Tokushima University / Educator and Researcher Directory --- Hattori, Kota

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Tokushima University ⟩ Graduate School of Technology, Industrial and Social Sciences ⟩ 社会総合科学域 ⟩ 国際教養系 ⟩ 英語圏分野 ⟩
Tokushima University ⟩ Faculty of Integrated Arts and Sciences ⟩ Department of Integrated Arts and Social Sciences ⟩ Comparative Studies in Society and Culture ⟩

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Research

Field of Study

○	Speech science
○	Data science

Subject of Study

○	Human's speech perception and production
○	digital humanities

Book / Paper

Academic Paper (Judged Full Paper):

1.	Tong Zhao, Motohiro Ishida and Kota Hattori : The Discrimination against Non-financial Characteristics of Borrowers in Chinese P2P Lending, パーソナルファイナンス研究, Vol.7, 13-24, 2020. (Summary) <p>The market of Chinese P2P Lending has rapidly grown in the last ten years. We use transaction records of RRD, which is one of the leading platforms in Chinese P2P Lending, to analyze the financial discrimination in this market. Using the non-financial characteristics of borrowers, including five variables--gender, age, educational background, marital status, and working location, we estimate the funding rate, default rate, and return rate of the loan securities. Different from standard economics, the estimation results of these variables are significant, which means that non-financial characteristics are as important as financial ones for lenders. Moreover, we find that the discrimination regarding gender, marital status, and working location is rational statistical discrimination, while discrimination on age is irrational taste-based discrimination.</p> (Keyword) P2Pネット金融 / 地域金融差別 (Link to Publication Site) ● Publication site (DOI): 10.20752/japf.7.0_13 (Link to Search Site for Scientific Articles) ● CiNii @ National Institute of Informatics (CRID): 1390289564745064320 ● Search Scopus @ Elsevier (DOI): 10.20752/japf.7.0_13 (DOI: 10.20752/japf.7.0_13, CiNii: 1390289564745064320)
2.	Kota Hattori, Akihiro Tsukamoto and Kei Tanaka : Examination of Gauguins Color Preference, Papers and Proceedings of the Geographic Information Systems Association, Vol.27, 1-4, 2018.
3.	Kota Hattori and Iverson Paul : Examination of the Relationship between L2 Perception and Production: An Investigation of English /r/-/l/ Perception and Production by Adult Japanese Speakers, Second Language Studies: Acquisition, Learning, Education and Technology, Interspeech 2010, 2-4, 2010.
4.	Kota Hattori and Iverson Paul : English /r/-/l/ category assimilation by Japanese adults: Individual differences and the link to identification accuracy, The Journal of the Acoustical Society of America, Vol.125, No.1, 469-479, 2009. (Summary) Native speakers of Japanese often have difficulty identifying English /r/ and /l/, and it has been thought that second-language (L2) learning difficulties like this are caused by how L2 phonemes are assimilated into ones native phonological system. This study took an individual difference approach to examining this relationship by testing the category assimilation of Japanese speakers with a wide range of English /r/-/l/ identification abilities. All Japanese subjects were assessed in terms of (1) their accuracy in identifying English /r/ and /l/, (2) their assimilation of /r/ and /l/ into their Japanese flap category, (3) their production of /r/ and /l/, and (4) their best-exemplar locations for /r/, /l/, and Japanese flap in a five-dimensional set of synthetic stimuli (F1, F2, F3, closure duration, and transition duration). The results demonstrated that Japanese speakers assimilate /l/ into their flap category more strongly than they assimilate /r/. However, there was little evidence that category assimilation was predictive of English /r/-/l/ perception and production. Japanese speakers had three distinct best exemplars for /r/, /l/, and flap, and only their representation of F3 in /r/ and /l/ was predictive of identification ability. (Keyword) Adult / Asian Continental Ancestry Group / Female / Humans / Male / Middle Aged / Multilingualism / Phonetics / Speech / Speech Perception / Speech Production Measurement (Link to Publication Site) ● Publication site (DOI): 10.1121/1.3021295 (Link to Search Site for Scientific Articles) ● PubMed @ National Institutes of Health, US National Library of Medicine (PMID): 19173432 ● Search Scopus @ Elsevier (PMID): 19173432 ● Search Scopus @ Elsevier (DOI): 10.1121/1.3021295 (DOI: 10.1121/1.3021295, PubMed: 19173432)
5.	Kota Hattori and Iverson Paul : Examination of similarity between English /r/, /l/, and Japanese flap: An investigation of best exemplars by English and Japanese speakers, 16th International Congress of Phonetic Sciences, 1777-1780, 2007. (Keyword) speech science / phonetics

