Proceedings. Tenth International Workshop on Database and Expert Systems Applications. DEXA 99

3-3 Sept. 1999

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  • Proceedings. Tenth International Workshop on Database and Expert Systems Applications. DEXA 99

    Publication Year: 1999
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    Freely Available from IEEE
  • Beyond current technology: the perspective of three RC GIS projects panel discussion

    Publication Year: 1999, Page(s): 510
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    Freely Available from IEEE
  • Electronic copyright management systems: requirements, players and technologies

    Publication Year: 1999, Page(s):896 - 898
    Cited by:  Papers (4)  |  Patents (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (26 KB)

    The large diffusion of multimedia products distributed through CD-ROMs (off-line) and the Internet (on-line) is raising many concerns regarding the preservation of authors' rights. On the other hand, these new publication methods appear to be very attractive for increasing business opportunities. The problem of electronic management of copyright has thus become very important and many projects are... View full abstract»

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  • Author index

    Publication Year: 1999, Page(s):933 - 937
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    Freely Available from IEEE
  • Document storage and retrieval in a neural database

    Publication Year: 1999, Page(s):598 - 602
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB)

    A database of the leech nervous system has been developed. The end users of the database will mainly be neuroscientists, especially those studying the invertebrate nervous system. It is mainly a document database, collecting papers on the leech nervous system, which is maintained in a largely automatic fashion. The database is composed of three subsystems: (1) an object oriented, relational databa... View full abstract»

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  • Indexing semi-structured documents for context-based information retrieval in a medical information system

    Publication Year: 1999, Page(s):593 - 597
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (44 KB)

    Most of the information retrieval models for documents are intended for SGML-like structured documents. In the context of medical informatics, the patient record document needs a looser structuration process as an a priori structure can hardly be defined. Thus we first propose an authoring tool that allows us to annotate embedded information, i.e. to give them a context, with qualifiers that are s... View full abstract»

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  • “STRETCH”: a system for document storage and retrieval by content

    Publication Year: 1999, Page(s):588 - 592
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (44 KB)

    A system for storing and retrieving imaged multimedia documents by content is described. This system is being developed within the Esprit project STRETCH (STorage and RETrieval by Content of imaged documents). The core of STRETCH system is a powerful archiving and retrieval engine, based on a structured document representation and capable of activating appropriate methods to characterise and autom... View full abstract»

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  • Shifts in detail through temporal zooming

    Publication Year: 1999, Page(s):487 - 491
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (40 KB)

    Spatio-temporal knowledge representation often requires shifting from one level of detail to another so that users can carry out a desired task. Geographic information systems typically treat such alterations in detail with respect to the geometric properties of objects. We extend the theories based on geometrical considerations only to an approach that focuses on shifts between levels of temporal... View full abstract»

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  • A study on utilizing OCR technology in building text database

    Publication Year: 1999, Page(s):582 - 586
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (48 KB)

    Optical character recognition (OCR) might be the most plausible method in building databases from printed documents. The paper describes the points to be considered when one selects an OCR system in order to build a database. Based on our experiments on four commercial OCR systems, we chose one that shows the highest recognition rate to build an OCR text database. The character recognition rate wa... View full abstract»

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  • Reasoning with enhanced temporal entity-relationship models

    Publication Year: 1999, Page(s):482 - 486
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (124 KB)

    Recent efforts in the Conceptual Modelling community have been devoted to properly capturing time-varying information, and several proposals of temporally enhanced entity-relationship (ER) exist. The work gives a logical formalisation of the various properties that characterise and extend different temporal ER models which are found in literature. The formalisation we propose is based on descripti... View full abstract»

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  • SIM-a system for semi-automatic indexing of multilingual documents

    Publication Year: 1999, Page(s):577 - 581
    Cited by:  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (48 KB)

    With the growing significance of digital libraries and the Internet, more and more electronic texts become accessible to a wide and geographically disperse public. This requires adequate tools to facilitate indexing, storage, and retrieval of documents written in different languages. We present a method for semi-automatic indexing of electronic documents and construction of a multilingual thesauru... View full abstract»

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  • Applying temporal databases to geographical data analysis

    Publication Year: 1999, Page(s):475 - 480
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (60 KB)

    This paper reports an experience in which a temporal database was used to analyze the results of a survey on human behaviors and displacements in a ski resort. This survey was part of a broader study about the use of the resort's infrastructure, based on the time-geography methodology. As such, the presented experience may be seen as an attempt to implement some concepts of the time-geography usin... View full abstract»

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  • A statistical refinement method for word shape token querying of document images

    Publication Year: 1999, Page(s):572 - 576
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (36 KB)

    Word Shape Tokens (WSTs) are tokens used to represent words based on the overall shape or contour of a word as it appears in printed text. A character shape code (CSC) mapping function is used to aggregate similarly shaped letters such as “g” and “y” into one single code to represent those letters. The rationale behind this is that it is far easier and more accurate to map ... View full abstract»

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  • Geo Viser. Geographic visualization of search engine results

