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Density estimation, compression and data generation are crucial tasks in artificial intelligence. Variational Auto-Encoders (VAEs) constitute a single framework to achieve these goals. Here, we present a novel class of generative models,…

机器学习 · 统计学 2021-07-07 Ioannis Gatopoulos , Jakub M. Tomczak

Most of the prevalent approaches in speech prosody modeling rely on learning global style representations in a continuous latent space which encode and transfer the attributes of reference speech. However, recent work on neural codecs which…

Document network embedding aims at learning representations for a structured text corpus i.e. when documents are linked to each other. Recent algorithms extend network embedding approaches by incorporating the text content associated with…

机器学习 · 计算机科学 2020-01-13 Robin Brochier , Adrien Guille , Julien Velcin

Although autoregressive models have achieved promising results on image generation, their unidirectional generation process prevents the resultant images from fully reflecting global contexts. To address the issue, we propose an effective…

计算机视觉与模式识别 · 计算机科学 2022-06-10 Doyup Lee , Chiheon Kim , Saehoon Kim , Minsu Cho , Wook-Shin Han

Variational Auto-Encoder (VAE) has become the de-facto learning paradigm in achieving representation learning and generation for natural language at the same time. Nevertheless, existing VAE-based language models either employ elementary…

计算与语言 · 计算机科学 2022-11-22 Haoqin Tu , Zhongliang Yang , Jinshuai Yang , Yongfeng Huang

An important task in quantum generative machine learning is to model the probability distribution of measurements of many-body quantum systems. Classical generative models, such as generative adversarial networks (GANs) and variational…

量子物理 · 物理学 2023-05-19 Anantha Rao , Dhiraj Madan , Anupama Ray , Dhinakaran Vinayagamurthy , M. S. Santhanam

In this paper we introduce learnable lattice vector quantization and demonstrate its effectiveness for learning discrete representations. Our method, termed LL-VQ-VAE, replaces the vector quantization layer in VQ-VAE with lattice-based…

机器学习 · 计算机科学 2023-10-17 Ahmed Khalil , Robert Piechocki , Raul Santos-Rodriguez

Recent work in synthetic data generation in the time-series domain has focused on the use of Generative Adversarial Networks. We propose a novel architecture for synthetically generating time-series data with the use of Variational…

机器学习 · 计算机科学 2021-12-08 Abhyuday Desai , Cynthia Freeman , Zuhui Wang , Ian Beaver

Task specific fine-tuning of a pre-trained neural language model using a custom softmax output layer is the de facto approach of late when dealing with document classification problems. This technique is not adequate when labeled examples…

计算与语言 · 计算机科学 2020-10-27 Natraj Raman , Armineh Nourbakhsh , Sameena Shah , Manuela Veloso

Emerging Denoising Diffusion Probabilistic Models (DDPM) have become increasingly utilised because of promising results they have achieved in diverse generative tasks with continuous data, such as image and sound synthesis. Nonetheless, the…

声音 · 计算机科学 2024-09-05 Jincheng Zhang , György Fazekas , Charalampos Saitis

We investigate a fully Latent AutoRegressive scheme based on a Gaussian Process (GP) integrated into a Variational Autoencoder (VAE). In this setting, sequential dynamics are transferred from the observation space to a continuous latent…

机器学习 · 计算机科学 2025-12-16 Yves Ruffenach

Recent work on Event Extraction has reframed the task as Question Answering (QA), with promising results. The advantage of this approach is that it addresses the error propagation issue found in traditional token-based classification…

计算与语言 · 计算机科学 2023-07-13 Di Lu , Shihao Ran , Joel Tetreault , Alejandro Jaimes

Traditional computational authorship attribution describes a classification task in a closed-set scenario. Given a finite set of candidate authors and corresponding labeled texts, the objective is to determine which of the authors has…

机器学习 · 计算机科学 2020-05-29 Benedikt Boenninghoff , Steffen Zeiler , Robert M. Nickel , Dorothea Kolossa

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…

计算与语言 · 计算机科学 2022-03-07 Xiaoyu Shen

Variational Auto-Encoders (VAEs) are capable of learning latent representations for high dimensional data. However, due to the i.i.d. assumption, VAEs only optimize the singleton variational distributions and fail to account for the…

机器学习 · 计算机科学 2020-04-20 Da Tang , Dawen Liang , Tony Jebara , Nicholas Ruozzi

Vector Quantized Variational AutoEncoders (VQ-VAEs) are designed to compress a continuous input to a discrete latent space and reconstruct it with minimal distortion. They operate by maintaining a set of vectors -- often referred to as the…

Recently there is an increasing interest in scene generation within the research community. However, models used for generating scene layouts from textual description largely ignore plausible visual variations within the structure dictated…

计算机视觉与模式识别 · 计算机科学 2021-06-02 Akash Abdu Jyothi , Thibaut Durand , Jiawei He , Leonid Sigal , Greg Mori

We propose an algorithm, guided variational autoencoder (Guided-VAE), that is able to learn a controllable generative model by performing latent representation disentanglement learning. The learning objective is achieved by providing…

计算机视觉与模式识别 · 计算机科学 2020-04-06 Zheng Ding , Yifan Xu , Weijian Xu , Gaurav Parmar , Yang Yang , Max Welling , Zhuowen Tu

With the continued proliferation of Large Language Model (LLM) based chatbots, there is a growing demand for generating responses that are not only linguistically fluent but also consistently aligned with persona-specific traits in…

计算与语言 · 计算机科学 2025-12-12 Qi Lin , Weikai Xu , Lisi Chen , Bin Dai

Variational autoencoders (VAEs) are a standard framework for inducing latent variable models that have been shown effective in learning text representations as well as in text generation. The key challenge with using VAEs is the {\it…

机器学习 · 计算机科学 2020-05-01 Serhii Havrylov , Ivan Titov