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Large language models (LLMs) like Claude, Mistral IA, and GPT-4 excel in NLP but lack structured knowledge, leading to factual inconsistencies. We address this by integrating Knowledge Graphs (KGs) via KG-BERT to enhance grounding and…

Computation and Language · Computer Science 2025-12-12 Nour El Houda Ben Chaabene , Hamza Hammami

Knowledge-enhanced language representation learning has shown promising results across various knowledge-intensive NLP tasks. However, prior methods are limited in efficient utilization of multilingual knowledge graph (KG) data for language…

Computation and Language · Computer Science 2022-10-20 Linlin Liu , Xin Li , Ruidan He , Lidong Bing , Shafiq Joty , Luo Si

Large Language Models (LLMs) have revolutionized the ability to understand and generate text, enabling significant progress in automatic knowledge graph construction from text (Text2KG). Many Text2KG methods, however, rely on iterative LLM…

Computation and Language · Computer Science 2025-12-04 Faezeh Faez , Marzieh S. Tahaei , Yaochen Hu , Ali Pourranjbar , Mahdi Biparva , Mark Coates , Yingxue Zhang

In real world applications, knowledge graphs (KG) are widely used in various domains (e.g. medical applications and dialogue agents). However, for fact verification, KGs have not been adequately utilized as a knowledge source. KGs can be a…

Computation and Language · Computer Science 2023-10-18 Jiho Kim , Sungjin Park , Yeonsu Kwon , Yohan Jo , James Thorne , Edward Choi

The generation of questions and answers (QA) from knowledge graphs (KG) plays a crucial role in the development and testing of educational platforms, dissemination tools, and large language models (LLM). However, existing approaches often…

Computation and Language · Computer Science 2025-11-17 Sania Nayab , Marco Simoni , Giulio Rossolini , Andrea Saracino

Large Language Models (LLMs) have showcased impressive reasoning abilities, but often suffer from hallucinations or outdated knowledge. Knowledge Graph (KG)-based Retrieval-Augmented Generation (RAG) remedies these shortcomings by grounding…

Information Retrieval · Computer Science 2025-05-29 Martin Böckling , Heiko Paulheim , Andreea Iana

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

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

Machine Learning has been the quintessential solution for many AI problems, but learning is still heavily dependent on the specific training data. Some learning models can be incorporated with a prior knowledge in the Bayesian set up, but…

Computation and Language · Computer Science 2018-05-22 K M Annervaz , Somnath Basu Roy Chowdhury , Ambedkar Dukkipati

A backbone of knowledge graphs are their class membership relations, which assign entities to a given class. As part of the knowledge engineering process, we propose a new method for evaluating the quality of these relations by processing…

Computation and Language · Computer Science 2024-04-29 Bradley P. Allen , Paul T. Groth

We introduce EventNarrative, a knowledge graph-to-text dataset from publicly available open-world knowledge graphs. Given the recent advances in event-driven Information Extraction (IE), and that prior research on graph-to-text only focused…

Computation and Language · Computer Science 2022-04-15 Anthony Colas , Ali Sadeghian , Yue Wang , Daisy Zhe Wang

Mastering educational concepts requires understanding both their prerequisites (e.g., recursion before merge sort) and sub-concepts (e.g., merge sort as part of sorting algorithms). Capturing these dependencies is critical for identifying…

Artificial Intelligence · Computer Science 2026-02-20 Abdulrahman AlRabah , Priyanka Kargupta , Jiawei Han , Abdussalam Alawini

We propose an ontology-grounded approach to Knowledge Graph (KG) construction using Large Language Models (LLMs) on a knowledge base. An ontology is authored by generating Competency Questions (CQ) on knowledge base to discover knowledge…

Artificial Intelligence · Computer Science 2024-12-31 Xiaohan Feng , Xixin Wu , Helen Meng

Integrating structured knowledge from Knowledge Graphs (KGs) into Large Language Models (LLMs) remains a key challenge for symbolic reasoning. Existing methods mainly rely on prompt engineering or fine-tuning, which lose structural fidelity…

Machine Learning · Computer Science 2025-05-13 Erica Coppolillo

Graph-RAG constructs a knowledge graph from text chunks to improve retrieval in Large Language Model (LLM)-based question answering. It is particularly useful in domains such as biomedicine, law, and political science, where retrieval often…

Information Retrieval · Computer Science 2025-06-04 Yiqian Huang , Shiqi Zhang , Xiaokui Xiao

Question answering (QA) is a core challenge in AI, particularly for complex queries requiring multi-hop reasoning across documents, or symbolic operations like aggregation or exhaustive listing. Retrieval-augmented generation has become the…

Artificial Intelligence · Computer Science 2026-05-29 Lorenzo Loconte , Timothy Hospedales , Cristina Cornelio

A mathematical knowledge graph (KG) presents knowledge within the field of mathematics in a structured manner. Constructing a math KG using natural language is an essential but challenging task. There are two major limitations of existing…

Artificial Intelligence · Computer Science 2025-05-20 Rong Bian , Yu Geng , Zijian Yang , Bing Cheng

Knowledge graph (KG) question generation (QG) aims to generate natural language questions from KGs and target answers. Previous works mostly focus on a simple setting which is to generate questions from a single KG triple. In this work, we…

Computation and Language · Computer Science 2023-05-02 Yu Chen , Lingfei Wu , Mohammed J. Zaki

Temporal Knowledge Graph (TKG) completion models traditionally assume access to the entire graph during training. This overlooks challenges stemming from the evolving nature of TKGs, such as: (i) the model's requirement to generalize and…

Artificial Intelligence · Computer Science 2025-07-28 Mehrnoosh Mirtaheri , Ryan A. Rossi , Sungchul Kim , Kanak Mahadik , Tong Yu , Xiang Chen , Mohammad Rostami

Knowledge Graph (KG) and its variant of ontology have been widely used for knowledge representation, and have shown to be quite effective in augmenting Zero-shot Learning (ZSL). However, existing ZSL methods that utilize KGs all neglect the…

Artificial Intelligence · Computer Science 2022-06-09 Yuxia Geng , Jiaoyan Chen , Wen Zhang , Yajing Xu , Zhuo Chen , Jeff Z. Pan , Yufeng Huang , Feiyu Xiong , Huajun Chen