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The search for the optimal pair of active and protection paths in a network with Shared Risk Link Groups (SRLG) is a challenging but high-value problem in the industry that is inevitable in ensuring reliable connections on the modern…

Data Structures and Algorithms · Computer Science 2025-08-05 P. A. Mosharev , Choon-Meng Lee , Xu Shu , Xiaoshan Zhang , Man-Hong Yung

Current personalized recommender systems predominantly rely on static offline data for algorithm design and evaluation, significantly limiting their ability to capture long-term user preference evolution and social influence dynamics in…

Multiagent Systems · Computer Science 2025-05-28 Hailin Zhong , Hanlin Wang , Yujun Ye , Meiyi Zhang , Shengxin Zhu

Graph Neural Networks (GNNs) have achieved remarkable success in various graph-based tasks (e.g., node classification or link prediction). Despite their triumphs, GNNs still face challenges such as long training and inference times,…

Machine Learning · Computer Science 2025-07-15 Chu-Yuan Wei , Shun-Yao Liu , Sheng-Da Zhuo , Chang-Dong Wang , Shu-Qiang Huang , Mohsen Guizani

Estimating click-through rate (CTR) accurately has an essential impact on improving user experience and revenue in sponsored search. For CTR prediction model, it is necessary to make out user real-time search intention. Most of the current…

Machine Learning · Computer Science 2021-03-31 Feng Li , Zhenrui Chen , Pengjie Wang , Yi Ren , Di Zhang , Xiaoyu Zhu

Graph Neural Networks (GNNs) have been emerging as a promising method for relational representation including recommender systems. However, various challenging issues of social graphs hinder the practical usage of GNNs for social…

Social and Information Networks · Computer Science 2019-08-08 Kyung-Min Kim , Donghyun Kwak , Hanock Kwak , Young-Jin Park , Sangkwon Sim , Jae-Han Cho , Minkyu Kim , Jihun Kwon , Nako Sung , Jung-Woo Ha

Multimodal recommendation systems utilize various types of information, including images and text, to enhance the effectiveness of recommendations. The key challenge is predicting user purchasing behavior from the available data. Current…

Information Retrieval · Computer Science 2025-11-04 Ke Shi , Yan Zhang , Miao Zhang , Lifan Chen , Jiali Yi , Kui Xiao , Xiaoju Hou , Zhifei Li

In this paper, we introduce a novel image-goal navigation approach, named RFSG. Our focus lies in leveraging the fine-grained connections between goals, observations, and the environment within limited image data, all the while keeping the…

Robotics · Computer Science 2025-03-17 Zhicheng Feng , Xieyuanli Chen , Chenghao Shi , Lun Luo , Zhichao Chen , Yun-Hui Liu , Huimin Lu

Understanding human behavior in urban environments is a crucial field within city sciences. However, collecting accurate behavioral data, particularly in newly developed areas, poses significant challenges. Recent advances in generative…

Artificial Intelligence · Computer Science 2025-09-08 Kai Hu , Parfait Atchade-Adelomou , Carlo Adornetto , Adrian Mora-Carrero , Luis Alonso-Pastor , Ariel Noyman , Yubo Liu , Kent Larson

This work addresses the challenge of using a deep learning model to prune graphs and the ability of this method to integrate explainability into spatio-temporal problems through a new approach. Instead of applying explainability to the…

Machine Learning · Computer Science 2025-10-14 Javier García-Sigüenza , Mirco Nanni , Faraón Llorens-Largo , José F. Vicent

Predicting the next interaction of a short-term interaction session is a challenging task in session-based recommendation. Almost all existing works rely on item transition patterns, and neglect the impact of user historical sessions while…

Information Retrieval · Computer Science 2022-03-01 Yitong Pang , Lingfei Wu , Qi Shen , Yiming Zhang , Zhihua Wei , Fangli Xu , Ethan Chang , Bo Long , Jian Pei

Next Point-of-Interest (POI) recommendation plays a crucial role in urban mobility applications. Recently, POI recommendation models based on Graph Neural Networks (GNN) have been extensively studied and achieved, however, the effective…

Recent advances in personalized recommendation have sparked great interest in the exploitation of rich structured information provided by knowledge graphs. Unlike most existing approaches that only focus on leveraging knowledge graphs for…

Information Retrieval · Computer Science 2019-06-13 Yikun Xian , Zuohui Fu , S. Muthukrishnan , Gerard de Melo , Yongfeng Zhang

Multi-behavior recommendation exploits multiple types of user-item interactions to alleviate the data sparsity problem faced by the traditional models that often utilize only one type of interaction for recommendation. In real scenarios,…

Information Retrieval · Computer Science 2023-07-13 Mingshi Yan , Zhiyong Cheng , Chen Gao , Jing Sun , Fan Liu , Fuming Sun , Haojie Li

Recently, graph prompt learning has garnered increasing attention in adapting pre-trained GNN models for downstream graph learning tasks. However, existing works generally conduct prompting over all graph elements (e.g., nodes, edges, node…

Machine Learning · Computer Science 2024-10-30 Bo Jiang , Hao Wu , Beibei Wang , Jin Tang , Bin Luo

Session-based recommendation seeks to forecast the next item a user will be interested in, based on their interaction sequences. Due to limited interaction data, session-based recommendation faces the challenge of limited data availability.…

Information Retrieval · Computer Science 2024-12-17 Tiantian Liang , Zhe Yang

Graph Neural Networks (GNNs) have achieved great successes in many learning tasks performed on graph structures. Nonetheless, to propagate information GNNs rely on a message passing scheme which can become prohibitively expensive when…

Machine Learning · Computer Science 2022-11-09 Ariel R. Ramos Vela , Johannes F. Lutzeyer , Anastasios Giovanidis , Michalis Vazirgiannis

Recently, researchers utilize Knowledge Graph (KG) as side information in recommendation system to address cold start and sparsity issue and improve the recommendation performance. Existing KG-aware recommendation model use the feature of…

Information Retrieval · Computer Science 2019-08-20 Chang-You Tai , Meng-Ru Wu , Yun-Wei Chu , Shao-Yu Chu

While deep-learning-enabled recommender systems demonstrate strong performance benchmarks, many struggle to adapt effectively in real-world environments due to limited use of user-item relationship data and insufficient transparency in…

Machine Learning · Computer Science 2025-01-09 Dong Hyun Jeon , Wenbo Sun , Houbing Herbert Song , Dongfang Liu , Velasquez Alvaro , Yixin Chloe Xie , Shuteng Niu

Lightweight model design has become an important direction in the application of deep learning technology, pruning is an effective mean to achieve a large reduction in model parameters and FLOPs. The existing neural network pruning methods…

Machine Learning · Computer Science 2021-11-19 Zhuangzhi Chen , Jingyang Xiang , Yao Lu , Qi Xuan , Xiaoniu Yang

Recently, sign-aware graph recommendation has drawn much attention as it will learn users' negative preferences besides positive ones from both positive and negative interactions (i.e., links in a graph) with items. To accommodate the…

Information Retrieval · Computer Science 2024-03-14 Yuting Liu , Yizhou Dang , Yuliang Liang , Qiang Liu , Guibing Guo , Jianzhe Zhao , Xingwei Wang
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