Category Estimation of Complaint Reports about City Park

Yuta Sano, Kohei Yamaguchi, Tsunenori Mine

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

A lot of actions have recently been taken to support Government 2.0 movement. As the number of the actions increase, many people submit greater number of complaint reports by phone or mobile devices, and make sure the situation reported with each other. According to the actions, the delay in taking action of the government side becomes more clearly identified due to overloads of the government side to deal with the activities. To remedy the above situations, it increases of importance to develop an efficient approach to deal with the complaint reports. Automatic classification of the complaint reports, or estimation and extraction of demanding sentences from the reports are contributory to the approach. In this paper, we propose a method of automatically estimating categories of the complaint reports as a first step. We conducted experiments of estimating categories of the complaint reports. The experiment results showed the following findings: (1) Feature selection is a key to improve the F-score of estimating categories of complaint reports. The percentage of the words strongly effective for the category estimation is about 3.9% of the entire distinct words. (2) Proposed Mutual-Information-based methods outperform the F-score of a conventional Random-Forest-based method. (3) The F-score performance of estimating a category depends on the ambiguity level of the category. In particular, the F-score of estimating categories of a complaint report assigned multiple categories is 1.5 times worse than that of a complaint report assigned single category.

Original languageEnglish
Title of host publicationProceedings - 2015 IIAI 4th International Congress on Advanced Applied Informatics, IIAI-AAI 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages61-66
Number of pages6
ISBN (Electronic)9781479999583
DOIs
Publication statusPublished - Jan 6 2016
Event4th IIAI International Congress on Advanced Applied Informatics, IIAI-AAI 2015 - Okayama, Japan
Duration: Jul 12 2015Jul 16 2015

Other

Other4th IIAI International Congress on Advanced Applied Informatics, IIAI-AAI 2015
CountryJapan
CityOkayama
Period7/12/157/16/15

Fingerprint

Mobile devices
Feature extraction
Experiments

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications
  • Computer Science Applications
  • Computer Vision and Pattern Recognition

Cite this

Sano, Y., Yamaguchi, K., & Mine, T. (2016). Category Estimation of Complaint Reports about City Park. In Proceedings - 2015 IIAI 4th International Congress on Advanced Applied Informatics, IIAI-AAI 2015 (pp. 61-66). [7373877] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IIAI-AAI.2015.195

Category Estimation of Complaint Reports about City Park. / Sano, Yuta; Yamaguchi, Kohei; Mine, Tsunenori.

Proceedings - 2015 IIAI 4th International Congress on Advanced Applied Informatics, IIAI-AAI 2015. Institute of Electrical and Electronics Engineers Inc., 2016. p. 61-66 7373877.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sano, Y, Yamaguchi, K & Mine, T 2016, Category Estimation of Complaint Reports about City Park. in Proceedings - 2015 IIAI 4th International Congress on Advanced Applied Informatics, IIAI-AAI 2015., 7373877, Institute of Electrical and Electronics Engineers Inc., pp. 61-66, 4th IIAI International Congress on Advanced Applied Informatics, IIAI-AAI 2015, Okayama, Japan, 7/12/15. https://doi.org/10.1109/IIAI-AAI.2015.195
Sano Y, Yamaguchi K, Mine T. Category Estimation of Complaint Reports about City Park. In Proceedings - 2015 IIAI 4th International Congress on Advanced Applied Informatics, IIAI-AAI 2015. Institute of Electrical and Electronics Engineers Inc. 2016. p. 61-66. 7373877 https://doi.org/10.1109/IIAI-AAI.2015.195
Sano, Yuta ; Yamaguchi, Kohei ; Mine, Tsunenori. / Category Estimation of Complaint Reports about City Park. Proceedings - 2015 IIAI 4th International Congress on Advanced Applied Informatics, IIAI-AAI 2015. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 61-66
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