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Volume 28 Number 2 (Journal of NLP)

ISSN 1340-7619
Journal of Natural Language Processing Volume 28 Number 2

Table of Contents

Preface

[title in Japanese] [in Japanese] 318

General Paper


Effectiveness of Syntactic Dependency Information for Higher-Order Syntactic Attention Network Hidetaka Kamigaito, Katsuhiko Hayashi, Tsutomu Hirao, Masaaki Nagata, Manabu Okumura 321
The Effectiveness of Data Augmentation by Removing Unimportant sentence Tomohito Ouchi, Masayoshi Tabuse 350
Japanese–English Conversation Parallel Corpus for Promoting Context-aware Machine Translation Research Matīss Rikters, Ryokan Ri, Tong Li, Toshiaki Nakazawa 380
Optimization of Reference-less Evaluation Metric of Grammatical Error Correction for Manual Evaluations Ryoma Yoshimura, Masahiro Kaneko, Tomoyuki Kajiwara, Mamoru Komachi 404
Generation of Diverse Corrected Sentences Considering the Degree of Correction Kengo Hotate, Masahiro Kaneko, Satoru Katsumata, Mamoru Komachi 428
Phenomenon-wise Evaluation Dataset Towards Analyzing Robustness of Machine Translation Models Ryo Fujii, Masato Mita, Kaori Abe, Kazuaki Hanawa, Makoto Morishita, Jun Suzuki, Kentaro Inui 450
Optimizing Word Segmentation for Downstream Tasks by Weighting Text Vector Tatsuya Hiraoka, Sho Takase, Kei Uchiumi, Atsushi Keyaki, Naoaki Okazaki 479
Monolingual Phrase Alignment Based on Word Embedding Masato Yoshinaka, Tomoyuki Kajiwara, Yuki Arase 508
Identifying Implicit Quotes for Unsupervised Extractive Summarization for Conversational Texts Ryuji Kano, Tomoki Taniguchi, Tomoko Ohkuma 532
Supervised Visual Attention for Multimodal Neural Machine Translation Tetsuro Nishihara, Akihiro Tamura, Takashi Ninomiya, Yutaro Omote, Hideki Nakayama 554
Efficient Estimation of Influence of a Training Instance Sosuke Kobayashi, Sho Yokoi, Jun Suzuki, Kentaro Inui 573
Question Generation in Dialogue Systems based on Embedding Representation of Knowledge and Topics: Towards Food Preference Interview Systems Jie Zeng, Yukiko Nakano 598
Bilingual Subword Segmentation for Neural Machine Translation Hiroyuki Deguchi, Masao Utiyama, Akihiro Tamura, Takashi Ninomiya, Eiichiro Sumita 632
Heterogeneous Graph Based Extractive Summarization Considering Discourse and Coreference Relations Yin Jou Huang, Sadao Kurohashi 651

Society Column

Introducing “An Empirical Study of Span Representations in Argumentation Structure Parsing” Tatsuki Kuribayashi 677
Syntax-based Transformer for Neural Machine Translation Chunpeng Ma 682
Character-to-Word Attention for Word Segmentation: Research Process Shohei Higashiyama 688
Encoder-Decoder Attention ≠ Word Alignment: Axiomatic Method of Learning Word Alignments for Neural Machine Translation Chunpeng Ma 694
How LSTM Encodes Syntax: Exploring Context Vectors and Semi-Quantization on Natural Text Chihiro Shibata 700
BERT-based Cohesion Analysis of Japanese Texts Nobuhiro Ueda 705
Commentary on “Learning with Contrastive Examples for Data-to-Text Generation” Yui Uehara, Tatsuya Ishigaki 710
Neural Automated Essay Scoring Incorporating Handcrafted Features Masaki Uto 716
An Empirical Study of Contextual Data Augmentation for Japanese Zero Anaphora Resolution Ryuto Konno 721
Combining Event Semantics and Degree semantics for Natural Language Inference Izumi Haruta 726
Effective Use of Target-side Context for Neural Machine Translation Hideya Mino 731

Editorial Note

Yo Ehara and Yoshimasa Tsuruoka 736

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