A SYSTEM OF LEARNING LINKS BETWEEN UTTERANCES WITH META-INFORMATION IN CHARACTER BASED MULTI-PARTY CONVERSATION BY DECISION TREE

Junpei Nakamura, Yasuhiro Tajima, Yoshiyuki Kotani

2007

Abstract

It is important to find out interactive links between pairs of utterances in multi-party conversation like an online chat. Though the usage of linguistic information is necessary to do this, we showed the better performance to this criterion by using physical meta-information that consists of the number of conversation members, the distance between utterances, and the frequency of individual utterance. The result of the examination of Decision Tree learning showed the accuracy is 84.1%, the precision is 87.1% and the recall is 66.9% for link between same speaker’s utterances, and the accuracy is 77.5%, the precision is 68.5% and the recall is 56.8% for link between others’ utterances. The result of the examination without meta-information showed the accuracy is 62.7%, the precision is 86.7%, the recall is 64.5% for same speaker’s utterances, and the accuracy is 77.9%, the precision is 73.8% and the recall is 49.9% for others’. These results showed we could find new links by using meta-information.

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Paper Citation


in Harvard Style

Nakamura J., Tajima Y. and Kotani Y. (2007). A SYSTEM OF LEARNING LINKS BETWEEN UTTERANCES WITH META-INFORMATION IN CHARACTER BASED MULTI-PARTY CONVERSATION BY DECISION TREE . In Proceedings of the Third International Conference on Web Information Systems and Technologies - Volume 2: WEBIST, ISBN 978-972-8865-78-8, pages 420-424. DOI: 10.5220/0001280304200424

in Bibtex Style

@conference{webist07,
author={Junpei Nakamura and Yasuhiro Tajima and Yoshiyuki Kotani},
title={A SYSTEM OF LEARNING LINKS BETWEEN UTTERANCES WITH META-INFORMATION IN CHARACTER BASED MULTI-PARTY CONVERSATION BY DECISION TREE},
booktitle={Proceedings of the Third International Conference on Web Information Systems and Technologies - Volume 2: WEBIST,},
year={2007},
pages={420-424},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001280304200424},
isbn={978-972-8865-78-8},
}


in EndNote Style

TY - CONF
JO - Proceedings of the Third International Conference on Web Information Systems and Technologies - Volume 2: WEBIST,
TI - A SYSTEM OF LEARNING LINKS BETWEEN UTTERANCES WITH META-INFORMATION IN CHARACTER BASED MULTI-PARTY CONVERSATION BY DECISION TREE
SN - 978-972-8865-78-8
AU - Nakamura J.
AU - Tajima Y.
AU - Kotani Y.
PY - 2007
SP - 420
EP - 424
DO - 10.5220/0001280304200424