    Publication Year: 1999, Page(s):269 - 273
    Cited by:  Patents (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    Successful navigation of the web for relevant information is facilitated by keyword and subject based search tools. To the best of our knowledge, most tools which achieve this goal are not designed to find the geographic location of information sources. In many instances such information could prove to be extremely useful to answer queries with certain geo-spatial elements. The main contribution o... View full abstract»

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  • Similarity search through fuzzy relational algebra

    Publication Year: 1999, Page(s):235 - 239
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (80 KB)

    Multimedia informations systems and Web-based applications such as search engines need to automatically extract and classify multimedia data such as images and textual documents. For this reason, very significant research has focused on similarity queries from the standpoint of the definition and creation of appropriate index structures. We provide a formal framework in which formulate powerful si... View full abstract»

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  • A Web-based evolutionary model for Internet data caching

    Publication Year: 1999, Page(s):650 - 654
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    Caching is a standard solution to the problem of insufficient bandwidth caused by the rapid increase of information circulation across the Internet. Cache consistency mechanisms are a crucial component of each cache scheme influencing the cache usefulness and reliability. The paper presents a model for optimizing Internet cache content by the use of a genetic algorithm and examines the model by tr... View full abstract»

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  • Document comparison with a weighted topic hierarchy

    Publication Year: 1999, Page(s):566 - 570
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    A method of document comparison based on a hierarchical dictionary of topics (concepts) is described. The hierarchical links in the dictionary are supplied with the weights that are used for detecting the main topics of a document and for determining the similarity between two documents. The method allows for the comparison of documents that do not share any words literally but do share concepts, ... View full abstract»

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  • A lineage metadata model for the temporal management of a cadastre application

    Publication Year: 1999, Page(s):466 - 474
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    Nowadays one of the most successful applications of GIS is the management of a land-use cadastre. A lot of corporate GIS databases are in development, they support the legal management and distribution of cadastral maps. However, the management of the propagation of geographical updates toward relevant user databases is still a methodological and technical problem to address in the context of a co... View full abstract»

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  • A goal-driven approach to Web navigation modeling

    Publication Year: 1999, Page(s):739 - 743
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (44 KB)

    The growing size and complexity of Web sites amplify problems such as user disorientation and cognitive overload, which limit their effectiveness and usefulness. By adapting the Web applications content, structure, and interface to the goals and interests of the users, the effects of these problems could be reduced. We propose a goal-driven approach to Web application engineering. We believe that ... View full abstract»

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  • Visualization of WWW-search results

    Publication Year: 1999, Page(s):264 - 268
    Cited by:  Papers (10)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (132 KB)

    The idea of Information Visualization is to get insights into great amounts of abstract data. Especially document sets found by searching the World Wide Web are a special challenge. The paper gives a short overview on the variety of possible visualizations for this application area. The presented ideas are grouped by using the four phase framework of information seeking. Crucial factors for the su... View full abstract»

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  • Coordination of security levels for Internet architectures

    Publication Year: 1999, Page(s):837 - 841
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (84 KB)

    Internet systems provide a variety of ways for exchanging information, contain a large amount and variety of data, and have become quite complex, making them vulnerable to attacks from determined hackers. There are many products currently being used to stop these attacks but they suffer from a lack of completeness, only applying to one type of attack. Several mechanisms are needed for a comprehens... View full abstract»

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  • SIAM: an integrated intelligent system for retrieving, organising and managing on-line legal information

    Publication Year: 1999, Page(s):793 - 798
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (40 KB)

    Thanks to recent developments in informatic and telematic technologies, the documentary material needed for the legal theorist and operator to conduct their activities-in any sector of law and as concerns any related professional function-can now be retrieved for the most part by consulting the many legal archives online. These differ in structure and features and are available especially in the I... View full abstract»

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  • Retrieving distant objects using tree indices- an approach to exploratory databases

    Publication Year: 1999, Page(s):230 - 234
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    Developing content-based retrieval techniques for multimedia objects is an important research issue. So far, much attention has been paid to similarity search algorithms and indices. However, other types of interaction are also important to meet the demands in exploratory systems such as digital museums and online shops. In this paper, as an approach to exploratory databases, we study the problem ... View full abstract»

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  • Good business practice needs good communications-new generation chat software for real-time discussion

    Publication Year: 1999, Page(s):640 - 644
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB)

    Whilst the email and newsgroups have long been recognised as commercially useful tools, chatroom technology has generally been regarded as a somewhat frivolous application. Chatrooms however may serve a variety of useful commercial and educational as well as recreational purposes. Each context of use, however, has its own requirements. Consequently, there is a need for the design of generic softwa... View full abstract»

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  • Document analysis techniques for the infinite memory multifunction machine

    Publication Year: 1999, Page(s):561 - 565
    Cited by:  Papers (3)  |  Patents (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (32 KB)

    A system that saves a digital copy of every document that users copy, print, or fax, without asking the user, has recently been proposed. Referred to as the Infinite Memory Multifunction Machine (IM 3), this system solves most of the problem of lost documents. However, because of the indiscriminate way it captures data, it is important that users have easy-to-use retrieval tools. Two do... View full abstract»

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