Named Entity Recognition with Context-Aware Dictionary Knowledge
Named entity recognition (NER) is an important task in the natural language processing field. Existing NER methods heavily rely on labeled data for model training, and their performance on rare entities is usually unsatisfactory. Entity dictionaries can c
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Maosong Sun · Sujian Li · Yue Zhang · Yang Liu · Shizhu He · Gaoqi Rao (Eds.)
Chinese Computational Linguistics 19th China National Conference, CCL 2020 Hainan, China, October 30 – November 1, 2020 Proceedings
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Lecture Notes in Artificial Intelligence Subseries of Lecture Notes in Computer Science
Series Editors Randy Goebel University of Alberta, Edmonton, Canada Yuzuru Tanaka Hokkaido University, Sapporo, Japan Wolfgang Wahlster DFKI and Saarland University, Saarbrücken, Germany
Founding Editor Jörg Siekmann DFKI and Saarland University, Saarbrücken, Germany
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More information about this series at http://www.springer.com/series/1244
Maosong Sun Sujian Li Yue Zhang Yang Liu Shizhu He Gaoqi Rao (Eds.) •
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Chinese Computational Linguistics 19th China National Conference, CCL 2020 Hainan, China, October 30 – November 1, 2020 Proceedings
123
Editors Maosong Sun Tsinghua University Beijing, China
Sujian Li Peking University Beijing, China
Yue Zhang Westlake University Hangzhou, China
Yang Liu Tsinghua University Beijing, China
Shizhu He Chinese Academy of Sciences Beijing, China
Gaoqi Rao Beijing Language and Culture University Beijing, China
ISSN 0302-9743 ISSN 1611-3349 (electronic) Lecture Notes in Artificial Intelligence ISBN 978-3-030-63030-0 ISBN 978-3-030-63031-7 (eBook) https://doi.org/10.1007/978-3-030-63031-7 LNCS Sublibrary: SL7 – Artificial Intelligence © Springer Nature Switzerland AG 2020 This work is subject to copyright. All rights are reserved by the Publisher, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, expressed or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This Springer imprint is published by the registered company Springer Nature Switzerland AG The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland
Preface
Welcome to the proceedings of the 19th China National Conference on Computational Linguistics (CCL 2020). The conference and symposium were hosted online and co-organized by Hainan University, China. CCL is an
