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A data abstraction approach for query relaxation Huh, Soon-Young; Moon, KH; Lee, H, INFORMATION AND SOFTWARE TECHNOLOGY, v.42, no.6, pp.407 - 418, 2000-04 |
Providing ranked cooperative query answers using the metricized knowledge abstraction hierarchy Shin, MK; Huh, Soon-Young; Lee, W, EXPERT SYSTEMS WITH APPLICATIONS, v.32, no.2, pp.469 - 484, 2007-02 |
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