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In this paper we propose a novel model for unconditional audio generation based on generating one audio sample at a time. We show that our model, which profits from combining memory-less modules, namely autoregressive multilayer…

Recent deep learning models have shown improving results to natural language generation (NLG) irrespective of providing sufficient annotated data. However, a modest training data may harm such models performance. Thus, how to build a…

Computation and Language · Computer Science 2018-11-13 Van-Khanh Tran , Le-Minh Nguyen

Speech enhancement in hearing aids remains a difficult task in nonstationary acoustic environments, mainly because current signal processing algorithms rely on fixed, manually tuned parameters that cannot adapt in situ to different users or…

Diffusion models have shown a great ability at bridging the performance gap between predictive and generative approaches for speech enhancement. We have shown that they may even outperform their predictive counterparts for non-additive…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-13 Jean-Marie Lemercier , Julius Richter , Simon Welker , Timo Gerkmann

We present a probabilistic deep learning methodology that enables the construction of predictive data-driven surrogates for stochastic systems. Leveraging recent advances in variational inference with implicit distributions, we put forth a…

Machine Learning · Statistics 2019-01-16 Yibo Yang , Paris Perdikaris

Conditional image modeling based on textual descriptions is a relatively new domain in unsupervised learning. Previous approaches use a latent variable model and generative adversarial networks. While the formers are approximated by using…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Tehseen Zia , Shahan Arif , Shakeeb Murtaza , Mirza Ahsan Ullah

Neural text generation models conditioning on given input (e.g. machine translation and image captioning) are usually trained by maximum likelihood estimation of target text. However, the trained models suffer from various types of errors…

Computation and Language · Computer Science 2020-12-29 Keisuke Shirai , Kazuma Hashimoto , Akiko Eriguchi , Takashi Ninomiya , Shinsuke Mori

In this paper, we propose a new and unified approach for nonparametric regression and conditional distribution learning. Our approach simultaneously estimates a regression function and a conditional generator using a generative learning…

Machine Learning · Statistics 2023-06-28 Shanshan Song , Tong Wang , Guohao Shen , Yuanyuan Lin , Jian Huang

The dominant language modeling paradigm handles text as a sequence of discrete tokens. While that approach can capture the latent structure of the text, it is inherently constrained to sequential dynamics for text generation. We propose a…

Computation and Language · Computer Science 2020-11-02 Noe Casas , José A. R. Fonollosa , Marta R. Costa-jussà

Semantic parsing using sequence-to-sequence models allows parsing of deeper representations compared to traditional word tagging based models. In spite of these advantages, widespread adoption of these models for real-time conversational…

Computation and Language · Computer Science 2021-04-13 Arun Babu , Akshat Shrivastava , Armen Aghajanyan , Ahmed Aly , Angela Fan , Marjan Ghazvininejad

Deep latent variable models have been shown to facilitate the response generation for open-domain dialog systems. However, these latent variables are highly randomized, leading to uncontrollable generated responses. In this paper, we…

Computation and Language · Computer Science 2017-07-07 Xiaoyu Shen , Hui Su , Yanran Li , Wenjie Li , Shuzi Niu , Yang Zhao , Akiko Aizawa , Guoping Long

Diffusion models have been successfully adapted to text generation tasks by mapping the discrete text into the continuous space. However, there exist nonnegligible gaps between training and inference, owing to the absence of the forward…

Computation and Language · Computer Science 2023-05-09 Zecheng Tang , Pinzheng Wang , Keyan Zhou , Juntao Li , Ziqiang Cao , Min Zhang

Text generation aims to produce human-like natural language output for down-stream tasks. It covers a wide range of applications like machine translation, document summarization, dialogue generation and so on. Recently deep neural…

Computation and Language · Computer Science 2022-03-07 Xiaoyu Shen

A growing body of work studies how to answer a question or verify a claim by generating a natural language "proof": a chain of deductive inferences yielding the answer based on a set of premises. However, these methods can only make sound…

Computation and Language · Computer Science 2022-11-02 Zayne Sprague , Kaj Bostrom , Swarat Chaudhuri , Greg Durrett

The development of high-dimensional generative models has recently gained a great surge of interest with the introduction of variational auto-encoders and generative adversarial neural networks. Different variants have been proposed where…

Computer Vision and Pattern Recognition · Computer Science 2019-04-18 Mickaël Chen , Ludovic Denoyer , Thierry Artières

This paper proposes a hierarchical generative model with a multi-grained latent variable to synthesize expressive speech. In recent years, fine-grained latent variables are introduced into the text-to-speech synthesis that enable the fine…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-28 Yukiya Hono , Kazuna Tsuboi , Kei Sawada , Kei Hashimoto , Keiichiro Oura , Yoshihiko Nankaku , Keiichi Tokuda

Automatic generation of paraphrases from a given sentence is an important yet challenging task in natural language processing (NLP), and plays a key role in a number of applications such as question answering, search, and dialogue. In this…

Computation and Language · Computer Science 2018-08-24 Zichao Li , Xin Jiang , Lifeng Shang , Hang Li

The performance of adversarial dialogue generation models relies on the quality of the reward signal produced by the discriminator. The reward signal from a poor discriminator can be very sparse and unstable, which may lead the generator to…

Computation and Language · Computer Science 2018-12-11 Ziming Li , Julia Kiseleva , Maarten de Rijke

Generating high quality texts with high diversity is important for many NLG applications, but current methods mostly focus on building deterministic models to generate higher quality texts and do not provide many options for promoting…

Computation and Language · Computer Science 2022-04-05 Wanyu Du , Jianqiao Zhao , Liwei Wang , Yangfeng Ji

Today's probabilistic language generators fall short when it comes to producing coherent and fluent text despite the fact that the underlying models perform well under standard metrics, e.g., perplexity. This discrepancy has puzzled the…

Computation and Language · Computer Science 2025-06-06 Clara Meister , Tiago Pimentel , Gian Wiher , Ryan Cotterell