Table 4 Computational complexity for different speaker normalization algorithms. (NWs: number of warpings, NFEs: number of feature extractions, NLCs: number of likelihood computations, NRPs: number of recognition passes).
Algorithm | NW | NFE (Search+Recog.) | NLC | NRP |
|---|---|---|---|---|
VTLN |
|
|
|
|
BISN |
|
|
|
|
BISN w/BTS |
|
|
|
|
BISN w/MS-BTS (off-line) |
|
|
|
|
BISN w/MS-BTS (on-the-fly) |
|
|
|
|
Total gain [%] |
|
|
|
|
