Presentation 2010-01-22
Self-Supervised Mining Human Activity from the Web
THE Nguyen MINH, Takahiro KAWAMURA, Hiroyuki NAKAGAWA, Yasuyuki TAHARA, Akihiko OHSUGA,
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Abstract(in English) In our definition, human activity can be expressed by five basic attributes : actor, action, object, time and location. The goal of this paper is describe a novel method to automatically extract all of the basic attributes and the transition between activities derived from sentences in Japanese web pages. However, previous work had some limitations, such as high setup costs, inability to extract all attributes, limitation on the types of sentences that can be handled, and insufficient consideration interdependency among attributes. To resolve these problems, this paper proposes a novel approach that uses conditional random fields and self-supervised learning. This approach treats activity extraction as a sequence labeling problem, and has advantages such as domain-independence, scalability, and does not require any human input. Since it is unnecessary to fix the number of elements in a tuple, this approach can extract all of the basic attributes and the transition between activities by making only a simgle pass. In an experiment, this approach achieves high precision (activity : 88.9%, attributes : over 90%, transition : over 87%).
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Keyword(in English) Human Activity / Semantic Network / Web Mining / Self-Supervised Learning / Real-world Agent
Paper # AI2009-22
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Conference Information
Committee AI
Conference Date 2010/1/15(1days)
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Paper Information
Registration To Artificial Intelligence and Knowledge-Based Processing (AI)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Self-Supervised Mining Human Activity from the Web
Sub Title (in English)
Keyword(1) Human Activity
Keyword(2) Semantic Network
Keyword(3) Web Mining
Keyword(4) Self-Supervised Learning
Keyword(5) Real-world Agent
1st Author's Name THE Nguyen MINH
1st Author's Affiliation ()
2nd Author's Name Takahiro KAWAMURA
2nd Author's Affiliation
3rd Author's Name Hiroyuki NAKAGAWA
3rd Author's Affiliation
4th Author's Name Yasuyuki TAHARA
4th Author's Affiliation
5th Author's Name Akihiko OHSUGA
5th Author's Affiliation
Date 2010-01-22
Paper # AI2009-22
Volume (vol) vol.109
Number (no) 386
Page pp.pp.-
#Pages 6
Date of Issue