By Topic

Web Congress, 2003. Proceedings. First Latin American

Date 10-12 Nov. 2003

Filter Results

Displaying Results 1 - 25 of 38
  • Finding buying guides with a Web carnivore

    Publication Year: 2003, Page(s):84 - 92
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (303 KB) | HTML iconHTML

    Research on buying behavior indicates that buying guides perform an important role in the overall buying process. However, while the Web contains many buying guides, finding those guides is difficult to impossible for the average consumer. Web search engines typically index many buying guides on many topics, but simple queries do not often return these results. Given this, we built a Web carnivore... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the evolution of clusters of near-duplicate Web pages

    Publication Year: 2003, Page(s):37 - 45
    Cited by:  Papers (21)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB) | HTML iconHTML

    We expand on a 1997 study of the amount and distribution of near-duplicate pages on the World Wide Web. We downloaded a set of 150 million Web pages on a weekly basis over the span of 11 weeks. We then determined which of these pages are near-duplicates of one another, and tracked how clusters of near-duplicate documents evolved over time. We found that 29.2% of all Web pages are very similar to o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the image content of the Chilean Web

    Publication Year: 2003, Page(s):72 - 83
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB) | HTML iconHTML

    We perform a study of the image contents of the Chilean Web (.cl domain) using automatic feature extraction, content-based analysis and face detection algorithms. In an automated process we examine all .cl Websites and download a large number of the images available (approx. 83,000). Then we extract several visual features (color, texture, shape, etc.) and we perform face detection using novel alg... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Web accessibility, mobility and findability

    Publication Year: 2003, Page(s):239 - 240
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB) | HTML iconHTML

    This paper addresses the issues of accessibility, mobility and findability as appropriate to a discussion of Web site or Web page interface usability. The goal of this paper is to emphasize the importance of these factors while providing attendees with sufficient vocabulary and conceptual knowledge to make appropriate design decisions. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • XML retrieval

    Publication Year: 2003, Page(s): 234
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (161 KB) | HTML iconHTML

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Storing RDF as a graph

    Publication Year: 2003, Page(s):27 - 36
    Cited by:  Papers (11)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (290 KB) | HTML iconHTML

    RDF is the first W3C standard for enriching information resources of the Web with detailed meta data. The semantics of RDF data is defined using a RDF schema. The most expressive language for querying RDF is RQL, which enables querying of semantics. In order to support RQL, a RDF storage system has to map the RDF graph model onto its storage structure. Several storage systems for RDF data have bee... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Using association rules to discover search engines related queries

    Publication Year: 2003, Page(s):66 - 71
    Cited by:  Papers (14)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (266 KB) | HTML iconHTML

    We present a method for automatic generate suggestions of related queries submitted to Web search engines. The method extracts information from the log of past submitted queries to search engines using algorithms for mining association rules. Experimental results were performed on a log containing more than 2.3 million queries submitted to a commercial searching engine giving correct suggestions i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Network and web services security concepts using Java

    Publication Year: 2003, Page(s): 238
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (154 KB) | HTML iconHTML

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Cooperative crawling

    Publication Year: 2003, Page(s):209 - 211
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (193 KB) | HTML iconHTML

    Web crawler design presents many different challenges: architecture, strategies, performance and more. One of the most important research topics concerns improving the selection of "interesting" Web pages (for the user), according to importance metrics. Another relevant point is content freshness, i.e. maintaining freshness and consistency of temporary stored copies. For this, the crawler periodic... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Clustering the Chilean Web

    Publication Year: 2003, Page(s):229 - 231
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (267 KB) | HTML iconHTML

    We perform a clustering of the Chilean Web graph using a local fitness measure, optimized by simulated annealing, and compare the obtained cluster distribution to that of two models of the Web graph. Information on Web clusters can be employed both to validate generation models and to study the properties of the graph. Clusters can also be used in semantics-based grouping of Websites or pages e.g.... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Policy and state based secure wrapper and its application to mobile agents

    Publication Year: 2003, Page(s):14 - 26
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (367 KB) | HTML iconHTML

    Execution process in modern Web applications is usually represented as a partially ordered sequence of basic actions issued by a client (login, buy, exit, etc.; the login action usually precedes purchasing). Based on these actions, a finite automaton of fine-grained authorization checks, may be specified in a separate layer that is easily configurable for security needs of a particular application... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multi-tier architecture for Web search engines

    Publication Year: 2003, Page(s):132 - 143
    Cited by:  Papers (5)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (954 KB) | HTML iconHTML

    We describe a novel multitier architecture far a search engine. Based on observations from query log analysis as well as properties of a ranking formula, we derive a method to tier documents in a search engine. This allows for increased performance while keeping the order of the results returned, and hence relevance, almost "untouched". The architecture and method have been tested large scale on a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Syntactic similarity of Web documents

    Publication Year: 2003, Page(s):194 - 200
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (302 KB) | HTML iconHTML

