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Knowledge graph (KG) embedding encodes the entities and relations from a KG into low-dimensional vector spaces to support various applications such as KG completion, question answering, and recommender systems. In real world, knowledge…

Databases · Computer Science 2022-06-02 Tianxing Wu , Arijit Khan , Melvin Yong , Guilin Qi , Meng Wang

Building a deep learning model for a Question-Answering (QA) task requires a lot of human effort, it may need several months to carefully tune various model architectures and find a best one. It's even harder to find different excellent…

Computation and Language · Computer Science 2022-01-27 Sinan Tan , Hui Xue , Qiyu Ren , Huaping Liu , Jing Bai

Knowledge graph question answering (KGQA) facilitates information access by leveraging structured data without requiring formal query language expertise from the user. Instead, users can express their information needs by simply asking…

Information Retrieval · Computer Science 2022-05-26 Trond Linjordet , Krisztian Balog

In this paper, we introduce EconLogicQA, a rigorous benchmark designed to assess the sequential reasoning capabilities of large language models (LLMs) within the intricate realms of economics, business, and supply chain management.…

Computation and Language · Computer Science 2024-09-24 Yinzhu Quan , Zefang Liu

We introduce KG-MuLQA (Knowledge-Graph-based Multi-Level Question-Answer Extraction): a framework that (1) extracts QA pairs at multiple complexity levels (2) along three key dimensions -- multi-hop retrieval, set operations, and answer…

The rapid evolution of large language models (LLMs) has transformed conversational agents, enabling complex human-machine interactions. However, evaluation frameworks often focus on single tasks, failing to capture the dynamic nature of…

Computation and Language · Computer Science 2025-02-10 Pietro Alessandro Aluffi , Patrick Zietkiewicz , Marya Bazzi , Matt Arderne , Vladimirs Murevics

Question Generation (QG), as a challenging Natural Language Processing task, aims at generating questions based on given answers and context. Existing QG methods mainly focus on building or training models for specific QG datasets. These…

Computation and Language · Computer Science 2022-12-06 Wei Yuan , Hongzhi Yin , Tieke He , Tong Chen , Qiufeng Wang , Lizhen Cui

In the last years, there have been significant developments in the area of Question Answering over Knowledge Graphs (KGQA). Despite all the notable advancements, current KGQA datasets only provide the answers as the direct output result of…

Computation and Language · Computer Science 2021-05-25 Debanjali Biswas , Mohnish Dubey , Md Rashad Al Hasan Rony , Jens Lehmann

In this paper, we aim to improve the reasoning ability of large language models (LLMs) over knowledge graphs (KGs) to answer complex questions. Inspired by existing methods that design the interaction strategy between LLMs and KG, we…

Computation and Language · Computer Science 2024-02-20 Jinhao Jiang , Kun Zhou , Wayne Xin Zhao , Yang Song , Chen Zhu , Hengshu Zhu , Ji-Rong Wen

Answering complex questions over textual resources remains a challenge, particularly when dealing with nuanced relationships between multiple entities expressed within natural-language sentences. To this end, curated knowledge bases (KBs)…

Computation and Language · Computer Science 2023-09-08 Jingjing Xu , Maria Biryukov , Martin Theobald , Vinu Ellampallil Venugopal

The exponential growth of AI in science necessitates efficient and scalable solutions for retrieving and preserving research information. Here, we present a tool for the development of a customized question-answer (QA) dataset, called…

Information Retrieval · Computer Science 2025-02-25 Qiming Liu , Zhongzheng Niu , Siting Liu , Mao Tian

Knowledge graph question answering (KGQA) presents significant challenges due to the structural and semantic variations across input graphs. Existing works rely on Large Language Model (LLM) agents for graph traversal and retrieval; an…

Computation and Language · Computer Science 2025-07-08 Costas Mavromatis , Soji Adeshina , Vassilis N. Ioannidis , Zhen Han , Qi Zhu , Ian Robinson , Bryan Thompson , Huzefa Rangwala , George Karypis

Most existing approaches for Knowledge Base Question Answering (KBQA) focus on a specific underlying knowledge base either because of inherent assumptions in the approach, or because evaluating it on a different knowledge base requires…

The evaluation of large language models (LLMs) has traditionally relied on static benchmarks, a paradigm that poses two major limitations: (1) predefined test sets lack adaptability to diverse application domains, and (2) standardized…

Computation and Language · Computer Science 2025-05-29 Qingchen Yu , Zifan Zheng , Ding Chen , Simin Niu , Bo Tang , Feiyu Xiong , Zhiyu Li

Data-driven, knowledge-grounded neural conversation models are capable of generating more informative responses. However, these models have not yet demonstrated that they can zero-shot adapt to updated, unseen knowledge graphs. This paper…

Computation and Language · Computer Science 2019-10-03 Yi-Lin Tuan , Yun-Nung Chen , Hung-yi Lee

Question answering (QA) models have shown rapid progress enabled by the availability of large, high-quality benchmark datasets. Such annotated datasets are difficult and costly to collect, and rarely exist in languages other than English,…

Computation and Language · Computer Science 2020-05-05 Patrick Lewis , Barlas Oğuz , Ruty Rinott , Sebastian Riedel , Holger Schwenk

Complex Query Answering (CQA) is a crucial reasoning task over Knowledge Graphs (KGs), which aims to answer first-order logical queries from incomplete KGs. While existing neural-symbolic methods achieve strong performance, they face…

Artificial Intelligence · Computer Science 2026-05-26 Weizhi Fei , Zihao Wang , hang Yin , Shukai Zhao , Wei Zhang , Yangqiu Song

Agentic knowledge graph question answering (KGQA) requires an agent to iteratively interact with knowledge graphs (KGs), posing challenges in both training data scarcity and reasoning generalization. Specifically, existing approaches often…

Computation and Language · Computer Science 2026-04-07 Shuwen Xu , Yao Xu , Jiaxiang Liu , Chenhao Yuan , Wenshuo Peng , Jun Zhao , Kang Liu

Existing Scholarly Question Answering (QA) methods typically target homogeneous data sources, relying solely on either text or Knowledge Graphs (KGs). However, scholarly information often spans heterogeneous sources, necessitating the…

Computation and Language · Computer Science 2024-12-06 Tilahun Abedissa Taffa , Debayan Banerjee , Yaregal Assabie , Ricardo Usbeck

Question answering (QA) models for reading comprehension have achieved human-level accuracy on in-distribution test sets. However, they have been demonstrated to lack robustness to challenge sets, whose distribution is different from that…

Computation and Language · Computer Science 2021-06-07 Kazutoshi Shinoda , Saku Sugawara , Akiko Aizawa