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dc.contributor.authorRichardson, W. Ryanen_US
dc.date.accessioned2014-03-14T20:13:41Z
dc.date.available2014-03-14T20:13:41Z
dc.date.issued2007-06-06en_US
dc.identifier.otheretd-07022007-184525en_US
dc.identifier.urihttp://hdl.handle.net/10919/28191
dc.description.abstractConcept maps, introduced by Novak, aid learnersâ understanding. I hypothesize that concept maps also can function as a summary of large documents, e.g., electronic theses and dissertations (ETDs). I have built a system that automatically generates concept maps from English-language ETDs in the computing field. The system also will provide Spanish translations of these concept maps for native Spanish speakers. Using machine translation techniques, my approach leads to concept maps that could allow researchers to discover pertinent dissertations in languages they cannot read, helping them to decide if they want a potentially relevant dissertation translated. I am using a state-of-the-art natural language processing system, called Relex, to extract noun phrases and noun-verb-noun relations from ETDs, and then produce concept maps automatically. I also have incorporated information from the table of contents of ETDs to create novel styles of concept maps. I have conducted five user studies, to evaluate user perceptions about these different map styles. I am using several methods to translate node and link text in concept maps from English to Spanish. Nodes labeled with single words from a given technical area can be translated using wordlists, but phrases in specific technical fields can be difficult to translate. Thus I have amassed a collection of about 580 Spanish-language ETDs from Scirus and two Mexican universities and I am using this corpus to mine phrase translations that I could not find otherwise. The usefulness of the automatically-generated and translated concept maps has been assessed in an experiment at Universidad de las Americas (UDLA) in Puebla, Mexico. This experiment demonstrated that concept maps can augment abstracts (translated using a standard machine translation package) in helping Spanish speaking users find ETDs of interest.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartRichardson_Appendix_VI_VII.pdfen_US
dc.relation.haspartRichardson_Appendix_III.pdfen_US
dc.relation.haspartRichardson_Appendix_IV.pdfen_US
dc.relation.haspartRichardson_etd.pdfen_US
dc.relation.haspartRichardson_Appendix_V.pdfen_US
dc.relation.haspartRichardson_Appendix_I.pdfen_US
dc.relation.haspartRichardson_Appendix_II.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectnamed entity extractionen_US
dc.subjectcomputing ontologiesen_US
dc.subjectconcept mappingen_US
dc.subjectcross-language information retrievalen_US
dc.titleUsing Concept Maps as a Tool for Cross-Language Relevance Determinationen_US
dc.typeDissertationen_US
dc.contributor.departmentComputer Scienceen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineComputer Scienceen_US
dc.contributor.committeechairFox, Edward Alanen_US
dc.contributor.committeememberRamakrishnan, Narenen_US
dc.contributor.committeememberTegarden, David P.en_US
dc.contributor.committeememberCline, Benjamin E.en_US
dc.contributor.committeememberPérez-Quiñones, Manuel A.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07022007-184525/en_US
dc.date.sdate2007-07-02en_US
dc.date.rdate2007-08-02
dc.date.adate2007-08-02en_US


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