{"title":".Net approach to run-time component integration","authors":"A. Flores, I. G. D. Guzmán, Macario Polo","doi":"10.1109/LAWEB.2005.1","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.1","url":null,"abstract":"This work is related to the area of component-based software development. We intend to automate a component integration process as a support for run-time adjustments of applications, when the environment involves highly dynamic changes of requirements. This implies to evaluate components against a given set of requirements. We propose a framework for such process and consider related concepts like assessment and adaptation. Assessment is based on meta-data added to components, involving assertions, and usage protocols. Meta-data is evaluated with a technique based on abstract syntax trees. We also report on a prototype developed on the .Net technology to implement the proposed assessment and adaptation procedures which allowed us to gain understanding about the complexity and effectiveness of our model.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116062137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jairo Andrés Mojica, D. A. Rojas, Jonatan Gómez, F. González
{"title":"Page clustering using a distance based algorithm","authors":"Jairo Andrés Mojica, D. A. Rojas, Jonatan Gómez, F. González","doi":"10.1109/LAWEB.2005.27","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.27","url":null,"abstract":"This paper presents an application of a clustering algorithm based on gravitational forces to the problem of Web page clustering in a dynamic environment. The proposed algorithm uses a modification of the gravitational algorithm proposed by Gomez et al. but using only the distance measures (a notion of space is not required). This approach is useful when similarities (and/or then distances) between pages can be defined and compute quickly, but the definition of a space is computationally expensive. Experiments with data representing real URL's and sessions are performed, and a comparison with the incremental connected components algorithm, which has been previously used to solve this problem, is done.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116083853","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Contextual ontologies for the semantic Web - an enabling technology","authors":"M. L. Caliusco, M. Galli, O. Chiotti","doi":"10.1109/LAWEB.2005.12","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.12","url":null,"abstract":"To realize the goals of the semantic Web, there is a need of working on approaches focused on the machine processing semantics and approaches to systematically define conceptual models about data semantics. Ontologies are a primary means to deploy the semantic Web vision, but managing the context-dependent semantics remains an open problem. In this paper we discuss the role of contexts on the semantic Web and, present a contextual ontology modeling language called C-OML.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116245259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Interpretations between RDF and the logical data model","authors":"Sergio Muñoz, Claudio Gutiérrez","doi":"10.1109/LAWEB.2005.20","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.20","url":null,"abstract":"In 1984 Kuper and Vardi presented a logical data model (LDM) which generalizes the relational, hierarchical and networks database models. In this model, a database is a schema represented by a directed multigraph whose leaves represent data. In 1998, the W3C proposed the resource description framework (RDF) as a data model for representing the network of metadata on the Web. In this short paper we show that LDM and RDF are mutually interpretable in each other, presenting the result for RDF without vocabulary from RDFS.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127690060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. A. M. Nieto, J. A. Sánchez, Yulia Ostróvskaya, N. Brisaboa
{"title":"OntoSIR: An OAI service for multi-collection document retrieval based on ontologies of metadata records","authors":"M. A. M. Nieto, J. A. Sánchez, Yulia Ostróvskaya, N. Brisaboa","doi":"10.1109/LAWEB.2005.24","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.24","url":null,"abstract":"This paper describes the design and implementation of OntoSIR, an asynchronous service for document retrieval from multiple collections. Our approach builds hierarchical structures to support retrieval tasks based on harvesting of metadata records, document clustering techniques and information retrieval methods. This service provides an alternative searching mechanism for the Open Archives Initiative community.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"124 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132373793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A model-driven reengineering approach to Web site personalization","authors":"Adriana Martín, A. Cechich","doi":"10.1109/LAWEB.2005.5","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.5","url":null,"abstract":"Currently, Web-based applications without personalization and developed with \"ad hoc\" practices are requiring substantial evolution. Particularly, e-commerce applications are implicitly bound to a fully customisable fashion, attending individual users or group of users needs. Hence, personalization is a leader performance feature of today's Web applications to capture users' attention. In this paper, we introduce a model-driven reengineering approach based on the object-oriented hypermedia design method (OOHDM) to personalize existent Web applications. We illustrate the proposal through a real non-personalized case corresponding to an international oil corporation.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122881372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"How to \"Webby-ize\" your Web site - factors in award-winning design","authors":"B. White","doi":"10.1109/LAWEB.2005.17","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.17","url":null,"abstract":"The Webby Awards/spl reg/ are the leading international awards honoring excellence in Web design, functionality and creativity (http://www.webbyawards.com). More than just a popularity contest, the Webbys recognize outstanding achievement in content, structure and navigation, visual design, functionality, interactivity, and overall experience. The International Academy of Digital Arts and Sciences (IADAS), the organization that oversees the award process, has given the Webby judges a framework for evaluating a Web site that is comprehensive and independent of the personal preference issues that are ordinarily associated with Web site evaluation.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121645216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Pallis, A. Vakali, K. Stamos, Antonis Sidiropoulos, Dimitrios Katsaros, Y. Manolopoulos
