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With the popularity of social media, an increasing number of users are joining group activities on online social platforms. This elicits the requirement of group identification (GI), which is to recommend groups to users. We reveal that…

Social and Information Networks · Computer Science 2025-06-19 Rui Zhao , Beihong Jin , Beibei Li , Yiyuan Zheng

In this paper, we consider advancing web-scale knowledge extraction and alignment by integrating OpenIE extractions in the form of (subject, predicate, object) triples with Knowledge Bases (KB). Traditional techniques from universal schema…

Information Retrieval · Computer Science 2019-04-30 Dongxu Zhang , Subhabrata Mukherjee , Colin Lockard , Xin Luna Dong , Andrew McCallum

When knowledge graphs (KGs) are automatically extracted from text, are they accurate enough for downstream analysis? Unfortunately, current annotated datasets can not be used to evaluate this question, since their KGs are highly…

Computation and Language · Computer Science 2025-05-19 Erica Cai , Sean McQuade , Kevin Young , Brendan O'Connor

In this research, we combine Transformer-based relation extraction with matching of knowledge graphs (KGs) and apply them to answering multiple-choice questions (MCQs) while maintaining the traceability of the output process. KGs are…

Computation and Language · Computer Science 2025-11-19 Naoki Shimoda , Akihiro Yamamoto

Relation extraction (RE) aims to predict a relation between a subject and an object in a sentence, while knowledge graph link prediction (KGLP) aims to predict a set of objects, O, given a subject and a relation from a knowledge graph.…

Computation and Language · Computer Science 2020-12-10 George Stoica , Emmanouil Antonios Platanios , Barnabás Póczos

Large Language Models (LLMs) have demonstrated strong capabilities in web search and reasoning. However, their dependence on static training corpora makes them prone to factual errors and knowledge gaps. Retrieval-Augmented Generation (RAG)…

Artificial Intelligence · Computer Science 2026-01-26 Jiasheng Xu , Mingda Li , Yongqiang Tang , Peijie Wang , Wensheng Zhang

Although information extraction and coreference resolution appear together in many applications, most current systems perform them as ndependent steps. This paper describes an approach to integrated inference for extraction and coreference…

Machine Learning · Computer Science 2012-07-19 Ben Wellner , Andrew McCallum , Fuchun Peng , Michael Hay

Decentralized collaborative learning for Point-of-Interest (POI) recommendation has gained research interest due to its advantages in privacy preservation and efficiency, as it keeps data locally and leverages collaborative learning among…

Information Retrieval · Computer Science 2024-10-15 Ruiqi Zheng , Liang Qu , Guanhua Ye , Tong Chen , Yuhui Shi , Hongzhi Yin

Retrieval-Augmented Generation (RAG) models excel in knowledge-intensive tasks, especially under few-shot learning constraints. We introduce CoRAG, a framework extending RAG to collaborative settings, where clients jointly train a shared…

Artificial Intelligence · Computer Science 2025-04-03 Aashiq Muhamed , Mona Diab , Virginia Smith

E-Commerce customer support requires quick and accurate answers grounded in product data and past support cases. This paper develops a novel retrieval-augmented generation (RAG) framework that uses knowledge graphs (KGs) to improve the…

Computation and Language · Computer Science 2025-09-19 Piyushkumar Patel

With the abundant amount of available online and offline text data, there arises a crucial need to extract the relation between phrases and summarize the main content of each document in a few words. For this purpose, there have been many…

Information Retrieval · Computer Science 2023-10-19 Serafina Kamp , Morteza Fayazi , Zineb Benameur-El , Shuyan Yu , Ronald Dreslinski

Graphs can represent relational information among entities and graph structures are widely used in many intelligent tasks such as search, recommendation, and question answering. However, most of the graph-structured data in practice suffers…

Information Retrieval · Computer Science 2021-12-30 Hanxiong Chen , Yunqi Li , Shaoyun Shi , Shuchang Liu , He Zhu , Yongfeng Zhang

Despite advancements in Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG) systems, their effectiveness is often hindered by a lack of integration with entity relationships and community structures, limiting their ability…

Computation and Language · Computer Science 2024-08-19 Rong-Ching Chang , Jiawei Zhang

In customer service technical support, swiftly and accurately retrieving relevant past issues is critical for efficiently resolving customer inquiries. The conventional retrieval methods in retrieval-augmented generation (RAG) for large…

Information Retrieval · Computer Science 2024-05-07 Zhentao Xu , Mark Jerome Cruz , Matthew Guevara , Tie Wang , Manasi Deshpande , Xiaofeng Wang , Zheng Li

Rule-based systems must solve complex matching problems within tight time constraints to be effective in real-time applications, such as planning and reactive control for AI agents, as well as low-latency relational database querying.…

Artificial Intelligence · Computer Science 2025-11-19 Daniel Weitekamp

Large language models (LLMs) achieve strong performance on plain text tasks but underperform on structured data like tables and databases. Potential challenges arise from their underexposure during pre-training and rigid text-to-structure…

Computation and Language · Computer Science 2025-07-28 Jiawei Gu , Ziting Xian , Yuanzhen Xie , Ye Liu , Enjie Liu , Ruichao Zhong , Mochi Gao , Yunzhi Tan , Bo Hu , Zang Li

Retrieval-Augmented Generation (RAG) has demonstrated strong effectiveness in knowledge-intensive tasks by grounding language generation in external evidence. Despite its success, many existing RAG systems are built based on a…

Computation and Language · Computer Science 2026-04-27 Lichang Song , Ting Long , Yi Chang

Retrieval-Augmented Generation (RAG) enhances the response quality and domain-specific performance of large language models (LLMs) by incorporating external knowledge to combat hallucinations. In recent research, graph structures have been…

Information Retrieval · Computer Science 2025-12-17 Hao Hu , Yifan Feng , Ruoxue Li , Rundong Xue , Xingliang Hou , Zhiqiang Tian , Yue Gao , Shaoyi Du

Document-level relation extraction (RE) aims to identify the relations between entities throughout an entire document. It needs complex reasoning skills to synthesize various knowledge such as coreferences and commonsense. Large-scale…

Computation and Language · Computer Science 2022-07-26 Xinyi Wang , Zitao Wang , Weijian Sun , Wei Hu

Knowledge graphs (KGs) have become important auxiliary information for helping recommender systems obtain a good understanding of user preferences. Despite recent advances in KG-based recommender systems, existing methods are prone to…

Information Retrieval · Computer Science 2023-04-25 Xuhui Ren , Wei Yuan , Tong Chen , Chaoqun Yang , Quoc Viet Hung Nguyen , Hongzhi Yin