PPT Slide
Outline of Talk
Topic Definition
TDT Task Performance: Detection Cost Function
The Segmentation Task: Find the Story Boundaries
The Topic Tracking Task: Find the on-topic stories
The Topic Detection Task
Evaluation of Topic Detection
The TDT2 Corpus (See URL http://morph.ldc.upenn.edu/TDT for details.)
TDT2 Corpus Composition
On-Topic Stories as a Function of Topic and Time
Numbers of Stories by Topic Cumulative Distributions
Results of Statistical Tests Comparing Topic Sets
Evaluation Documentation and Software
Segmentation Evaluation
1998 TDT-2 Segmentation Results
Tracking Evaluation
1998 TDT-2 Tracking Results: Newswire + ASR Text, 4 Training Stories, Given Boundaries
Effects of Segmentation on Tracking CMU3 System, on Newswire + ASR Texts, # Training Stories (Nt) = 4
Detection Evaluation
Email: jonathan.fiscus@nist.gov
Home Page: http://www.nist.gov/speech