Table of Contents
UMass at TDT 2000
Work on Story Link Detection
What is LCA?
LCA for story smoothing
Smoothing SLD with LCA
Work on Story Link Detection
Score normalization
Score distributions, same topic
Score distributions, diff topic
Clearly need to normalize
Combined distribution (before normalization)
After normalization (on same data--”cheating”)
DET plots from normalization
Conclusions
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