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For fine-grained generation and recognition tasks such as minimally-supervised text-to-speech (TTS), voice conversion (VC), and automatic speech recognition (ASR), the intermediate representations extracted from speech should serve as a…

音频与语音处理 · 电气工程与系统科学 2023-12-19 Chunyu Qiang , Hao Li , Yixin Tian , Ruibo Fu , Tao Wang , Longbiao Wang , Jianwu Dang

Self-supervised speech representations have been shown to be effective in a variety of speech applications. However, existing representation learning methods generally rely on the autoregressive model and/or observed global dependencies…

计算与语言 · 计算机科学 2020-11-03 Alexander H. Liu , Yu-An Chung , James Glass

The success of deep learning comes from its ability to capture the hierarchical structure of data by learning high-level representations defined in terms of low-level ones. In this paper we explore self-supervised learning of hierarchical…

Contrastive predictive coding (CPC) aims to learn representations of speech by distinguishing future observations from a set of negative examples. Previous work has shown that linear classifiers trained on CPC features can accurately…

音频与语音处理 · 电气工程与系统科学 2021-08-03 Benjamin van Niekerk , Leanne Nortje , Matthew Baas , Herman Kamper

Many speech processing tasks involve measuring the acoustic similarity between speech segments. Acoustic word embeddings (AWE) allow for efficient comparisons by mapping speech segments of arbitrary duration to fixed-dimensional vectors.…

计算与语言 · 计算机科学 2020-12-15 Lisa van Staden , Herman Kamper

Self-supervised learning has become an increasingly important paradigm in the domain of machine intelligence. Furthermore, evidence for self-supervised adaptation, such as contrastive formulations, has emerged in recent computational…

神经与进化计算 · 计算机科学 2025-03-31 Alexander Ororbia , Karl Friston , Rajesh P. N. Rao

We present a bidirectional unsupervised model pre-training (UPT) method and apply it to children's automatic speech recognition (ASR). An obstacle to improving child ASR is the scarcity of child speech databases. A common approach to…

音频与语音处理 · 电气工程与系统科学 2021-02-16 Ruchao Fan , Amber Afshan , Abeer Alwan

Autoregressive Predictive Coding (APC), as a self-supervised objective, has enjoyed success in learning representations from large amounts of unlabeled data, and the learned representations are rich for many downstream tasks. However, the…

音频与语音处理 · 电气工程与系统科学 2020-05-19 Yu-An Chung , Hao Tang , James Glass

Pseudo-labeling is the most adopted method for pre-training automatic speech recognition (ASR) models. However, its performance suffers from the supervised teacher model's degrading quality in low-resource setups and under domain transfer.…

计算与语言 · 计算机科学 2021-03-10 Alex Xiao , Christian Fuegen , Abdelrahman Mohamed

This paper presents a new supervised representation learning framework, namely structured probabilistic coding (SPC), to learn compact and informative representations from input related to the target task. SPC is an encoder-only…

计算与语言 · 计算机科学 2024-05-03 Dou Hu , Lingwei Wei , Yaxin Liu , Wei Zhou , Songlin Hu

A large amount of recent research has the far-reaching goal of finding training methods for deep neural networks that can serve as alternatives to backpropagation (BP). A prominent example is predictive coding (PC), which is a…

机器学习 · 计算机科学 2022-11-08 Luca Pinchetti , Tommaso Salvatori , Yordan Yordanov , Beren Millidge , Yuhang Song , Thomas Lukasiewicz

Building a good speech recognition system usually requires large amounts of transcribed data, which is expensive to collect. To tackle this problem, many unsupervised pre-training methods have been proposed. Among these methods, Masked…

音频与语音处理 · 电气工程与系统科学 2020-06-24 Dongwei Jiang , Wubo Li , Ruixiong Zhang , Miao Cao , Ne Luo , Yang Han , Wei Zou , Xiangang Li

Speech recognition technologies are gaining enormous popularity in various industrial applications. However, building a good speech recognition system usually requires large amounts of transcribed data, which is expensive to collect. To…

计算与语言 · 计算机科学 2019-11-01 Dongwei Jiang , Xiaoning Lei , Wubo Li , Ne Luo , Yuxuan Hu , Wei Zou , Xiangang Li

Weakly Supervised Semantic Segmentation (WSSS) with image-level labels has gained attention for its cost-effectiveness. Most existing methods emphasize inter-class separation, often neglecting the shared semantics among related categories…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Wangyu Wu , Zhenhong Chen , Xiaowen Ma , Wenqiao Zhang , Xianglin Qiu , Siqi Song , Xiaowei Huang , Fei Ma , Jimin Xiao

End-to-end Automatic Speech Recognition (ASR) models are usually trained to optimize the loss of the whole token sequence, while neglecting explicit phonemic-granularity supervision. This could result in recognition errors due to…

音频与语音处理 · 电气工程与系统科学 2022-06-22 Li Fu , Xiaoxiao Li , Runyu Wang , Lu Fan , Zhengchen Zhang , Meng Chen , Youzheng Wu , Xiaodong He

This paper proposes an adaptation method for end-to-end speech recognition. In this method, multiple automatic speech recognition (ASR) 1-best hypotheses are integrated in the computation of the connectionist temporal classification (CTC)…

计算与语言 · 计算机科学 2021-04-01 Cong-Thanh Do , Rama Doddipatla , Thomas Hain

Convolutional Sparse Coding (CSC) is a well-established image representation model especially suited for image restoration tasks. In this work, we extend the applicability of this model by proposing a supervised approach to convolutional…

计算机视觉与模式识别 · 计算机科学 2018-04-10 Lama Affara , Bernard Ghanem , Peter Wonka

It has been generally assumed in the automatic speech recognition (ASR) literature that it is better for models to have access to wider context windows. Yet, many of the potential reasons this might be true in the supervised setting do not…

计算与语言 · 计算机科学 2024-10-28 Sean Robertson , Ewan Dunbar

Effective protein representation learning is crucial for predicting protein functions. Traditional methods often pretrain protein language models on large, unlabeled amino acid sequences, followed by finetuning on labeled data. While…

生物大分子 · 定量生物学 2024-09-05 Jiangbin Zheng , Stan Z. Li

Predicting and reasoning about the future lie at the heart of many time-series questions. For example, goal-conditioned reinforcement learning can be viewed as learning representations to predict which states are likely to be visited in the…

机器学习 · 计算机科学 2025-10-10 Chongyi Zheng , Ruslan Salakhutdinov , Benjamin Eysenbach