Academic Paper (Unrefereed Paper):

1.	Akihiro Tsukamoto, Osamu Sahara, Masafumi Miwa, Ryoichi Yamanaka, Kenji Terada, Kota Hattori and Takuya Matsumoto : 係留気球と無人航空機を活用した災害対応情報支援システムの構想, Theory and Applications of GIS, Vol.30, No.2, 143, 2022.
2.	Kota Hattori and Akihiro Tsukamoto : Is there any seasonal trend in restaurants?, Papers and Proceedings of the Geographic Information Systems Association, 2017.
3.	Kota Hattori and Akihiro Tsukamoto : How do backpackers plan to travel with a mobile application?, Papers and Proceedings of the Geographic Information Systems Association, 2016.
4.	Kota Hattori and Akihiro Tsukamoto : Where are good hitchhiking points? - Data analysis and visualization of Hitchwiki, Papers and Proceedings of the Geographic Information Systems Association, Vol.24, 2015. (Keyword) geographic information system / HItchwiki

Proceeding of International Conference:

1.	Kota Hattori and Shinsuke Kishie : Classification of Chubu-region dialects using random forest, The 185th Meeting of the Acoustical Society of America, Dec. 2023. (Keyword) Dialectology / machine learning
2.	Kota Hattori and Shinsuke Kishie : Classification of Kansai and Chugoku dialects spoken by old Japanese speakers, The 184th Meeting of the Acoustical Society of America, May 2023. (Keyword) Dialectology / machine learning
3.	Kota Hattori and Shinsuke Kishie : Classification of Kansai dialects, The Seventeenth International Conference on Methods in Dialectology, Aug. 2022. (Keyword) Diametric / Cluster analysis / dialectology
4.	Akihiro Tsukamoto and Kota Hattori : Tracking Backpackers 24/7, --- Global and Local Search Tendency ---, Esri User Conference 2020, virtual event, Jul. 2020.
5.	Mio Takei, Tomokazu Fujino, Kota Hattori and Keisuke Honda : Understanding Research Trends Based on Paper Abstracts Using Topic Modeling, 6th International IBM Cloud Academy Conference ICACON 2018, May 2018.
6.	Kota Hattori : How do yelp reviewers express their satisfactory and unsatisfactory feelings?, 6th International IBM Cloud Academy Conference ICACON 2018, May 2018.
7.	Kota Hattori : Topic modeling with TED talk - Can we find any trends in topics?, International Humanities Forum, Feb. 2017.
8.	Kota Hattori, Shinsuke Kishie, Sakoguchi Yukako, Kimura Takashi and Nanami Shiokawa : How fast would it be? - Observing the distribution of emerging words through Twitter, New Ways of Analyzing Variation Asia-Pacific 4, 190-191, Apr. 2016. (Keyword) text mining / geographical information system / social network service
9.	Shinsuke Kishie, Matsunaga Shuichi, Kimura Takashi, Abe Shin and Kota Hattori : Conducting research on the geographical linguistics by utilizing the data comprising, New Ways of Analyzing Variation Asia-Pacific 4, 183-184, Apr. 2016.
10.	Kota Hattori and Akihiro Tsukamoto : Examination of travellers information search with a mobile application, Annual Conference of the Association of American Geographers, San Francisco, Mar. 2016.
11.	Kota Hattori, Derrick Donald and Hay Jen : Examination of spontaneous non-native directed speech, The 14th Australian International Conference on Speech Science and Technology, Dec. 2012.
12.	Kota Hattori and Iverson Paul : Examination of the relationship between L2 perception and production: An investigation of English /r/-/l/ perception and production by adult Japanese speakers, Interspeech 2010 Satellite Workshop on Second Language Studies: Acquisition, Learning, Education, and Learning, Sep. 2010.
13.	Kota Hattori and Iverson Paul : English /r/-/l/ pronunciation training for Japanese speakers, 155th Meeting of the Acoustical Society of America, Jun. 2008. (Keyword) Speech science / phonetics
14.	Kota Hattori and Iverson Paul : Examination of similarity between English /r/, /l/, and Japanese flap: An investigation of best exemplars by English and Japanese speakers, 16th International Congress of Phonetic Sciences, 1777-1780, Aug. 2007. (Keyword) Speech science / phonetics

