Sciweavers

Share
SIGIR
2002
ACM

A critical examination of TDT's cost function

8 years 11 months ago
A critical examination of TDT's cost function
Topic Detection and Tracking (TDT) tasks are evaluated using a cost function. The standard TDT cost function assumes a constant probability of relevance P(rel) across all topics. In practice, P(rel) varies widely across topics. We argue using both theoretical and experimental evidence that the cost function should be modified to account for the varying P(rel). Categories and Subject Descriptors H.3.3 [Information Search And Retrieval]: Information Filtering Keywords Modeling score distributions, Topic Detection and Tracking, threshold, normalization
R. Manmatha, Ao Feng, James Allan
Added 23 Dec 2010
Updated 23 Dec 2010
Type Journal
Year 2002
Where SIGIR
Authors R. Manmatha, Ao Feng, James Allan
Comments (0)
books