40 years of research on speech and speaker recognition

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40 years of research on speech and speaker recognition Selected topics from 40 years of research on speech and speaker recognition Sadaoki Furui Tokyo Institute of Technology Department of Computer Science furui@cs.titech.ac.jp

Generations of ASR technology 1950 1960 1970 1980 1990 2000 2010 1952 1G 1968 Heuristic approaches (analog filter bank + logic circuits) 1968 2G 1980 Pattern matching (LPC, FFT, DTW) 1980 3G 1990 Statistical framework (HMM, n-gram, neural net) 1990 3.5G Discriminative approaches, robust training, Prehistory normalization, adaptation, spontaneous speech, rich transcription ? 4G Extended knowledge processing Our research NTT Labs (+Bell Labs), Tokyo Tech Collaboration with other labs

Japanese traditional cuisine “Kaiseki-ryori”

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