2006 Fourth Latin American Web Congress

25-27 Oct. 2006

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  • Fourth Latin American Web Congress (LA-WEB'06) [Cover]

    Publication Year: 2006, Page(s): c1
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  • Fourth Latin American Web Congress (LA-WEB'06)-Title

    Publication Year: 2006, Page(s):i - iii
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  • Fourth Latin American Web Congress (LA-WEB'06)-Copyright

    Publication Year: 2006, Page(s): iv
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  • Fourth Latin American Web Congress (LA-WEB'06) - TOC

    Publication Year: 2006, Page(s):v - viii
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  • Preface

    Publication Year: 2006, Page(s): ix
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  • Program Committee

    Publication Year: 2006, Page(s): x
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  • Organizing Committee

    Publication Year: 2006, Page(s): xi
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  • Reviewers

    Publication Year: 2006, Page(s): xii
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  • Collaborative Play in World of Warcraft

    Publication Year: 2006, Page(s): 3
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (125 KB)

    Summary form only given. The author discusses play in World of Warcraft, a popular massively multiplayer online game. World of Warcraft enables self-organizing groups of strangers and friends to collaborate on short-term objectives. Such collaborations may reflect coming changes in globalized work in which we increasingly work with remote others we know little about. In game play, the glue that ke... View full abstract»

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  • Overview of Search Engine Spamming

    Publication Year: 2006, Page(s): 4
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (141 KB) | HTML iconHTML

    Summary form only given. Web spamming refers to actions intended to mislead search engines into ranking some pages higher than they deserve. The amount of Web spam has increased dramatically, leading to a degradation of search results. In this paper the author presents a taxonomy of spamming techniques, which he believes can help in developing appropriate countermeasures. He also describes some of... View full abstract»

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  • z9: An Alternative Approach to Collaborative Navigation

    Publication Year: 2006, Page(s):7 - 14
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (361 KB) | HTML iconHTML

    The search for relevant information on the Web is a personalized discovery process. In this process each person aggregates new information to the border of what he or she already knows. Finding relevant information is also related to the user history, being driven by his or her intentional selection of documents to access. This paper presents a collaborative navigation tool, called z9, whose main ... View full abstract»

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  • OWeB: A Framework for Offline Web Browsing

    Publication Year: 2006, Page(s):15 - 24
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (293 KB) | HTML iconHTML

    Internet browsing is highly dependent on the real-time network availability and speed. This becomes a significant constraint when browsing over slow and intermittent networks. In this paper, we describe a readily deployable system designed for Web browsing over slow, intermittent networks - OWeB, that is minimally dependent on the real-time network availability and requires no changes on the part ... View full abstract»

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  • Modeling and Composing Navigational Concerns in Web Applications. Requirements and Design Issues.

    Publication Year: 2006, Page(s):25 - 31
    Cited by:  Papers (7)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (294 KB) | HTML iconHTML

    Complex applications, in particular Web applications, deal with a myriad of different concerns and some of them affect several others. The result is that these crosscutting concerns are scattered throughout different software artifacts and tangled with other concerns. In this paper we present an approach for modeling and composing navigational concerns in Web applications. By showing how to build ... View full abstract»

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  • A first draft of a Model-driven Method for Designing Graphical User Interfaces of Rich Internet Applications

    Publication Year: 2006, Page(s):32 - 38
    Cited by:  Papers (19)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (218 KB) | HTML iconHTML

    The design and development of graphical user interfaces for rich Internet applications are well known difficult tasks with tools. The designers must be aware of the computing platform, the user's characteristics (education, social background, among others) and the environment within users must interact with the application. We present a method to design this type of user interfaces that is model-b... View full abstract»

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  • SPyRO: Simple Python Remote Objects

    Publication Year: 2006, Page(s):39 - 46
    Cited by:  Papers (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (141 KB) | HTML iconHTML

    Remote object management is a key element in distributed and collaborative information retrieval, peer-to-peer systems and agent oriented programming. In existing implementations the communication and parsing overhead represents a significant fraction of the overall latency time in information retrieval tasks. Furthermore, existing architectures are composed of several software layers with potenti... View full abstract»

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  • Reactivity-based Scheduling Approaches For Internet Services

    Publication Year: 2006, Page(s):47 - 58
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (196 KB) | HTML iconHTML

    Understanding the characteristics of Internet services workloads is a crucial step to improve the quality of service offered to Web users. One aspect that is usually neglected during a performance evaluation is the user reactivity, i.e., how the users react to variable server response time. This paper addresses the use of reactivity to improve the quality of service (QoS) of Internet services. We ... View full abstract»

