Proceedings of the Fourth International Conference on Web Information Systems Engineering, 2003. WISE 2003.

10-12 Dec. 2003

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Displaying Results 1 - 25 of 53
  • Data stream query processing

    Publication Year: 2003
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (188 KB) | HTML iconHTML

    Stream data are also generated naturally by (message-based) Web services, in which loosely coupled systems interact by exchanging high volumes of business data (e.g., purchase orders, retail transactions) tagged in XML (the lingua franca of Web services), forming continuous XML data streams. A central aspect of Web services is the ability to efficiently operate on these XML data streams executing ... View full abstract»

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  • Conceptual modelling of Web applications, workflows and Web services

    Publication Year: 2003
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (175 KB) | HTML iconHTML

    Conceptual modelling has recently gained attention as a means for formalizing the development process of Web applications, opening the way to the benefits of software engineering also in the Web context. New applications demand the extension of hypertextual front-ends with workflow functionality and with the ability of interacting with remote Web services. This scenario poses new challenges to Web... View full abstract»

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  • D.I.C.E. and Co.In.S.: a data integration cache engine for a content integration system

    Publication Year: 2003, Page(s):339 - 342
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (293 KB) | HTML iconHTML

    Content integration of Web data sources is becoming increasingly important for the formation of the next generation information systems. A common performance bottleneck faced by all proposed solutions is the network overhead incurred when contacting the integrated e-sites. With this paper we contribute ongoing work on D.I.C.E. and Co.In.S.; a domain-independent content integration system and its d... View full abstract»

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  • Semantic web services: facts and fiction

    Publication Year: 2003, Page(s): 369
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (182 KB) | HTML iconHTML

    First Page of the Article
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  • DIS@DIS: a system for semantic data integration under integrity constraints

    Publication Year: 2003, Page(s):335 - 338
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB) | HTML iconHTML

    The recent developments of computer and telecommunication technology, such as the expansion of the Internet and the World Wide Web, have made available to users a huge number of information sources, generally autonomous, heterogeneous and widely distributed. As a consequence, information integration has emerged as a crucial issue in many application domains, e.g., distributed databases, cooperativ... View full abstract»

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  • ProxyTeller: a proxy placement tool for content delivery under performance constraints

    Publication Year: 2003, Page(s):62 - 71
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (343 KB) | HTML iconHTML

    The efficient delivery of Web content has been identified as a key issue of research for some time. Forward (or reverse) proxies, which are positioned along the request route from the users' browsers to the origin content servers, maintain a cache with copies of content from their origin servers. The strategic placement of proxies across the backbone ISP or the content delivery network can drastic... View full abstract»

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  • Web HorizoN: the design of a 3D GIS Web solution

    Publication Year: 2003, Page(s):363 - 366
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB) | HTML iconHTML

    HorizoN is a fully integrated geographical information solution that is able to reuse data from past and present independent systems, and fuse them in a single and highly adaptable product capable of various utilizations in civil protection, planning, monitoring and marketing projects. The development of such a system was focused in creating new software architecture to allow an unprecedented envi... View full abstract»

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  • Performance issues in integrating a capital market surveillance system using Web services

    Publication Year: 2003, Page(s):287 - 290
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (827 KB) | HTML iconHTML

    Internet-based technologies have opened new opportunities for conducting business within and across enterprises that were never possible a few years ago. This paper presents our experience in using Web services for prototyping a service-oriented architecture for capital market systems (CMSs). Our work exposes a world-class surveillance system's functionality into a number of Web services. Our work... View full abstract»

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  • Enabling data quality notification in cooperative information systems through a Web-service based architecture

    Publication Year: 2003, Page(s):329 - 332
    Cited by:  Papers (1)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB) | HTML iconHTML

    Cooperative information systems (CISs) are often characterized by a high degree of data replication; as an example, in an e-government scenario, the personal data of citizens are stored by almost all administrations. In such scenarios, organizations typically provide the same information with distinct quality levels and this enables providing users with data of the highest available quality. Furth... View full abstract»

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  • MMWA: a software sizing model for Web applications

    Publication Year: 2003, Page(s):53 - 61
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (415 KB) | HTML iconHTML

    Estimating time and costs is a crucial factor in application development projects and low error margins are a priority. In line with the very fast evolution of Internet technologies, all applications are quickly becoming Web applications, which are growing without a consolidated project methodology. Thus there is a clear need for an estimation model for these applications' development projects. Th... View full abstract»

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  • The HyperHotel application built over D.I.C.E. and Co.In.S

    Publication Year: 2003, Page(s):359 - 362
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    Content integration of Web data sources is becoming increasingly important for the next generation information systems. However, all proposed solutions are faced with the same performance bottleneck: the network overhead incurred when contacting the integrated e-sites. With this demo paper, we shall demonstrate the functionality of HyperHotel. HyperHotel is used for finding appropriate hotel rooms... View full abstract»

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  • Switching over to paper: a new Web channel

    Publication Year: 2003, Page(s):209 - 218
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2266 KB) | HTML iconHTML

    We present a general Web-based information infrastructure capable of supporting the rapid development of highly-interactive information environments that cater for widely varying requirements across application domains and all forms of fixed and mobile client devices. In particular, we describe how this infrastructure has been extended to support digitally augmented paper through a special transfo... View full abstract»

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  • Metadata-driven middleware for Web services

    Publication Year: 2003, Page(s):278 - 283
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB) | HTML iconHTML

    Service metadata plays a central role in service oriented architecture (SOA)s. Explicit service metadata makes possible the decoupling of applications and supports dynamic selection and binding. Moreover it extends the basic interoperability model beyond the implicit agreement to use a set of common protocols, making possible advanced collaboration models based on the dynamic discovery of partner ... View full abstract»

