Xiaolan Zhu, Susan Gauch, Lutz Gerhard, Nicholas Kral, Alexander Pretschner. Ontology-Based Web Site Mapping For Information Exploration. In Proceedings of the 8 Management (CIKM), 1999, pp. 188-194.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....just some of the prominent modeling and integration tools, will not be able to realize their full potential in the area of knowledge sharing and integration unless the tags and labels used have ontologybased semantics. As ontologies become more and more part of knowledge engineering and modeling [7], 8] 9] it is imperative to have precise rules for engineering ontlologies themselves. A similar problem also arises in managing changing contexts within reasoning processes which, as argued in [10] often requires dynamic ontology modifications. In order to be able to manipulate ontologies ....

Zhu, X., et al., Ontology-Based Web Site Mapping for Information Exploration, in Proceedings of the Eighth International Conference on Information Knowledge Management. 1999: Kansas City, MO USA. p. 188-194.

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Xiaolan Zhu, Susan Gauch, Lutz Gerhard, Nicholas Kral, Alexander Pretschner. Ontology-Based Web Site Mapping For Information Exploration. In Proceedings of the 8 Management (CIKM), 1999, pp. 188-194.

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Zhu, X., Gauch, S., Gerhard, L., Kral, N., and Pretschner, A., (1999). Ontology-Based Web Site Mapping for Information Exploration, SIGIR '99 (pending).

....In contrast, we build a browsing structure automatically by categorising documents into concepts in a pre defined ontology, or subject hierarchy. In one application, all the pages for a given Web site are categorised into concepts in a standard ontology to produce a site map for that site (Zhu, Gauch, Gerhard, Kral and Pretschner 1999). A site map represents the information space of a site by either relating a group of Web pages to a particular subject or depicting the links specified in the Web pages. To generate a subject based site map, one must describe a subject space, which typically has a hierarchical structure, and then ....

Zhu, X., S. Gauch, L. Gerhard, N. Kral and A. Pretschner (November 1999). Ontology-based web site mapping for information exploration. In Proceedings of the 8th International Conference on Information and Knowledge Management (CIKM '99), Kansas City, MO, pp. 188--194.

....browsing can usually be done only one site at a time. This paper demonstrates that it is possible to use a user s personal concepts to navigate the Web. This system is built by using the characterizations for a particular site created by the Ontology Based Informing Web Agent Navigation (OBIWAN) [4] system and mapping from them to the user s personal ontologies. OBIWAN will classify the Web pages of a site using a reference ontology based on the ontology used by Lycos [5] Over a period of time, a user will amass a collection of Web pages that he or she will then arrange into a personal ....

....can collect documents and arrange them to form an ontology. During the mapping phase, all pages that are associated with one of the personal concepts are joined and treated as one superdocument. This superdocument is then compared with the superdocuments for each concept in the OBIWAN ontology [4] to identify the best matches. Then, we try to map each node in the OBIWAN ontology to a node in the personal ontology. Finally, the system provides a browsing ability to display an OBIWAN site using the personal ontology. 3. RELATED WORK The related work is presented in three basic categories: ....

[Article contains additional citation context not shown here]

Zhu, X., Gauch, S., Gerhard, L., Kral, N. and Pretschner, A. Ontology-Based Web Site Mapping for Information Exploration, Proc. Of the Eighth International Conference on Information and Knowledge Management (CIKM '99), Kansas City, MO, November 1999, 188-194.

....browsing can usually be done only one site at a time. This paper demonstrates that it is possible to use a user s personal concepts to navigate the Web. This system is built by using the characterizations for a particular site created by the Ontology Based Informing Web Agent Navigation (OBIWAN ) [4] system and mapping from them to the user s personal ontologies. OBIWAN will classify the Web pages of site using a reference ontology based on the ontology used by Lycos [5] Over a period of time, a user will amass a collection of Web pages that he or she will then arrange into a personal ....

....can collect documents and arrange them to form an ontology. During the mapping phase, all pages that are associated with one of the personal concepts are joined and treated as one superdocument. This superdocument is then compared with the superdocuments for each concept in the OBIWAN ontology [4] to identify the best matches. Then, we try to map each node in the OBIWAN ontology can be mapped to a node in the personal ontology. Finally, the system provides a browsing ability to display an OBIWAN site using the personal ontology. 3. Related Work The related work is presented in three ....

[Article contains additional citation context not shown here]

Zhu, X., Gauch, S., Gerhard, L., Kral, N. and Pretschner, A. Ontology-Based Web Site Mapping for Information Exploration, Proc. Of the Eighth International Conference on Information and Knowledge Management (CIKM '99), Kansas City, MO, November 1999, 188-194.

