no code implementations • dialdoc (ACL) 2022 • Yuya Nakano, Seiya Kawano, Koichiro Yoshino, Katsuhito Sudoh, Satoshi Nakamura
Ambiguous questions are generated by eliminating a part of a sentence considering the sentence structure.
no code implementations • IWSLT 2017 • Mauro Cettolo, Marcello Federico, Luisa Bentivogli, Jan Niehues, Sebastian Stüker, Katsuhito Sudoh, Koichiro Yoshino, Christian Federmann
The IWSLT 2017 evaluation campaign has organised three tasks.
no code implementations • 15 Feb 2023 • Seyed Mahed Mousavi, Shohei Tanaka, Gabriel Roccabruna, Koichiro Yoshino, Satoshi Nakamura, Giuseppe Riccardi
We publish the annotated dataset, annotation materials, and machine learning baseline models for the task of new event extraction for narrative understanding.
1 code implementation • SIGDIAL (ACL) 2021 • Shohei Tanaka, Koichiro Yoshino, Katsuhito Sudoh, Satoshi Nakamura
In order to train the classification model on such training data, we applied the positive/unlabeled (PU) learning method, which assumes that only a part of the data is labeled with positive examples.
no code implementations • COLING 2020 • Koichiro Yoshino, Kana Ikeuchi, Katsuhito Sudoh, Satoshi Nakamura
Spoken language understanding (SLU), which converts user requests in natural language to machine-interpretable expressions, is becoming an essential task.
2 code implementations • ACL 2020 • Yoichi Ishibashi, Katsuhito Sudoh, Koichiro Yoshino, Satoshi Nakamura
For transferring king into queen in this analogy-based manner, we subtract a difference vector man - woman based on the knowledge that king is male.
no code implementations • LREC 2020 • Sara Asai, Koichiro Yoshino, Seitaro Shinagawa, Sakriani Sakti, Satoshi Nakamura
Expressing emotion is known as an efficient way to persuade one{'}s dialogue partner to accept one{'}s claim or proposal.
no code implementations • 23 Mar 2020 • Koichiro Yoshino, Kohei Wakimoto, Yuta Nishimura, Satoshi Nakamura
Two reasons make it challenging to apply existing sequence-to-sequence models to this mapping: 1) it is hard to prepare a large-scale dataset for any kind of robots and their environment, and 2) there is a gap between the number of samples obtained from robot action observations and generated word sequences of captions.
no code implementations • WS 2019 • Seiya Kawano, Koichiro Yoshino, Satoshi Nakamura
We introduce an adversarial learning framework for the task of generating conditional responses with a new objective to a discriminator, which explicitly distinguishes sentences by using labels.
2 code implementations • WS 2019 • Shohei Tanaka, Koichiro Yoshino, Katsuhito Sudoh, Satoshi Nakamura
We propose a novel method for selecting coherent and diverse responses for a given dialogue context.
2 code implementations • 28 May 2019 • Andrei C. Coman, Koichiro Yoshino, Yukitoshi Murase, Satoshi Nakamura, Giuseppe Riccardi
To identify the point of maximal understanding in an ongoing utterance, we a) implement an incremental Dialog State Tracker which is updated on a token basis (iDST) b) re-label the Dialog State Tracking Challenge 2 (DSTC2) dataset and c) adapt it to the incremental turn-taking experimental scenario.
no code implementations • 11 Jan 2019 • Koichiro Yoshino, Chiori Hori, Julien Perez, Luis Fernando D'Haro, Lazaros Polymenakos, Chulaka Gunasekara, Walter S. Lasecki, Jonathan K. Kummerfeld, Michel Galley, Chris Brockett, Jianfeng Gao, Bill Dolan, Xiang Gao, Huda Alamari, Tim K. Marks, Devi Parikh, Dhruv Batra
This paper introduces the Seventh Dialog System Technology Challenges (DSTC), which use shared datasets to explore the problem of building dialog systems.
no code implementations • 26 Nov 2018 • Hisao Katsumi, Takuya Hiraoka, Koichiro Yoshino, Kazeto Yamamoto, Shota Motoura, Kunihiko Sadamasa, Satoshi Nakamura
It is required that these systems have sufficient supporting information to argue their claims rationally; however, the systems often do not have enough of such information in realistic situations.
1 code implementation • 20 Nov 2018 • Ryo Nakamura, Katsuhito Sudoh, Koichiro Yoshino, Satoshi Nakamura
Although generation-based dialogue systems have been widely researched, the response generations by most existing systems have very low diversities.
no code implementations • WS 2018 • Nurul Lubis, Sakriani Sakti, Koichiro Yoshino, Satoshi Nakamura
Positive emotion elicitation seeks to improve user{'}s emotional state through dialogue system interaction, where a chat-based scenario is layered with an implicit goal to address user{'}s emotional needs.
no code implementations • 23 Feb 2018 • Seitaro Shinagawa, Koichiro Yoshino, Sakriani Sakti, Yu Suzuki, Satoshi Nakamura
We propose an interactive image-manipulation system with natural language instruction, which can generate a target image from a source image and an instruction that describes the difference between the source and the target image.
no code implementations • IJCNLP 2017 • Louisa Pragst, Koichiro Yoshino, Wolfgang Minker, Satoshi Nakamura, Stefan Ultes
Defining all possible system actions in a dialogue system by hand is a tedious work.
no code implementations • WS 2017 • Koichiro Yoshino, Yu Suzuki, Satoshi Nakamura
We demonstrate an information navigation system for sightseeing domains that has a dialogue interface for discovering user interests for tourist activities.
no code implementations • WS 2017 • Makoto Morishita, Yusuke Oda, Graham Neubig, Koichiro Yoshino, Katsuhito Sudoh, Satoshi Nakamura
Training of neural machine translation (NMT) models usually uses mini-batches for efficiency purposes.
no code implementations • 31 May 2017 • Koichiro Yoshino, Shinsuke Mori, Satoshi Nakamura
This paper investigates and analyzes the effect of dependency information on predicate-argument structure analysis (PASA) and zero anaphora resolution (ZAR) for Japanese, and shows that a straightforward approach of PASA and ZAR works effectively even if dependency information was not available.
no code implementations • ACL 2017 • Yusuke Oda, Philip Arthur, Graham Neubig, Koichiro Yoshino, Satoshi Nakamura
In this paper, we propose a new method for calculating the output layer in neural machine translation systems.
no code implementations • LREC 2016 • Koichiro Yoshino, Naoki Hirayama, Shinsuke Mori, Fumihiko Takahashi, Katsutoshi Itoyama, Hiroshi G. Okuno
Binary file summaries/549. html matches
no code implementations • LREC 2016 • Nurul Lubis, R Gomez, y, Sakriani Sakti, Keisuke Nakamura, Koichiro Yoshino, Satoshi Nakamura, Kazuhiro Nakadai
Emotional aspects play a vital role in making human communication a rich and dynamic experience.