Search Results for author: Motoki Sato

Found 7 papers, 4 papers with code

Effective Adversarial Regularization for Neural Machine Translation

1 code implementation ACL 2019 Motoki Sato, Jun Suzuki, Shun Kiyono

A regularization technique based on adversarial perturbation, which was initially developed in the field of image processing, has been successfully applied to text classification tasks and has yielded attractive improvements.

Machine Translation NMT +3

Addressee and Response Selection for Multilingual Conversation

1 code implementation COLING 2018 Motoki Sato, Hiroki Ouch, Yuta Tsuboi

In this task, a conversational system predicts an appropriate addressee and response for an input message in multiple languages.

Transfer Learning

Interpretable Adversarial Perturbation in Input Embedding Space for Text

2 code implementations8 May 2018 Motoki Sato, Jun Suzuki, Hiroyuki Shindo, Yuji Matsumoto

This paper restores interpretability to such methods by restricting the directions of perturbations toward the existing words in the input embedding space.

Sentence

Segment-Level Neural Conditional Random Fields for Named Entity Recognition

no code implementations IJCNLP 2017 Motoki Sato, Hiroyuki Shindo, Ikuya Yamada, Yuji Matsumoto

We present Segment-level Neural CRF, which combines neural networks with a linear chain CRF for segment-level sequence modeling tasks such as named entity recognition (NER) and syntactic chunking.

Chunking Morphological Tagging +3

Adversarial Training for Cross-Domain Universal Dependency Parsing

no code implementations CONLL 2017 Motoki Sato, Hitoshi Manabe, Hiroshi Noji, Yuji Matsumoto

We describe our submission to the CoNLL 2017 shared task, which exploits the shared common knowledge of a language across different domains via a domain adaptation technique.

Dependency Parsing Domain Adaptation

Distributed Document and Phrase Co-embeddings for Descriptive Clustering

no code implementations EACL 2017 Motoki Sato, Austin J. Brockmeier, Georgios Kontonatsios, Tingting Mu, John Y. Goulermas, Jun{'}ichi Tsujii, Sophia Ananiadou

Descriptive document clustering aims to automatically discover groups of semantically related documents and to assign a meaningful label to characterise the content of each cluster.

Clustering Descriptive +2

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