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A compelling approach to complex question answering is to convert the question to a sequence of actions, which can then be executed on the knowledge base to yield the answer, aka the programmer-interpreter approach. Use similar training…

Artificial Intelligence · Computer Science 2020-11-02 Yuncheng Hua , Yuan-Fang Li , Gholamreza Haffari , Guilin Qi , Wei Wu

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

Closed-book question answering (QA) requires a model to directly answer an open-domain question without access to any external knowledge. Prior work on closed-book QA either directly finetunes or prompts a pretrained language model (LM) to…

Computation and Language · Computer Science 2023-04-28 Dan Su , Mostofa Patwary , Shrimai Prabhumoye , Peng Xu , Ryan Prenger , Mohammad Shoeybi , Pascale Fung , Anima Anandkumar , Bryan Catanzaro

Language Models such as BERT have grown in popularity due to their ability to be pre-trained and perform robustly on a wide range of Natural Language Processing tasks. Often seen as an evolution over traditional word embedding techniques,…

Computation and Language · Computer Science 2022-06-30 Nimesh Bhana , Terence L. van Zyl

Language models are known to encode a great amount of factual knowledge through pretraining. However, such knowledge might be insufficient to cater to user requests, requiring the model to integrate external knowledge sources and adhere to…

Computation and Language · Computer Science 2024-07-19 Sizhe Zhou , Sha Li , Yu Meng , Yizhu Jiao , Heng Ji , Jiawei Han

Algorithms of question answering in a computer system oriented on input and logical processing of text information are presented. A knowledge domain under consideration is social behavior of a person. A database of the system includes an…

Computation and Language · Computer Science 2011-11-21 Yuriy Ostapov

Knowledge enhanced pre-trained language models (K-PLMs) are shown to be effective for many public tasks in the literature but few of them have been successfully applied in practice. To address this problem, we propose K-AID, a systematic…

Artificial Intelligence · Computer Science 2021-09-23 Fu Sun , Feng-Lin Li , Ruize Wang , Qianglong Chen , Xingyi Cheng , Ji Zhang

Knowledge retrieval is one of the major challenges in building a knowledge-grounded dialogue system. A common method is to use a neural retriever with a distributed approximate nearest-neighbor database to quickly find the relevant…

Information Retrieval · Computer Science 2024-05-09 Nhat Tran , Diane Litman

Knowledge Base Question Answering (KBQA) aims to answer natural language questions based on facts in knowledge bases. A typical approach to KBQA is semantic parsing, which translates a question into an executable logical form in a formal…

Computation and Language · Computer Science 2024-06-17 Jinxin Liu , Shulin Cao , Jiaxin Shi , Tingjian Zhang , Lunyiu Nie , Linmei Hu , Lei Hou , Juanzi Li

Knowledge Bases (KBs) play a key role in various applications. As two representative KB-related tasks, knowledge base completion (KBC) and knowledge base question answering (KBQA) are closely related and inherently complementary with each…

Artificial Intelligence · Computer Science 2026-04-08 Yinan Liu , Dongying Lin , Sigang Luo , Xiaochun Yang , Bin Wang

In the context of knowledge-driven seq-to-seq generation tasks, such as document-based question answering and document summarization systems, two fundamental knowledge sources play crucial roles: the inherent knowledge embedded within model…

Computation and Language · Computer Science 2025-01-16 Han Cao , Zhaoyang Zhang , Xiangtian Li , Chufan Wu , Hansong Zhang , Wenqing Zhang

Knowledge base question answering (KBQA) has attracted a lot of interest in recent years, especially for complex questions which require multiple facts to answer. Question decomposition is a promising way to answer complex questions.…

Computation and Language · Computer Science 2023-06-14 Xiang Huang , Sitao Cheng , Yiheng Shu , Yuheng Bao , Yuzhong Qu

Space agencies execute complex satellite operations that need to be supported by the technical knowledge contained in their extensive information systems. Knowledge bases (KB) are an effective way of storing and accessing such information…

Artificial Intelligence · Computer Science 2023-06-01 Paul Darm , Antonio Valerio Miceli-Barone , Shay B. Cohen , Annalisa Riccardi

Knowledge-based visual question answering (KB-VQA) is a challenging task, which requires the model to leverage external knowledge for comprehending and answering questions grounded in visual content. Recent studies retrieve the knowledge…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Dongze Hao , Jian Jia , Longteng Guo , Qunbo Wang , Te Yang , Yan Li , Yanhua Cheng , Bo Wang , Quan Chen , Han Li , Jing Liu

This work aims to address the problem of image-based question-answering (QA) with new models and datasets. In our work, we propose to use neural networks and visual semantic embeddings, without intermediate stages such as object detection…

Machine Learning · Computer Science 2015-12-01 Mengye Ren , Ryan Kiros , Richard Zemel

Knowledge bases provide applications with the benefit of easily accessible, systematic relational knowledge but often suffer in practice from their incompleteness and lack of knowledge of new entities and relations. Much work has focused on…

Computation and Language · Computer Science 2013-03-19 Danqi Chen , Richard Socher , Christopher D. Manning , Andrew Y. Ng

Word embeddings are widely used in Natural Language Processing, mainly due to their success in capturing semantic information from massive corpora. However, their creation process does not allow the different meanings of a word to be…

Computation and Language · Computer Science 2017-06-22 Massimiliano Mancini , Jose Camacho-Collados , Ignacio Iacobacci , Roberto Navigli

This study explores the realm of knowledge base question answering (KBQA). KBQA is considered a challenging task, particularly in parsing intricate questions into executable logical forms. Traditional semantic parsing (SP)-based methods…

Computation and Language · Computer Science 2025-03-13 Guanming Xiong , Junwei Bao , Wen Zhao

The goal of Question Answering over Knowledge Graphs (KGQA) is to find answers for natural language questions over a knowledge graph. Recent KGQA approaches adopt a neural machine translation (NMT) approach, where the natural language…

Artificial Intelligence · Computer Science 2021-07-08 Daniel Diomedi , Aidan Hogan

Recent work has investigated the interesting question using pre-trained language models (PLMs) as knowledge bases for answering open questions. However, existing work is limited in using small benchmarks with high test-train overlaps. We…

Computation and Language · Computer Science 2021-06-04 Cunxiang Wang , Pai Liu , Yue Zhang