Semantic Integration in Heterogeneous Databases Using Neural Networks

Authors: 
Li, W.; Clifton, C.
Author: 
Li, W
Clifton, C
Year: 
1994
Venue: 
VLDB, 1994
URL: 
http://dit.unitn.it/~accord/RelatedWork/Matching/SemInt.pdf
Citations: 
221
Citations range: 
100 - 499
AttachmentSize
Li1994SemanticIntegrationin.pdf1.37 MB

One important step in integrating heteroge- neous databases is matching equivalent at- tributes: Determining which fields in two databases refer to the same data. The mean- ing of information may be embodied within a. database model, a conceptual schema, appli- cation programs, or data contents. Integra- tion involves extracting semantics, expressing them as metadata, and matching semantically equivalent data elements. We present a proce- dure using a classifier to categorize attributes according to their field specifications and data values, then train a neural network to recog- nize similar attributes. In our technique, the knowledge of how to match equivalent data elements is “discovered” from metadata , not “pre-programmed”.