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2003

Dispatching Cases versus Merging Case-Bases: When MCBR Matters

12 years 3 months ago
Dispatching Cases versus Merging Case-Bases: When MCBR Matters
Multi-case-base reasoning (MCBR) extends case-based reasoning to draw on multiple case bases that may address somewhat different tasks. In MCBR, an agent selectively supplements its own case-base as needed, by dispatching problems to external case-bases and using cross-case-base adaptation to adjust their solutions for inter-case-base differences. MCBR is often advocated as a means to facilitate handling large casebases, or to enable use of distributed case sources. However, this raises an important question: When storage is not an issue, and the entire external case-base is available, is there any reason for MCBR? This paper answers that question with an experimental assessment of how MCBR affects the quality of solutions generated. It demonstrates that for a given local case-base and an external case-base for a task environment that is similar to, but different from, the local task environment, MCBR can improve accuracy compared to merging the case-bases into a single case-base. Thi...
David B. Leake, Raja Sooriamurthi
Added 31 Oct 2010
Updated 31 Oct 2010
Type Conference
Year 2003
Where FLAIRS
Authors David B. Leake, Raja Sooriamurthi
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