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In recommendation systems, there has been a growth in the number of recommendable items (# of movies, music, products). When the set of recommendable items is large, training and evaluation of item recommendation models becomes…

Information Retrieval · Computer Science 2024-10-14 Anushya Subbiah , Steffen Rendle , Vikram Aggarwal

Visible-infrared person re-identification (VIReID) retrieves pedestrian images with the same identity across different modalities. Existing methods learn visual content solely from images, lacking the capability to sense high-level…

Computer Vision and Pattern Recognition · Computer Science 2024-12-12 Neng Dong , Shuanglin Yan , Liyan Zhang , Jinhui Tang

Semantic segmentation is a task that traditionally requires a large dataset of pixel-level ground truth labels, which is time-consuming and expensive to obtain. Recent advancements in the weakly-supervised setting show that reasonable…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Erik Stammes , Tom F. H. Runia , Michael Hofmann , Mohsen Ghafoorian

Subsampling is commonly used to mitigate costs associated with data acquisition, such as time or energy requirements, motivating the development of algorithms for estimating the fully-sampled signal of interest $x$ from partially observed…

Machine Learning · Computer Science 2025-04-23 Oisin Nolan , Tristan S. W. Stevens , Wessel L. van Nierop , Ruud J. G. van Sloun

Importance Sampling (IS) is a method for approximating expectations under a target distribution using independent samples from a proposal distribution and the associated importance weights. In many applications, the target distribution is…

Machine Learning · Statistics 2022-09-14 Gabriel Cardoso , Sergey Samsonov , Achille Thin , Eric Moulines , Jimmy Olsson

Retrieval, the initial stage of a recommendation system, is tasked with down-selecting items from a pool of tens of millions of candidates to a few thousands. Embedding Based Retrieval (EBR) has been a typical choice for this problem,…

Large-scale embedding-based retrieval (EBR) is the cornerstone of search-related industrial applications. Given a user query, the system of EBR aims to identify relevant information from a large corpus of documents that may be tens or…

Information Retrieval · Computer Science 2023-02-20 Yukang Gan , Yixiao Ge , Chang Zhou , Shupeng Su , Zhouchuan Xu , Xuyuan Xu , Quanchao Hui , Xiang Chen , Yexin Wang , Ying Shan

Prior studies in embodied AI consistently show that robust perception is critical for human-robot interaction, yet deploying high-fidelity visual models on resource-constrained agents remains challenging due to limited on-device computation…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Jinhao Wang , Nam Ling , Wei Wang , Wei Jiang

Semantic segmentation of Very High Resolution (VHR) remote sensing images is a fundamental task for many applications. However, large variations in the scales of objects in those VHR images pose a challenge for performing accurate semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Yuanzhi Cai , Lei Fan , Yuan Fang

Training semantic segmenter with synthetic data has been attracting great attention due to its easy accessibility and huge quantities. Most previous methods focused on producing large-scale synthetic image-annotation samples and then…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Hao Tang , Siyue Yu , Jian Pang , Bingfeng Zhang

In recommendation systems, users frequently engage in multiple types of behaviors, such as clicking, adding to a cart, and purchasing. However, with diversified behavior data, user behavior sequences will become very long in the short term,…

Information Retrieval · Computer Science 2024-03-27 Yongqiang Han , Hao Wang , Kefan Wang , Likang Wu , Zhi Li , Wei Guo , Yong Liu , Defu Lian , Enhong Chen

In epidemiology, traditional statistical methods such as logistic regression, linear regression, and other parametric models are commonly employed to investigate associations between predictors and health outcomes. However, non-parametric…

Machine Learning · Computer Science 2025-01-20 Jean-Baptiste Guimbaud , Marc Plantevit , Léa Maître , Rémy Cazabet

In power electronic systems (PES), attacks on data availability such as latency attacks, data dropouts, and time-synchronization attacks (TSAs) continue to pose significant threats to both the communication network and the control system…

Systems and Control · Electrical Eng. & Systems 2024-02-23 Kirti Gupta , Subham Sahoo , Bijaya Ketan Panigrahi

Real-world ecommerce recommender systems must deliver relevant items under strict tens-of-milliseconds latency constraints despite challenges such as cold-start products, rapidly shifting user intent, and dynamic context including…

Information Retrieval · Computer Science 2025-12-16 Han Chen , Steven Zhu , Yingrui Li

The core of cross-modal matching is to accurately measure the similarity between different modalities in a unified representation space. However, compared to textual descriptions of a certain perspective, the visual modality has more…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Wenzhang Wei , Zhipeng Gui , Changguang Wu , Anqi Zhao , Dehua Peng , Huayi Wu

Deep metric learning aims to learn a deep embedding that can capture the semantic similarity of data points. Given the availability of massive training samples, deep metric learning is known to suffer from slow convergence due to a large…

Machine Learning · Computer Science 2019-12-05 Xinshao Wang , Yang Hua , Elyor Kodirov , Guosheng Hu , Neil M. Robertson

Iterative feature space optimization involves systematically evaluating and adjusting the feature space to improve downstream task performance. However, existing works suffer from three key limitations:1) overlooking differences among data…

Machine Learning · Computer Science 2026-05-26 Yanping Wu , Yanyong Huang , Zhengzhang Chen , Zijun Yao , Yanjie Fu , Kunpeng Liu , Xiao Luo , Dongjie Wang

Error Span Detection (ESD) extends automatic machine translation (MT) evaluation by localizing translation errors and labeling their severity. Current generative ESD methods typically use Maximum a Posteriori (MAP) decoding, assuming that…

Computation and Language · Computer Science 2026-01-01 Boxuan Lyu , Haiyue Song , Hidetaka Kamigaito , Chenchen Ding , Hideki Tanaka , Masao Utiyama , Kotaro Funakoshi , Manabu Okumura

Many engineering problems require identifying feasible domains under implicit constraints. One example is finding acceptable car body styling designs based on constraints like aesthetics and functionality. Current active-learning based…

Machine Learning · Computer Science 2018-01-23 Wei Chen , Mark Fuge

Machine Reading at Scale (MRS) is a challenging task in which a system is given an input query and is asked to produce a precise output by "reading" information from a large knowledge base. The task has gained popularity with its natural…

Computation and Language · Computer Science 2019-09-19 Yixin Nie , Songhe Wang , Mohit Bansal