Test Variables
Collection
- Reference (R1) - transcripts created by LDC human annotators
- Baseline (B1) - transcripts created by NIST/BBN time-adaptive automatic recognizer
- Speech (S1/S2) - transcripts created by sites’ own automatic recognizers
- Cross-Recognizer (CR) - all contributed recognizers
Boundaries
- Known (K) - Story boundaries provided by LDC annotators
- Unknown (U) - Story boundaries unknown