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Question answering over knowledge bases (KBQA) has become a popular approach to help users extract information from knowledge bases. Although several systems exist, choosing one suitable for a particular application scenario is difficult.…

Computation and Language · Computer Science 2022-11-16 Khiem Vinh Tran , Hao Phu Phan , Khang Nguyen Duc Quach , Ngan Luu-Thuy Nguyen , Jun Jo , Thanh Tam Nguyen

End-to-end training has been a popular approach for knowledge base question answering (KBQA). However, real world applications often contain answers of varied quality for users' questions. It is not appropriate to treat all available…

Computation and Language · Computer Science 2019-03-08 Mengxi Wei , Yifan He , Qiong Zhang , Luo Si

A multi-hop question answering (QA) dataset aims to test reasoning and inference skills by requiring a model to read multiple paragraphs to answer a given question. However, current datasets do not provide a complete explanation for the…

Computation and Language · Computer Science 2020-11-13 Xanh Ho , Anh-Khoa Duong Nguyen , Saku Sugawara , Akiko Aizawa

Knowledge graph (KG) is known to be helpful for the task of question answering (QA), since it provides well-structured relational information between entities, and allows one to further infer indirect facts. However, it is challenging to…

Machine Learning · Computer Science 2017-11-29 Yuyu Zhang , Hanjun Dai , Zornitsa Kozareva , Alexander J. Smola , Le Song

Question answering over knowledge bases (KBQA) aims to answer factoid questions with a given knowledge base (KB). Due to the large scale of KB, annotated data is impossible to cover all fact schemas in KB, which poses a challenge to the…

Computation and Language · Computer Science 2023-05-24 Chuanyuan Tan , Yuehe Chen , Wenbiao Shao , Wenliang Chen

In the past years, Knowledge-Based Question Answering (KBQA), which aims to answer natural language questions using facts in a knowledge base, has been well developed. Existing approaches often assume a static knowledge base. However, the…

Computation and Language · Computer Science 2021-01-19 Yongqi Li , Wenjie Li , Liqiang Nie

The multi-relational Knowledge Base Question Answering (KBQA) system performs multi-hop reasoning over the knowledge graph (KG) to achieve the answer. Recent approaches attempt to introduce the knowledge graph embedding (KGE) technique to…

Computation and Language · Computer Science 2021-11-01 Guanglin Niu , Yang Li , Chengguang Tang , Zhongkai Hu , Shibin Yang , Peng Li , Chengyu Wang , Hao Wang , Jian Sun

Multi-hop Question Answering (QA) requires the machine to answer complex questions by finding scattering clues and reasoning from multiple documents. Graph Network (GN) and Question Decomposition (QD) are two common approaches at present.…

Computation and Language · Computer Science 2022-03-18 Jiawei Li , Mucheng Ren , Yang Gao , Yizhe Yang

General Question Answering (QA) systems over texts require the multi-hop reasoning capability, i.e. the ability to reason with information collected from multiple passages to derive the answer. In this paper we conduct a systematic analysis…

Computation and Language · Computer Science 2019-11-01 Haoyu Wang , Mo Yu , Xiaoxiao Guo , Rajarshi Das , Wenhan Xiong , Tian Gao

Knowledge Base Question Answering (KBQA) tasks that in-volve complex reasoning are emerging as an important re-search direction. However, most KBQA systems struggle withgeneralizability, particularly on two dimensions: (a) acrossmultiple…

Multi-hop question answering (MQA) under knowledge editing (KE) has garnered significant attention in the era of large language models. However, existing models for MQA under KE exhibit poor performance when dealing with questions…

Computation and Language · Computer Science 2024-04-02 Keyuan Cheng , Gang Lin , Haoyang Fei , Yuxuan zhai , Lu Yu , Muhammad Asif Ali , Lijie Hu , Di Wang

Relation detection is a core component for many NLP applications including Knowledge Base Question Answering (KBQA). In this paper, we propose a hierarchical recurrent neural network enhanced by residual learning that detects KB relations…

Computation and Language · Computer Science 2017-05-30 Mo Yu , Wenpeng Yin , Kazi Saidul Hasan , Cicero dos Santos , Bing Xiang , Bowen Zhou

Scaling Visual Question Answering (VQA) to the open-domain and multi-hop nature of web searches, requires fundamental advances in visual representation learning, knowledge aggregation, and language generation. In this work, we introduce…

Computation and Language · Computer Science 2022-03-29 Yingshan Chang , Mridu Narang , Hisami Suzuki , Guihong Cao , Jianfeng Gao , Yonatan Bisk

This work deals with the challenge of learning and reasoning over multi-modal multi-hop question answering (QA). We propose a graph reasoning network based on the semantic structure of the sentences to learn multi-source reasoning paths and…

Computation and Language · Computer Science 2025-01-09 Navya Yarrabelly , Saloni Mittal

Knowledge Base Question Answering (KBQA) aims to answer natural language questions over large-scale knowledge bases (KBs), which can be summarized into two crucial steps: knowledge retrieval and semantic parsing. However, three core…

Computation and Language · Computer Science 2024-10-31 Haoran Luo , Haihong E , Zichen Tang , Shiyao Peng , Yikai Guo , Wentai Zhang , Chenghao Ma , Guanting Dong , Meina Song , Wei Lin , Yifan Zhu , Luu Anh Tuan

In Textual question answering (TQA) systems, complex questions often require retrieving multiple textual fact chains with multiple reasoning steps. While existing benchmarks are limited to single-chain or single-hop retrieval scenarios. In…

Computation and Language · Computer Science 2023-05-24 Minjun Zhu , Yixuan Weng , Shizhu He , Kang Liu , Jun Zhao

Multi-hop question answering (QA) requires a model to retrieve and integrate information from different parts of a long text to answer a question. Humans answer this kind of complex questions via a divide-and-conquer approach. In this…

Computation and Language · Computer Science 2021-01-28 Yixuan Tang , Hwee Tou Ng , Anthony K. H. Tung

Question generation (QG) attempts to solve the inverse of question answering (QA) problem by generating a natural language question given a document and an answer. While sequence to sequence neural models surpass rule-based systems for QG,…

Computation and Language · Computer Science 2020-11-03 Deepak Gupta , Hardik Chauhan , Akella Ravi Tej , Asif Ekbal , Pushpak Bhattacharyya

Knowledge Base Question Answering (KBQA) challenges models to bridge the gap between natural language and strict knowledge graph schemas by generating executable logical forms. While Large Language Models (LLMs) have advanced this field,…

Computation and Language · Computer Science 2026-01-12 Xin Sun , Zhongqi Chen , Xing Zheng , Qiang Liu , Shu Wu , Bowen Song , Zilei Wang , Weiqiang Wang , Liang Wang

Self-evolving search agents reduce reliance on human-written training questions by generating and solving their own search tasks. We build on Search Self-Play (SSP), a representative Proposer and Solver framework in which questions are…

Artificial Intelligence · Computer Science 2026-05-08 Huyu Wu , Jun Liu , Xiaochi Wei , Yan Gao , Yi Wu , Yao Hu