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Large Language Models (LLMs) excel at language understanding but remain limited in knowledge-intensive domains due to hallucinations, outdated information, and limited explainability. Text-based retrieval-augmented generation (RAG) helps…

Computation and Language · Computer Science 2026-02-09 Larissa Pusch , Alexandre Courtiol , Tim Conrad

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

Large Language Models (LLMs) have impressive capabilities in text understanding and zero-shot reasoning. However, delays in knowledge updates may cause them to reason incorrectly or produce harmful results. Knowledge Graphs (KGs) provide…

Artificial Intelligence · Computer Science 2025-04-07 Tu Ao , Yanhua Yu , Yuling Wang , Yang Deng , Zirui Guo , Liang Pang , Pinghui Wang , Tat-Seng Chua , Xiao Zhang , Zhen Cai

It is crucial to automatically construct knowledge graphs (KGs) of diverse new relations to support knowledge discovery and broad applications. Previous KG construction methods, based on either crowdsourcing or text mining, are often…

Computation and Language · Computer Science 2023-06-05 Shibo Hao , Bowen Tan , Kaiwen Tang , Bin Ni , Xiyan Shao , Hengzhe Zhang , Eric P. Xing , Zhiting Hu

Injecting textual information into knowledge graph (KG) entity representations has been a worthwhile expedition in terms of improving performance in KG oriented tasks within the NLP community. External knowledge often adopted to enhance KG…

Computation and Language · Computer Science 2023-10-26 Micheal Abaho , Yousef H. Alfaifi

Knowledge Graph Completion (KGC) aims at automatically predicting missing links for large-scale knowledge graphs. A vast number of state-of-the-art KGC techniques have got published at top conferences in several research fields, including…

Computation and Language · Computer Science 2020-07-10 Zhiqing Sun , Shikhar Vashishth , Soumya Sanyal , Partha Talukdar , Yiming Yang

Ontologies have been known for their semantic representation of knowledge. ontologies cannot automatically evolve to reflect updates that occur in respective domains. To address this limitation, researchers have called for automatic…

Artificial Intelligence · Computer Science 2022-01-19 Samaa Elnagar , Victoria Yoon , Manoj A. Thomas

Open Knowledge Graphs (such as DBpedia, Wikidata, YAGO) have been recognized as the backbone of diverse applications in the field of data mining and information retrieval. Hence, the completeness and correctness of the Knowledge Graphs…

Computation and Language · Computer Science 2020-05-07 Russa Biswas , Radina Sofronova , Mehwish Alam , Harald Sack

Knowledge Graph Completion (KGC) aims to infer missing information in Knowledge Graphs (KGs) to address their inherent incompleteness. Traditional structure-based KGC methods, while effective, face significant computational demands and…

Computation and Language · Computer Science 2025-04-01 Jianfang Chen , Kai Zhang , Aoran Gan , Shiwei Tong , Shuanghong Shen , Qi Liu

Recent advancements have witnessed the ascension of Large Language Models (LLMs), endowed with prodigious linguistic capabilities, albeit marred by shortcomings including factual inconsistencies and opacity. Conversely, Knowledge Graphs…

Information Retrieval · Computer Science 2024-07-29 DaiFeng Li , Fan Xu

Recently decades have witnessed the empirical success of framing Knowledge Graph (KG) embeddings via language models. However, language model-based KG embeddings are usually deployed as static artifacts, making them difficult to modify…

Computation and Language · Computer Science 2023-12-29 Siyuan Cheng , Ningyu Zhang , Bozhong Tian , Xi Chen , Qingbing Liu , Huajun Chen

Large Language Models (LLMs) demonstrate strong reasoning abilities but face limitations such as hallucinations and outdated knowledge. Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) addresses these issues by grounding LLM…

Computation and Language · Computer Science 2025-03-04 Mufei Li , Siqi Miao , Pan Li

We propose a method to make natural language understanding models more parameter efficient by storing knowledge in an external knowledge graph (KG) and retrieving from this KG using a dense index. Given (possibly multilingual) downstream…

Computation and Language · Computer Science 2022-06-28 Ningyuan Huang , Yash R. Deshpande , Yibo Liu , Houda Alberts , Kyunghyun Cho , Clara Vania , Iacer Calixto

Knowledge Graphs (KGs) have been used to support a wide range of applications, from web search to personal assistant. In this paper, we describe three generations of knowledge graphs: entity-based KGs, which have been supporting general…

Databases · Computer Science 2023-08-29 Xin Luna Dong

Knowledge graph completion aims to address the problem of extending a KG with missing triples. In this paper, we provide an approach GenKGC, which converts knowledge graph completion to sequence-to-sequence generation task with the…

Computation and Language · Computer Science 2023-03-15 Xin Xie , Ningyu Zhang , Zhoubo Li , Shumin Deng , Hui Chen , Feiyu Xiong , Mosha Chen , Huajun Chen

Current generative knowledge graph construction approaches usually fail to capture structural knowledge by simply flattening natural language into serialized texts or a specification language. However, large generative language model…

Computation and Language · Computer Science 2024-01-19 Zhen Bi , Jing Chen , Yinuo Jiang , Feiyu Xiong , Wei Guo , Huajun Chen , Ningyu Zhang

Citation recommendation for research papers is a valuable task that can help researchers improve the quality of their work by suggesting relevant related work. Current approaches for this task rely primarily on the text of the papers and…

Digital Libraries · Computer Science 2021-06-11 Arthur Brack , Anett Hoppe , Ralph Ewerth

Embedding based Knowledge Graph (KG) Completion has gained much attention over the past few years. Most of the current algorithms consider a KG as a multidirectional labeled graph and lack the ability to capture the semantics underlying the…

Artificial Intelligence · Computer Science 2024-07-12 Mehwish Alam , Frank van Harmelen , Maribel Acosta

Knowledge Graphs (KGs) are structured knowledge repositories containing entities and relations between them. In this paper, we study the problem of automatically updating KGs over time in response to evolving knowledge in unstructured…

Computation and Language · Computer Science 2026-04-08 Klim Zaporojets , Daniel Daza , Edoardo Barba , Ira Assent , Roberto Navigli , Paul Groth

With the advance of natural language inference (NLI), a rising demand for NLI is to handle scientific texts. Existing methods depend on pre-trained models (PTM) which lack domain-specific knowledge. To tackle this drawback, we introduce a…

Computation and Language · Computer Science 2022-10-31 Chenglin Wang , Yucheng Zhou , Guodong Long , Xiaodong Wang , Xiaowei Xu
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