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Neural network quantization aims to reduce the bit-widths of weights and activations, making it a critical technique for deploying deep neural networks on resource-constrained hardware. Most Quantization-Aware Training (QAT) methods rely on…

机器学习 · 计算机科学 2025-09-03 Kaiqi Zhao

With the widespread application of automatic speech recognition (ASR) systems, their vulnerability to adversarial attacks has been extensively studied. However, most existing adversarial examples are generated on specific individual models,…

声音 · 计算机科学 2025-03-26 Weifei Jin , Junjie Su , Hejia Wang , Yulin Ye , Jie Hao

Stellarator boundary optimization faces a fundamental numerical challenge: the extreme disparity between low- and high-mode amplitudes creates an optimization landscape in which direct full-spectrum approaches typically converge to poor…

等离子体物理 · 物理学 2025-09-23 Byoungchan Jang , Rory Conlin , Matt Landreman

Large language models (LLMs) have shown remarkable performance in various domains, but they are constrained by massive computational and storage costs. Quantization, an effective technique for compressing models to fit resource-limited…

计算与语言 · 计算机科学 2026-04-14 Han Liu , Haotian Gao , Xiaotong Zhang , Changya Li , Feng Zhang , Wei Wang , Fenglong Ma , Hong Yu

Achieving robust generalization across individuals remains a major challenge in electroencephalogram based imagined speech decoding due to substantial variability in neural activity patterns. This study examined how training dynamics and…

神经元与认知 · 定量生物学 2025-11-19 Byung-Kwan Ko , Soowon Kim , Seo-Hyun Lee

Mixture-of-Experts (MoE) models enable scalable computation and performance in large-scale deep learning but face quantization challenges due to sparse expert activation and dynamic routing. Existing post-training quantization (PTQ) methods…

计算与语言 · 计算机科学 2026-02-03 Zhongqian Fu , Tianyi Zhao , Ning Ding , Xianzhi Yu , Xiaosong Li , Yehui Tang , Yunhe Wang

This paper presents the main characteristics of the evolutionary optimization code named EOS, Evolutionary Optimization at Sapienza, and its successful application to challenging, real-world space trajectory optimization problems. EOS is a…

神经与进化计算 · 计算机科学 2020-07-14 Lorenzo Federici , Boris Benedikter , Alessandro Zavoli

Quantization is an effective technique for reducing the storage footprint and computational costs of Large Language Models (LLMs), but it often results in performance degradation. Existing post-training quantization methods typically use…

计算与语言 · 计算机科学 2026-01-27 Everlyn Asiko Chimoto , Mostafa Elhoushi , Bruce A. Bassett

The research in Environmental Sound Classification (ESC) has been progressively growing with the emergence of deep learning algorithms. However, data scarcity poses a major hurdle for any huge advance in this domain. Data augmentation…

音频与语音处理 · 电气工程与系统科学 2021-04-16 Aswathy Madhu , Suresh K

Expectation Maximization (EM) algorithm is a parameter estimation method from incomplete observations. In this paper, an implementation of this method to the calibration of HKS spectrometer at Jefferson Lab is described. We show that the…

数据分析、统计与概率 · 物理学 2007-05-23 Lulin Yuan

Large Language Models (LLMs) exhibit impressive performance across various tasks, but deploying them for inference poses challenges. Their high resource demands often necessitate complex, costly multi-GPU pipelines, or the use of smaller,…

机器学习 · 计算机科学 2024-12-10 Runsheng Bai , Bo Liu , Qiang Liu

Recent speech enhancement models have shown impressive performance gains by scaling up model complexity and training data. However, the impact of dataset variability (e.g. text, language, speaker, and noise) has been underexplored.…

音频与语音处理 · 电气工程与系统科学 2024-12-20 Leying Zhang , Wangyou Zhang , Chenda Li , Yanmin Qian

In speaker diarisation, speaker embedding extraction models often suffer from the mismatch between their training loss functions and the speaker clustering method. In this paper, we propose the method of spectral clustering-aware learning…

声音 · 计算机科学 2023-03-16 Evonne P. C. Lee , Guangzhi Sun , Chao Zhang , Philip C. Woodland

Calibration is a common practice in image steganalysis for extracting prominent features. Based on the idea of reembedding, a new set of calibrated features for audio steganalysis applications are proposed. These features are extracted from…

多媒体 · 计算机科学 2018-08-31 Hamzeh Ghasemzadeh , Mohammad H. Kayvanrad

In this paper we present a simple and computationally efficient quantization scheme that enables us to reduce the resolution of the parameters of a neural network from 32-bit floating point values to 8-bit integer values. The proposed…

机器学习 · 计算机科学 2016-12-20 Raziel Alvarez , Rohit Prabhavalkar , Anton Bakhtin

Modern speaker recognition system relies on abundant and balanced datasets for classification training. However, diverse defective datasets, such as partially-labelled, small-scale, and imbalanced datasets, are common in real-world…

音频与语音处理 · 电气工程与系统科学 2025-09-03 Ruijie Tao , Zhan Shi , Yidi Jiang , Tianchi Liu , Haizhou Li

We consider the problem of recognizing speech utterances spoken to a device which is generating a known sound waveform; for example, recognizing queries issued to a digital assistant which is generating responses to previous user inputs.…

音频与语音处理 · 电气工程与系统科学 2021-06-03 Nathan Howard , Alex Park , Turaj Zakizadeh Shabestary , Alexander Gruenstein , Rohit Prabhavalkar

Speech enhancement aims to improve the perceptual quality of the speech signal by suppression of the background noise. However, excessive suppression may lead to speech distortion and speaker information loss, which degrades the performance…

声音 · 计算机科学 2021-10-05 Yi Ma , Kong Aik Lee , Ville Hautamaki , Haizhou Li

We present Multiscale Audio Spectrogram Transformer (MAST) for audio classification, which brings the concept of multiscale feature hierarchies to the Audio Spectrogram Transformer (AST). Given an input audio spectrogram, we first patchify…

音频与语音处理 · 电气工程与系统科学 2023-05-19 Sreyan Ghosh , Ashish Seth , S. Umesh , Dinesh Manocha

Photorealistic Codec Avatars (PCA), which generate high-fidelity human face renderings, are increasingly being used in Virtual Reality (VR) environments to enable immersive communication and interaction through deep learning-based…

计算机视觉与模式识别 · 计算机科学 2025-10-30 Mingzhi Zhu , Ding Shang , Sai Qian Zhang