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  • Association rules mining for name entity recognition

    Publication Year: 2003, Page(s):325 - 328
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (222 KB) | HTML iconHTML

    We propose a new name entity class extraction method based on association rules. We evaluate and compare the performance of our method with the state of the art maximum entropy method. We show that our method consistently yields a higher precision at a competitive level of recall. This result makes our method particularly suitable for tasks whose requirements emphasize the quality rather than the ... View full abstract»

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  • On the role of query refinement in searching for information: the librarian agent query refinement process

    Publication Year: 2003, Page(s):41 - 50
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (290 KB) | HTML iconHTML

    In this paper we present an approach for the query refinement called librarian agent query refinement process, which simulates the role a human librarian plays in the searching for information resources in a library. The process consists of two phases: problem discovery, in which the potential problems (ambiguities) of the initial query are discovered and estimated and query refinement, which anal... View full abstract»

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  • From task-oriented to goal-oriented Web requirements analysis

    Publication Year: 2003, Page(s):166 - 175
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1094 KB) | HTML iconHTML

    Task analysis has been used traditionally in HCI and CSCW to define requirements for user interfaces, Web-based or otherwise. This paper argues that a shift of paradigm is needed in Web engineering from task-oriented to goal-oriented approaches for designing applications delivering a quality user experience and achieving the objectives of the stakeholders. Task models focus on fine-grained and pre... View full abstract»

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  • ServiceCom: a tool for service composition reuse and specialization

    Publication Year: 2003, Page(s):355 - 358
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (379 KB) | HTML iconHTML

    Web services are becoming the dominant paradigm for distributed computing and electronic business. This has raised the opportunity for service providers and application developers to create value added services by combining Web services. Several Web service composition solutions have been proposed, e.g. BPEL4WS. However, these approaches are either not flexible or too complicated as they lack prop... View full abstract»

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  • Ontology generation from tables

    Publication Year: 2003, Page(s):242 - 249
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB) | HTML iconHTML

    We often need to access and reorganize information available in multiple tables in diverse Web pages. To understand tables, we rely on acquired expertise, background information, and practice. Current computerized tools seldom consider the structure and content in the context of other tables with related information. This paper addresses the table processing issue by developing a new framework to ... View full abstract»

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  • Traversing the Web: mobility heuristics for visually impaired surfers

    Publication Year: 2003, Page(s):200 - 208
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (338 KB) | HTML iconHTML

    Movement, or mobility, is a key to the accessibility, design, and usability of many Web sites. While some peripheral mobility issues have been addressed few have centered on the mobility problems of visually impaired users. We use our past work to address these issues and derive mobility heuristics from mobility models, use these heuristics to place mobility objects within a Web page, and describe... View full abstract»

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  • Search types and context of use in the semantic Web

    Publication Year: 2003, Page(s):269 - 274
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (199 KB) | HTML iconHTML

    Current search engines do not process queries semantics. However, most of the times contexts of use embed ontologies that do provide meanings. The paper suggests that the capability to satisfy users' queries is at variance with the level of ontology complexity. When extracting information from simple ontologies, the search engines are able to satisfy easily queries because the ambiguity of interpr... View full abstract»

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  • Dynamic virtual storage grid for mobile Web access

    Publication Year: 2003, Page(s):321 - 324
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (265 KB) | HTML iconHTML

    Advancement in wireless infrastructure for data access through third generation wireless and wi-fi technologies makes it possible to use mobile devices for various activities and transactions involving Internet. Several proposals have been made to provide data nearer to user. In this paper, we propose multiple overlay networks to provide a network infrastructure to support quick and efficient mobi... View full abstract»

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  • A graphical environment to query XML data with XQuery

    Publication Year: 2003, Page(s):31 - 40
    Cited by:  Papers (3)  |  Patents (57)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB) | HTML iconHTML

    XQuery, the standard query language for XML, is increasingly popular among computer scientists with a SQL background, since queries in XQuery and SQL require comparable skills to be formulated. However, the number of these experts is limited, and the availability of easier XQuery "dialects" could be extremely valuable. With this motivation in mind, we designed XQBE, a dialect of XQuery inspired by... View full abstract»

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  • CodeX: an approach for debugging XSLT transformations

    Publication Year: 2003, Page(s):309 - 312
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (209 KB) | HTML iconHTML

    XML is now a dominant standard for storing and exchanging information. One very important activity is the transformation of XML documents into other formats, via the transformation language XSLT. XSLT provides a powerful way to perform document conversion and exchange, avoiding reliance on application specific solutions. However, XSLT is a complex language and the current level of support for debu... View full abstract»

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  • Service-oriented computing: concepts, characteristics and directions

    Publication Year: 2003, Page(s):3 - 12
    Cited by:  Papers (400)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (350 KB) | HTML iconHTML

    Service-oriented computing (SOC) is the computing paradigm that utilizes services as fundamental elements for developing applications/solutions. To build the service model, SOC relies on the service oriented architecture (SOA), which is a way of reorganizing software applications and infrastructure into a set of interacting services. However, the basic SOA does not address overarching concerns suc... View full abstract»

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  • Agent architectures to support collaborative processes

    Publication Year: 2003, Page(s):157 - 165
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (282 KB) | HTML iconHTML

    This paper proposes an approach to developing agents that can be reused in a number of collaborative applications. It particularly concerns those applications that evolve rapidly over time and need continual reconfiguration. This particularly applies to knowledge intensive processes in virtual environments, which requires quick reconfiguration to make then sustainable. It bases the agents architec... View full abstract»

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