{"title":"A latency-based object placement approach in content distribution networks","authors":"G. Pallis, A. Vakali, K. Stamos, Antonis Sidiropoulos, Dimitrios Katsaros, Y. Manolopoulos","doi":"10.1109/LAWEB.2005.3","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.3","url":null,"abstract":"Content distribution networks (CDNs) are increasingly being used to disseminate data in today's Internet. The growing interest in CDNs is motivated by a common problem across disciplines: how does one reduce the load on the origin server and the traffic on the Internet, and ultimately improve response time to users? In this direction, crucial data management issues should be addressed. A very important issue is the optimal placement of the outsourced content to CDN's servers. Taking into account that this problem is NP complete, a heuristic method should be developed. All the approaches developed so far assume the existence of adequate popularity statistics. Such information though, is not always available, or it is extremely volatile, turning such methods problematic. This paper develops a network-adaptive, non-parameterized technique to place the outsourced content to CDN's servers, which requires no a-priori knowledge of request statistics. We place the outsourced objects to these servers with respect to the network latency that each object produces. Through a detailed simulation environment, using both real and synthetic data, we show that the proposed technique can yield up to 25% reduction in user-perceived latency, compared with other heuristic schemes which have knowledge of the content popularity.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"314 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124452176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Using the MetroWeb tool to improve usability quality of Web sites","authors":"Céline Mariage, J. Vanderdonckt, A. Chevalier","doi":"10.1109/LAWEB.2005.46","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.46","url":null,"abstract":"This work addresses the question of supporting Web designers in considering usability in their work in order to foster user-centered design of Web sites. With the MetroWeb tool that is described in this paper, designers can access usability guidelines contained in usability knowledge bases, and use them to design a particular Web site based on these usability guidelines. MetroWeb consists of a Java-based application helping usability experts to gather usability guidelines coming from different sources and to organize them in a structured way. It then provides designers with guidance in using these guidelines according to a semantic network of concepts structured around the notion of guideline, such as ergonomic criteria, development phase, bibliographic reference, type of Web site, type of Web page, etc. A first experiment was conducted with professional Web designers in order to evaluate their appreciation of the MetroWeb tool. They had to create two Web pages with or without the support of MetroWeb. The main results showed that designers using MetroWeb took into account more usability guidelines and made Web pages with less usability errors than designers without MetroWeb.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125843864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. A. Souza, C. Davis, Karla A. V. Borges, Tiago M. Delboni, Alberto H. F. Laender
{"title":"The role of gazetteers in geographic knowledge discovery on the Web","authors":"L. A. Souza, C. Davis, Karla A. V. Borges, Tiago M. Delboni, Alberto H. F. Laender","doi":"10.1109/LAWEB.2005.38","DOIUrl":"https://doi.org/10.1109/LAWEB.2005.38","url":null,"abstract":"The Web is a large source of geographic information. Many Web documents have one or more spatial references, such as place names, addresses, zip codes or phone numbers. These spatial references are usually found in a semistructured fashion, which allows humans to identify and assign a geographic meaning to documents. In this paper, we discuss the important role that gazetteers, which are spatial catalogues of place names, can play in automating this process, and introduce the Locus gazetteer. Locus has been designed to hold not only place names for entities such as cities and rivers, but also to handle intra-urban place names, such as street names, urban landmarks, and postal addresses, along with their spatial relationships, through an ontology of places. We demonstrate that ontologically-enhanced gazetteers, such as Locus, are very useful for discovering the geographic context present on Web pages, and are often used in many other applications, such as in address geocoding for geographic information systems. To efficiently accomplish these tasks, the gazetteer must have a large database of spatial references; however, such a database is hard to obtain in emergent countries such as Brazil, in which available official geographic databases are limited and not well updated. As a way to tackle this problem, we describe a semi-automatic method used to populate the Locus gazetteer with geographic content extracted directly from the Web. To evaluate our work, an experiment was conducted, focusing on testing the Locus gazetteer data quality and comprehensiveness.","PeriodicalId":286939,"journal":{"name":"Third Latin American Web Congress (LA-WEB'2005)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126619364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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