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Predicting drop coalescence based on process parameters is crucial for experiment design in chemical engineering. However, predictive models can suffer from the lack of training data and more importantly, the label imbalance problem. In…

计算工程、金融与科学 · 计算机科学 2023-05-02 Kewei Zhu , Sibo Cheng , Nina Kovalchuk , Mark Simmons , Yi-Ke Guo , Omar K. Matar , Rossella Arcucci

Complex dialogue mappings (CDM), including one-to-many and many-to-one mappings, tend to make dialogue models generate incoherent or dull responses, and modeling these mappings remains a huge challenge for neural dialogue systems. To…

计算与语言 · 计算机科学 2022-12-02 Bin Sun , Shaoxiong Feng , Yiwei Li , Weichao Wang , Fei Mi , Yitong Li , Kan Li

Neural networks are used for channel decoding, channel detection, channel evaluation, and resource management in multi-input and multi-output (MIMO) wireless communication systems. In this paper, we consider the problem of finding precoding…

信号处理 · 电气工程与系统科学 2022-05-06 Evgeny Bobrov , Alexander Markov , Sviatoslav Panchenko , Dmitry Vetrov

Variational autoencoders (VAE) are powerful generative models that learn the latent representations of input data as random variables. Recent studies show that VAE can flexibly learn the complex temporal dynamics of time series and achieve…

机器学习 · 计算机科学 2023-11-14 Borui Cai , Shuiqiao Yang , Longxiang Gao , Yong Xiang

The dynamical variational autoencoders (DVAEs) are a family of latent-variable deep generative models that extends the VAE to model a sequence of observed data and a corresponding sequence of latent vectors. In almost all the DVAEs of the…

音频与语音处理 · 电气工程与系统科学 2023-05-11 Xiaoyu Lin , Xiaoyu Bie , Simon Leglaive , Laurent Girin , Xavier Alameda-Pineda

In this paper, we propose a Conditioned Variational Autoencoder (C-VAE) for constrained top-N item recommendation where the recommended items must satisfy a given condition. The proposed model architecture is similar to a standard VAE in…

机器学习 · 计算机科学 2020-05-05 Tommaso Carraro , Mirko Polato , Fabio Aiolli

Diffusion probabilistic models have been shown to generate state-of-the-art results on several competitive image synthesis benchmarks but lack a low-dimensional, interpretable latent space, and are slow at generation. On the other hand,…

机器学习 · 计算机科学 2022-11-30 Kushagra Pandey , Avideep Mukherjee , Piyush Rai , Abhishek Kumar

As a widely recognized approach to deep generative modeling, Variational Auto-Encoders (VAEs) still face challenges with the quality of generated images, often presenting noticeable blurriness. This issue stems from the unrealistic…

机器学习 · 计算机科学 2023-05-22 Georgios Batzolis , Jan Stanczuk , Carola-Bibiane Schönlieb

We propose to utilize a variational autoencoder (VAE) for data-driven channel estimation. The underlying true and unknown channel distribution is modeled by the VAE as a conditional Gaussian distribution in a novel way, parameterized by the…

信号处理 · 电气工程与系统科学 2023-04-07 Michael Baur , Benedikt Fesl , Michael Koller , Wolfgang Utschick

Deep generative neural networks, such as Variational AutoEncoders (VAEs), offer an opportunity to better understand and control language models from the perspective of sentence-level latent spaces. To combine the controllability of VAE…

计算与语言 · 计算机科学 2023-12-21 Yingji Zhang , Danilo S. Carvalho , Ian Pratt-Hartmann , André Freitas

We introduce the variational graph auto-encoder (VGAE), a framework for unsupervised learning on graph-structured data based on the variational auto-encoder (VAE). This model makes use of latent variables and is capable of learning…

机器学习 · 统计学 2016-11-23 Thomas N. Kipf , Max Welling

Predicting future frames for a video sequence is a challenging generative modeling task. Promising approaches include probabilistic latent variable models such as the Variational Auto-Encoder. While VAEs can handle uncertainty and model…

计算机视觉与模式识别 · 计算机科学 2019-04-30 Lluis Castrejon , Nicolas Ballas , Aaron Courville

Variational autoencoders (VAEs) are essential tools in end-to-end representation learning. However, the sequential text generation common pitfall with VAEs is that the model tends to ignore latent variables with a strong auto-regressive…

机器学习 · 计算机科学 2021-02-26 Yang Zhao , Ping Yu , Suchismit Mahapatra , Qinliang Su , Changyou Chen

Deep generative models applied to audio have improved by a large margin the state-of-the-art in many speech and music related tasks. However, as raw waveform modelling remains an inherently difficult task, audio generative models are either…

机器学习 · 计算机科学 2021-12-16 Antoine Caillon , Philippe Esling

This paper provides a comprehensive analysis of variational inference in latent variable models for survival analysis, emphasizing the distinctive challenges associated with applying variational methods to survival data. We identify a…

机器学习 · 计算机科学 2025-06-05 Chuanhui Liu , Xiao Wang

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

Single-cell RNA sequencing (scRNA-seq) has revealed complex cellular heterogeneity, but recent studies emphasize that understanding biological function also requires modeling cell-cell communication (CCC), the signaling interactions…

机器学习 · 计算机科学 2025-12-29 Cong Qi , Yeqing Chen , Zhi Wei

Vision Transformer (ViT) based autoencoders often underutilize the global Class token and employ static attention mechanisms, limiting both generative control and optimization efficiency. This paper introduces ViTCAE, a framework that…

机器学习 · 计算机科学 2025-09-23 Vahid Jebraeeli , Hamid Krim , Derya Cansever

Pedestrian trajectory prediction is the key technology in many applications for providing insights into human behavior and anticipating human future motions. Most existing empirical models are explicitly formulated by observed human…

计算机视觉与模式识别 · 计算机科学 2024-02-28 Wei Xiang , Haoteng Yin , He Wang , Xiaogang Jin

Medical image segmentation is inherently an ambiguous task due to factors such as partial volumes and variations in anatomical definitions. While in most cases the segmentation uncertainty is around the border of structures of interest,…

机器学习 · 统计学 2020-08-05 Raghavendra Selvan , Frederik Faye , Jon Middleton , Akshay Pai