12th International Workshop on Database and Expert Systems Applications

3-7 Sept. 2001

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  • DEXA 2001 [front matter]

    Publication Year: 2001, Page(s):i - xx
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  • A comparative analysis of web-based collaborative systems

    Publication Year: 2001, Page(s):496 - 500
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (520 KB) | HTML iconHTML

    E-collaboration and collaborative systems bring geographically dispersed teams together, supporting communication, coordination and cooperation. In this paper we review forty-four products and research prototypes that offer collaborative services. The findings of our survey provide a list of the basic collaboration services, such as non real-time discussions, email, whiteboard, real-time discussio... View full abstract»

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  • Dynamic multi-signatures for secure autonomous agents

    Publication Year: 2001, Page(s):587 - 591
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (483 KB) | HTML iconHTML

    Mobile agents are an appealing technology for distributed applications in open networks. A major problem is the asymmetric relation of mobile agents and their execution environment in matters of security. The security concerns are even greater in the case where agents are executed autonomously in multiple hosts, and in particular when the environment is hostile. The proposed solutions in the liter... View full abstract»

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  • On the design of copyright protection protocols for multimedia distribution using symmetric and public-key watermarking

    Publication Year: 2001, Page(s):815 - 819
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (534 KB) | HTML iconHTML

    The advent of the Web, electronic commerce and the creation of electronic distribution channels for multimedia content have brought new challenges regarding the protection of intellectual property. As it has become increasingly difficult to protect the distribution medium against copying, techniques for asserting the copyright on information have gained in importance. We review the requirements of... View full abstract»

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  • Author index

    Publication Year: 2001, Page(s):967 - 970
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    Freely Available from IEEE
  • Supporting mobile agent applications using wrappers

    Publication Year: 2001, Page(s):689 - 695
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (664 KB) | HTML iconHTML

    The TACOMA project has investigated software support for mobile agents. Several prototypes have been developed, with experiences in distributed applications directing the effort. The paper presents a mechanism that supports implementing agent applications by creating troops of agents using wrappers. This solution requires little extra support from the agent system, and may be used to construct app... View full abstract»

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  • Using Mobile Agents in telecommunications

    Publication Year: 2001, Page(s):685 - 688
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (336 KB) | HTML iconHTML

    This paper presents an overview of the usage of the Mobile Agents in telecommunications, The paper starts with a presentation of the mobile agent technology. Then, it will go through the different telecommunications areas where the mobile agent technology has been used. For each application areas, there will be presented both advantages and disadvantages that were brought by Mobile Agent Technolog... View full abstract»

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  • E-Vienna. Living situation based e-government and e-democracy

    Publication Year: 2001, Page(s):397 - 401
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (280 KB) | HTML iconHTML

    The introduction of e-government and e-democracy in Vienna-e-Vienna-is based on the concept of living situations. A virtual competence centre situated in the EDP department manages implementation. A first pilot application and a running CEU funded project highlight the results and give an outline about the possible changes View full abstract»

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  • Integrating mobile agents into off-the-shelf web servers: the M&M approach

    Publication Year: 2001, Page(s):677 - 681
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (376 KB) | HTML iconHTML

    The mobile agent paradigm provides a new approach for developing distributed systems. During the last two years, we have been working on a project that tries to overcome some of the limitations found in terms of programmability and usability of the mobile agent paradigm in real applications. In the M&M framework there are no agent platforms. Instead applications become agent-enabled by using s... View full abstract»

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  • Information technology improves most of the democratic voting processes

    Publication Year: 2001, Page(s):388 - 393
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (456 KB) | HTML iconHTML

    Voting is the basis of democratic systems. Information technology has offered significant advantages and facilities to improve the quality of many social interactions and economical activities within modern societies. But the potential of IT to help change the voting process has not yet been fulfilled The paper analyses the voting process and identifies how information technology may improve the q... View full abstract»

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  • An information concierge for the Web

    Publication Year: 2001, Page(s):672 - 676
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (440 KB) | HTML iconHTML

    WWW Information Collection, Collaging and Programming (WICCAP) system is a software system for the generation of logical views of web resources, and the extraction of desired information in the form of a structured document. It is designed to enable people to obtain information of interests in a simple and effective manner as well as to make information from the WWW accessible to applications so a... View full abstract»

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  • Mobile database procedures in MDBAS

    Publication Year: 2001, Page(s):559 - 563
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (448 KB) | HTML iconHTML

    MDBAS is a prototype of a multidatabase management system based on mobile agents. The system integrates a set of autonomous databases distributed over a network, enables users to create a global database scheme, and manages transparent distributed execution of user requests and procedures including distributed transactions. The paper highlights the issues related to mobile database procedures, esp... View full abstract»

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  • Towards XML metamodel patterns for XML data modeling

    Publication Year: 2001, Page(s):71 - 75
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (352 KB) | HTML iconHTML

    XML, as an emerging industrial standard markup language, is very suitable for representing the metamodel that contains data structure, data element, relationship, rules, etc. In this paper we present a pattern-oriented approach for building a metamodel and defining the basic elements of an XML metamodel pattern. We also introduce some pattern examples, such as the embedding container, the self-emb... View full abstract»