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  • Ontology Solution for Communicating Heterogeneous Negotiation Agents in a Web-based Environment

    Publication Year: 2006, Page(s):59 - 66
    Cited by:  Papers (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (137 KB) | HTML iconHTML

    Traditional negotiation systems have been implemented using agent architectures, where agents communicate exchanging negotiation primitives generated by each system, based on particular language definitions implicitly encoded, giving different syntax and semantics to their messages. In this paper we address the problem of communicating heterogeneous negotiation agents in a Web-based environment, c... View full abstract»

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  • Construction, Implementation and Maintenance of Ontologies of Records

    Publication Year: 2006, Page(s):67 - 73
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (170 KB) | HTML iconHTML

    This paper describes structures which represent the organization of documents extracted from open archives initiative compliant data providers. We have called them "ontologies of records". They group similar documents by means of data mining techniques and document clustering algorithms. Ontology markup languages are used to implement them. We show an ontology of records constructed in a semi-auto... View full abstract»

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  • Semantic Contexts in the Internet

    Publication Year: 2006, Page(s):74 - 81
    Cited by:  Papers (6)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (216 KB) | HTML iconHTML

    In many Internet applications, such as Web searches, contexts are important because each search is done with a specific context in mind, and results outside that context are seen by the user as irrelevant. By measuring joint keyword occurrences in Web pages, around our notion of "semantic contexts" we propose an infrastructure for semantically characterizing contextual information in the Internet.... View full abstract»

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  • Recycling Course Web Pages for the Semantic Web

    Publication Year: 2006, Page(s):82 - 90
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (260 KB) | HTML iconHTML

    This paper describes an approach for the semi-automatic learning object metadata markup of course's Web pages and their posterior extraction into SCORM packages. This is identified as the first step to recycle course's Web pages with the full potential of the semantic Web. The key issue of this approach is to avoid as much as possible manual metadata markup. To achieve this goal, the process of au... View full abstract»

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  • A Model-based Awareness Approach for Synchronous Collaborative Sessions on the Web

    Publication Year: 2006, Page(s):91 - 100
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1190 KB) | HTML iconHTML

    Awareness describes the knowledge acquired by a member of a collaborative session about the activities of the other members of this session. This paper presents the main aspects of the development of an awareness tool based on an information-oriented coordination model for synchronous collaboration sessions. This tool is supported by an adaptive layered architecture which is based on collaborative... View full abstract»

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  • Describing Group Tasks in Multi-User Systems

    Publication Year: 2006, Page(s):101 - 104
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (218 KB) | HTML iconHTML

    Task modelling is especially important when dealing with collaborative systems in which the number of users and tasks increases and the last ones became much more complex due to their collaborative nature. In this paper we propose a metamodel to describe tasks and group task for multi-user systems in order to make a precise characterization of the different kind of tasks involved in these environm... View full abstract»

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  • Analysis of Open Technological Standards for Learning Objects

    Publication Year: 2006, Page(s):105 - 108
    Cited by:  Papers (4)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (108 KB) | HTML iconHTML

    There are many technological standards related with learning objects: some are general purpose and others are specialized in elearning. This paper presents an analysis of four open standards commonly related to learning objects: Dublin Core, ADL SCORM, IEEE LOM and IMS. The result of this comparison represented important decision making information in the context of the voice enhanced learning obj... View full abstract»

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  • What E-Grocery Customers really want: Personalised Personalisation

    Publication Year: 2006, Page(s):109 - 112
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (226 KB) | HTML iconHTML

    E-grocery is not as successful or as extensively used as other types of e-commerce. Why this is so is widely debated but there is, as yet, no consensus of opinion. One of the issues that may play a large role is personalisation. In order to determine users' personalisation preferences, we used a Web-based questionnaire to assess e-grocery attitudes and needs. This paper presents the results of the... View full abstract»

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  • Accessibility Implementation Planning for Large Governmental Websites: a Case Study

    Publication Year: 2006, Page(s):113 - 118
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (189 KB) | HTML iconHTML

    Since the end of 2004, when the law decree about accessibility for Brazilian governmental Web sites came into force, the federal agencies have been struggling to conform to the norms of law. Discussions about both evaluation and fixing of pages with access barriers are taking place on the mainstream, but little attention has been paid to a feature commonly found on governmental Web sites: the larg... View full abstract»

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