• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2017 Fiscal Year Annual Research Report

FeelHelper: Development of technology for cyberbullying mitigation focusing on both perpetrator and victim

Research Project

Project/Area Number 15K16044
Research InstitutionKitami Institute of Technology

Principal Investigator

プタシンスキ ミハウ  北見工業大学, 工学部, 助教 (60711504)

Project Period (FY) 2015-04-01 – 2018-03-31
Keywordsネットいじめ / ネットいじめ検出 / 自然言語処理 / パターン抽出
Outline of Annual Research Achievements

これまでの研究に基づいて,まずネットいじめを含む文書(書き込みなど)の前処理として,感情解析用のシステムをオープンソースとして公開しJournal of Open Research Softwareにて発表した.また,感情解析の結果を含むネットいじめ書き込みの分析実験の結果の対照的分析を行い,Technical Transactionsにて発表した.さらにネットいじめ検出方法の最適化実験の一つとして以前に用いた文法的素性のほかに意味的(セマンティック)素性を用いて実験を行い,その結果をJournal of Advanced Computational Intelligence and Intelligent Informaticsにて公開した.実験結果としてネットいじめ検出においては意味的素性は文法的素性より低い結果をもたらすことが分かった.さらに,本研究課題にて作成したシステムをID交換掲示板における有害な書き込みの検出にも応用し,開発システムのSNS上の性能を確認することができた.また,ネットいじめの書き込みでは,顔文字や曖昧な表現が頻出し分析は困難であるため,書き込みにおける顔文字及びその意味曖昧性を推定するシステムを開発し8th Language & Technology Conference (LTC)国際会議にて研究成果発表会を行った.さらに,これまでに日本語のために開発してきた技術をほかの自然言語のひとつであるポーランド語にも応用し十分な結果を確認し,8th Language & Technology Conference (LTC)国際会議にて成果発表会を行った.
開発したシステムの検出性能をより向上させるために,畳み込みニューラルネットワークをベースにした深層学習の手法まで応用し,さらに性能向上を行うことができ検出結果を93.5%まで引き上げることができた.

  • Research Products

    (18 results)

All 2018 2017

All Journal Article (7 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 7 results,  Open Access: 6 results) Presentation (11 results) (of which Int'l Joint Research: 9 results,  Invited: 1 results)

  • [Journal Article] ID交換掲示板における書きこみの隠語表記揺れを考慮した有害性評価2018

    • Author(s)
      安彦智史,長谷川大,プタシンスキ ミハウ,中村健二,佐久田博司
    • Journal Title

      情報システム学会誌

      Volume: 13/2 Pages: 41-58

    • Peer Reviewed
  • [Journal Article] "Future Reference Sentence Extraction in Support of Future Event Prediction"2018

    • Author(s)
      Yoko Nakajima, Michal Ptaszynski, Hirotoshi Honma, Fumito Masui
    • Journal Title

      International Journal of Computational Linguistics Research (IJCLR)

      Volume: 9/1 Pages: 27-41

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] "From Words to Emoticons: Deep Emotion Recognition in Text and Its Wider Implications"2018

    • Author(s)
      Rafal Rzepka, Mitsuru Takizawa, Jordi Vallverdu, Michal Ptaszynski, Pawel Dybala, Kenji Araki
    • Journal Title

      International Journal of Computational Linguistics Research (IJCLR)

      Volume: 9/1 Pages: 10-26

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] "The use of Genetic Algorithm to optimize Quantitative Learner's Motivation Model"2018

    • Author(s)
      Pawel Lempa, Michal Ptaszynski, Fumito Masui
    • Journal Title

      Technical Transactions

      Volume: 4 Pages: 189-194

    • DOI

      10.4467/2353737XCT.18.066.8378

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] ML-Ask: Open Source Affect Analysis Software for Textual Input in Japanese2017

    • Author(s)
      Michal Ptaszynski, Pawel Dybala, Rafal Rzepka, Kenji Araki, Fumito Masui
    • Journal Title

      Journal of Open Research Software

      Volume: 5/1 Pages: 1-16

    • DOI

      http://doi.org/10.5334/jors.149

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] "Experiments with Language Combinatorics in Text Classification: Lessons Learned and Future Implications"2017