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  • Electronic government and software confederations

    Publication Year: 2001, Page(s):383 - 387
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (392 KB) | HTML iconHTML

    The state (public) information system (SIS) is the precondition of electronic government. A SIS should provide all the services of the information systems of various offices and enable access of citizens to data without any knowledge about the internal structure of the SIS. It is very difficult to achieve it. The reasons are political conditions, power interests of various groups and offices, lobb... View full abstract»

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  • A script language for generating Internet-bots

    Publication Year: 2001, Page(s):667 - 671
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (456 KB) | HTML iconHTML

    Many Internet information and service sources (such as search engines and online ordering) only provide a conventional Web-page interface instead of an application program interface or via XML. In order to automate their access, the current approach generally requires writing low-level programs in sending and receiving HTTP messages. The paper presents a novel approach to using a high-level script... View full abstract»

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  • An architecture for location dependent query processing

    Publication Year: 2001, Page(s):549 - 555
    Cited by:  Papers (11)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (624 KB) | HTML iconHTML

    As the mobility of people increases, anytime, anywhere computing has become a must. With the advances in wireless communications, the geographical position of the mobile user can be estimated accurately enough to be used to access data dependent on it. Location awareness then enables new kinds of services specific to localized information. While this provides great flexibility for the end user, it... View full abstract»

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  • Rating the interest of rules induced from data and within texts

    Publication Year: 2001, Page(s):265 - 269
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (360 KB) | HTML iconHTML

    Presents an application based on an evaluation of the interestingness of the rules induced from examples using inductive text mining (ITM). The better-known deductive text mining is called information extraction, and amounts to finding instances of a predefined pattern in a set of texts. ITM looks for unknown patterns or rules to discover inside a set of texts. We mainly discuss two of the problem... View full abstract»

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  • Towards grouping constructs for semistructured data

    Publication Year: 2001, Page(s):66 - 70
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (376 KB) | HTML iconHTML

    Markup languages for semistructured data like XML are of growing importance as a means for data exchange and storage. The authors propose an enhancement for the semistructured data model that allows us to express more semantics and to enhance query answering. A data model is proposed and the implications on pattern matching are investigated View full abstract»

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  • Limitations for interstate e-government and for interdisciplinary projects

    Publication Year: 2001, Page(s):377 - 382
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (496 KB) | HTML iconHTML

    We present a European R&D project on interstate e-government and we discuss the challenges of information exchange on the level of e-government services and on the level of project management View full abstract»

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  • Towards an axiomatic framework to support the design of holonic systems

    Publication Year: 2001, Page(s):654 - 659
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (712 KB) | HTML iconHTML

    The constant domination of customer requirements has forced survival industries to become more and more agile. As a response to this necessity, the Holonic Manufacturing System (HMS) project proposed the principles of a re-configurable system constructed from autonomous and cooperative elements. The desired degree of response to market needs can be achieved by exploring concepts from the holonic p... View full abstract»

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  • Rationales for holonic manufacturing systems in chemical process industries

    Publication Year: 2001, Page(s):616 - 620
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (472 KB) | HTML iconHTML

    Examines the rationale for applying so-called holonic manufacturing principles as a technological solution to a number of growing business concerns of chemical process industries. A requirements deployment process coupled with a vision for a "holonic process plant" is used to illustrate how a holonic approach might reform the conventional engineering and control design methods in chemical processe... View full abstract»

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  • A system for collaborative music composition over the web

    Publication Year: 2001, Page(s):537 - 542
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (464 KB) | HTML iconHTML

    In this paper the authors propose a new architecture and new features for collaborative music composition. These design principles have been applied, without any loss of generality, to a system that has already been extensively tested on-line for the last three years, and which has allowed composers from around the world to participate in the collective creation of two important theatrical scores.... View full abstract»

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  • Modeling parallel and distributed computing resources using structured metadata

    Publication Year: 2001, Page(s):95 - 99
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (488 KB) | HTML iconHTML

    Given a parallel or distributed database system, a sophisticated query optimizer requires information on the specific structure of the computing resource, the data distribution, data replication and interconnection bandwidths in order to optimally schedule computational subtasks. Such optimizations are of an even greater importance for next-generation OLAP engines, which attempt to substitute on-d... View full abstract»

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  • An infrastructure for rule-driven negotiating software agents

    Publication Year: 2001, Page(s):737 - 741
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (480 KB) | HTML iconHTML

    Most strategy-enabled automated negotiation platforms use hard-coded, predefined, and non-adaptive negotiation strategies. This is evidently insufficient in regard to the ambitions of automated negotiations research. In this paper, we introduce INSULA, an infrastructure for representing, managing, and exploring negotiation strategies that is versatile, easy to use, and that encompasses a wide spec... View full abstract»

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  • Partial probabilistic interpretations and general imaging

    Publication Year: 2001, Page(s):254 - 258
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (368 KB) | HTML iconHTML

    The author presents a partial propositional calculus together with a partial probabilistic interpretation and suggests that this framework is much more adequate for knowledge representation than two valued classical propositional logic. A sound and complete system is presented and an application to the probabilistic interpretation of conditional supporting general imaging is provided View full abstract»

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