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Fact-checking is a crucial task as it ensures the prevention of misinformation. However, manual fact-checking cannot keep up with the rate at which false information is generated and disseminated online. Automated fact-checking by machines…

Artificial Intelligence · Computer Science 2023-10-12 Gustav Nikopensius , Mohit Mayank , Orchid Chetia Phukan , Rajesh Sharma

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

Recent advances in Large Language Models (LLMs) have driven their adoption in recommender systems through Retrieval-Augmented Generation (RAG) frameworks. However, existing RAG approaches predominantly rely on flat, similarity-based…

Information Retrieval · Computer Science 2025-06-10 Vahid Azizi , Fatemeh Koochaki

We study a conversational recommendation model which dynamically manages users' past (offline) preferences and current (online) requests through a structured and cumulative user memory knowledge graph, to allow for natural interactions and…

Computation and Language · Computer Science 2020-06-02 Hu Xu , Seungwhan Moon , Honglei Liu , Bing Liu , Pararth Shah , Bing Liu , Philip S. Yu

In the last few years, the solution to Knowledge Graph (KG) completion via learning embeddings of entities and relations has attracted a surge of interest. Temporal KGs(TKGs) extend traditional Knowledge Graphs (KGs) by associating static…

Artificial Intelligence · Computer Science 2023-02-14 Zhongwu Chen , Chengjin Xu , Fenglong Su , Zhen Huang , You Dou

The takeaway recommendation system aims to recommend users' future takeaway purchases based on their historical purchase behaviors, thereby improving user satisfaction and boosting merchant sales. Existing methods focus on incorporating…

Machine Learning · Computer Science 2025-02-06 Shuyuan Zhao , Wei Chen , Boyan Shi , Liyong Zhou , Shuohao Lin , Huaiyu Wan

Using knowledge graphs to assist deep learning models in making recommendation decisions has recently been proven to effectively improve the model's interpretability and accuracy. This paper introduces an end-to-end deep learning model,…

Information Retrieval · Computer Science 2024-04-11 Chen Li , Yang Cao , Ye Zhu , Debo Cheng , Chengyuan Li , Yasuhiko Morimoto

Traditional recommendation proposals, including content-based and collaborative filtering, usually focus on similarity between items or users. Existing approaches lack ways of introducing unexpectedness into recommendations, prioritizing…

Information Retrieval · Computer Science 2024-05-15 Oliver Baumann , Durgesh Nandini , Anderson Rossanez , Mirco Schoenfeld , Julio Cesar dos Reis

Recently, graph neural networks (GNNs) have been widely used to develop successful recommender systems. Although powerful, it is very difficult for a GNN-based recommender system to attach tangible explanations of why a specific item ends…

Information Retrieval · Computer Science 2022-08-09 Ziheng Chen , Fabrizio Silvestri , Jia Wang , Yongfeng Zhang , Zhenhua Huang , Hongshik Ahn , Gabriele Tolomei

Random walks on bipartite networks have been used extensively to design personalized recommendation methods. While aging has been identified as a key component in the growth of information networks, most research has focused on the…

Information Retrieval · Computer Science 2017-02-22 Alexandre Vidmer , Matus Medo

Compared with only pursuing recommendation accuracy, the explainability of a recommendation model has drawn more attention in recent years. Many graph-based recommendations resort to informative paths with the attention mechanism for the…

Information Retrieval · Computer Science 2024-03-05 Yicong Li , Xiangguo Sun , Hongxu Chen , Sixiao Zhang , Yu Yang , Guandong Xu

Recently there is an increasing scholarly interest in time-varying knowledge graphs, or temporal knowledge graphs (TKG). Previous research suggests diverse approaches to TKG reasoning that uses historical information. However, less…

Machine Learning · Computer Science 2022-09-14 Jihoon Sohn , Mingyu Derek Ma , Muhao Chen

Knowledge graph (KG) based Collaborative Filtering is an effective approach to personalizing recommendation systems for relatively static domains such as movies and books, by leveraging structured information from KG to enrich both item and…

Information Retrieval · Computer Science 2022-04-05 Weizhe Lin , Linjun Shou , Ming Gong , Pei Jian , Zhilin Wang , Bill Byrne , Daxin Jiang

Recommender system (RS) devotes to predicting user preference to a given item and has been widely deployed in most web-scale applications. Recently, knowledge graph (KG) attracts much attention in RS due to its abundant connective…

Information Retrieval · Computer Science 2020-05-28 Yufei Feng , Binbin Hu , Fuyu Lv , Qingwen Liu , Zhiqiang Zhang , Wenwu Ou

Temporal knowledge graphs (TKGs) have been identified as a promising approach to represent the dynamics of facts along the timeline. The extrapolation of TKG is to predict unknowable facts happening in the future, holding significant…

Artificial Intelligence · Computer Science 2023-12-05 Wei Chen , Huaiyu Wan , Yuting Wu , Shuyuan Zhao , Jiayaqi Cheng , Yuxin Li , Youfang Lin

Growing interests have been attracted in Conversational Recommender Systems (CRS), which explore user preference through conversational interactions in order to make appropriate recommendation. However, there is still a lack of ability in…

Computation and Language · Computer Science 2021-09-06 Wenchang Ma , Ryuichi Takanobu , Minlie Huang

Reasoning over knowledge graphs (KGs) is a challenging task that requires a deep understanding of the complex relationships between entities and the underlying logic of their relations. Current approaches rely on learning geometries to…

Logic in Computer Science · Computer Science 2024-04-02 Nurendra Choudhary , Chandan K. Reddy

Path-based explanations provide intrinsic insights into graph-based recommendation models. However, most previous work has focused on explaining an individual recommendation of an item to a user. In this paper, we propose summary…

Artificial Intelligence · Computer Science 2024-12-10 Danae Pla Karidi , Evaggelia Pitoura

Temporal Knowledge Graphs (TKGs) have been developed and used in many different areas. Reasoning on TKGs that predicts potential facts (events) in the future brings great challenges to existing models. When facing a prediction task, human…

Artificial Intelligence · Computer Science 2021-06-02 Zixuan Li , Xiaolong Jin , Saiping Guan , Wei Li , Jiafeng Guo , Yuanzhuo Wang , Xueqi Cheng

In this paper, we propose a novel graph neural network-based recommendation model called KGLN, which leverages Knowledge Graph (KG) information to enhance the accuracy and effectiveness of personalized recommendations. We first use a…

Information Retrieval · Computer Science 2024-02-06 Chaoyang Zhang , Yanan Li , Shen Chen , Siwei Fan , Wei Li