    • Author(s)
      Michal Ptaszynski, Fumito Masui
    • Journal Title

      Technical Transactions

      Volume: 11 Pages: 183-197

    • DOI

      10.4467/2353737XCT.17.200.7429

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] "A Method for Detection of Harmful Entries on Informal School Websites with Morphosemantic Patterns"2017

    • Author(s)
      Michal Ptaszynski, Fumito Masui, Yoko Nakajima, Yasutomo Kimura, Rafal Rzepka, Kenji Araki
    • Journal Title

      Journal of Advanced Computational Intelligence and Intelligent Informatics (JACIII)

      Volume: 21/7 Pages: 1189-1201

    • DOI

      10.20965/jaciii.2017.p1189

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] "Can one emoticon say a thousand words?: Automatic estimation of meaning ambiguity of emoticons based on linguistic expressibility"2017

    • Author(s)
      Naoto Ishii, Fumito Masui, Michal Ptaszynski
    • Organizer
      8th Language & Technology Conference
    • Int'l Joint Research
  • [Presentation] "Three attempts in PolEval 2017 Sentiment Analysis Task"2017

    • Author(s)
      Michal Ptaszynski, Fumito Masui, Arkadiusz Janz, Jan Kocon, Maciej Piasecki, Monika Zasko-Zielinska, Pawel Dybala
    • Organizer
      8th Language & Technology Conference
    • Int'l Joint Research
  • [Presentation] "Improving Tokenization, Transcription Normalization and Part-of-speech Tagging of Ainu Language through Merging Multiple Dictionaries"2017

    • Author(s)
      Karol Nowakowski, Michal Ptaszynski, Fumito Masui
    • Organizer
      8th Language & Technology Conference
    • Int'l Joint Research
  • [Presentation] "Big Data Analytics for Enrichment of Rural Area Content Tourism in Okhotsk Sub-Prefecture of Japan"2017

    • Author(s)
      Ali Bakdur, Fumito Masui, Michal Ptaszynski
    • Organizer
      International Multi-Conference on Engineering and Technology Innovation 2017 (IMETI 2017)
    • Int'l Joint Research
  • [Presentation] "Learning Deep on Cyberbullying is Always Better Than Brute Force"2017

    • Author(s)
      Michal Ptaszynski, Juuso Kalevi Kristian Eronen and Fumito Masui
    • Organizer
      IJCAI 2017 3rd Workshop on Linguistic and Cognitive Approaches to Dialogue Agents (LaCATODA 2017)
    • Int'l Joint Research
  • [Presentation] "A Prototype Method for Future Event Prediction Based on Future Reference Sentence Extraction"2017

    • Author(s)
      Yoko Nakajima, Michal Ptaszynski, Hirotoshi Honma, Fumito Masui
    • Organizer
      IJCAI 2017 3rd Workshop on Linguistic and Cognitive Approaches to Dialogue Agents (LaCATODA 2017)
    • Int'l Joint Research
  • [Presentation] "Experiments with Language Combinatorics in Language Classification: Lessons Learned and Future Implications"2017

    • Author(s)
      Michal Ptaszynski, Fumito Masui
    • Organizer
      International Conference on Computer Aided Mechanical Engineering (CAME 2017)
    • Int'l Joint Research
  • [Presentation] "The use of Genetic Algorithms to optimize Quantitative Learner's Motivation Model"2017

    • Author(s)
      Pawel Lempa, Michal Ptaszynski, Fumito Masui
    • Organizer
      International Conference on Computer Aided Mechanical Engineering (CAME 2017)
    • Int'l Joint Research
  • [Presentation] "What we talk about when we talk about emotions in robots"2017

    • Author(s)
      Michal Ptaszynski
    • Organizer
      Emotions of Robots in Narrative of Culture and Technology
    • Int'l Joint Research / Invited
  • [Presentation] Combining Multiple Dictionaries to Improve Tokenization of Ainu Language2017

    • Author(s)
      Michal Ptaszynski, Yuka Ito, Karol Nowakowski, Hirotoshi Honma, Yoko Nakajima, Fumito Masui
    • Organizer
      The 31st Annual Conference of the Japanese Society for Artificial Intelligence (JSAI 2017)
  • [Presentation] 言語表現性に基づく顔文字の意味の曖昧性の自動推定2017

    • Author(s)
      石井 直人, 桝井 文人, プタシンスキ ミハウ
    • Organizer
      The 31st Annual Conference of the Japanese Society for Artificial Intelligence (JSAI 2017)

URL: 

Published: 2018-12-17  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi