Graph Neural Networks for Contextual ASR with the Tree-Constrained Pointer Generator

1 code implementation • 30 May 2023 • Guangzhi Sun, Chao Zhang, Phil Woodland

The incorporation of biasing words obtained through contextual knowledge is of paramount importance in automatic speech recognition (ASR) applications.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +1

Combination of Deep Speaker Embeddings for Diarisation

no code implementations • 22 Oct 2020 • Guangzhi Sun, Chao Zhang, Phil Woodland

Significant progress has recently been made in speaker diarisation after the introduction of d-vectors as speaker embeddings extracted from neural network (NN) speaker classifiers for clustering speech segments.

Action Detection Activity Detection +2

Speaker diarisation using 2D self-attentive combination of embeddings

no code implementations • 8 Feb 2019 • Guangzhi Sun, Chao Zhang, Phil Woodland

This combination uses a 2-dimensional (2D) self-attentive structure, which extends the standard self-attentive layer by averaging not only across time but also across different types of embeddings.