Proceeding of Domestic Conference:

1.	Kota Hattori : Classification of Kansai and Chugoku dialects, The Institute of Statistical Mathematics, Dec. 2022.
2.	Akihiro Tsukamoto, Osamu Sahara, Masafumi Miwa, Ryoichi Yamanaka, Kenji Terada, Kota Hattori and Takuya Matsumoto : Conceptual System of the Disaster Support Using a Tethered Balloon and UAV, 31th Geographic Information System Association Conference, Vol.Poster, No.10, Oct. 2022.
3.	Kota Hattori : He swung and a miss! Clustering swinging strikes - The case of Shohei Otani, データ解析環境Rの整備と利用, Dec. 2021. (Keyword) Sabermetrics
4.	Kota Hattori : Analysis of lexical diffusion in Kansai area using Twitter, データ解析環境Rの整備と利用, Dec. 2020. (Keyword) Lexical diffusion / Data Science / R language / Twitter
5.	Shichijo Akane and Kota Hattori : 2016年アメリカ大統領選挙における，ヒスパニックの投票傾向の分析, データ解析環境Rの整備と利用, Dec. 2020. (Keyword) Political Science / Data Science / R language
6.	Shichijo Akane, Kota Hattori and Akihiro Tsukamoto : 人気ご当地ナンバープレートはどこ?, 第15回GISコミュニティフォーラム, May 2019.
7.	Kota Hattori : What students think about their universities, Cooperative Research Report,The Institute of Statistical Mathematics, Dec. 2018.
8.	Kota Hattori, Akihiro Tsukamoto and Kei Tanaka : The examination of Gauguin's color preference (poster presentation), 第27回地理情報システム学会, Oct. 2018.
9.	Kota Hattori : Writing tendencies of Yelpers, A Workshop for statistical modeling for Institutional Research, Oct. 2018.
10.	Kota Hattori, Akihiro Tsukamoto and Kei Tanaka : 「ゴーギャンー楽園への旅とパレットの変化ー」(ポスター発表), 第14回GISコミュニティフォーラム2018, May 2018.
11.	Kota Hattori : Does this crepe disappoint you?, 統計理数理数研究所, Nov. 2017. (Keyword) text mining / yelp
12.	Nanami Shiokawa, Akihiro Tsukamoto, Kota Hattori, 林琳 and Shinsuke Kishie : 教えて!あなたの地域の``○○焼き'', 第13回ESRIコミュニティフォーラム2017, May 2017.
13.	Akihiro Tsukamoto and Kota Hattori : 追跡!バックパッカー24時 Tracking backpackers 24/7, 第13回ESRIコミュニティフォーラム2017, May 2017.
14.	Kota Hattori : Topic modeling with TED talk, 統計理数研究所, Nov. 2016.
15.	Kota Hattori : Hitchhiker's mind space in the Netherlands, 統計理数理数研究所, Dec. 2015.

Et cetera, Workshop:

1.	Kota Hattori : Introduction to the sentimentr package, Fukuoka R, Sep. 2018.
2.	Kota Hattori : Are you stuck? - How to ask questions on Stack Overflow, Fukuoka R, Mar. 2018.

Grants-in-Aid for Scientific Research (KAKEN Grants Database @ NII.ac.jp)

Classification of contemporary Kansai dialects (Project/Area Number: 24K03842 )
Classification of regional dialects in Japanese (Project/Area Number: 20K20702 )
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