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Selection bias is prevalent in the data for training and evaluating recommendation systems with explicit feedback. For example, users tend to rate items they like. However, when rating an item concerning a specific user, most of the…

Information Retrieval · Computer Science 2021-09-14 Weishen Pan , Sen Cui , Hongyi Wen , Kun Chen , Changshui Zhang , Fei Wang

Recommender Systems have become an integral part of online e-Commerce platforms, driving customer engagement and revenue. Most popular recommender systems attempt to learn from users' past engagement data to understand behavioral traits of…

Machine Learning · Computer Science 2020-12-04 Venugopal Mani , Ramasubramanian Balasubramanian , Sushant Kumar , Abhinav Mathur , Kannan Achan

Implicit feedback is widely leveraged in recommender systems since it is easy to collect and provides weak supervision signals. Recent works reveal a huge gap between the implicit feedback and user-item relevance due to the fact that…

Information Retrieval · Computer Science 2022-06-02 Can Chen , Chen Ma , Xi Chen , Sirui Song , Hao Liu , Xue Liu

We propose a real-time context-aware learning system along with the architecture that runs on the mobile devices, provide services to the user and manage the IoT devices. In this system, an application running on mobile devices collected…

Machine Learning · Computer Science 2018-10-29 Bhaskar Das , Jalal Almhana

In this paper, we aim to extract commonsense knowledge to improve machine reading comprehension. We propose to represent relations implicitly by situating structured knowledge in a context instead of relying on a pre-defined set of…

Computation and Language · Computer Science 2020-10-20 Kai Sun , Dian Yu , Jianshu Chen , Dong Yu , Claire Cardie

Recent years have witnessed rapid developments on collaborative filtering techniques for improving the performance of recommender systems due to the growing need of companies to help users discover new and relevant items. However, the…

Machine Learning · Statistics 2021-06-14 Yizi Zhang , Meimei Liu

In the recommender system of Meituan Waimai, we are dealing with ever-lengthening user behavior sequences, which pose an increasing challenge to modeling user preference effectively. Existing sequential recommendation models often fail to…

Information Retrieval · Computer Science 2024-03-20 Zhichao Feng , Junjiie Xie , Kaiyuan Li , Yu Qin , Pengfei Wang , Qianzhong Li , Bin Yin , Xiang Li , Wei Lin , Shangguang Wang

Large language models (LLMs) have become integral to modern Human-AI collaboration workflows, where accurately understanding user intent serves as a crucial step for generating satisfactory responses. Context-aware intent understanding,…

Computation and Language · Computer Science 2026-03-05 Guanming Liu , Meng Wu , Peng Zhang , Yu Zhang , Yubo Shu , Xianliang Huang , Kainan Tu , Ning Gu , Liuxin Zhang , Qianying Wang , Tun Lu

The goal of recommender systems is to help users find useful items from a large catalog of items by producing a list of item recommendations for every user. Data sets based on implicit data collection have a number of special…

Information Retrieval · Computer Science 2020-12-22 Markus Viljanen , Tapio Pahikkala

Intent modeling has attracted widespread attention in recommender systems. As the core motivation behind user selection of items, intent is crucial for elucidating recommendation results. The current mainstream modeling method is to…

Information Retrieval · Computer Science 2024-05-16 Yi Zhang , Lei Sang , Yiwen Zhang

The growth of Internet commerce has stimulated the use of collaborative filtering (CF) algorithms as recommender systems. A collaborative filtering (CF) algorithm recommends items of interest to the target user by leveraging the votes given…

Information Retrieval · Computer Science 2018-05-09 Xu He , Bin Liu , Ke-Jia Chen

Learning to rank with implicit feedback is one of the most important tasks in many real-world information systems where the objective is some specific utility, e.g., clicks and revenue. However, we point out that existing methods based on…

Information Retrieval · Computer Science 2020-11-03 Xinyi Dai , Jiawei Hou , Qing Liu , Yunjia Xi , Ruiming Tang , Weinan Zhang , Xiuqiang He , Jun Wang , Yong Yu

We propose a new context-aware correlation filter based tracking framework to achieve both high computational speed and state-of-the-art performance among real-time trackers. The major contribution to the high computational speed lies in…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Jongwon Choi , Hyung Jin Chang , Tobias Fischer , Sangdoo Yun , Kyuewang Lee , Jiyeoup Jeong , Yiannis Demiris , Jin Young Choi

Sequential recommender models are essential components of modern industrial recommender systems. These models learn to predict the next items a user is likely to interact with based on his/her interaction history on the platform. Most…

Information Retrieval · Computer Science 2023-03-28 Bo Chang , Alexandros Karatzoglou , Yuyan Wang , Can Xu , Ed H. Chi , Minmin Chen

By incorporating additional contextual information, deep biasing methods have emerged as a promising solution for speech recognition of personalized words. However, for real-world voice assistants, always biasing on such personalized words…

Sound · Computer Science 2023-08-16 Tianyi Xu , Zhanheng Yang , Kaixun Huang , Pengcheng Guo , Ao Zhang , Biao Li , Changru Chen , Chao Li , Lei Xie

Recommender systems have made significant strides in various industries, primarily driven by extensive efforts to enhance recommendation accuracy. However, this pursuit of accuracy has inadvertently given rise to echo chamber/filter bubble…

Information Retrieval · Computer Science 2024-02-07 Tao Zhang , Luwei Yang , Zhibo Xiao , Wen Jiang , Wei Ning

In e-commerce shopping, aligning search results with a buyer's immediate needs and preferences presents a significant challenge, particularly in adapting search results throughout the buyer's shopping journey as they move from the initial…

Information Retrieval · Computer Science 2025-12-16 Taoran Sheng , Sathappan Muthiah , Atiq Islam , Jinming Feng

Temporal set prediction is becoming increasingly important as many companies employ recommender systems in their online businesses, e.g., personalized purchase prediction of shopping baskets. While most previous techniques have focused on…

Machine Learning · Computer Science 2021-09-07 Seungjae Jung , Young-Jin Park , Jisu Jeong , Kyung-Min Kim , Hiun Kim , Minkyu Kim , Hanock Kwak

Implicit Attribute Value Extraction (AVE) is essential for accurately representing products in e-commerce, as it infers latent attributes from multimodal data. Despite advances in multimodal large language models (MLLMs), implicit AVE…

Computation and Language · Computer Science 2026-01-19 Wei-Chieh Huang , Cornelia Caragea

Real-world requests to AI agents are fundamentally underspecified. Natural human communication relies on shared context and unstated constraints that speakers expect listeners to infer. Current agentic benchmarks test explicit…

Artificial Intelligence · Computer Science 2026-02-25 Ved Sirdeshmukh , Marc Wetter