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In search systems, effectively coordinating the two core objectives of search relevance matching and click-through rate (CTR) prediction is crucial for discovering users' interests and enhancing platform revenue. In our prior work PRECTR,…

Information Retrieval · Computer Science 2026-02-25 Shuzhi Cao , Rong Chen , Ailong He , Shuguang Han , Jufeng Chen

Sequential Recommendation (SR) in multimodal settings typically relies on small frozen pretrained encoders, which limits semantic capacity and prevents Collaborative Filtering (CF) signals from being fully integrated into item…

Information Retrieval · Computer Science 2026-03-19 Junyoung Kim , Woojoo Kim , Jaehyung Lim , Dongha Kim , Hwanjo Yu

Third-party libraries (TPLs) have become an integral part of modern software development, enhancing developer productivity and accelerating time-to-market. However, identifying suitable candidates from a rapidly growing and continuously…

Software Engineering · Computer Science 2025-04-21 Minh Hoang Vuong , Anh M. T. Bui , Phuong T. Nguyen , Davide Di Ruscio

Many sequential recommender systems suffer from the cold start problem, where items with few or no interactions cannot be effectively used by the model due to the absence of a trained embedding. Content-based approaches, which leverage item…

Information Retrieval · Computer Science 2025-07-28 Anton Pembek , Artem Fatkulin , Anton Klenitskiy , Alexey Vasilev

Privacy-preserving recommendations are recently gaining momentum, since the decentralized user data is increasingly harder to collect, by recommendation service providers, due to the serious concerns over user privacy and data security.…

Information Retrieval · Computer Science 2020-08-26 Mingkai Huang , Hao Li , Bing Bai , Chang Wang , Kun Bai , Fei Wang

The gap between the randomly initialized item ID embedding and the well-trained warm item ID embedding makes the cold items hard to suit the recommendation system, which is trained on the data of historical warm items. To alleviate the…

Information Retrieval · Computer Science 2023-03-01 Shenzheng Zhang , Qi Tan , Xinzhi Zheng , Yi Ren , Xu Zhao

Practical recommender systems experience a cold-start problem when observed user-item interactions in the history are insufficient. Meta learning, especially gradient based one, can be adopted to tackle this problem by learning initial…

Information Retrieval · Computer Science 2021-11-01 Xidong Feng , Chen Chen , Dong Li , Mengchen Zhao , Jianye Hao , Jun Wang

An emerging line of work has shown that machine-learned predictions are useful to warm-start algorithms for discrete optimization problems, such as bipartite matching. Previous studies have shown time complexity bounds proportional to some…

Machine Learning · Computer Science 2023-02-03 Shinsaku Sakaue , Taihei Oki

With the rapid growth of digital information, personalized recommendation systems have become an indispensable part of Internet services, especially in the fields of e-commerce, social media, and online entertainment. However, traditional…

Information Retrieval · Computer Science 2024-11-12 Yuanshuai Luo , Rui Wang , Yaxin Liang , Ankai Liang , Wenyi Liu

Click-Through Rate (CTR) prediction holds a paramount position in recommender systems. The prevailing ID-based paradigm underperforms in cold-start scenarios due to the skewed distribution of feature frequency. Additionally, the utilization…

Information Retrieval · Computer Science 2024-11-28 Xingmei Wang , Weiwen Liu , Xiaolong Chen , Qi Liu , Xu Huang , Yichao Wang , Xiangyang Li , Yasheng Wang , Zhenhua Dong , Defu Lian , Ruiming Tang

Continual learning deals with training models on new tasks and datasets in an online fashion. One strand of research has used probabilistic regularization for continual learning, with two of the main approaches in this vein being Online…

Machine Learning · Computer Science 2020-12-01 Noel Loo , Siddharth Swaroop , Richard E. Turner

In this paper, we introduce $\text{EVL}_{\text{Gen}}$, a streamlined framework designed for the pre-training of visually conditioned language generation models with high computational demands, utilizing frozen pre-trained large language…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Yiren Jian , Tingkai Liu , Yunzhe Tao , Chunhui Zhang , Soroush Vosoughi , Hongxia Yang

Entity typing (ET) is the problem of assigning labels to given entity mentions in a sentence. Existing works for ET require knowledge about the domain and target label set for a given test instance. ET in the absence of such knowledge is a…

Computation and Language · Computer Science 2021-06-01 Abhishek Abhishek , Amar Prakash Azad , Balaji Ganesan , Ashish Anand , Amit Awekar

Estimating post-click conversion rate (CVR) accurately is crucial in E-commerce. However, CVR prediction usually suffers from three major challenges in practice: i) data sparsity: compared with impressions, conversion samples are often…

Machine Learning · Computer Science 2020-11-25 Yanshi Wang , Jie Zhang , Qing Da , Anxiang Zeng

The Capacitated Vehicle Routing Problem (CVRP) is a fundamental NP-hard problem with broad applications in logistics and transportation. Real-world CVRPs often involve diverse objectives and complex constraints, such as time windows or…

Artificial Intelligence · Computer Science 2026-05-15 Wen Wang , Xiangchen Wu , Liang Wang , Hao Hu , Xianping Tao

This paper proposes a cold start recommendation model that integrates contrastive learning, aiming to solve the problem of performance degradation of recommendation systems in cold start scenarios due to the scarcity of user and item…

Information Retrieval · Computer Science 2025-02-07 Jiacheng Hu , Tai An , Zidong Yu , Junliang Du , Yuanshuai Luo

Reinforcement learning (RL) has shown great promise in optimizing long-term user interest in recommender systems. However, existing RL-based recommendation methods need a large number of interactions for each user to learn a robust…

Machine Learning · Computer Science 2020-12-07 Yanan Wang , Yong Ge , Li Li , Rui Chen , Tong Xu

The planning problem constitutes a fundamental aspect of the autonomous driving framework. Recent strides in representation learning have empowered vehicles to comprehend their surrounding environments, thereby facilitating the integration…

Collaborative filtering is used to recommend items to a user without requiring a knowledge of the item itself and tends to outperform other techniques. However, collaborative filtering suffers from the cold-start problem, which occurs when…

Machine Learning · Computer Science 2014-06-10 Michael R. Smith , Tony Martinez , Michael Gashler

Federated learning (FL) has attracted significant attention for enabling collaborative learning without exposing private data. Among the primary variants of FL, vertical federated learning (VFL) addresses feature-partitioned data held by…

Machine Learning · Computer Science 2026-03-31 Kihun Hong , Sejun Park , Ganguk Hwang