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Masked diffusion language models (MDMs) have recently gained traction as a viable generative framework for natural language. This can be attributed to its scalability and ease of training compared to other diffusion model paradigms for…

Computation and Language · Computer Science 2025-08-19 Tejomay Kishor Padole , Suyash P Awate , Pushpak Bhattacharyya

One-shot voice conversion aims to change the timbre of any source speech to match that of the unseen target speaker with only one speech sample. Existing methods face difficulties in satisfactory speech representation disentanglement and…

Sound · Computer Science 2024-11-26 Pengcheng Li , Jianzong Wang , Xulong Zhang , Yong Zhang , Jing Xiao , Ning Cheng

Non-negative blind source separation (non-negative BSS), which is also referred to as non-negative matrix factorization (NMF), is a very active field in domains as different as astrophysics, audio processing or biomedical signal processing.…

Machine Learning · Statistics 2014-10-27 Jérémy Rapin , Jérôme Bobin , Anthony Larue , Jean-Luc Starck

Matrix factorization techniques, especially Nonnegative Matrix Factorization (NMF), have been widely used for dimensionality reduction and interpretable data representation. However, existing NMF-based methods are inherently single-scale…

Machine Learning · Computer Science 2026-02-27 Jichao Zhang , Ran Miao , Limin Li

Nonnegative matrix factorization (NMF) is a linear dimensionality reduction technique for nonnegative data, with applications such as hyperspectral unmixing and topic modeling. NMF is a difficult problem in general (NP-hard), and its…

Numerical Analysis · Mathematics 2025-11-11 Junjun Pan , Valentin Leplat , Michael Ng , Nicolas Gillis

Leveraging user-provided translation to constrain NMT has practical significance. Existing methods can be classified into two main categories, namely the use of placeholder tags for lexicon words and the use of hard constraints during…

Computation and Language · Computer Science 2019-05-17 Kai Song , Yue Zhang , Heng Yu , Weihua Luo , Kun Wang , Min Zhang

Nowadays, recognition-synthesis-based methods have been quite popular with voice conversion (VC). By introducing linguistics features with good disentangling characters extracted from an automatic speech recognition (ASR) model, the VC…

Sound · Computer Science 2023-05-17 Xintao Zhao , Shuai Wang , Yang Chao , Zhiyong Wu , Helen Meng

Recently, neural machine translation (NMT) has emerged as a powerful alternative to conventional statistical approaches. However, its performance drops considerably in the presence of morphologically rich languages (MRLs). Neural engines…

Computation and Language · Computer Science 2018-04-19 Peyman Passban , Qun Liu , Andy Way

Streaming speech enhancement is a crucial task for real-time applications such as online meetings, smart home appliances, and hearing aids. Deep neural network-based approaches achieve exceptional performance while demanding substantial…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-29 Sunghwan Ahn , Jinmo Han , Beom Jun Woo , Nam Soo Kim

The scarcity of speaker-annotated far-field speech presents a significant challenge in developing high-performance far-field speaker verification (SV) systems. While data augmentation using large-scale near-field speech has been a common…

Sound · Computer Science 2025-01-16 Li Zhang , Jiyao Liu , Lei Xie

Analysis and visualization of an information network can be facilitated better using an appropriate embedding of the network. Network embedding learns a compact low-dimensional vector representation for each node of the network, and uses…

Social and Information Networks · Computer Science 2018-07-05 Sambaran Bandyopadhyay , Harsh Kara , Aswin Kannan , M N Murty

Voice conversion for highly expressive speech is challenging. Current approaches struggle with the balancing between speaker similarity, intelligibility and expressiveness. To address this problem, we propose Expressive-VC, a novel…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-10 Ziqian Ning , Qicong Xie , Pengcheng Zhu , Zhichao Wang , Liumeng Xue , Jixun Yao , Lei Xie , Mengxiao Bi

This paper proposes a delayed subband LSTM network for online monaural (single-channel) speech enhancement. The proposed method is developed in the short time Fourier transform (STFT) domain. Online processing requires frame-by-frame signal…

Sound · Computer Science 2023-12-13 Xiaofei Li , Radu Horaud

The neural language models (NLM) achieve strong generalization capability by learning the dense representation of words and using them to estimate probability distribution function. However, learning the representation of rare words is a…

Computation and Language · Computer Science 2021-01-14 Yerbolat Khassanov , Zhiping Zeng , Van Tung Pham , Haihua Xu , Eng Siong Chng

In this work, we present novel approaches to exploit sentential context for neural machine translation (NMT). Specifically, we first show that a shallow sentential context extracted from the top encoder layer only, can improve translation…

Computation and Language · Computer Science 2019-06-05 Xing Wang , Zhaopeng Tu , Longyue Wang , Shuming Shi

Many datasets are obtained as a resolution trade-off between two adversarial dimensions; for example between the frequency and the temporal resolutions for the spectrogram of an audio signal, and between the number of wavelengths and the…

Signal Processing · Electrical Eng. & Systems 2021-12-20 Valentin Leplat , Nicolas Gillis , Cédric Févotte

Transferring representations from large supervised tasks to downstream tasks has shown promising results in AI fields such as Computer Vision and Natural Language Processing (NLP). In parallel, the recent progress in Machine Translation…

Computation and Language · Computer Science 2018-09-14 Akiko Eriguchi , Melvin Johnson , Orhan Firat , Hideto Kazawa , Wolfgang Macherey

Non-negative matrix factorization (NMF) has become a popular machine learning approach to many problems in text mining, speech and image processing, bio-informatics and seismic data analysis to name a few. In NMF, a matrix of non-negative…

Numerical Analysis · Computer Science 2013-03-19 Hugo Van hamme

Non-negative matrix factorization (NMF) is a dimensionality reduction technique that has shown promise for analyzing noisy data, especially astronomical data. For these datasets, the observed data may contain negative values due to noise…

Instrumentation and Methods for Astrophysics · Physics 2024-10-04 Dylan Green , Stephen Bailey

Recently, document-level neural machine translation (NMT) has become a hot topic in the community of machine translation. Despite its success, most of existing studies ignored the discourse structure information of the input document to be…

Computation and Language · Computer Science 2020-06-23 Junxuan Chen , Xiang Li , Jiarui Zhang , Chulun Zhou , Jianwei Cui , Bin Wang , Jinsong Su