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相关论文: An Efficient Recommendation Model Based on Knowled…

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Interactive recommendation aims to learn from dynamic interactions between items and users to achieve responsiveness and accuracy. Reinforcement learning is inherently advantageous for coping with dynamic environments and thus has attracted…

信息检索 · 计算机科学 2020-12-02 Xiaocong Chen , Chaoran Huang , Lina Yao , Xianzhi Wang , Wei Liu , Wenjie Zhang

Knowledge graph question answering (KGQA) based on information retrieval aims to answer a question by retrieving answer from a large-scale knowledge graph. Most existing methods first roughly retrieve the knowledge subgraphs (KSG) that may…

计算与语言 · 计算机科学 2022-10-06 Hanning Gao , Lingfei Wu , Po Hu , Zhihua Wei , Fangli Xu , Bo Long

In the contemporary age characterized by information abundance, rapid advancements in artificial intelligence have rendered recommendation systems indispensable. Conventional recommendation methodologies based on collaborative filtering or…

信息检索 · 计算机科学 2025-09-04 Yu Fang

Graph representation learning methods have been widely adopted in financial applications to enhance company representations by leveraging inter-firm relationships. However, current approaches face three key challenges: (1) The advantages of…

统计金融 · 定量金融 2025-07-04 Yingjie Niu , Mingchuan Zhao , Valerio Poti , Ruihai Dong

Recently, deep neural network models for graph-structured data have been demonstrating to be influential in recommendation systems. Graph Neural Network (GNN), which can generate high-quality embeddings by capturing graph-structured…

社会与信息网络 · 计算机科学 2021-03-11 Ziheng Duan , Yueyang Wang , Weihao Ye , Zixuan Feng , Qilin Fan , Xiuhua Li

In recent years, the use of edge information provided by knowledge graphs together with the advantages of higher-order connectivity in graph neural networks for recommendation systems has become an important research direction. However,…

信息检索 · 计算机科学 2026-05-12 Zhifei Hu , Feng Xia

This study aims to improve knowledge-based question-answering (QA) systems by overcoming the limitations of existing Retrieval-Augmented Generation (RAG) models and implementing an advanced RAG system based on Graph technology to develop…

人工智能 · 计算机科学 2024-10-04 Cheonsu Jeong

Knowledge graphs (KGs) have been widely adopted to mitigate data sparsity and address cold-start issues in recommender systems. While existing KGs-based recommendation methods can predict user preferences and demands, they fall short in…

信息检索 · 计算机科学 2024-08-07 Shangfei Zheng , Hongzhi Yin , Tong Chen , Xiangjie Kong , Jian Hou , Pengpeng Zhao

Knowledge Graph (KG) and attention mechanism have been demonstrated effective in introducing and selecting useful information for weakly supervised methods. However, only qualitative analysis and ablation study are provided as evidence. In…

计算与语言 · 计算机科学 2021-11-19 Zikun Hu , Yixin Cao , Lifu Huang , Tat-Seng Chua

Knowledge graph completion (KGC) has become a focus of attention across deep learning community owing to its excellent contribution to numerous downstream tasks. Although recently have witnessed a surge of work on KGC, they are still…

人工智能 · 计算机科学 2021-10-12 Junkang Wu , Wentao Shi , Xuezhi Cao , Jiawei Chen , Wenqiang Lei , Fuzheng Zhang , Wei Wu , Xiangnan He

Large language models with retrieval-augmented generation encounter a pivotal challenge in intricate retrieval tasks, e.g., multi-hop question answering, which requires the model to navigate across multiple documents and generate…

信息检索 · 计算机科学 2025-05-06 Weijie Chen , Ting Bai , Jinbo Su , Jian Luan , Wei Liu , Chuan Shi

As the rapid development of Intelligent Tutoring Systems (ITS) in the past decade, tracing the students' knowledge state has become more and more important in order to provide individualized learning guidance. This is the main idea of…

计算机与社会 · 计算机科学 2023-05-18 Zhongfeng Jia , Wei Su , Jiamin Liu , Wenli Yue

In recent years recommendation systems typically employ the edge information provided by knowledge graphs combined with the advantages of high-order connectivity of graph networks in the recommendation field. However, this method is limited…

信息检索 · 计算机科学 2025-02-24 Feng Xia , Zhifei Hu

This work explores unifying knowledge enhanced recommendation with multi-domain recommendation systems in a conversational AI assistant application. Multi-domain recommendation leverages users' interactions in previous domains to improve…

信息检索 · 计算机科学 2025-03-26 Elan Markowitz , Ziyan Jiang , Fan Yang , Xing Fan , Tony Chen , Greg Ver Steeg , Aram Galstyan

Knowledge graph embedding methods learn embeddings of entities and relations in a low dimensional space which can be used for various downstream machine learning tasks such as link prediction and entity matching. Various graph convolutional…

机器学习 · 计算机科学 2021-02-16 Nasrullah Sheikh , Xiao Qin , Berthold Reinwald , Christoph Miksovic , Thomas Gschwind , Paolo Scotton

Existing research usually utilizes side information such as social network or item attributes to improve the performance of collaborative filtering-based recommender systems. In this paper, the knowledge graph with user perception is used…

信息检索 · 计算机科学 2022-10-10 Yuyao Zeng , Junping Du , Zhe Xue , Ang Li

This paper studies graph-based recommendation, where an interaction graph is constructed from historical records and is lever-aged to alleviate data sparsity and cold start problems. We reveal an early summarization problem in existing…

信息检索 · 计算机科学 2020-02-17 Yanru Qu , Ting Bai , Weinan Zhang , Jianyun Nie , Jian Tang

Retrieval-Augmented Generation (RAG) enhances language models by grounding responses in external information, yet explainability remains a critical challenge, particularly when retrieval relies on unstructured text. Knowledge graphs (KGs)…

机器学习 · 计算机科学 2025-07-14 Georgios Balanos , Evangelos Chasanis , Konstantinos Skianis , Evaggelia Pitoura

Knowledge graphs have proven to be effective for modeling entities and their relationships through the use of ontologies. The recent emergence in interest for using knowledge graphs as a form of information modeling has led to their…

人工智能 · 计算机科学 2023-07-21 Ngoc Luyen Le , Marie-Hélène Abel , Philippe Gouspillou

The remarkable progress of network embedding has led to state-of-the-art algorithms in recommendation. However, the sparsity of user-item interactions (i.e., explicit preferences) on websites remains a big challenge for predicting users'…

信息检索 · 计算机科学 2019-07-30 Jun Zhao , Zhou Zhou , Ziyu Guan , Wei Zhao , Wei Ning , Guang Qiu , Xiaofei He