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Related papers: EWEK-QA: Enhanced Web and Efficient Knowledge Grap…

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Knowledge Graph Question Answering (KGQA) aims to improve factual accuracy by leveraging structured knowledge. However, real-world Knowledge Graphs (KGs) are often incomplete, leading to the problem of Incomplete KGQA (IKGQA). A common…

Artificial Intelligence · Computer Science 2025-12-08 Jilong Liu , Pengyang Shao , Wei Qin , Fei Liu , Yonghui Yang , Richang Hong

Retrieval-augmented generation (RAG) systems address complex user requests by decomposing them into subqueries, retrieving potentially relevant documents for each, and then aggregating them to generate an answer. Efficiently selecting…

Artificial Intelligence · Computer Science 2025-10-22 Roxana Petcu , Kenton Murray , Daniel Khashabi , Evangelos Kanoulas , Maarten de Rijke , Dawn Lawrie , Kevin Duh

Knowledge Graphs (KGs) are foundational to applications such as search, question answering, and recommendation. Conventional knowledge graph construction methods are predominantly static, rely ing on a single-step construction from a fixed…

Artificial Intelligence · Computer Science 2026-03-23 Weidong Bao , Yilin Wang , Ruyu Gao , Fangling Leng , Yubin Bao , Ge Yu

Question Generation (QG) is an essential component of the automatic intelligent tutoring systems, which aims to generate high-quality questions for facilitating the reading practice and assessments. However, existing QG technologies…

Computation and Language · Computer Science 2020-12-14 Xin Jia , Wenjie Zhou , Xu Sun , Yunfang Wu

Domain-specific quantitative reasoning remains a major challenge for large language models (LLMs), especially in fields requiring expert knowledge and complex question answering (QA). In this work, we propose Expert Question Decomposition…

Computation and Language · Computer Science 2025-10-03 Mengyu Wang , Sotirios Sabanis , Miguel de Carvalho , Shay B. Cohen , Tiejun Ma

Knowledge graphs (KGs) provide structured, verifiable grounding for large language models (LLMs), but current LLM-based systems commonly use KGs as auxiliary structures for text retrieval, leaving their intrinsic quality underexplored. In…

Computation and Language · Computer Science 2026-01-30 Alla Chepurova , Aydar Bulatov , Mikhail Burtsev , Yuri Kuratov

We introduce REALTIME QA, a dynamic question answering (QA) platform that announces questions and evaluates systems on a regular basis (weekly in this version). REALTIME QA inquires about the current world, and QA systems need to answer…

Computation and Language · Computer Science 2024-02-29 Jungo Kasai , Keisuke Sakaguchi , Yoichi Takahashi , Ronan Le Bras , Akari Asai , Xinyan Yu , Dragomir Radev , Noah A. Smith , Yejin Choi , Kentaro Inui

Fact-based Visual Question Answering (FVQA), a challenging variant of VQA, requires a QA-system to include facts from a diverse knowledge graph (KG) in its reasoning process to produce an answer. Large KGs, especially common-sense KGs, are…

Computation and Language · Computer Science 2021-06-22 Kiran Ramnath , Mark Hasegawa-Johnson

We introduce EXIT, an extractive context compression framework that enhances both the effectiveness and efficiency of retrieval-augmented generation (RAG) in question answering (QA). Current RAG systems often struggle when retrieval models…

Computation and Language · Computer Science 2025-05-30 Taeho Hwang , Sukmin Cho , Soyeong Jeong , Hoyun Song , SeungYoon Han , Jong C. Park

Constructing domain-specific knowledge graphs from unstructured text remains challenging due to heterogeneous entity mentions, long-tail relation distributions, and the absence of standardized schemas. We present LEC-KG, a bidirectional…

Computation and Language · Computer Science 2026-03-02 Yikai Zeng , Yingchao Piao , Changhua Pei , Jianhui Li

Recently, knowledge-enhanced methods leveraging auxiliary knowledge graphs have emerged in relation extraction, surpassing traditional text-based approaches. However, to our best knowledge, there is currently no public dataset available…

Machine Learning · Computer Science 2023-04-26 Yucong Lin , Hongming Xiao , Jiani Liu , Zichao Lin , Keming Lu , Feifei Wang , Wei Wei

Modern enterprises manage vast knowledge distributed across heterogeneous systems such as Jira, Git repositories, Confluence, and wikis. Conventional retrieval methods based on keyword search or static embeddings often fail to answer…

Artificial Intelligence · Computer Science 2025-10-14 Nilima Rao , Jagriti Srivastava , Pradeep Kumar Sharma , Hritvik Shrivastava

Knowledge Graph Question Answering (KGQA) systems rely on high-quality benchmarks to evaluate complex multi-hop reasoning. However, despite their widespread use, popular datasets such as WebQSP and CWQ suffer from critical quality issues,…

Computation and Language · Computer Science 2025-11-05 Liangliang Zhang , Zhuorui Jiang , Hongliang Chi , Haoyang Chen , Mohammed Elkoumy , Fali Wang , Qiong Wu , Zhengyi Zhou , Shirui Pan , Suhang Wang , Yao Ma

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

Machine Learning · Computer Science 2025-10-29 Ziyu Liu , Yijing Liu , Jianfei Yuan , Minzhi Yan , Le Yue , Honghui Xiong , Yi Yang

To alleviate the challenges of building Knowledge Graphs (KG) from scratch, a more general task is to enrich a KG using triples from an open corpus, where the obtained triples contain noisy entities and relations. It is challenging to…

Artificial Intelligence · Computer Science 2022-06-16 Yue Wang , Yao Wan , Lu Bai , Lixin Cui , Zhuo Xu , Ming Li , Philip S. Yu , Edwin R Hancock

Retrieval-Augmented Generation (RAG) systems enable large language models (LLMs) instant access to relevant information for the generative process, demonstrating their superior performance in addressing common LLM challenges such as…

Computation and Language · Computer Science 2025-10-17 Yilun Zheng , Dan Yang , Jie Li , Lin Shang , Lihui Chen , Jiahao Xu , Sitao Luan

Knowledge is captured in the form of entities and their relationships and stored in knowledge graphs. Knowledge graphs enhance the capabilities of applications in many different areas including Web search, recommendation, and natural…

Machine Learning · Computer Science 2021-03-31 Kalpa Gunaratna , Yu Wang , Hongxia Jin

As web agents (e.g., Deep Research) routinely consume massive volumes of web pages to gather and analyze information, LLM context management -- under large token budgets and low signal density -- emerges as a foundational, high-importance,…

Information Retrieval · Computer Science 2025-12-09 Yihan Chen , Benfeng Xu , Xiaorui Wang , Zhendong Mao

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

Arguments often do not make explicit how a conclusion follows from its premises. To compensate for this lack, we enrich arguments with structured background knowledge to support knowledge-intense argumentation tasks. We present a new…

Computation and Language · Computer Science 2023-05-16 Moritz Plenz , Juri Opitz , Philipp Heinisch , Philipp Cimiano , Anette Frank