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To inhibit the spread of rumorous information and its severe consequences, traditional fact checking aims at retrieving relevant evidence to verify the veracity of a given claim. Fact checking methods typically use knowledge graphs (KGs) as…

Artificial Intelligence · Computer Science 2024-07-30 Shuai Wang , Penghui Wei , Qingchao Kong , Wenji Mao

Large Language Models (LLMs) and Knowledge Graphs (KGs) offer a promising approach to robust and explainable Question Answering (QA). While LLMs excel at natural language understanding, they suffer from knowledge gaps and hallucinations.…

Machine Learning · Computer Science 2025-04-15 Jasper Linders , Jakub M. Tomczak

Traditional recommender systems (RS) typically use user-item rating histories as their main data source. However, deep generative models now have the capability to model and sample from complex data distributions, including user-item…

Multimodal recommendation systems have attracted increasing attention for their improved performance by leveraging items' multimodal information. Prior methods often build modality-specific item-item semantic graphs from raw modality…

Information Retrieval · Computer Science 2025-08-11 Xiaoxiong Zhang , Xin Zhou , Zhiwei Zeng , Dusit Niyato , Zhiqi Shen

News articles usually contain knowledge entities such as celebrities or organizations. Important entities in articles carry key messages and help to understand the content in a more direct way. An industrial news recommender system contains…

Information Retrieval · Computer Science 2020-09-15 Danyang Liu , Jianxun Lian , Shiyin Wang , Ying Qiao , Jiun-Hung Chen , Guangzhong Sun , Xing Xie

In today's rapidly evolving landscape of Artificial Intelligence, large language models (LLMs) have emerged as a vibrant research topic. LLMs find applications in various fields and contribute significantly. Despite their powerful language…

Computation and Language · Computer Science 2024-09-10 Tuan Bui , Oanh Tran , Phuong Nguyen , Bao Ho , Long Nguyen , Thang Bui , Tho Quan

Recommendation systems predominantly utilize two-tower architectures, which evaluate user-item rankings through the inner product of their respective embeddings. However, one key limitation of two-tower models is that they learn a…

In the last years, deep learning has shown to be a game-changing technology in artificial intelligence thanks to the numerous successes it reached in diverse application fields. Among others, the use of deep learning for the recommendation…

Information Retrieval · Computer Science 2018-07-16 Vito Bellini , Angelo Schiavone , Tommaso Di Noia , Azzurra Ragone , Eugenio Di Sciascio

Recommender systems (RecSys) play a vital role in online platforms, offering users personalized suggestions amidst vast information. Graph contrastive learning aims to learn from high-order collaborative filtering signals with unsupervised…

Information Retrieval · Computer Science 2024-04-29 Weizhi Zhang , Liangwei Yang , Zihe Song , Henry Peng Zou , Ke Xu , Yuanjie Zhu , Philip S. Yu

Knowledge graph completion (KGC) tasks aim to infer missing facts in a knowledge graph (KG) for many knowledge-intensive applications. However, existing embedding-based KGC approaches primarily rely on factual triples, potentially leading…

Artificial Intelligence · Computer Science 2024-10-08 Guanglin Niu , Bo Li , Siling Feng

Personalized messaging plays an essential role in improving communication in areas such as healthcare, education, and professional engagement. This paper introduces a framework that uses the Knowledge Graph (KG) to dynamically rephrase…

Artificial Intelligence · Computer Science 2025-03-19 Rajeev Kumar , Harishankar Kumar , Kumari Shalini

Sequential Recommendation is a widely studied paradigm for learning users' dynamic interests from historical interactions for predicting the next potential item. Although lots of research work has achieved remarkable progress, they are…

Information Retrieval · Computer Science 2023-03-02 Yongqiang Han , Likang Wu , Hao Wang , Guifeng Wang , Mengdi Zhang , Zhi Li , Defu Lian , Enhong Chen

Context-aware recommender systems (CARSs) apply sensing and analysis of user context in order to provide personalized services. Adding context to a recommendation model is challenging, since the addition of context may increases both the…

Machine Learning · Computer Science 2020-08-07 Amit Livne , Moshe Unger , Bracha Shapira , Lior Rokach

With the recent surge in social applications relying on knowledge graphs, the need for techniques to ensure fairness in KG based methods is becoming increasingly evident. Previous works have demonstrated that KGs are prone to various social…

Artificial Intelligence · Computer Science 2021-09-23 Daphna Keidar , Mian Zhong , Ce Zhang , Yash Raj Shrestha , Bibek Paudel

Knowledge Graph (KG) is a graph based data structure to represent facts of the world where nodes represent real world entities or abstract concept and edges represent relation between the entities. Graph as representation for knowledge has…

Social and Information Networks · Computer Science 2024-04-16 Manita Pote

This paper presents $\mu\text{KG}$, an open-source Python library for representation learning over knowledge graphs. $\mu\text{KG}$ supports joint representation learning over multi-source knowledge graphs (and also a single knowledge…

Computation and Language · Computer Science 2022-07-29 Xindi Luo , Zequn Sun , Wei Hu

Entity alignment is a basic and vital technique in knowledge graph (KG) integration. Over the years, research on entity alignment has resided on the assumption that KGs are static, which neglects the nature of growth of real-world KGs. As…

Computation and Language · Computer Science 2022-07-26 Yuxin Wang , Yuanning Cui , Wenqiang Liu , Zequn Sun , Yiqiao Jiang , Kexin Han , Wei Hu

Knowledge Graphs (KGs) have been popularized during the last decade, for instance, they are used widely in the context of the web. In 2012 Google has presented the Google's Knowledge Graph that is used to improve their web search services.…

Databases · Computer Science 2022-08-17 Elwin Huaman

Previous works on knowledge-to-text generation take as input a few RDF triples or key-value pairs conveying the knowledge of some entities to generate a natural language description. Existing datasets, such as WIKIBIO, WebNLG, and E2E,…

Computation and Language · Computer Science 2020-10-27 Liying Cheng , Dekun Wu , Lidong Bing , Yan Zhang , Zhanming Jie , Wei Lu , Luo Si

Conversational recommender systems (CRSs) aim to proactively capture user preferences through natural language dialogue and recommend high-quality items. To achieve this, CRS gathers user preferences via a dialog module and builds user…

Artificial Intelligence · Computer Science 2025-11-12 Zhenye Yang , Jinpeng Chen , Huan Li , Xiongnan Jin , Xuanyang Li , Junwei Zhang , Hongbo Gao , Kaimin Wei , Senzhang Wang