....In contrast, we build a browsing structure automatically by categorizing documents into concepts in a pre de ned ontology, or subject hierarchy. In one application, all the pages for a given Web site are categorized into concepts in a standard ontology to produce a site map for that site (Zhu, Gauch, Gerhard, Kral and Pretschner 1999). A site map represents the information space of a site by either relating a group of Web pages to a particular subject or depicting the links speci ed in the Web pages. To generate a subject based site map, one must describe a subject space, which typically has a hierarchical structure, and then ....

Zhu, X., S. Gauch, L. Gerhard, N. Kral and A. Pretschner (November 1999). Ontology-based web site mapping for information exploration. In Proc of the 8th International Conference on Information and Knowledge Management (CIKM '99), Kansas City, MO, pp. 188-194.

....for medicine related issues: http: www.ohsu.edu clinicweb wwwvl all.html 12 The discussion in [42] compares Bayesian classi ers, Nearest Neighbors, PEBLS, Decision Trees, tf idf, and Neural Nets. 6] focuses on probabilistic user models. Text Learning techniques in this context are discussed in [31, 62]. 13 A similar observation is made in ProFilter [8] 14 www.newslinx.com 2.2 Filtering and Rating 14 pro le, resulting in a personalized presentation of news. It is thus a recommendation service. Pro le representation: The system stores documents as weighted keyword vectors and clusters ....

X. Zhu, S. Gauch, L. Gerhard, N. Kral, and A. Pretschner. Ontology based web site mapping for information exploration. In REFERENCES 31 Proc. 8th Intl. Conf. on Information and Knowledge Management (CIKM'99), pages 188-194, Kansas City, MO, USA, November 1999. http://www.ittc.ukans.edu/obiwan/publications/papers/ CIKM.html.

....this system is necessary. This paper shows how the profiles can be used to achieve search performance improvements. The increases in performance are modest, but they are noticeable, and they are a first step. This work has been carried out as part of the OBIWAN project (www.ittc.ukans.edu obiwan, [30]) at the University of Kansas. The goal of OBIWAN is to investigate a novel content based approach to distributed information retrieval. Websites are clustered into regions. Examples for clustering criteria include but are not restricted to content, geographic location, and association with a ....

....is calculated. This page vector is compared with the keyword vectors associated with every node to calculate similarities. The nodes with the top matching vectors are assumed to be most related to the content of the surfed page. The accuracy of this text categorization algorithm was validated in [30]. 4. User Profiles User profiles store approximations of the interests of a given user. The proposed generation of user profiles differs from the majority of other approaches in that the profiles are 1. hierarchically structured, and not just a list of keywords, 2. generated automatically, ....

X. Zhu, S. Gauch, L. Gerhard, N. Kral, and A. Pretschner. Ontology based web site mapping for information exploration. In Proc. 8th Intl. Conf. on Information and Knowledge Management (CIKM'99), to appear, Kansas City, MO, USA, November 1999. http://www.ittc.ukans.edu/obiwan/publications/papers/ CIKM.html. 8

....case, the path from the root (the WWW Virtual Library, www.vlib.org) is: Science Earth Science Forestry Soils and Substrates Soil profiles of Canada Chernozemic order Orthic Dark Gray Chernozemic Soil. 1.1. BACKGROUND 13 OBIWAN s (Ontology Based Informing Web Agent Navigation 4 [59]) approach is to distribute the various information sources. The idea is similar to Web rings 5 [22] Websites are clustered into regions. The clustering criterion may be geographical location (e.g. all websites in Kansas) content (e.g. all sites related to Canadian soil) specific quality ....

....(nodes consisting of labels and their content in form of weighted keyword vectors) Each webpage for a specific site is spidered, and its tf Deltaidf weights are calculated. The webpage vector is then compared with the ontology node vectors to locate the top matching node(s) or categories. [59] contains a detailed discussion of the algorithm as well as a comparison with other classification approaches. The characterization process adds the similarity weights for the top nodes 1.1. BACKGROUND 15 across all pages for a specific website. This yields a weighted ontology that relates nodes ....

[Article contains additional citation context not shown here]

X. Zhu, S. Gauch, L. Gerhard, N. Kral, and A. Pretschner. Ontology based web site mapping for information exploration, 1999. Submitted to CIKM'99; http://www.ittc.ukans.edu/obiwan/publications/SIGIR99.html.

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Zhu, X., Gauch, S., Gerhard, L., Kral,N., and Pretschner, A. OntologyBased Web Site Mapping for Information Exploration. Proceedings of the Eighth International Conference on Information Knowledge Management, Kansas City, MO USA, p. 188-194, 1999.

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X. Zhu, S. Gauch, N. Kral, and A. Pretschner, "Ontology-Based Web Site Mapping for Information Exploration," in CIKM'99 Conference, 1999.

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Xiaolan Zhu, Susan Gauch, Lutz Gerhard, Nicholas Kral, and Alexander Pretschner. Ontology-based web site mapping for information exploration. In CIKM '99. Proceedings of the Eighth International Conference on Knowledge and Information Management, pages 188-194. ACM,

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