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This paper considers a discrete-valued signal estimation scheme based on a low-complexity Bayesian optimal message passing algorithm (MPA) for solving massive linear inverse problems under highly correlated measurements. Gaussian belief…

Signal Processing · Electrical Eng. & Systems 2024-11-14 Tomoharu Furudoi , Takumi Takahashi , Shinsuke Ibi , Hideki Ochiai

Latent Dirichlet analysis, or topic modeling, is a flexible latent variable framework for modeling high-dimensional sparse count data. Various learning algorithms have been developed in recent years, including collapsed Gibbs sampling,…

Machine Learning · Computer Science 2012-05-14 Arthur Asuncion , Max Welling , Padhraic Smyth , Yee Whye Teh

One of the main computational and scientific challenges in the modern age is to extract useful information from unstructured texts. Topic models are one popular machine-learning approach which infers the latent topical structure of a…

Machine Learning · Statistics 2018-07-20 Martin Gerlach , Tiago P. Peixoto , Eduardo G. Altmann

Nowadays, data analysis has become a problem as the amount of data is constantly increasing. In order to overcome this problem in textual data, many models and methods are used in natural language processing. The topic modeling field is one…

Computation and Language · Computer Science 2021-10-22 Zekeriya Anil Guven , Banu Diri , Tolgahan Cakaloglu

This paper presents a new method for the discovery of latent domains in diverse speech data, for the use of adaptation of Deep Neural Networks (DNNs) for Automatic Speech Recognition. Our work focuses on transcription of multi-genre…

Computation and Language · Computer Science 2016-11-17 Mortaza Doulaty , Oscar Saz , Raymond W. M. Ng , Thomas Hain

Deploying Vision-Language Models (VLMs) on edge devices is challenged by resource constraints and performance degradation under distribution shifts. While test-time adaptation (TTA) can counteract such shifts, existing methods are too…

Artificial Intelligence · Computer Science 2026-02-18 Xin Wang , Hong Jia , Hualin Zhou , Sheng Guang Wang , Yu Zhang , Ting Dang , Tao Gu

Topic modeling is widely used for analytically evaluating large collections of textual data. One of the most popular topic techniques is Latent Dirichlet Allocation (LDA), which is flexible and adaptive, but not optimal for e.g. short texts…

Computation and Language · Computer Science 2022-12-19 Muriël de Groot , Mohammad Aliannejadi , Marcel R. Haas

Intelligent entities such as self-driving vehicles, with their data being processed by machine learning units (MLU), are developing into an intertwined part of networks. These units handle distorted input but their sensitivity to noisy…

Information Theory · Computer Science 2022-05-19 Afsaneh Gharouni , Peter Rost , Andreas Maeder , Hans Schotten

Variational Bayes (VB), also known as independent mean-field approximation, has become a popular method for Bayesian network inference in recent years. Its application is vast, e.g. in neural network, compressed sensing, clustering, etc. to…

Information Theory · Computer Science 2018-03-30 Viet Hung Tran

The impressive performance of Large Language Models (LLMs) across various natural language processing tasks comes at the cost of vast computational resources and storage requirements. One-shot pruning techniques offer a way to alleviate…

Machine Learning · Computer Science 2025-09-09 Xiang Meng , Kayhan Behdin , Haoyue Wang , Rahul Mazumder

In this work, we propose learnable Bernoulli dropout (LBD), a new model-agnostic dropout scheme that considers the dropout rates as parameters jointly optimized with other model parameters. By probabilistic modeling of Bernoulli dropout,…

Machine Learning · Computer Science 2020-02-13 Shahin Boluki , Randy Ardywibowo , Siamak Zamani Dadaneh , Mingyuan Zhou , Xiaoning Qian

We prove that the evidence lower bound (ELBO) employed by variational auto-encoders (VAEs) admits non-trivial solutions having constant posterior variances under certain mild conditions, removing the need to learn variances in the encoder.…

Machine Learning · Computer Science 2021-05-27 Graham Fyffe

Pre-trained Vision-Language Models (VLMs) exhibit strong generalization capabilities, enabling them to recognize a wide range of objects across diverse domains without additional training. However, they often retain irrelevant information…

Machine Learning · Computer Science 2025-10-10 Kodai Kawamura , Yuta Goto , Rintaro Yanagi , Hirokatsu Kataoka , Go Irie

A novel approach is suggested for improving the accuracy of fault detection in distribution networks. This technique combines adaptive probability learning and waveform decomposition to optimize the similarity of features. Its objective is…

Signal Processing · Electrical Eng. & Systems 2023-10-03 Xinliang Ma , Weihua Liu , Bingying Jin

Large Vision Language Models (LVLMs) such as LLaVA have demonstrated impressive capabilities as general-purpose chatbots that can engage in conversations about a provided input image. However, their responses are influenced by societal…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Neale Ratzlaff , Matthew Lyle Olson , Musashi Hinck , Shao-Yen Tseng , Vasudev Lal , Phillip Howard

As one of the most popular linear subspace learning methods, the Linear Discriminant Analysis (LDA) method has been widely studied in machine learning community and applied to many scientific applications. Traditional LDA minimizes the…

Machine Learning · Computer Science 2019-07-02 Feiping Nie , Hua Wang , Zheng Wang , Heng Huang

Motivated by variational inference methods, we propose a zeroth-order algorithm for solving optimization problems in the space of Gaussian probability measures. The algorithm is based on an interacting system of Gaussian particles that…

Optimization and Control · Mathematics 2026-05-15 Giacomo Borghi , José A. Carrillo

Standard LDA model suffers the problem that the topic assignment of each word is independent and word correlation hence is neglected. To address this problem, in this paper, we propose a model called Word Related Latent Dirichlet Allocation…

Computation and Language · Computer Science 2014-11-11 Xun Wang

Traditionally, Latent Dirichlet Allocation (LDA) ingests words in a collection of documents to discover their latent topics using word-document co-occurrences. However, it is unclear how to achieve the best results for languages without…

Computation and Language · Computer Science 2021-08-25 Jin Cheevaprawatdomrong , Alexandra Schofield , Attapol T. Rutherford

Detecting bias in multimodal news requires models that reason over text--image pairs, not just classify text. In response, we present ViLBias, a VQA-style benchmark and framework for detecting and reasoning about bias in multimodal news.…