement management infrastructure on software development project. We propose methodologies for requirement discovery and organization according to competence areas available on the project and i... View full abstract»

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  • Integration of heterogeneous scientific data using workflows - a case study in bioinformatics

    Publication Year: 2003, Page(s):25 - 28
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (451 KB) | HTML iconHTML

    The goal of the described project is to design, implement, evaluate and deploy a suite of tools and network-based services that reliably improve productivity of research scientists by providing proactive information technology based support for their problem solving workflows. In the first phase of the project we have focused on workflow support toolset that aids bioinformatics research workflows.... View full abstract»

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