Name
Abstract | ||
|---|---|---|
We propose an analogy to eye witness line-up in order to compute calibrated likelihood ratios for speaker recognition, by including the target model in an identification trial with a cohort of foils. Expressions for the likelihood ratio as a function of cohort size, identification rank and system ROC performance are derived, and some properties of the likelihood ratio function are discussed. The line-up procedure is used as a method to calibrate recognition scores. Using NIST SRE 2010, we find calibration loss comparable to linear calibration (FoCal), while the proposed method gives improved discrimination. |
Year | Venue | Keywords |
|---|---|---|
2011 | 12TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION 2011 (INTERSPEECH 2011), VOLS 1-5 | Likelihood Ratio, calibration, speaker recognition, forensics |
DocType | Citations | PageRank |
Conference | 0 | 0.34 |
References | Authors | |
1 | 2 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| David A. van Leeuwen | 1 | 631 | 59.01 |
| Niko Brümmer | 2 | 595 | 44.01 |