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Submodular function minimization is a fundamental optimization problem that arises in several applications in machine learning and computer vision. The problem is known to be solvable in polynomial time, but general purpose algorithms have…

机器学习 · 计算机科学 2015-02-10 Alina Ene , Huy L. Nguyen

The vast increase in amount and complexity of digital content led to a wide interest in ad-hoc retrieval systems in recent years. Complementary, the existence of heterogeneous data sources and retrieval models stimulated the proliferation…

计算机视觉与模式识别 · 计算机科学 2019-07-03 Icaro Cavalcante Dourado , Ricardo da Silva Torres

Distributed aggregation allows the derivation of a given global aggregate property from many individual local values in nodes of an interconnected network system. Simple aggregates such as minima/maxima, counts, sums and averages have been…

分布式、并行与集群计算 · 计算机科学 2012-04-09 Miguel Borges , Paulo Jesus , Carlos Baquero , Paulo Sérgio Almeida

Segmentation for continuous Automatic Speech Recognition (ASR) has traditionally used silence timeouts or voice activity detectors (VADs), which are both limited to acoustic features. This segmentation is often overly aggressive, given that…

Automatic Speech Recognition (ASR) systems generalize poorly on accented speech. The phonetic and linguistic variability of accents present hard challenges for ASR systems today in both data collection and modeling strategies. The resulting…

Speech communication systems are prone to performance degradation in reverberant and noisy acoustic environments. Dereverberation and noise reduction algorithms typically require several model parameters, e.g. the speech, reverberation and…

音频与语音处理 · 电气工程与系统科学 2020-01-28 Yaron Laufer , Bracha Laufer-Goldshtein , Sharon Gannot

Automatic speech recognition (ASR) systems are of vital importance nowadays in commonplace tasks such as speech-to-text processing and language translation. This created the need for an ASR system that can operate in realistic crowded…

音频与语音处理 · 电气工程与系统科学 2020-12-29 Sherif Abdulatif , Karim Armanious , Karim Guirguis , Jayasankar T. Sajeev , Bin Yang

State-of-the-art Automatic Speech Recognition (ASR) systems are known to exhibit disparate performance on varying speech accents. To improve performance on a specific target accent, a commonly adopted solution is to finetune the ASR model…

音频与语音处理 · 电气工程与系统科学 2024-12-18 Suraj Kothawade , Anmol Mekala , Chandra Sekhara D , Mayank Kothyari , Rishabh Iyer , Ganesh Ramakrishnan , Preethi Jyothi

As human-machine voice interfaces provide easy access to increasingly intelligent machines, many state-of-the-art automatic speech recognition (ASR) systems are proposed. However, commercial ASR systems usually have poor performance on…

计算与语言 · 计算机科学 2023-09-28 Yanan Jia

One of the frontier issues that severely hamper the development of automatic snore sound classification (ASSC) associates to the lack of sufficient supervised training data. To cope with this problem, we propose a novel data augmentation…

机器学习 · 计算机科学 2019-04-01 Zixing Zhang , Jing Han , Kun Qian , Christoph Janott , Yanan Guo , Bjoern Schuller

This study addresses robust automatic speech recognition (ASR) by introducing a Conformer-based acoustic model. The proposed model builds on the wide residual bi-directional long short-term memory network (WRBN) with utterance-wise dropout…

声音 · 计算机科学 2022-10-21 Yufeng Yang , Peidong Wang , DeLiang Wang

An accurate objective speech intelligibility prediction algorithms is of great interest for many applications such as speech enhancement for hearing aids. Most algorithms measures the signal-to-noise ratios or correlations between the…

音频与语音处理 · 电气工程与系统科学 2022-07-07 Zehai Tu , Ning Ma , Jon Barker

Multimodal speech recognition aims to improve the performance of automatic speech recognition (ASR) systems by leveraging additional visual information that is usually associated to the audio input. While previous approaches make crucial…

声音 · 计算机科学 2022-04-29 Dan Oneata , Horia Cucu

Reliable detection of the prodromal stages of Alzheimer's disease (AD) remains difficult even today because, unlike other neurocognitive impairments, there is no definitive diagnosis of AD in vivo. In this context, existing research has…

机器学习 · 计算机科学 2021-08-03 Amish Mittal , Sourav Sahoo , Arnhav Datar , Juned Kadiwala , Hrithwik Shalu , Jimson Mathew

Self-supervised learning (SSL) based models have been shown to generate powerful representations that can be used to improve the performance of downstream speech tasks. Several state-of-the-art SSL models are available, and each of these…

计算与语言 · 计算机科学 2023-02-21 A Arunkumar , Vrunda N Sukhadia , S. Umesh

Despite the impressive performance recently achieved by automatic speech recognition (ASR), we observe two primary challenges that hinder its broader applications: (1) The difficulty of introducing scalability into the model to support more…

音频与语音处理 · 电气工程与系统科学 2023-06-29 Zhongzhi Yu , Yang Zhang , Kaizhi Qian , Yonggan Fu , Yingyan Lin

This paper proposes a new framework for distributed optimization, called distributed aggregative optimization, which allows local objective functions to be dependent not only on their own decision variables, but also on the average of…

最优化与控制 · 数学 2020-05-28 Xiuxian Li , Lihua Xie , Yiguang Hong

In this manuscript, we research on the behaviors of surrogates for the rank function on different image processing problems and their optimization algorithms. We first propose a novel nonconvex rank surrogate on the general rank…

机器学习 · 计算机科学 2024-09-23 Cho-Ying Wu , Jian-Jiun Ding

In this article we propose a new supervised ensemble learning method called Data Shared Adaptive Bootstrap Aggregated (AdaBag) Lasso for capturing low dimensional useful features for word based sentiment analysis and mining problems. The…

机器学习 · 统计学 2018-07-31 Ashutosh K. Maurya

We present a novel approach centered on the decoding stage of Automatic Speech Recognition (ASR) that enhances multilingual performance, especially for low-resource languages. It utilizes a cross-lingual embedding clustering method to…

计算与语言 · 计算机科学 2025-01-30 Zhengdong Yang , Qianying Liu , Sheng Li , Fei Cheng , Chenhui Chu