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Knowledge Graph Question Answering (KGQA) aims to answer user-questions from a knowledge graph (KG) by identifying the reasoning relations between topic entity and answer. As a complex branch task of KGQA, multi-hop KGQA requires reasoning…

Computation and Language · Computer Science 2022-11-15 Weiqiang Jin , Biao Zhao , Hang Yu , Xi Tao , Ruiping Yin , Guizhong Liu

Synthesizing high-quality training data is crucial for enhancing domain models' reasoning abilities. Existing methods face limitations in long-tail knowledge coverage, effectiveness verification, and interpretability. Knowledge-graph-based…

Artificial Intelligence · Computer Science 2026-03-02 Lun Zhan , Feng Xiong , Huanyong Liu , Feng Zhang , Yuhui Yin

Knowledge Graphs (KGs) are essential for the functionality of GraphRAGs, a form of Retrieval-Augmented Generative Systems (RAGs) that excel in tasks requiring structured reasoning and semantic understanding. However, creating KGs for…

Computation and Language · Computer Science 2024-12-11 Ahan Bhatt , Nandan Vaghela , Kush Dudhia

Knowledge Graph Question Answering (KGQA) has advanced through structured query generation, yet most efforts target RDF/SPARQL, leaving Cypher and property graphs underexplored, despite increasing demand for unified KGQA in industry…

Databases · Computer Science 2026-05-05 Mengying Wang , Nicolaas Jedema , Rahul Pandey , RaviKiran Krishnan , Jens Lehmann , Yinghui Wu

As the field of Large Language Models (LLMs) evolves at an accelerated pace, the critical need to assess and monitor their performance emerges. We introduce a benchmarking framework focused on knowledge graph engineering (KGE) accompanied…

Artificial Intelligence · Computer Science 2023-09-01 Lars-Peter Meyer , Johannes Frey , Kurt Junghanns , Felix Brei , Kirill Bulert , Sabine Gründer-Fahrer , Michael Martin

Knowledge Graph Embedding (KGE) techniques are crucial in learning compact representations of entities and relations within a knowledge graph, facilitating efficient reasoning and knowledge discovery. While existing methods typically focus…

Computation and Language · Computer Science 2024-10-29 Pengcheng Jiang , Lang Cao , Cao Xiao , Parminder Bhatia , Jimeng Sun , Jiawei Han

Large Language Models (LLMs) have excelled in multi-hop question-answering (M-QA) due to their advanced reasoning abilities. However, the impact of the inherent reasoning structures on LLM M-QA performance remains unclear, largely due to…

Currently, the main approach for Large Language Models (LLMs) to tackle the hallucination issue is incorporating Knowledge Graphs(KGs).However, LLMs typically treat KGs as plain text, extracting only semantic information and limiting their…

Computation and Language · Computer Science 2025-09-29 Yifang Zhang , Pengfei Duan , Yiwen Yang , Shengwu Xiong

Knowledge graphs (KGs) have transformed data management within the manufacturing industry, offering effective means for integrating disparate data sources through shared and structured conceptual schemas. However, harnessing the power of…

Artificial Intelligence · Computer Science 2025-07-31 Sebastian Monka , Irlan Grangel-González , Stefan Schmid , Lavdim Halilaj , Marc Rickart , Oliver Rudolph , Rui Dias

Recent works on knowledge base question answering (KBQA) retrieve subgraphs for easier reasoning. A desired subgraph is crucial as a small one may exclude the answer but a large one might introduce more noises. However, the existing…

Computation and Language · Computer Science 2022-07-28 Jing Zhang , Xiaokang Zhang , Jifan Yu , Jian Tang , Jie Tang , Cuiping Li , Hong Chen

In the era of personalized education, the provision of comprehensible explanations for learning recommendations is of a great value to enhance the learner's understanding and engagement with the recommended learning content. Large language…

Artificial Intelligence · Computer Science 2025-01-23 Hasan Abu-Rasheed , Christian Weber , Madjid Fathi

Knowledge Graph Question Answering (KGQA) systems are based on machine learning algorithms, requiring thousands of question-answer pairs as training examples or natural language processing pipelines that need module fine-tuning. In this…

Artificial Intelligence · Computer Science 2022-02-03 Daniel Vollmers , Rricha Jalota , Diego Moussallem , Hardik Topiwala , Axel-Cyrille Ngonga Ngomo , Ricardo Usbeck

Large-scale pre-trained language models (PLMs) such as BERT have recently achieved great success and become a milestone in natural language processing (NLP). It is now the consensus of the NLP community to adopt PLMs as the backbone for…

Computation and Language · Computer Science 2023-03-21 Nan Hu , Yike Wu , Guilin Qi , Dehai Min , Jiaoyan Chen , Jeff Z. Pan , Zafar Ali

Knowledge graphs (KGs) have become a valuable asset for many AI applications. Although some KGs contain plenty of facts, they are widely acknowledged as incomplete. To address this issue, many KG completion methods are proposed. Among them,…

Information Retrieval · Computer Science 2022-01-24 Jiacheng Huang , Yao Zhao , Wei Hu , Zhen Ning , Qijin Chen , Xiaoxia Qiu , Chengfu Huo , Weijun Ren

Despite the rapid progress of large language models (LLMs), knowledge graph-based question answering (KGQA) remains essential for producing verifiable and hallucination-resistant answers in many real-world settings where answer…

Computation and Language · Computer Science 2026-01-21 Ruijie Wang , Luca Rossetto , Michael Cochez , Abraham Bernstein

Large language models (LLMs) have shown strong potential across a variety of tasks, but their application in the telecom field remains challenging due to domain complexity, evolving standards, and specialized terminology. Therefore,…

Artificial Intelligence · Computer Science 2026-02-20 Dun Yuan , Hao Zhou , Xue Liu , Hao Chen , Yan Xin , Jianzhong , Zhang

While multi-modal models have successfully integrated information from image, video, and audio modalities, integrating graph modality into large language models (LLMs) remains unexplored. This discrepancy largely stems from the inherent…

Computation and Language · Computer Science 2023-10-13 Yuanchun Shen , Ruotong Liao , Zhen Han , Yunpu Ma , Volker Tresp

Knowledge Graph-based Question Answering (KGQA) plays a pivotal role in complex reasoning tasks but remains constrained by two persistent challenges: the structural heterogeneity of Knowledge Graphs(KGs) often leads to semantic mismatch…

Computation and Language · Computer Science 2026-05-19 Peng Yu , En Xu , Bin Chen , Haibiao Chen , Yinfei Xu

Knowledge Graphs (KGs) have long served as a fundamental infrastructure for structured knowledge representation and reasoning. With the advent of Large Language Models (LLMs), the construction of KGs has entered a new paradigm-shifting from…

Artificial Intelligence · Computer Science 2025-10-24 Haonan Bian

Despite recent success in natural language processing (NLP), fact verification still remains a difficult task. Due to misinformation spreading increasingly fast, attention has been directed towards automatically verifying the correctness of…

Computation and Language · Computer Science 2024-08-15 Tobias A. Opsahl