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This work proposes an efficient method to enhance the quality of corrupted speech signals by leveraging both acoustic and visual cues. While existing diffusion-based approaches have demonstrated remarkable quality, their applicability is…

音频与语音处理 · 电气工程与系统科学 2024-06-14 Chaeyoung Jung , Suyeon Lee , Ji-Hoon Kim , Joon Son Chung

Many real-world applications of flow-based generative models desire a diverse set of samples that cover multiple modes of the target distribution. However, the predominant approach for obtaining diverse sets is not sample-efficient, as it…

机器学习 · 计算机科学 2025-04-11 Mashrur M. Morshed , Vishnu Boddeti

To interpret natural language at the discourse level, it is very useful to accurately recognize dialogue acts, such as SUGGEST, in identifying speaker intentions. Our research explores the utility of a machine learning method called…

cmp-lg · 计算机科学 2007-05-23 Ken Samuel , Sandra Carberry , K. Vijay-Shanker

We study a distributed learning problem in which Alice sends a compressed distillation of a set of training data to Bob, who uses the distilled version to best solve an associated learning problem. We formalize this as a rate-distortion…

信息论 · 计算机科学 2018-10-30 Parinaz Farajiparvar , Ahmad Beirami , Matthew Nokleby

In this paper we examine a formalization of feature distribution learning (FDL) in information-theoretic terms relying on the analytical approach and on the tools already used in the study of the information bottleneck (IB). It has been…

机器学习 · 计算机科学 2019-10-22 Fabio Massimo Zennaro , Ke Chen

Generative models have gained more and more attention in recent years for their remarkable success in tasks that required estimating and sampling data distribution to generate high-fidelity synthetic data. In speech, text-to-speech…

音频与语音处理 · 电气工程与系统科学 2024-03-27 Alexander H. Liu , Matt Le , Apoorv Vyas , Bowen Shi , Andros Tjandra , Wei-Ning Hsu

Target speaker extraction (TSE) aims to isolate a desired speaker's voice from a multi-speaker mixture using auxiliary information such as a reference utterance. Although recent advances in diffusion and flow-matching models have improved…

音频与语音处理 · 电气工程与系统科学 2025-12-23 Riki Shimizu , Xilin Jiang , Nima Mesgarani

Large language models (LLMs) have recently demonstrated remarkable progress in reasoning capabilities through reinforcement learning with verifiable rewards (RLVR). By leveraging simple rule-based rewards, RL effectively incentivizes LLMs…

人工智能 · 计算机科学 2025-07-25 Shiye Lei , Zhihao Cheng , Kai Jia , Dacheng Tao

Time series forecasting has become an increasingly popular research area due to its critical applications in various real-world domains such as traffic management, weather prediction, and financial analysis. Despite significant…

机器学习 · 计算机科学 2024-08-22 Ninghui Feng , Songning Lai , Jiayu Yang , Fobao Zhou , Zhenxiao Yin , Hang Zhao

In many applications, it is desirable to extract only the relevant aspects of data. A principled way to do this is the information bottleneck (IB) method, where one seeks a code that maximizes information about a 'relevance' variable, Y,…

机器学习 · 统计学 2016-10-27 Matthew Chalk , Olivier Marre , Gasper Tkacik

This paper studies the training-testing discrepancy (a.k.a. exposure bias) problem for improving the diffusion models. During training, the input of a prediction network at one training timestep is the corresponding ground-truth noisy data…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Hui Li , Jiayue Lyu , Fu-Yun Wang , Kaihui Cheng , Siyu Zhu , Jingdong Wang

Most current speech enhancement (SE) methods recover clean speech from noisy inputs by directly estimating time-frequency masks or spectrums. However, these approaches often neglect the distinct attributes, such as semantic content and…

音频与语音处理 · 电气工程与系统科学 2025-05-21 Yang Xiang , Canan Huang , Desheng Hu , Jingguang Tian , Xinhui Hu , Chao Zhang

Neural speech synthesis techniques have enabled highly realistic speech deepfakes, posing major security risks. Speech deepfake detection is challenging due to distribution shifts across spoofing methods and variability in speakers,…

声音 · 计算机科学 2025-09-30 Pu Huang , Shouguang Wang , Siya Yao , Mengchu Zhou

Although deep-learning-based methods have markedly improved the performance of speech separation over the past few years, it remains an open question how to integrate multi-channel signals for speech separation. We propose two methods,…

音频与语音处理 · 电气工程与系统科学 2020-08-12 Yuichiro Koyama , Oluwafemi Azeez , Bhiksha Raj

The principle of the Information Bottleneck (Tishby et al. 1999) is to produce a summary of information X optimized to predict some other relevant information Y. In this paper, we propose a novel approach to unsupervised sentence…

计算与语言 · 计算机科学 2019-09-23 Peter West , Ari Holtzman , Jan Buys , Yejin Choi

Supervised fine-tuning (SFT) is a common method to enhance the tool calling capabilities of Large Language Models (LLMs), with the training data often being synthesized. The current data synthesis process generally involves sampling a set…

计算与语言 · 计算机科学 2025-03-18 Zezhong Wang , Xingshan Zeng , Weiwen Liu , Liangyou Li , Yasheng Wang , Lifeng Shang , Xin Jiang , Qun Liu , Kam-Fai Wong

Whether the system under study is a shoal of fish, a collection of neurons, or a set of interacting atmospheric and oceanic processes, transfer entropy measures the flow of information between time series and can detect possible causal…

机器学习 · 计算机科学 2024-11-08 Kieran A. Murphy , Zhuowen Yin , Dani S. Bassett

The difficulty of obtaining paired data remains a major bottleneck for learning image restoration and enhancement models for real-world applications. Current strategies aim to synthesize realistic training data by modeling noise and…

计算机视觉与模式识别 · 计算机科学 2021-09-17 Valentin Wolf , Andreas Lugmayr , Martin Danelljan , Luc Van Gool , Radu Timofte

Many important security problems in JavaScript, such as browser extension security, untrusted JavaScript libraries and safe integration of mutually distrustful websites (mash-ups), may be effectively addressed using an efficient…

编程语言 · 计算机科学 2015-01-20 Stefan Heule , Deian Stefan , Edward Z. Yang , John C. Mitchell , Alejandro Russo

Transformer-based models have gained increasing popularity achieving state-of-the-art performance in many research fields including speech translation. However, Transformer's quadratic complexity with respect to the input sequence length…

计算与语言 · 计算机科学 2023-10-19 Sara Papi , Marco Gaido , Matteo Negri , Marco Turchi