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Bayesian neural networks (BNNs) demonstrate promising success in improving the robustness and uncertainty quantification of modern deep learning. However, they generally struggle with underfitting at scale and parameter efficiency. On the…

Unseen data can degrade performance of deep neural net acoustic models. To cope with unseen data, adaptation techniques are deployed. For unlabeled unseen data, one must generate some hypothesis given an existing model, which is used as the…

计算与语言 · 计算机科学 2018-02-21 Vikramjit Mitra , Horacio Franco

When learning a hidden Markov model (HMM), sequen- tial observations can often be complemented by real-valued summary response variables generated from the path of hid- den states. Such settings arise in numerous domains, includ- ing many…

机器学习 · 统计学 2015-12-17 Yizhe Zhang , Ricardo Henao , Lawrence Carin , Jianling Zhong , Alexander J. Hartemink

In this study, we aim to explore efficient tuning methods for speech self-supervised learning. Recent studies show that self-supervised learning (SSL) can learn powerful representations for different speech tasks. However, fine-tuning…

音频与语音处理 · 电气工程与系统科学 2023-01-31 Zih-Ching Chen , Chin-Lun Fu , Chih-Ying Liu , Shang-Wen Li , Hung-yi Lee

Traditional hidden Markov models have been a useful tool to understand and model stochastic dynamic data; in the case of non-Gaussian data, models such as mixture of Gaussian hidden Markov models can be used. However, these suffer from the…

机器学习 · 统计学 2023-05-16 Carlos Puerto-Santana , Concha Bielza , Pedro Larrañaga , Gustav Eje Henter

Maximum a posteriori (MAP) inference over discrete Markov random fields is a fundamental task spanning a wide spectrum of real-world applications, which is known to be NP-hard for general graphs. In this paper, we propose a novel…

机器学习 · 计算机科学 2015-01-06 Qixing Huang , Yuxin Chen , Leonidas Guibas

Since the early days of digital communication, hidden Markov models (HMMs) have now been also routinely used in speech recognition, processing of natural languages, images, and in bioinformatics. In an HMM $(X_i,Y_i)_{i\ge 1}$, observations…

统计理论 · 数学 2012-07-24 J. Lember , A. Koloydenko

Machine learning (ML) tools such as encoder-decoder deep convolutional neural networks (CNN) are able to extract relationships between inputs and outputs of large complex systems directly from raw data. For time-varying systems the…

加速器物理 · 物理学 2021-03-25 Alexander Scheinker , Frederick Cropp , Sergio Paiagua , Daniele Filippetto

It is of some interest to understand how statistically based mechanisms for signal processing might be integrated with biologically motivated mechanisms such as neural networks. This paper explores a novel hybrid approach for classifying…

神经与进化计算 · 计算机科学 2016-07-22 Amirhossein Tavanaei , Anthony S Maida

Ability of deep networks to extract high level features and of recurrent networks to perform time-series inference have been studied. In view of universality of one hidden layer network at approximating functions under weak constraints, the…

神经与进化计算 · 计算机科学 2014-12-19 Sharat C. Prasad , Piyush Prasad

When fine-tuning Deep Neural Networks (DNNs) to new data, DNNs are prone to overwriting network parameters required for task-specific functionality on previously learned tasks, resulting in a loss of performance on those tasks. We propose…

机器学习 · 计算机科学 2025-01-22 Christopher Angelini , Nidhal Bouaynaya

In recent years, single image super-resolution (SR) methods based on deep convolutional neural networks (CNNs) have made significant progress. However, due to the non-adaptive nature of the convolution operation, they cannot adapt to…

计算机视觉与模式识别 · 计算机科学 2020-03-30 Jun-Hyuk Kim , Jun-Ho Choi , Manri Cheon , Jong-Seok Lee

Parameterizable machine learning (ML) accelerators are the product of recent breakthroughs in ML. To fully enable their design space exploration (DSE), we propose a physical-design-driven, learning-based prediction framework for…

Industrial processes generate a massive amount of monitoring data that can be exploited to uncover hidden time losses in the system. This can be used to enhance the accuracy of maintenance policies and increase the effectiveness of the…

应用统计 · 统计学 2025-08-27 Fernando Miguelez , Josu Doncel , Maria Dolores Ugarte

In this paper we study the probabilistic properties of the posteriors in a speech recognition system that uses a deep neural network (DNN) for acoustic modeling. We do this by reducing Kaldi's DNN shared pdf-id posteriors to phone…

机器学习 · 统计学 2016-06-15 David A. van Leeuwen , Joost van Doremalen

We propose a multi-objective framework to learn both secondary targets not directly related to the intended task of speech enhancement (SE) and the primary target of the clean log-power spectra (LPS) features to be used directly for…

声音 · 计算机科学 2017-03-22 Yong Xu , Jun Du , Zhen Huang , Li-Rong Dai , Chin-Hui Lee

We propose the first method to adaptively modify the duration of a given speech signal. Our approach uses a Bayesian framework to define a latent attention map that links frames of the input and target utterances. We train a masked…

音频与语音处理 · 电气工程与系统科学 2021-07-13 Ravi Shankar , Archana Venkataraman

Learning-based model predictive control (MPC) is an approach designed to reduce the computational cost of MPC. In this paper, a constrained deep neural network (DNN) design is proposed to learn MPC policy for nonlinear systems. Using…

系统与控制 · 电气工程与系统科学 2023-03-30 Farshid Asadi

Estimating time-frequency domain masks for speech enhancement using deep learning approaches has recently become a popular field of research. In this paper, we propose a mask-based speech enhancement framework by using concatenated…

音频与语音处理 · 电气工程与系统科学 2018-10-29 Ziyi Xu , Maximilian Strake , Tim Fingscheidt

Fine-tuning of self-supervised models is a powerful transfer learning method in a variety of fields, including speech processing, since it can utilize generic feature representations obtained from large amounts of unlabeled data.…

多媒体 · 计算机科学 2022-12-07 Shinta Otake , Rei Kawakami , Nakamasa Inoue