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Zeeshan Ahmed

8 accepted papers

2025

Textless Streaming Speech-to-Speech Translation using Semantic Speech Tokens

ICASSP 2025accepted

Cascaded speech-to-speech translation systems often suffer from the error accumulation problem and high latency, which is a result of cascaded modules whose inference delays accumulate. In this paper, we propose a transducer-based speech translation model that outputs discrete speech tokens in a low…

Cited by 0SourceScholar
2025

Transcribing and Translating, Fast and Slow: Joint Speech Translation and Recognition

ICASSP 2025accepted

We propose the joint speech translation and recognition (JSTAR) model that leverages the fast-slow cascaded encoder architecture for simultaneous end-to-end automatic speech recognition (ASR) and speech translation (ST). The model is transducer-based and uses a multi-objective training strategy that…

Cited by 0SourceScholar
2024

Contextual Biasing of Named-Entities with Large Language Models

ICASSP 2024accepted

We explore contextual biasing with Large Language Models (LLMs) to enhance Automatic Speech Recognition (ASR) in second-pass rescoring. Our approach introduces the utilization of prompts for LLMs during rescoring without the need for fine-tuning. These prompts incorporate a biasing list and a set of…

Cited by 0SourceScholar
2024

DOC-RAG: ASR Language Model Personalization with Domain-Distributed Co-occurrence Retrieval Augmentation

COLING 2024main

We propose DOC-RAG - Domain-distributed Co-occurrence Retrieval Augmentation for ASR language model personalization aiming to improve the automatic speech recognition of rare word patterns in unseen domains. Our approach involves contrastively training a document retrieval module to rank external kn…

Cited by 2SourcePDFScholar
2024

Recovering from Privacy-Preserving Masking with Large Language Models

ICASSP 2024accepted

Model adaptation is crucial to handle the discrepancy between proxy training data and actual users’ data received. To effectively perform adaptation, textual data of users is typically stored on servers or their local devices, where downstream natural language processing (NLP) models can be directly…

Cited by 0SourceScholar
2023

PersonaLM: Language Model Personalization via Domain-distributed Span Aggregated K-Nearest N-gram Retrieval Augmentation

EMNLP 2023long findings

We introduce PersonaLM - Domain-distributed Span-Aggregated K-nearest N-gram retrieval augmentation to improve language modeling for Automatic Speech Recognition (ASR) personalization. PersonaLM leverages contextually similar n-gram word frequencies for recognizing rare word patterns associated with…

Cited by 0SourceScholar
2022

CUE Vectors: Modular Training of Language Models Conditioned on Diverse Contextual Signals

ACL 2022findings

We propose a framework to modularize the training of neural language models that use diverse forms of context by eliminating the need to jointly train context and within-sentence encoders. Our approach, contextual universal embeddings (CUE), trains LMs on one type of contextual data and adapts to no…

Cited by 6SourcePDFScholar
2022

Mitigating Closed-Model Adversarial Examples with Bayesian Neural Modeling for Enhanced End-to-End Speech Recognition

ICASSP 2022accepted

In this work, we aim to enhance the system robustness of end-to-end automatic speech recognition (ASR) against adversarially-noisy speech examples. We focus on a rigorous and empirical "closed-model adversarial robustness" setting (e.g., on-device or cloud applications). The adversarial noise is onl…

Cited by 0SourceScholar