Matching Schemas From Disparate Data Sources

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Why do we care?• Our main concern is network data• E.g., how to map data from SNMP intoNetML?• Not quite a new problem..!
Manual integration is notpractical• <strong>Schemas</strong> can be quite large(tedious, error-prone, ..)• No documentation or meta dataavailable sometimes!!?• Poor design: exact semantics notknown or fully captured in theschema• Schema structure may repeatedlychange over the timeCannot be fully automated but at least to a large extent..(Semi-Automatic)
Page 1 and 2: Matching SchemasFrom DisparateData
Page 3 and 4: What is Semantic Matching?• Mappi
Page 5: Schema Sfantastic house 250,000 1
Page 9 and 10: • Matching Accuracy!Key Challenge
Page 11 and 12: • Training/domain expert:- Ask us
Page 13 and 14: • Fragment-oriented:- Decompose X
Page 15 and 16: Design• A collection of matchers
Page 17 and 18: • Name Matcher (Exact, Levenshtei
Page 28 and 29: Conclusion• Schema matching is th
Page 30: Thanks! ☺Any Q?

Matching Schemas From Disparate Data Sources

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