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Cross-domain text classification aims at building a classifier for a target domain which leverages data from both source and target domain. One promising idea is to minimize the feature distribution differences of the two domains. Most…

计算与语言 · 计算机科学 2019-01-07 Baoyu Jing , Chenwei Lu , Deqing Wang , Fuzhen Zhuang , Cheng Niu

Various deep learning models have been developed to segment anatomical structures from medical images, but they typically have poor performance when tested on another target domain with different data distribution. Recently, unsupervised…

图像与视频处理 · 电气工程与系统科学 2022-01-21 Linkai Peng , Li Lin , Pujin Cheng , Ziqi Huang , Xiaoying Tang

Real-world data often exhibit imbalanced label distributions. Existing studies on data imbalance focus on single-domain settings, i.e., samples are from the same data distribution. However, natural data can originate from distinct domains,…

机器学习 · 计算机科学 2022-08-02 Yuzhe Yang , Hao Wang , Dina Katabi

Directed Acyclic Graphs (DAGs) are a standard tool in causal modeling, but their suitability for capturing the complexity of large-scale multimodal data is questionable. In practice, real-world multimodal datasets are often collected from…

Topic models such as LDA, DocNADE, iDocNADEe have been popular in document analysis. However, the traditional topic models have several limitations including: (1) Bag-of-words (BoW) assumption, where they ignore word ordering, (2) Data…

信息检索 · 计算机科学 2019-10-01 Yatin Chaudhary , Pankaj Gupta , Thomas Runkler

Adaptive intelligent educational systems are gaining popularity, offering personalized learning experiences to students based on their individual needs and styles. One crucial feature of such systems is real-time personalized feedback.…

人机交互 · 计算机科学 2024-12-11 T S Ashwin , Shaikh Danish Shafi , Rajendran Ramkumar

For organizing large text corpora topic modeling provides useful tools. A widely used method is Latent Dirichlet Allocation (LDA), a generative probabilistic model which models single texts in a collection of texts as mixtures of latent…

计算与语言 · 计算机科学 2020-04-02 Jonas Rieger , Lars Koppers , Carsten Jentsch , Jörg Rahnenführer

Infrared-visible object detection has shown great potential in real-world applications, enabling robust all-day perception by leveraging the complementary information of infrared and visible images. However, existing methods typically…

计算机视觉与模式识别 · 计算机科学 2025-08-15 Hang Jin , Chenqiang Gao , Junjie Guo , Fangcen Liu , Kanghui Tian , Qinyao Chang

We study the problem of multimodal generative modelling of images based on generative adversarial networks (GANs). Despite the success of existing methods, they often ignore the underlying structure of vision data or its multimodal…

机器学习 · 计算机科学 2019-11-07 Lili Pan , Shen Cheng , Jian Liu , Yazhou Ren , Zenglin Xu

In this paper, we propose a novel end-to-end unsupervised deep domain adaptation model for adaptive object detection by exploiting multi-label object recognition as a dual auxiliary task. The model exploits multi-label prediction to reveal…

计算机视觉与模式识别 · 计算机科学 2020-08-12 Zhen Zhao , Yuhong Guo , Haifeng Shen , Jieping Ye

We apply reinforcement learning techniques to topic modeling by replacing the variational autoencoder in ProdLDA with a continuous action space reinforcement learning policy. We train the system with a policy gradient algorithm REINFORCE.…

计算与语言 · 计算机科学 2023-05-09 Jeremy Costello , Marek Z. Reformat

Classification problems solved with deep neural networks (DNNs) typically rely on a closed world paradigm, and optimize over a single objective (e.g., minimization of the cross-entropy loss). This setup dismisses all kinds of supporting…

机器学习 · 计算机科学 2021-05-27 Sebastian Palacio , Philipp Engler , Jörn Hees , Andreas Dengel

This work introduces Dirichlet Active Learning (DiAL), a Bayesian-inspired approach to the design of active learning algorithms. Our framework models feature-conditional class probabilities as a Dirichlet random field and lends…

机器学习 · 统计学 2023-11-10 Kevin Miller , Ryan Murray

Latent Dirichlet allocation (LDA) is a widely-used probabilistic topic modeling paradigm, and recently finds many applications in computer vision and computational biology. In this paper, we propose a fast and accurate batch algorithm,…

机器学习 · 计算机科学 2014-04-09 Jia Zeng , Zhi-Qiang Liu , Xiao-Qin Cao

Recent advances have made it feasible to apply the stochastic variational paradigm to a collapsed representation of latent Dirichlet allocation (LDA). While the stochastic variational paradigm has successfully been applied to an uncollapsed…

机器学习 · 计算机科学 2013-12-03 Arnim Bleier

Causal learning is the key to obtaining stable predictions and answering \textit{what if} problems in decision-makings. In causal learning, it is central to seek methods to estimate the average treatment effect (ATE) from observational…

机器学习 · 统计学 2022-12-07 Yiyan Huang , Cheuk Hang Leung , Qi Wu , Xing Yan

In multi-label classification, each training instance is associated with multiple class labels simultaneously. Unfortunately, collecting the fully precise class labels for each training instance is time- and labor-consuming for real-world…

机器学习 · 计算机科学 2024-03-26 Meng Wei , Zhongnian Li , Peng Ying , Yong Zhou , Xinzheng Xu

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…

计算与语言 · 计算机科学 2021-08-25 Jin Cheevaprawatdomrong , Alexandra Schofield , Attapol T. Rutherford

In this paper, we provide the first practical algorithms with provable guarantees for the problem of inferring the topics assigned to each document in an LDA topic model. This is the primary inference problem for many applications of topic…

机器学习 · 计算机科学 2025-06-10 Adam Breuer

Topic modeling is admittedly a convenient way to monitor markets trend. Conventionally, Latent Dirichlet Allocation, LDA, is considered a must-do model to gain this type of information. By given the merit of deducing keyword with token…

计算与语言 · 计算机科学 2023-09-19 Ching-Hsun Tseng , Shin-Jye Lee , Po-Wei Cheng , Chien Lee , Chih-Chieh Hung