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The presence of a corresponding talking face has been shown to significantly improve speech intelligibility in noisy conditions and for hearing impaired population. In this paper, we present a system that can generate landmark points of a…

Computer Vision and Pattern Recognition · Computer Science 2018-04-24 Sefik Emre Eskimez , Ross K Maddox , Chenliang Xu , Zhiyao Duan

Many factors influence speech yielding different renditions of a given sentence. Generative models, such as variational autoencoders (VAEs), capture this variability and allow multiple renditions of the same sentence via sampling. The…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-21 Penny Karanasou , Sri Karlapati , Alexis Moinet , Arnaud Joly , Ammar Abbas , Simon Slangen , Jaime Lorenzo Trueba , Thomas Drugman

This paper presents an emotion-regularized conditional variational autoencoder (Emo-CVAE) model for generating emotional conversation responses. In conventional CVAE-based emotional response generation, emotion labels are simply used as…

Computation and Language · Computer Science 2021-04-20 Yu-Ping Ruan , Zhen-Hua Ling

Speech-to-face generation is an intriguing area of research that focuses on generating realistic facial images based on a speaker's audio speech. However, state-of-the-art methods employing GAN-based architectures lack stability and cannot…

Computer Vision and Pattern Recognition · Computer Science 2023-10-06 Jinting Wang , Li Liu , Jun Wang , Hei Victor Cheng

How can we efficiently propagate uncertainty in a latent state representation with recurrent neural networks? This paper introduces stochastic recurrent neural networks which glue a deterministic recurrent neural network and a state space…

Machine Learning · Statistics 2016-11-15 Marco Fraccaro , Søren Kaae Sønderby , Ulrich Paquet , Ole Winther

The ability to accurately model random fields plays a critical role in science and engineering for problems involving uncertain, spatially-varying quantities such as heterogeneous material properties and turbulent flows. Deep generative…

Connectionist temporal classification (CTC) is commonly adopted for sequence modeling tasks like speech recognition, where it is necessary to preserve order between the input and target sequences. However, CTC is only applied to…

Machine Learning · Computer Science 2023-12-18 Zheng Nan , Ting Dang , Vidhyasaharan Sethu , Beena Ahmed

The goal of this paper is to provide a new perspective on speech modeling by incorporating perceptual invariances such as amplitude scaling and temporal shifts. Conventional generative formulations often treat each dataset sample as a fixed…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-24 Doyeop Kwak , Youngjoon Jang , Joon Son Chung

The variational autoencoder (VAE) framework is a popular option for training unsupervised generative models, featuring ease of training and latent representation of data. The objective function of VAE does not guarantee to achieve the…

Machine Learning · Computer Science 2019-04-25 Jason Chou

Traditional speech enhancement techniques modify the magnitude of a speech in time-frequency domain, and use the phase of a noisy speech to resynthesize a time domain speech. This work proposes a complex-valued Gaussian process latent…

Sound · Computer Science 2017-01-02 Sih-Huei Chen , Yuan-Shan Lee , Jia-Ching Wang

Conditional variational models, using either continuous or discrete latent variables, are powerful for open-domain dialogue response generation. However, previous works show that continuous latent variables tend to reduce the coherence of…

Computation and Language · Computer Science 2022-12-05 Bin Sun , Yitong Li , Fei Mi , Weichao Wang , Yiwei Li , Kan Li

As large language models (LLMs) increasingly tackle complex reasoning tasks, test-time scaling has become critical for enhancing capabilities. However, in agentic scenarios with frequent tool calls, the traditional generation-length-based…

Computation and Language · Computer Science 2026-01-26 Yichuan Ma , Linyang Li , Yongkang chen , Peiji Li , Xiaozhe Li , Qipeng Guo , Dahua Lin , Kai Chen

Diffusion-based generative models have demonstrated a capacity for perceptually impressive synthesis, but can they also be great likelihood-based models? We answer this in the affirmative, and introduce a family of diffusion-based…

Machine Learning · Computer Science 2023-04-17 Diederik P. Kingma , Tim Salimans , Ben Poole , Jonathan Ho

Articulation, emotion, and personality play strong roles in the orofacial movements. To improve the naturalness and expressiveness of virtual agents (VAs), it is important that we carefully model the complex interplay between these factors.…

Human-Computer Interaction · Computer Science 2023-05-15 Najmeh Sadoughi , Carlos Busso

In recent years, neural vocoders have surpassed classical speech generation approaches in naturalness and perceptual quality of the synthesized speech. Computationally heavy models like WaveNet and WaveGlow achieve best results, while…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-15 Ahmed Mustafa , Nicola Pia , Guillaume Fuchs

Designing video prediction models that account for the inherent uncertainty of the future is challenging. Most works in the literature are based on stochastic image-autoregressive recurrent networks, which raises several performance and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-10 Jean-Yves Franceschi , Edouard Delasalles , Mickaël Chen , Sylvain Lamprier , Patrick Gallinari

Latent variable models (LVMs) represent observed variables by parameterized functions of latent variables. Prominent examples of LVMs for unsupervised learning are probabilistic PCA or probabilistic SC which both assume a weighted linear…

Machine Learning · Computer Science 2023-12-18 Hamid Mousavi , Jakob Drefs , Florian Hirschberger , Jörg Lücke

Variational autoencoders (VAEs) combine latent variables with amortized variational inference, whose optimization usually converges into a trivial local optimum termed posterior collapse, especially in text modeling. By tracking the…

Computation and Language · Computer Science 2020-04-21 Chen Wu , Prince Zizhuang Wang , William Yang Wang

Despite the remarkable success of Vision-Language Models (VLMs), their performance on a range of complex visual tasks is often hindered by a "visual processing bottleneck": a propensity to lose grounding in visual evidence and exhibit a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Xinlei Yu , Chengming Xu , Guibin Zhang , Zhangquan Chen , Yudong Zhang , Yongbo He , Peng-Tao Jiang , Jiangning Zhang , Xiaobin Hu , Shuicheng Yan

Deep neural networks with discrete latent variables offer the promise of better symbolic reasoning, and learning abstractions that are more useful to new tasks. There has been a surge in interest in discrete latent variable models, however,…

Machine Learning · Computer Science 2018-07-23 Aurko Roy , Ashish Vaswani , Arvind Neelakantan , Niki Parmar