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We present a framework for question answering that can efficiently scale to longer documents while maintaining or even improving performance of state-of-the-art models. While most successful approaches for reading comprehension rely on…

Computation and Language · Computer Science 2017-02-09 Eunsol Choi , Daniel Hewlett , Alexandre Lacoste , Illia Polosukhin , Jakob Uszkoreit , Jonathan Berant

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

In this paper, we investigate the use of discourse-aware rewards with reinforcement learning to guide a model to generate long, coherent text. In particular, we propose to learn neural rewards to model cross-sentence ordering as a means to…

Computation and Language · Computer Science 2018-05-11 Antoine Bosselut , Asli Celikyilmaz , Xiaodong He , Jianfeng Gao , Po-Sen Huang , Yejin Choi

Multi-hop question answering requires models to gather information from different parts of a text to answer a question. Most current approaches learn to address this task in an end-to-end way with neural networks, without maintaining an…

Computation and Language · Computer Science 2021-06-08 Jifan Chen , Shih-ting Lin , Greg Durrett

We propose a recurrent neural model that generates natural-language questions from documents, conditioned on answers. We show how to train the model using a combination of supervised and reinforcement learning. After teacher forcing for…

Computation and Language · Computer Science 2017-05-16 Xingdi Yuan , Tong Wang , Caglar Gulcehre , Alessandro Sordoni , Philip Bachman , Sandeep Subramanian , Saizheng Zhang , Adam Trischler

Existing approaches for open-domain question answering (QA) are typically designed for questions that require either single-hop or multi-hop reasoning, which make strong assumptions of the complexity of questions to be answered. Also,…

Computation and Language · Computer Science 2021-05-25 Ping Nie , Yuyu Zhang , Arun Ramamurthy , Le Song

We propose a method to teach an automated agent to learn how to search for multi-hop paths of relations between entities in an open domain. The method learns a policy for directing existing information retrieval and machine reading…

Computation and Language · Computer Science 2022-05-31 Enrique Noriega-Atala , Mihai Surdeanu , Clayton T. Morrison

We propose a framework for answering open domain multi-hop questions in which partial information is read and used to generate followup questions, to finally be answered by a pretrained single-hop answer extractor. This framework makes each…

Computation and Language · Computer Science 2020-02-28 Christopher Malon , Bing Bai

In table-text open-domain question answering, a retriever system retrieves relevant evidence from tables and text to answer questions. Previous studies in table-text open-domain question answering have two common challenges: firstly, their…

Computation and Language · Computer Science 2024-03-27 Deokhyung Kang , Baikjin Jung , Yunsu Kim , Gary Geunbae Lee

Conversational question answering (ConvQA) over law knowledge bases (KBs) involves answering multi-turn natural language questions about law and hope to find answers in the law knowledge base. Despite many methods have been proposed.…

Artificial Intelligence · Computer Science 2024-01-17 Mi Wu

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

This paper is concerned with the task of multi-hop open-domain Question Answering (QA). This task is particularly challenging since it requires the simultaneous performance of textual reasoning and efficient searching. We present a method…

Computation and Language · Computer Science 2019-06-18 Yair Feldman , Ran El-Yaniv

In this paper, we present Hierarchical Graph Network (HGN) for multi-hop question answering. To aggregate clues from scattered texts across multiple paragraphs, a hierarchical graph is created by constructing nodes on different levels of…

Computation and Language · Computer Science 2020-10-07 Yuwei Fang , Siqi Sun , Zhe Gan , Rohit Pillai , Shuohang Wang , Jingjing Liu

Text-based adventure games provide a platform on which to explore reinforcement learning in the context of a combinatorial action space, such as natural language. We present a deep reinforcement learning architecture that represents the…

Computation and Language · Computer Science 2019-03-26 Prithviraj Ammanabrolu , Mark O. Riedl

Question answering is one of the most important and difficult applications at the border of information retrieval and natural language processing, especially when we talk about complex science questions which require some form of inference…

Computation and Language · Computer Science 2019-05-08 George-Sebastian Pirtoaca , Traian Rebedea , Stefan Ruseti

To solve a text-based game, an agent needs to formulate valid text commands for a given context and find the ones that lead to success. Recent attempts at solving text-based games with deep reinforcement learning have focused on the latter,…

Machine Learning · Computer Science 2018-12-04 Ruo Yu Tao , Marc-Alexandre Côté , Xingdi Yuan , Layla El Asri

Advances in natural language processing tasks have gained momentum in recent years due to the increasingly popular neural network methods. In this paper, we explore deep learning techniques for answering multi-step reasoning questions that…

Computation and Language · Computer Science 2018-03-23 Till Haug , Octavian-Eugen Ganea , Paulina Grnarova

Answering complex questions involving multiple entities and relations is a challenging task. Logically, the answer to a complex question should be derived by decomposing the complex question into multiple simple sub-questions and then…

Computation and Language · Computer Science 2019-11-13 Yunan Zhang , Xiang Cheng , Yufeng Zhang , Zihan Wang , Zhengqi Fang , Xiaoyan Wang , Zhenya Huang , Chengxiang Zhai

In open-domain question answering, a model receives a text question as input and searches for the correct answer using a large evidence corpus. The retrieval step is especially difficult as typical evidence corpora have \textit{millions} of…

Computation and Language · Computer Science 2021-09-24 Christopher Sciavolino

Considering a collection of RDF triples, the RDF-to-text generation task aims to generate a text description. Most previous methods solve this task using a sequence-to-sequence model or using a graph-based model to encode RDF triples and to…

Computation and Language · Computer Science 2022-03-24 Hanning Gao , Lingfei Wu , Hongyun Zhang , Zhihua Wei , Po Hu , Fangli Xu , Bo Long