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Speech pre-processing techniques such as denoising, de-reverberation, and separation, are commonly employed as front-ends for various downstream speech processing tasks. However, these methods can sometimes be inadequate, resulting in…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-17 Sirui Li , Shuai Wang , Zhijun Liu , Zhongjie Jiang , Yannan Wang , Haizhou Li

Sound event localization and detection is a novel area of research that emerged from the combined interest of analyzing the acoustic scene in terms of the spatial and temporal activity of sounds of interest. This paper presents an overview…

Audio and Speech Processing · Electrical Eng. & Systems 2021-01-12 Archontis Politis , Annamaria Mesaros , Sharath Adavanne , Toni Heittola , Tuomas Virtanen

Improving the accuracy of single-channel automatic speech recognition (ASR) in noisy conditions is challenging. Strong speech enhancement front-ends are available, however, they typically require that the ASR model is retrained to cope with…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-10 Catalin Zorila , Rama Doddipatla

Reinforcement learning algorithms often suffer from slow convergence due to sparse reward signals, particularly in complex environments where feedback is delayed or infrequent. This paper introduces the Psychological Regret Model (PRM), a…

Machine Learning · Computer Science 2026-02-04 Zhe Xu

Acoustic scene classification (ASC) aims to classify an audio clip based on the characteristic of the recording environment. In this regard, deep learning based approaches have emerged as a useful tool for ASC problems. Conventional…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-08 Jianyuan Sun , Xubo Liu , Xinhao Mei , Jinzheng Zhao , Mark D. Plumbley , Volkan Kılıç , Wenwu Wang

In reinforcement learning, an agent interacts sequentially with an environment to maximize a reward, receiving only partial, probabilistic feedback. This creates a fundamental exploration-exploitation trade-off: the agent must explore to…

Quantum Physics · Physics 2026-03-27 Josep Lumbreras , Ruo Cheng Huang , Yanglin Hu , Marco Fanizza , Mile Gu

Acoustic event detection and scene classification are major research tasks in environmental sound analysis, and many methods based on neural networks have been proposed. Conventional methods have addressed these tasks separately; however,…

Diffusion models have recently advanced human motion generation, producing realistic and diverse animations from textual prompts. However, adapting these models to unseen actions or styles typically requires additional motion capture data…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Girolamo Macaluso , Lorenzo Mandelli , Mirko Bicchierai , Stefano Berretti , Andrew D. Bagdanov

The central challenge of reinforcement learning for reasoning lies not only in the sparsity of outcome-level supervision, but more fundamentally in how to transform feedback provided only at the end of a sequence into fine-grained learning…

Machine Learning · Computer Science 2026-05-26 Fei Ding , Yongkang Zhang , Runhao Liu , Yuhao Liao , Zijian Zeng , Sibo wang , Huiming Yang

Information-seeking conversation systems are increasingly popular in real-world applications, especially for e-commerce companies. To retrieve appropriate responses for users, it is necessary to compute the matching degrees between…

Computation and Language · Computer Science 2022-11-03 Haojie Pan , Cen Chen , Chengyu Wang , Minghui Qiu , Liu Yang , Feng Ji , Jun Huang

Acoustic scene classification (ASC) is one of the most popular problems in the field of machine listening. The objective of this problem is to classify an audio clip into one of the predefined scenes using only the audio data. This problem…

Deep learning has achieved remarkable successes in solving challenging reinforcement learning (RL) problems when dense reward function is provided. However, in sparse reward environment it still often suffers from the need to carefully…

Machine Learning · Computer Science 2019-02-19 Hao Liu , Alexander Trott , Richard Socher , Caiming Xiong

This paper investigates the effectiveness of factorial speech processing models in noise-robust automatic speech recognition tasks. For this purpose, the paper proposes an idealistic approach for modeling state-conditional observation…

Machine Learning · Computer Science 2016-10-06 Mahdi Khademian , Mohammad Mehdi Homayounpour

In the predict-then-optimize framework, the objective is to train a predictive model, mapping from environment features to parameters of an optimization problem, which maximizes decision quality when the optimization is subsequently solved.…

Machine Learning · Computer Science 2022-07-19 Kai Wang , Sanket Shah , Haipeng Chen , Andrew Perrault , Finale Doshi-Velez , Milind Tambe

Speech emotion recognition (SER) systems often struggle in real-world environments, where ambient noise severely degrades their performance. This paper explores a novel approach that exploits prior knowledge of testing environments to…

Sound · Computer Science 2025-11-11 Seong-Gyun Leem , Daniel Fulford , Jukka-Pekka Onnela , David Gard , Carlos Busso

While many deep learning methods on other domains have been applied to sound event detection (SED), differences between original domains of the methods and SED have not been appropriately considered so far. As SED uses audio data with two…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-24 Hyeonuk Nam , Seong-Hu Kim , Deokki Min , Byeong-Yun Ko , Seung-Deok Choi , Yong-Hwa Park

Reinforcement learning often needs to deal with the exponential growth of states and actions when exploring optimal control in high-dimensional spaces (often known as the curse of dimensionality). In this work, we address this issue by…

Machine Learning · Computer Science 2023-06-23 Yining Li , Peizhong Ju , Ness Shroff

This paper explores two techniques to improve the performance of text-dependent speaker verification systems based on deep neural networks. Firstly, we propose a general alignment mechanism to keep the temporal structure of each phrase and…

Sound · Computer Science 2019-05-01 Victoria Mingote , Antonio Miguel , Alfonso Ortega , Eduardo Lleida

One of the challenges in computational acoustics is the identification of models that can simulate and predict the physical behavior of a system generating an acoustic signal. Whenever such models are used for commercial applications an…

In existing Audio-Visual Speech Enhancement (AVSE) methods, objectives such as Scale-Invariant Signal-to-Noise Ratio (SI-SNR) and Mean Squared Error (MSE) are widely used; however, they often correlate poorly with perceptual quality and…

Sound · Computer Science 2026-03-18 Chih-Ning Chen , Jen-Cheng Hou , Hsin-Min Wang , Shao-Yi Chien , Yu Tsao , Fan-Gang Zeng