Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"schema matching"”.
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Developing, tuning, and using schema matching systems
This dissertation studies the schema matching problem that finds semantic correspon- dences (called matches) between disparate data sources. Examples of semantic matches include “location = address” and “name = concat(first-name,last-name).” Schema matching is one of the key challenges for many …
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Schema Matching and Data Extraction over HTML Tables
… allow us to match source records with a target schema. Ontologically specified wrappers allow us to extract data from source records into a target schema. Experimental results show that we can successfully map data of interest from source HTML tables with unknown structure to a given target …
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A Holistic Paradigm for Large Scale Schema Matching
"Schema matching is a critical problem for integrating heterogeneous information sources. Traditionally, the problem of matching multiple schemas has essentially relied on finding pairwise attribute correspondences in isolation. In contrast, this thesis proposes a new matching paradigm, holistic …
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Schema matching in a peer-to-peer database system
… allow data mediation between peers' databases, schema mappings need to exist, which are mappings between semantically equivalent attributes in different peers' schemas. Mappings can either be defined manually or found semi-automatically using a technique called schema matching. However, schema …
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Integrating Deep Web Data Sources
… clustering algorithm to extract the hierarchical schema of query interface. Second, we develop a novel interactive clustering-based matching algorithm to accurately match a large number of schemas and effectively resolve uncertain mappings via user interaction. Third, we develop a …
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TransformScout : finding compositions of transformations for software re-use
… integration tasks. The most prominent include schema matching, use of ontologies and logic-based techniques. A joint project by UFL and MIT, Morpheus, has attacked the same problem with a unique emphasis on re-use and sharing. In the first part of the thesis, we try to define software re-use …
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Fusing Automatically Extracted Annotations for the Semantic Web
… by the fusion system. Finally, the issue of schema heterogeneity can have a negative impact on the fusion performance. To address these issues, we propose KnoFuss: an architecture for Semantic Web data integration based on the principles of problem-solving methods. Algorithms dealing with …