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This paper proposes an extremely lightweight phone-based transducer model with a tiny decoding graph on edge devices. First, a phone synchronous decoding (PSD) algorithm based on blank label skipping is first used to speed up the transducer…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-09 Yuekai Zhang , Sining Sun , Long Ma

Long-context inference for Large Language Models (LLMs) is heavily limited by high computational demands. While several existing methods optimize attention computation, they still process the full set of hidden states at each layer,…

Computation and Language · Computer Science 2025-11-25 Lingkun Long , Rubing Yang , Yushi Huang , Desheng Hui , Ao Zhou , Jianlei Yang

Large language model (LLM) inference at the network edge is a promising serving paradigm that leverages distributed edge resources to run inference near users and enhance privacy. Existing edge-based LLM inference systems typically adopt…

Systems and Control · Electrical Eng. & Systems 2025-10-14 Bingjie Zhu , Zhixiong Chen , Liqiang Zhao , Hyundong Shin , Arumugam Nallanathan

Diffusion language models (DLMs) generate text through iterative denoising, but inference requires full-sequence attention at every iteration, resulting in substantial redundant computation on masked tokens. Block-wise diffusion can reduce…

Machine Learning · Computer Science 2026-02-03 Fengrui Zuo , Zhiwei Ke , Yiming Liu , Wenqi Lou , Chao Wang , Xuehai Zhou

With the emergence of diffusion models as a frontline generative model, many researchers have proposed molecule generation techniques with conditional diffusion models. However, the unavoidable discreteness of a molecule makes it difficult…

Machine Learning · Computer Science 2025-06-05 Jinho Chang , Jong Chul Ye

Transformer-based pretrained language models (PLMs) have achieved great success in modern NLP. An important advantage of PLMs is good out-of-distribution (OOD) robustness. Recently, diffusion models have attracted a lot of work to apply…

Computation and Language · Computer Science 2023-07-27 Huazheng Wang , Daixuan Cheng , Haifeng Sun , Jingyu Wang , Qi Qi , Jianxin Liao , Jing Wang , Cong Liu

This paper presents a neural vocoder based on a denoising diffusion probabilistic model (DDPM) incorporating explicit periodic signals as auxiliary conditioning signals. Recently, DDPM-based neural vocoders have gained prominence as…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-23 Yukiya Hono , Kei Hashimoto , Yoshihiko Nankaku , Keiichi Tokuda

Diffusion probabilistic models have shown great success in generating high-quality images controllably, and researchers have tried to utilize this controllability into text generation domain. Previous works on diffusion-based language…

Computation and Language · Computer Science 2023-06-13 Yiwei Lyu , Tiange Luo , Jiacheng Shi , Todd C. Hollon , Honglak Lee

The front-end module in a typical Mandarin text-to-speech system (TTS) is composed of a long pipeline of text processing components, which requires extensive efforts to build and is prone to large accumulative model size and cascade errors.…

Sound · Computer Science 2021-01-01 Yang Zhang , Liqun Deng , Yasheng Wang

While recent zero-shot text-to-speech (TTS) models have significantly improved speech quality and expressiveness, mainstream systems still suffer from issues related to speech-text alignment modeling: 1) models without explicit speech-text…

Audio and Speech Processing · Electrical Eng. & Systems 2025-03-31 Ziyue Jiang , Yi Ren , Ruiqi Li , Shengpeng Ji , Boyang Zhang , Zhenhui Ye , Chen Zhang , Bai Jionghao , Xiaoda Yang , Jialong Zuo , Yu Zhang , Rui Liu , Xiang Yin , Zhou Zhao

Effectively adapting powerful pretrained foundation models to diverse tasks remains a key challenge in AI deployment. Current approaches primarily follow two paradigms:discrete optimization of text prompts through prompt engineering, or…

Computation and Language · Computer Science 2025-08-06 Xiaoming Hou , Jiquan Zhang , Zibin Lin , DaCheng Tao , Shengli Zhang

Diffusion Probabilistic Models (DPMs) have recently demonstrated impressive results on various generative tasks.Despite its promises, the learned representations of pre-trained DPMs, however, have not been fully understood. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Xingyi Yang , Xinchao Wang

While the performance of cross-lingual TTS based on monolingual corpora has been significantly improved recently, generating cross-lingual speech still suffers from the foreign accent problem, leading to limited naturalness. Besides,…

Sound · Computer Science 2023-09-06 Tao Li , Chenxu Hu , Jian Cong , Xinfa Zhu , Jingbei Li , Qiao Tian , Yuping Wang , Lei Xie

Denoising Diffusion Probabilistic Models (DDPMs) are a very popular class of deep generative model that have been successfully applied to a diverse range of problems including image and video generation, protein and material synthesis,…

We investigate methods to reduce inference time and memory footprint in stable diffusion models by introducing lightweight decoders for both image and video synthesis. Traditional latent diffusion pipelines rely on large Variational…

Computer Vision and Pattern Recognition · Computer Science 2025-03-10 Alexey Buzovkin , Evgeny Shilov

Low-complexity speech enhancement on mobile phones is crucial in the era of 5G. Thus, focusing on handheld mobile phone communication scenario, based on power level difference (PLD) algorithm and lightweight U-Net, we propose PLD-guided…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-07 Nan Zhou , Youhai Jiang , Jialin Tan , Chongmin Qi

The latency bottleneck of traditional text-to-speech (TTS) systems fundamentally hinders the potential of streaming large language models (LLMs) in conversational AI. These TTS systems, typically trained and inferenced on complete…

Computation and Language · Computer Science 2025-05-27 Richard He Bai , Zijin Gu , Tatiana Likhomanenko , Navdeep Jaitly

Diffusion models (DMs) are one of the most widely used generative models for producing high quality images. However, a flurry of recent papers points out that DMs are least private forms of image generators, by extracting a significant…

Machine Learning · Statistics 2025-03-06 Michael F. Liu , Saiyue Lyu , Margarita Vinaroz , Mijung Park

In this study, we propose Shortcut Fine-Tuning (SFT), a new approach for addressing the challenge of fast sampling of pretrained Denoising Diffusion Probabilistic Models (DDPMs). SFT advocates for the fine-tuning of DDPM samplers through…

Machine Learning · Computer Science 2024-09-23 Ying Fan , Kangwook Lee

Most text-to-speech (TTS) methods use high-quality speech corpora recorded in a well-designed environment, incurring a high cost for data collection. To solve this problem, existing noise-robust TTS methods are intended to use noisy speech…

Sound · Computer Science 2022-06-30 Takaaki Saeki , Kentaro Tachibana , Ryuichi Yamamoto