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Zhengrui Ma

15 accepted papers

2025

Efficient Speech Language Modeling via Energy Distance in Continuous Latent Space

NeurIPS 2025poster

We introduce \emph{SLED}, an alternative approach to speech language modeling by encoding speech waveforms into sequences of continuous latent representations and modeling them autoregressively using an energy distance objective. The energy distance offers an analytical measure of the distributional…

Cited by 0SourcecodeScholar
2025

FastLongSpeech: Enhancing Large Speech-Language Models for Efficient Long-Speech Processing

NeurIPS 2025poster

The rapid advancement of Large Language Models (LLMs) has spurred significant progress in Large Speech-Language Models (LSLMs), enhancing their capabilities in both speech understanding and generation. While existing LSLMs often concentrate on augmenting speech generation or tackling a diverse array…

Cited by 0SourceScholar
2025

LLaMA-Omni: Seamless Speech Interaction with Large Language Models

ICLR 2025poster

Models like GPT-4o enable real-time interaction with large language models (LLMs) through speech, significantly enhancing user experience compared to traditional text-based interaction. However, there is still a lack of exploration on how to build speech interaction models based on open-source LLMs.…

2025

Large Language Models Are Read/Write Policy-Makers for Simultaneous Generation

AAAI 2025technical

Simultaneous generation models write generation results while reading streaming inputs, necessitating a policy-maker to determine the appropriate output timing. Existing simultaneous generation methods generally adopt the traditional encoder-decoder architecture and learn the generation and policy-m…

2024

A Non-autoregressive Generation Framework for End-to-End Simultaneous Speech-to-Any Translation

ACL 2024long

Simultaneous translation models play a crucial role in facilitating communication. However, existing research primarily focuses on text-to-text or speech-to-text models, necessitating additional cascade components to achieve speech-to-speech translation. These pipeline methods suffer from error prop…

2024

CTC-based Non-autoregressive Textless Speech-to-Speech Translation

ACL 2024findings

Direct speech-to-speech translation (S2ST) has achieved impressive translation quality, but it often faces the challenge of slow decoding due to the considerable length of speech sequences. Recently, some research has turned to non-autoregressive (NAR) models to expedite decoding, yet the translatio…

2024

Can We Achieve High-quality Direct Speech-to-Speech Translation without Parallel Speech Data?

ACL 2024long

Recently proposed two-pass direct speech-to-speech translation (S2ST) models decompose the task into speech-to-text translation (S2TT) and text-to-speech (TTS) within an end-to-end model, yielding promising results. However, the training of these models still relies on parallel speech data, which is…

2024

StreamSpeech: Simultaneous Speech-to-Speech Translation with Multi-task Learning

ACL 2024long

Simultaneous speech-to-speech translation (Simul-S2ST, a.k.a streaming speech translation) outputs target speech while receiving streaming speech inputs, which is critical for real-time communication. Beyond accomplishing translation between speech, Simul-S2ST requires a policy to control the model…

2023

Fuzzy Alignments in Directed Acyclic Graph for Non-Autoregressive Machine Translation

ICLR 2023poster

Non-autoregressive translation (NAT) reduces the decoding latency but suffers from performance degradation due to the multi-modality problem. Recently, the structure of directed acyclic graph has achieved great success in NAT, which tackles the multi-modality problem by introducing dependency betwee…

2023

Non-autoregressive Machine Translation with Probabilistic Context-free Grammar

NeurIPS 2023poster

Non-autoregressive Transformer(NAT) significantly accelerates the inference of neural machine translation. However, conventional NAT models suffer from limited expression power and performance degradation compared to autoregressive (AT) models due to the assumption of conditional independence among…

2023

Non-autoregressive Streaming Transformer for Simultaneous Translation

EMNLP 2023long main

Simultaneous machine translation (SiMT) models are trained to strike a balance between latency and translation quality. However, training these models to achieve high quality while maintaining low latency often leads to a tendency for aggressive anticipation. We argue that such issue stems from the…

Cited by 0SourcecodeScholar
2022

Prediction Difference Regularization against Perturbation for Neural Machine Translation

ACL 2022long

Regularization methods applying input perturbation have drawn considerable attention and have been frequently explored for NMT tasks in recent years. Despite their simplicity and effectiveness, we argue that these methods are limited by the under-fitting of training data. In this paper, we utilize p…

Cited by 15SourcePDFScholar
2022

Viterbi Decoding of Directed Acyclic Transformer for Non-Autoregressive Machine Translation

EMNLP 2022finding

Non-autoregressive models achieve significant decoding speedup in neural machine translation but lack the ability to capture sequential dependency. Directed Acyclic Transformer (DA-Transformer) was recently proposed to model sequential dependency with a directed acyclic graph. Consequently, it has t…