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Vision-and-language navigation (VLN) is a trending topic which aims to navigate an intelligent agent to an expected position through natural language instructions. This work addresses the task of VLN from a previously-ignored aspect, namely…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Xinzhe Zhou , Wei Liu , Yadong Mu

Aligning robot navigation with human preferences is essential for ensuring comfortable, and predictable robot movement in shared spaces. While preference-based learning methods, such as reinforcement learning from human feedback (RLHF),…

Human-Computer Interaction · Computer Science 2025-10-21 Jorge de Heuvel , Daniel Marta , Simon Holk , Iolanda Leite , Maren Bennewitz

This study focuses on the problem of path modeling in heterogeneous information networks and proposes a multi-hop path-aware recommendation framework. The method centers on multi-hop paths composed of various types of entities and…

Information Retrieval · Computer Science 2025-05-12 Hongye Zheng , Yue Xing , Lipeng Zhu , Xu Han , Junliang Du , Wanyu Cui

One of the most basic functions of language is to refer to objects in a shared scene. Modeling reference with continuous representations is challenging because it requires individuation, i.e., tracking and distinguishing an arbitrary number…

Computation and Language · Computer Science 2019-11-18 Gemma Boleda , Sebastian Padó , Marco Baroni

In today's digital landscape, Deep Recommender Systems (DRS) play a crucial role in navigating and customizing online content for individual preferences. However, conventional methods, which mainly depend on single recommendation task,…

Information Retrieval · Computer Science 2025-03-03 Xiangyu Zhao , Yichao Wang , Bo Chen , Jingtong Gao , Yuhao Wang , Xiaopeng Li , Pengyue Jia , Qidong Liu , Huifeng Guo , Ruiming Tang

In comparison to classical shallow representation learning techniques, deep neural networks have achieved superior performance in nearly every application benchmark. But despite their clear empirical advantages, it is still not well…

Machine Learning · Computer Science 2022-01-11 Calvin Murdock , George Cazenavette , Simon Lucey

Recommender systems (RSs) have become an inseparable part of our everyday lives. They help us find our favorite items to purchase, our friends on social networks, and our favorite movies to watch. Traditionally, the recommendation problem…

Information Retrieval · Computer Science 2022-06-09 M. Mehdi Afsar , Trafford Crump , Behrouz Far

We introduce a new sequential transformer reinforcement learning architecture RLT4Rec and demonstrate that it achieves excellent performance in a range of item recommendation tasks. RLT4Rec uses a relatively simple transformer architecture…

Information Retrieval · Computer Science 2024-12-11 Dilina Chandika Rajapakse , Douglas Leith

Lifelong user modeling, which leverages users' long-term behavior sequences for CTR prediction, has been widely applied in personalized services. Existing methods generally adopted a two-stage "retrieval-refinement" strategy to balance…

Information Retrieval · Computer Science 2026-02-09 Qidong Liu , Gengnan Wang , Zhichen Liu , Moranxin Wang , Zijian Zhang , Xiao Han , Ni Zhang , Tao Qin , Chen Li

Nowadays there are more and more items available online, this makes it hard for users to find items that they like. Recommender systems aim to find the item who best suits the user, using his historical interactions. Depending on the…

Information Retrieval · Computer Science 2023-04-19 Theo Nommay

Recently, models for user representation learning have been widely applied in click-through-rate (CTR) and conversion-rate (CVR) prediction. Usually, the model learns a universal user representation as the input for subsequent…

Machine Learning · Computer Science 2024-09-24 Xiaoyu Tan , Yongxin Deng , Chao Qu , Siqiao Xue , Xiaoming Shi , James Zhang , Xihe Qiu

Acquiring valuable data from the rapidly expanding information on the internet has become a significant concern, and recommender systems have emerged as a widely used and effective tool for helping users discover items of interest. The…

Information Retrieval · Computer Science 2025-02-25 Jinfeng Xu , Zheyu Chen , Shuo Yang , Jinze Li , Wei Wang , Xiping Hu , Steven Hoi , Edith Ngai

Generative models have recently gained attention in recommendation systems by directly predicting item identifiers from user interaction sequences. However, existing methods suffer from significant information loss due to the separation of…

Information Retrieval · Computer Science 2025-03-05 Yuhao Yang , Zhi Ji , Zhaopeng Li , Yi Li , Zhonglin Mo , Yue Ding , Kai Chen , Zijian Zhang , Jie Li , Shuanglong Li , Lin Liu

In modern online platforms, search and recommendation (S&R) often coexist, offering opportunities for performance improvement through search-enhanced approaches. Existing studies show that incorporating search signals boosts recommendation…

Information Retrieval · Computer Science 2025-08-07 Teng Shi , Weijie Yu , Xiao Zhang , Ming He , Jianping Fan , Jun Xu

Portrait retouching aims to improve the aesthetic quality of input portrait photos and especially requires human-region priority. The deep learning-based methods largely elevate the retouching efficiency and provide promising retouched…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Huimin Zeng , Jie Huang , Jiacheng Li , Zhiwei Xiong

Trajectory representation learning plays a pivotal role in supporting various downstream tasks. Traditional methods in order to filter the noise in GPS trajectories tend to focus on routing-based methods used to simplify the trajectories.…

Machine Learning · Computer Science 2024-02-28 Zhipeng Ma , Zheyan Tu , Xinhai Chen , Yan Zhang , Deguo Xia , Guyue Zhou , Yilun Chen , Yu Zheng , Jiangtao Gong

Building successful recommender systems requires uncovering the underlying dimensions that describe the properties of items as well as users' preferences toward them. In domains like clothing recommendation, explaining users' preferences…

Information Retrieval · Computer Science 2016-04-21 Ruining He , Chunbin Lin , Jianguo Wang , Julian McAuley

Recent cross-domain recommendation (CDR) studies assume that disentangled domain-shared and domain-specific user representations can mitigate domain gaps and facilitate effective knowledge transfer. However, achieving perfect…

Information Retrieval · Computer Science 2024-11-27 Jing Du , Zesheng Ye , Bin Guo , Zhiwen Yu , Jia Wu , Jian Yang , Michael Sheng , Lina Yao

Navigation is crucial for animal behavior and is assumed to require an internal representation of the external environment, termed a cognitive map. The precise form of this representation is often considered to be a metric representation of…

Neurons and Cognition · Quantitative Biology 2020-02-10 Tie Xu , Omri Barak

Vehicle route prediction is one of the significant tasks in vehicles mobility. It is one of the means to reduce the accidents and increase comfort in human life. The task of route prediction becomes simpler with the development of certain…

Computers and Society · Computer Science 2021-04-13 Ali Nawaz , Attique Ur Rehman