Min-Yen Kan and Danny C. C. Poo
Known Item Queries (JCDL 2005)
21/25
Task
2: Query Classification w/ search
results
• SVMs outperform decision
trees in every
category
• Machine translation
metrics and other search result metrics complement each other
• Best performer achieves ~68%
effectiveness of human performance
• Manual analysis of
decision tree shows overlap metrics most important feature