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Variational autoencoders (VAEs) are powerful generative models with the salient ability to perform inference. Here, we introduce a quantum variational autoencoder (QVAE): a VAE whose latent generative process is implemented as a quantum…

From large language models to multi-modal agents, Generative Artificial Intelligence (AI) now underpins state-of-the-art systems. Despite their varied architectures, many share a common foundation in probabilistic latent variable models…

Machine Learning · Computer Science 2025-08-26 Tianhua Chen

Recent works have demonstrated the effectiveness of adapting pre-trained language models (LMs) for forecasting time series in the low-data regime. We build upon these findings by analyzing the effective transfer from language models to time…

Computation and Language · Computer Science 2025-06-30 Roland Riachi , Kashif Rasul , Arjun Ashok , Prateek Humane , Alexis Roger , Andrew R. Williams , Yuriy Nevmyvaka , Irina Rish

Despite recent advances in understanding and leveraging long-range conversational memory, existing benchmarks still lack systematic evaluation of large language models(LLMs) across diverse memory dimensions, particularly in multi-session…

Computation and Language · Computer Science 2026-01-08 Ye Shen , Dun Pei , Yiqiu Guo , Junying Wang , Yijin Guo , Zicheng Zhang , Qi Jia , Jun Zhou , Guangtao Zhai

Large Language Models (LLMs) have shown strong potential as conversational agents. Yet, their effectiveness remains limited by deficiencies in robust long-term memory, particularly in complex, long-term web-based services such as online…

Computation and Language · Computer Science 2026-02-03 Tiantian Chen , Jiaqi Lu , Ying Shen , Lin Zhang

In this paper, we introduce a simple and novel framework for one-shot audio-driven talking head generation. Unlike prior works that require additional driving sources for controlled synthesis in a deterministic manner, we instead…

Graphics · Computer Science 2022-12-09 Zhentao Yu , Zixin Yin , Deyu Zhou , Duomin Wang , Finn Wong , Baoyuan Wang

Vision-language (VL) models, pretrained on colossal image-text datasets, have attained broad VL competence that is difficult to evaluate. A common belief is that a small number of VL skills underlie the variety of VL tests. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-04 Anthony Meng Huat Tiong , Junqi Zhao , Boyang Li , Junnan Li , Steven C. H. Hoi , Caiming Xiong

Recently, a variational autoencoder (VAE)-based single-channel speech enhancement system using Bayesian permutation training has been proposed, which uses two pretrained VAEs to obtain latent representations for speech and noise. Based on…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-03 Jiatong Li , Simon Doclo

While human evaluation is the most reliable metric for evaluating speech generation systems, it is generally costly and time-consuming. Previous studies on automatic speech quality assessment address the problem by predicting human…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-12 Soumi Maiti , Yifan Peng , Takaaki Saeki , Shinji Watanabe

For conversational large-vocabulary continuous speech recognition (LVCSR) tasks, up to about two thousand hours of audio is commonly used to train state of the art models. Collection of labeled conversational audio however, is prohibitively…

Computation and Language · Computer Science 2017-05-30 Shane Walker , Morten Pedersen , Iroro Orife , Jason Flaks

Large Language Models (LLMs) are increasingly excelling and outpacing human performance on many tasks. However, to improve LLM reasoning, researchers either rely on ad-hoc generated datasets or formal mathematical proof systems such as the…

Artificial Intelligence · Computer Science 2025-11-03 Nikolaus Holzer , William Fishell , Baishakhi Ray , Mark Santolucito

A rich supply of data and innovative algorithms have made data-driven modeling a popular technique in modern industry. Among various data-driven methods, latent variable models (LVMs) and their counterparts account for a major share and…

Systems and Control · Electrical Eng. & Systems 2022-10-06 Xiangyin Kong , Xiaoyu Jiang , Bingxin Zhang , Jinsong Yuan , Zhiqiang Ge

Finding relevant and high-quality datasets to train machine learning models is a major bottleneck for practitioners. Furthermore, to address ambitious real-world use-cases there is usually the requirement that the data come labelled with…

Machine Learning · Computer Science 2023-10-05 Georgios Papadopoulos , Fran Silavong , Sean Moran

Spoken language models (SLMs) have emerged as a unified paradigm for speech understanding and generation, enabling natural human machine interaction. However, while most progress has focused on semantic accuracy and instruction following,…

Latent generative models have emerged as a leading approach for high-quality image synthesis. These models rely on an autoencoder to compress images into a latent space, followed by a generative model to learn the latent distribution. We…

Machine Learning · Computer Science 2025-08-05 Theodoros Kouzelis , Ioannis Kakogeorgiou , Spyros Gidaris , Nikos Komodakis

This paper propose DualVDT, a generative model for Time-series forecasting. Introduced dual reparametrized variational mechanisms on variational autoencoder (VAE) to tighter the evidence lower bound (ELBO) of the model, prove the advance…

Machine Learning · Computer Science 2022-04-12 Ziang Chen

Nowadays, wearable devices can continuously lifelog ambient conversations, creating substantial opportunities for memory systems. However, existing benchmarks primarily focus on online one-on-one chatting or human-AI interactions, thus…

Computation and Language · Computer Science 2026-04-20 Jianjie Zheng , Zhichen Liu , Zhanyu Shen , Jingxiang Qu , Guanhua Chen , Yile Wang , Yang Xu , Yang Liu , Sijie Cheng

Cognitive modeling commonly relies on asking participants to complete a battery of varied tests in order to estimate attention, working memory, and other latent variables. In many cases, these tests result in highly variable observation…

Extracting time-varying latent variables from computational cognitive models is a key step in model-based neural analysis, which aims to understand the neural correlates of cognitive processes. However, existing methods only allow…

Machine Learning · Computer Science 2025-09-01 Ti-Fen Pan , Jing-Jing Li , Bill Thompson , Anne Collins

In order to build language technologies for majority of the languages, it is important to leverage the resources available in public domain on the internet - commonly referred to as `Found Data'. However, such data is characterized by the…

Audio and Speech Processing · Electrical Eng. & Systems 2019-09-27 Nishant Gurunath , Sai Krishna Rallabandi , Alan Black