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Sound event localization aims at estimating the positions of sound sources in the environment with respect to an acoustic receiver (e.g. a microphone array). Recent advances in this domain most prominently focused on utilizing deep…

Self-supervised learning (SSL), especially contrastive methods, has raised attraction recently as it learns effective transferable representations without semantic annotations. A common practice for self-supervised pre-training is to use as…

计算机视觉与模式识别 · 计算机科学 2022-05-27 Zhili Liu , Jianhua Han , Lanqing Hong , Hang Xu , Kai Chen , Chunjing Xu , Zhenguo Li

Localization of a radio frequency (RF) signal source has various use cases, ranging from search and rescue, identification and deactivation of jammers, and tracking hostile activity near borders or on the battlefield. The use of unmanned…

信号处理 · 电气工程与系统科学 2023-01-18 Hyeokjun Kwon , Ismail Guvenc

Rapidly-exploring Random Tree Star(RRT*) is a recently proposed extension of Rapidly-exploring Random Tree (RRT) algorithm that provides a collision-free, asymptotically optimal path regardless of obstacle's geometry in a given environment.…

机器人学 · 计算机科学 2017-04-04 Ahmed Hussain Qureshi , Yasar Ayaz

Geographic state machine replication (SMR) is a replication method in which replicas of a service are located on multiple continents to improve the fault tolerance of a general service. Nowadays, geographic SMR is easily realized using…

分布式、并行与集群计算 · 计算机科学 2021-10-12 Shota Numakura , Junya Nakamura , Ren Ohmura

Deep reinforcement learning (DRL) has significantly advanced the field of combinatorial optimization (CO). However, its practicality is hindered by the necessity for a large number of reward evaluations, especially in scenarios involving…

机器学习 · 计算机科学 2024-07-18 Hyeonah Kim , Minsu Kim , Sungsoo Ahn , Jinkyoo Park

Spoofing attacks posed by generating artificial speech can severely degrade the performance of a speaker verification system. Recently, many anti-spoofing countermeasures have been proposed for detecting varying types of attacks from…

音频与语音处理 · 电气工程与系统科学 2020-12-08 Yuanjun Zhao , Roberto Togneri , Victor Sreeram

We develop an iterative subsampling approach to improve the computational efficiency of our previous work on solution path clustering (SPC). The SPC method achieves clustering by concave regularization on the pairwise distances between…

统计方法学 · 统计学 2016-09-16 Yuliya Marchetti , Qing Zhou

Self-supervised learning (SSL) models have achieved considerable improvements in automatic speech recognition (ASR). In addition, ASR performance could be further improved if the model is dedicated to audio content information learning…

音频与语音处理 · 电气工程与系统科学 2022-12-08 Genshun Wan , Tan Liu , Hang Chen , Jia Pan , Cong Liu , Zhongfu Ye

In the task of speaker diarization, the number of small-scale meetings accounts for a large proportion. When microphone arrays are employed as a recording device, its spatial information is usually ignored by most researchers. In this…

声音 · 计算机科学 2022-10-27 Yuxuan Du , Ruohua Zhou

Autonomous robot networks are an effective tool for monitoring large-scale environmental fields. This paper proposes distributed control strategies for localizing the source of a noisy signal, which could represent a physical quantity of…

多智能体系统 · 计算机科学 2014-04-14 Nikolay A. Atanasov , Jerome Le Ny , George J. Pappas

Leveraging received signal strength (RSS) measurements for indoor localization is highly attractive due to their inherent availability in ubiquitous wireless protocols. However, prevailing RSS-based methods often depend on complex…

信号处理 · 电气工程与系统科学 2025-09-30 Luis F. Abanto-Leon , Muhammad Salman , Lismer Andres Caceres-Najarro

Self-Supervised Learning (SSL) has led to considerable progress in Speaker Verification (SV). The standard framework uses same-utterance positive sampling and data-augmentation to generate anchor-positive pairs of the same speaker. This is…

音频与语音处理 · 电气工程与系统科学 2025-08-20 Theo Lepage , Reda Dehak

Radio source localization can benefit many fields, including wireless communications, radar, radio astronomy, wireless sensor networks, positioning systems, and surveillance systems. However, accurately estimating the position of a radio…

机器人学 · 计算机科学 2023-12-07 Asanka Perera , Vu Phi Tran , Sreenatha Anavatti , Kathryn Kasmarik , Matthew Garratt

Secure wireless information and power transfer based on directional modulation is conceived for amplify-and-forward (AF) relaying networks. Explicitly, we first formulate a secrecy rate maximization (SRM) problem, which can be decomposed…

信息论 · 计算机科学 2018-03-15 Xiaobo Zhou , Jun Li , Feng Shu , Qingqing Wu , Yongpeng Wu , Wen Chen , Hanzo Lajos

We present a solution for locating the source, or maximum, of an unknown scalar field using a swarm of mobile robots. Unlike relying on the traditional gradient information, the swarm determines an ascending direction to approach the source…

机器人学 · 计算机科学 2024-08-15 Antonio Acuaviva , Jesus Bautista , Weijia Yao , Juan Jimenez , Hector Garcia de Marina

The prevailing noise-resistant and reverberation-resistant localization algorithms primarily emphasize separating and providing directional output for each speaker in multi-speaker scenarios, without association with the identity of…

声音 · 计算机科学 2023-10-18 Yu Chen , Xinyuan Qian , Zexu Pan , Kainan Chen , Haizhou Li

Automatic evaluation of ST systems is typically performed by comparing translation hypotheses with one or more reference translations. While effective to some extent, this approach inherits the limitation of reference-based evaluation that…

计算与语言 · 计算机科学 2026-04-09 Mauro Cettolo , Marco Gaido , Matteo Negri , Sara Papi , Luisa Bentivogli

Source localization by matched-field processing (MFP) generally involves solving a number of computationally intensive partial differential equations. This paper introduces a technique that mitigates this computational workload by…

信息论 · 计算机科学 2015-05-30 William Mantzel , Justin Romberg , Karim Sabra

Reinforcement Learning (RL) is crucial for unlocking the complex reasoning capabilities of Diffusion-based Large Language Models (dLLMs). However, applying RL to dLLMs faces unique challenges in efficiency and stability. To address these…

人工智能 · 计算机科学 2026-02-10 Jiawei Liu , Xiting Wang , Yuanyuan Zhong , Defu Lian , Yu Yang