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In recent years, cross-modal retrieval has drawn much attention due to the rapid growth of multimodal data. It takes one type of data as the query to retrieve relevant data of another type. For example, a user can use a text to retrieve…

Multimedia · Computer Science 2016-07-22 Kaiye Wang , Qiyue Yin , Wei Wang , Shu Wu , Liang Wang

The rapid growth of e-commerce requires robust multimodal representations that capture diverse signals from user-generated listings. Existing vision-language models (VLMs) typically align titles with primary images, i.e., single-view, but…

Information Retrieval · Computer Science 2025-12-23 Xiwen Chen , Yen-Chieh Lien , Susan Liu , María Castaños , Abolfazl Razi , Xiaoting Zhao , Congzhe Su

Multi-view clustering integrates multiple feature sets, which reveal distinct aspects of the data and provide complementary information to each other, to improve the clustering performance. It remains challenging to effectively exploit…

Machine Learning · Computer Science 2020-07-28 Shi-Xun Lina , Guo Zhongb , Ting Shu

Reinforcement learning (RL) has increasingly been applied to solve real-world planning problems, with progress in handling large state spaces and time horizons. However, a key bottleneck in many domains is that RL methods cannot accommodate…

Machine Learning · Computer Science 2025-03-19 Lily Xu , Bryan Wilder , Elias B. Khalil , Milind Tambe

In this paper we propose a methodology combining Federated Learning (FL) with Cross-view Image Geo-localization (CVGL) techniques. We address the challenges of data privacy and heterogeneity in autonomous vehicle environments by proposing a…

Computer Vision and Pattern Recognition · Computer Science 2024-11-08 Christos Anagnostopoulos , Alexandros Gkillas , Nikos Piperigkos , Aris S. Lalos

Reinforcement learning (RL) with diverse offline datasets can have the advantage of leveraging the relation of multiple tasks and the common skills learned across those tasks, hence allowing us to deal with real-world complex problems…

Machine Learning · Computer Science 2024-08-29 Minjong Yoo , Sangwoo Cho , Honguk Woo

Drawing upon the intuition that aligning different modalities to the same semantic embedding space would allow models to understand states and actions more easily, we propose a new perspective to the offline reinforcement learning (RL)…

Artificial Intelligence · Computer Science 2024-02-21 Tianyu Zheng , Ge Zhang , Xingwei Qu , Ming Kuang , Stephen W. Huang , Zhaofeng He

Recent works in multimodal recommendations, which leverage diverse modal information to address data sparsity and enhance recommendation accuracy, have garnered considerable interest. Two key processes in multimodal recommendations are…

Information Retrieval · Computer Science 2025-05-23 Jinfeng Xu , Zheyu Chen , Wei Wang , Xiping Hu , Sang-Wook Kim , Edith C. H. Ngai

Self-supervised learning has been widely used to obtain transferrable representations from unlabeled images. Especially, recent contrastive learning methods have shown impressive performances on downstream image classification tasks. While…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Byungseok Roh , Wuhyun Shin , Ildoo Kim , Sungwoong Kim

A long-standing challenge in coreference resolution has been the incorporation of entity-level information - features defined over clusters of mentions instead of mention pairs. We present a neural network based coreference system that…

Computation and Language · Computer Science 2016-06-10 Kevin Clark , Christopher D. Manning

Collaborative learning enables distributed clients to learn a shared model for prediction while keeping the training data local on each client. However, existing collaborative learning methods require fully-labeled data for training, which…

Machine Learning · Computer Science 2022-04-26 Yawen Wu , Zhepeng Wang , Dewen Zeng , Meng Li , Yiyu Shi , Jingtong Hu

Multimodal learning assumes all modality combinations of interest are available during training to learn cross-modal correspondences. In this paper, we challenge this modality-complete assumption for multimodal learning and instead strive…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Yunhua Zhang , Hazel Doughty , Cees G. M. Snoek

Multimodal learning robust to missing modality has attracted increasing attention due to its practicality. Existing methods tend to address it by learning a common subspace representation for different modality combinations. However, we…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Shicai Wei , Yang Luo , Yuji Wang , Chunbo Luo

In-context reinforcement learning (ICRL) has emerged as a promising paradigm for adapting RL agents to downstream tasks through prompt conditioning. However, two notable challenges remain in fully harnessing in-context learning within RL…

Machine Learning · Computer Science 2025-10-29 Wenhao Wu , Fuhong Liu , Haoru Li , Zican Hu , Daoyi Dong , Chunlin Chen , Zhi Wang

Contrastive learning allows us to flexibly define powerful losses by contrasting positive pairs from sets of negative samples. Recently, the principle has also been used to learn cross-modal embeddings for video and text, yet without…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Mohammadreza Zolfaghari , Yi Zhu , Peter Gehler , Thomas Brox

Visual place recognition (VPR) remains challenging due to significant viewpoint changes and appearance variations. Mainstream works tackle these challenges by developing various feature aggregation methods to transform deep features into…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Teng Wang , Lingquan Meng , Lei Cheng , Changyin Sun

This paper studies reinforcement learning (RL) in doubly inhomogeneous environments under temporal non-stationarity and subject heterogeneity. In a number of applications, it is commonplace to encounter datasets generated by system dynamics…

Machine Learning · Statistics 2025-03-18 Liyuan Hu , Mengbing Li , Chengchun Shi , Zhenke Wu , Piotr Fryzlewicz

Cluster discrimination is an effective pretext task for unsupervised representation learning, which often consists of two phases: clustering and discrimination. Clustering is to assign each instance a pseudo label that will be used to learn…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Qi Qian , Yuanhong Xu , Juhua Hu , Hao Li , Rong Jin

Many large-scale knowledge bases simultaneously represent two views of knowledge graphs (KGs): an ontology view for abstract and commonsense concepts, and an instance view for specific entities that are instantiated from ontological…

Artificial Intelligence · Computer Science 2021-03-16 Junheng Hao , Muhao Chen , Wenchao Yu , Yizhou Sun , Wei Wang

Region representation learning plays a pivotal role in urban computing by extracting meaningful features from unlabeled urban data. Analogous to how perceived facial age reflects an individual's health, the visual appearance of a city…

Artificial Intelligence · Computer Science 2025-12-02 Yimei Zhang , Guojiang Shen , Kaili Ning , Tongwei Ren , Xuebo Qiu , Mengmeng Wang , Xiangjie Kong