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Pegah Ghahremani

6 accepted papers

2024

Hot-Fixing Wake Word Recognition for End-to-End ASR Via Neural Model Reprogramming

ICASSP 2024accepted

This paper proposes two novel variants of neural reprogramming to enhance wake word recognition in streaming end-to-end ASR models without updating model weights. The first, "trigger-frame reprogramming", prepends the input speech feature sequence with the learned trigger-frames of the target wake w…

Cited by 0SourceScholar
2023

Prune Then Distill: Dataset Distillation with Importance Sampling

ICASSP 2023accepted

The development of large datasets for various tasks has driven the success of deep learning models but at the cost of increased label noise, duplication, collection challenges, storage capabilities, and training requirements. In this work, we investigate whether all samples in large datasets contrib…

Cited by 0SourceScholar
2018

A Time-Restricted Self-Attention Layer for ASR

ICASSP 2018accepted

Self-attention - an attention mechanism where the input and output sequence lengths are the same - has recently been successfully applied to machine translation, caption generation, and phoneme recognition. In this paper we apply a restricted self-attention mechanism (with multiple heads) to speech…

Cited by 0SourceScholar
2017

An empirical evaluation of zero resource acoustic unit discovery

ICASSP 2017accepted

Acoustic unit discovery (AUD) is a process of automatically identifying a categorical acoustic unit inventory from speech and producing corresponding acoustic unit tokenizations. AUD provides an important avenue for unsupervised acoustic model training in a zero resource setting where expert-provide…

Cited by 0SourceScholar