Discovering Direct and Indirect Matches for Schema Elements

Authors: 
Xu, L.; Embley, D.
Author: 
Xu, L
Embley, D
Year: 
2003
Venue: 
DASFAA 2003
URL: 
http://csdl.computer.org/dl/proceedings/dasfaa/2003/1895/00/18950039.pdf
Citations: 
82
Citations range: 
50 - 99
AttachmentSize
Xu2003DiscoveringDirectandIndirect.pdf179.26 KB

Automating schema matching is challenging. Previous
approaches (e.g. [9, 5]) to automating schema matching
focus on computing direct element matches between two
schemas. Schemas, however, rarelymatc h directly. Thus, to
complete the task of schema matching, we must also compute
indirect element matches. In this paper, we present
a framework for generating direct as well as manyindirect
element matches between a source schema and a target
schema. Recognizing expected data values associated with
schema elements and applying schema-structure heuristics
are the keyideas to computing indirect matches. Experiments
we have conducted over several real-world application
domains show encouraging results, yielding over 90%
precision and recall for both direct and indirect element
matches.