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dc.contributor.authorRaghavan, Ananthen_US
dc.date.accessioned2014-03-14T20:37:29Z
dc.date.available2014-03-14T20:37:29Z
dc.date.issued2005-05-04en_US
dc.identifier.otheretd-05182005-114155en_US
dc.identifier.urihttp://hdl.handle.net/10919/32950
dc.description.abstractSchema mapping is a challenging problem. It has come to the fore in recent years; there are important applications like database schema integration and, more recently, digital library (DL) merging of heterogeneous data. With Schema Mapper we demonstrate a semi-automatic tool for schema integration that combines a novel visual interface with an algorithm-based recommendation engine. We use ETANA-DL, a digital library developed to support integration of data from Near Eastern archaeology sites, as we explore integrating new collections. Schemas are visualized as hyperbolic trees, thus allowing more schema nodes to be displayed at one time. Matches to selections are recommended to the user, which makes the mapping operation easier and faster. Once the user has completed the mapping operation, a wrapper (XSLT Style Sheet) is created automatically with the mappings which can be applied to transform source XML files into target XML files. Schema Mapper allows editing the target schema as part of the process of incremental enrichment of the target schema. This involves operations like adding a node as a child, renaming a node, and deleting a node. The changes to the target schema also can be logged to disk. Schema Mapper has been applied to integrate the Megiddo Collection successfully into the ETANA-DL Union Catalog. It also has been applied for data-level mapping, to ensure consistency of data representation to the users who access the information through services provided by the DL. Formative evaluation and a preliminary comparison with MapForce suggest that Schema Mapper may be usefully employed for schema mapping.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartThesis.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.subjectMappingen_US
dc.subjectMegiddoen_US
dc.subjectDigital Librariesen_US
dc.subjectSchemasen_US
dc.subjectVisualizationen_US
dc.subjectArchaeologyen_US
dc.subjectETANAen_US
dc.titleSchema Mapper: A Visualization Tool for Incremental Semi-automatic Mapping-based Integration of Heterogeneous Collections into Archaeological Digital Libraries: The ETANA-DL Case Studyen_US
dc.typeThesisen_US
dc.contributor.departmentComputer Scienceen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineComputer Scienceen_US
dc.contributor.committeechairFox, Edward Alanen_US
dc.contributor.committeememberNorth, Christopher L.en_US
dc.contributor.committeememberFan, Weiguo Patricken_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05182005-114155/en_US
dc.date.sdate2005-05-18en_US
dc.date.rdate2006-06-17
dc.date.adate2005-06-17en_US


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