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58 Tech
58 Tech
Nov 27, 2020 · Artificial Intelligence

An Overview of Kaldi Chain Model Speech Recognition and Its Relationship with HMM‑DNN and Discriminative Training

This article explains the Kaldi chain model speech‑recognition system, covering HMM‑DNN fundamentals, discriminative (MMI) training, the special single‑state HMM topology, TDNN architecture, training pipelines, and experimental results that demonstrate its performance advantages over traditional GMM‑based approaches.

HMM-DNNKaldiTDNN
0 likes · 19 min read
An Overview of Kaldi Chain Model Speech Recognition and Its Relationship with HMM‑DNN and Discriminative Training
58 Tech
58 Tech
Aug 19, 2020 · Artificial Intelligence

Speech Recognition in 58.com: Application Scenarios, Data Collection, Kaldi Chain Model Practice, and End‑to‑End Exploration

This article presents a comprehensive overview of how 58.com leverages large‑scale voice data from call‑center, private phone, and micro‑chat platforms, detailing data collection, annotation, Kaldi‑based chain model training, lattice‑free techniques, and end‑to‑end Transformer‑CTC models to improve Chinese speech recognition performance.

ASRDeep LearningKaldi
0 likes · 16 min read
Speech Recognition in 58.com: Application Scenarios, Data Collection, Kaldi Chain Model Practice, and End‑to‑End Exploration