    We present and compare two methods for evaluating the syntactic similarity between documents. The first method uses the Patricia tree, constructed from the original document, and the similarity is computed searching the text of each candidate document in the tree. The second method uses shingles concept to obtain the similarity measure for every document pairs, and each shingle from the original d... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Designing collaborative virtual environments based on real spaces to promote community interaction

    Publication Year: 2003, Page(s):58 - 65
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (375 KB) | HTML iconHTML

    A collaborative virtual environment (CVE) is a metaphor of a real environment, but it is not a copy of it. Members of a community may not know each other in real life. The design of CVE in which members are known and there is interaction in a real space is different to the traditional design of CVE. It should consider the real location of each resource, appropriated awareness and communication str... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Metadata in web information services and systems

    Publication Year: 2003, Page(s): 237
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (158 KB) | HTML iconHTML

    First Page of the Article
    View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • WISDNA: an information visualization paradigm for XML

    Publication Year: 2003, Page(s):205 - 208
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (367 KB) | HTML iconHTML

    We present WISDNA (Web information services DNA) as an information visualization paradigm for XML data from Web information services. We propose a visualization and navigational tool based on Context Lenses and MovieDNA to address the need to support exploratory navigation that seamlessly integrates querying with browsing. We present linear and hierarchical versions of WIDSNA. It is a dynamic visu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Structuring information on the Web from below: the case of educational organizations in Chile

    Publication Year: 2003, Page(s):216 - 218
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (202 KB) | HTML iconHTML

    We present an ongoing work to help populate the Web with metadata by structuring and integrating information of organizations at a small scale. This is a natural complement to big scale projects to build the semantic Web infrastructure. We show an implementation for Computer Science departments in Chile, and present current work on educational organizations generalizing previous experience. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Methodological aspects in designing Web-based collaborative systems

    Publication Year: 2003, Page(s):226 - 228
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (198 KB) | HTML iconHTML

    We present methodological aspects related with the development of Web-based collaboration systems in design and education. Collaboration is highlighted as the fundamental aspect in the development of this kind of systems; it consists in a constructive and social process that is modeled in terms of protocols, which capture key acts of conversations involved in team working. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Evolution of the Chilean Web structure composition

    Publication Year: 2003, Page(s):11 - 13
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (371 KB) | HTML iconHTML

    We present the evolution of the structure of the Chilean Web between 2000 and 2002. Our results show that although the Web grows as expected, also a significant part of it disappears. In addition, some components are much more stable than others. We also compare the expected life cycle of a Web site in the structure with the actual real data. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A utility-oriented hyperlink analysis model for the Web

    Publication Year: 2003, Page(s):123 - 131
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (828 KB) | HTML iconHTML

    The analysis of hyperlink structure on the Web has been employed for detecting high quality documents. Quality may correspond to the authority of a document, but could also correspond to its utility, that is how well it enables a user to browse its vicinity. We present a hyperlink analysis model, based on modelling the Web graph as an absorbing Markov chain, that can be employed for both authority... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Does home Internet use influence the academic performance of low-income children? findings from the HomeNetToo project

    Publication Year: 2003, Page(s):187 - 193
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (223 KB) | HTML iconHTML

    Research on the effects of home Internet use on children's academic performance is virtually nonexistent. Although parents believe that having the Internet at home is important to their children's success in school, evidence linking access to success is lacking. In the HomeNetToo project we automatically recorded the actual Internet use of 130 children (mean age=13) from low-income families for 16... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application modeling for the semantic Web

    Publication Year: 2003, Page(s):93 - 102
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB) | HTML iconHTML

    We present a method for the design and implementation of Web Applications for the semantic Web. Based on the "object oriented hypermedia design method" approach, we used ontology concepts to define an application conceptual model, extending the expressive power of the original method. The navigational model definitions use a query language capable of querying both schema and instances, enabling th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Conceptual-level log analysis for the evaluation of Web application quality

    Publication Year: 2003, Page(s):46 - 57
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB) | HTML iconHTML

    So far, conceptual modeling of Web applications has been used primarily in the upper part of the life cycle, as a driver for system analysis. Little attention has been put on exploiting the conceptual models developed during analysis for application evaluation, maintenance and evolution. We illustrates an approach for integrating the use of conceptual models in the lower part of the application li... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Website usability or the WWW as practice

    Publication Year: 2003, Page(s):235 - 236
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB) | HTML iconHTML

    Since the Web popularized computing technology by means of its usability it became a continuous effort and unique competence to ensure its persisting usability and value. The tutorial provides different perspectives from which to improve and evaluate the quality of Websites: the dynamics of projects and the continuants of usability in respect to functionality, content and design. Common evaluation... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Cooperation schemes between a Web server and a Web search engine

    Publication Year: 2003, Page(s):212 - 213
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB) | HTML iconHTML

    Search engines provide search results based on a large repository of pages downloaded by a Web crawler from several servers. To provide best results, this repository must be kept as fresh as possible, but this can be difficult due to the large volume of pages involved and to the fact that polling is the only method for detecting changes. We explore and compare several alternatives for keeping fres... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.