Updated on 2021/07/21

写真b

 
ITO Mariko
 
*Items subject to periodic update by Rikkyo University (The rest are reprinted from information registered on researchmap.)
Affiliation*
Graduate School of Artificial Intelligence and Science Artificial Intelligence and Science
Title*
Assistant Professor
Degree
博士 (理学) ( 総合研究大学院大学 )
Research Interests
  • Collective decision making

  • Social networks

  • Campus Career*
    • 4 2020 - Present 
      Graduate School of Artificial Intelligence and Science   Artificial Intelligence and Science   Assistant Professor
     

    Research Areas

    • Natural Science / Applied mathematics and statistics

    • Natural Science / Basic mathematics

    Research History

    • 4 2020 - Present 
      RIKKYO UNIVERSITY   Graduate School of Artificial Intelligence and Science Artificial Intelligence and Science   Assistant Professor

      More details

    • 4 2019 - 3 2020 
      The University of Tokyo   Graduate School of Information Science and Technology, Social ICT Research Center   Project Researcher

      More details

    • 10 2018 - 3 2019 
      SOKENDAI (The graduate university for advanced sciences)   School of advanced sciences   Postdoctoral fellow

      More details

    Education

    • 4 2013 - 9 2018 
      SOKENDAI (The graduate university for advanced studies)   School of advanced studies   Department of evolutionary studies of biosystems, Five-year doctoral course

      More details

    Awards

    • 6 2021  
      日本コンピュータ化学会2021春季年会  優秀ポスター賞 

      More details

    • 5 2018  
      Japan student services organization (JASSO)  Repayment exemption for students with excellent grades, Type I scholarship (Exemption of half of loan) 
       
      Mariko Ito

      More details

    • 5 2010  
      Japan student services organization (JASSO)  Repayment exemption for students with excellent grades, Type I scholarship (Exemption of half of loan) 
       
      Mariko Ito

      More details

    Papers

    • Co-occurrence network of TV advertisements revealing Japanese lifestyle Peer-reviewed

      Mariko I. Ito, Takaaki Ohnishi

      Applied Network Science6 ( 1 )   7 2021

      More details

      Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer Science and Business Media LLC  

      <title>Abstract</title>The relationship between culture and the appeals in TV advertisements has been extensively studied. We attempted to reveal the image structure produced by TV commercials in Japan, which may show the cultural features of the country, and to evaluate its temporal change. For this purpose, we constructed and analysed a co-occurrence network of keywords related to TV commercials by using immense data that include the records of all TV commercials aired in the Kanto area in Japan including Tokyo for a period of 15 years. We found a strong heterogeneity of the co-occurrence relationship, where a few keywords, e.g., ‘woman’, ‘man’, ‘animation’, and ‘logo’, co-occur with a huge number of other keywords every year. A community on a co-occurrence network can be regarded as a set of keywords that are mutually associated with each other through TV commercials. We examined the characteristics of the communities by associating them with categories of advertised products and found a temporal change in which the relationship between the communities possessing the image of entertainment and children and the category of PC and A/V gradually increases in strength. However, there was a consistent tendency in the examined period for the product categories related to communities that include ‘man’ to be less associated with those that include ‘woman’ and vice versa, which implicates a gender role inequality underlying the various appeals in TV commercials.

      DOI: 10.1007/s41109-021-00393-4

      researchmap

      Other Link: https://link.springer.com/article/10.1007/s41109-021-00393-4/fulltext.html

    • Largest Connected Component and Free Energy of Microphase Separated Structures. Invited Peer-reviewed

      Hironobu KAWAGUCHI, Mariko I. ITO, Sadato YAMANAKA, Takeshi AOYAGI, Takaaki OHNISHI

      Journal of Computer Chemistry, Japan19 ( 4 ) 136 - 138   4 2021

      More details

      Authorship:Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:Society of Computer Chemistry Japan  

      DOI: 10.2477/jccj.2021-0001

      researchmap

    • Uncovering the Image Structure of Japanese TV Commercials Through a Co-occurrence Network Representation Peer-reviewed

      Mariko I. Ito, Takaaki Ohnishi

      In: Benito R.M., Cherifi C., Cherifi H., Moro E., Rocha L.M., Sales-Pardo M. (eds) Complex Networks & Their Applications IX. COMPLEX NETWORKS 2020. Studies in Computational Intelligence943   273 - 283   12 2020

      More details

      Authorship:Lead author, Corresponding author   Language:English   Publishing type:Part of collection (book)   Publisher:Springer International Publishing  

      DOI: 10.1007/978-3-030-65347-7_23

      researchmap

    • Evaluation of the Heterogeneous Spatial Distribution of Population and Stores/Facilities by Multifractal Analysis. Peer-reviewed

      Mariko I. Ito, Takaaki Ohnishi

      Frontiers in Physics8   291   8 2020

      More details

      Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

      researchmap

    • Weighted Network Analysis for Computer-Aided Drug Discovery Peer-reviewed

      Mariko I. Ito, Takaaki Ohnishi

      In: Czarnowski I., Howlett R., Jain L. (eds) Intelligent Decision Technologies. IDT 2020. Smart Innovation, Systems and Technologies193   27 - 36   6 2020

      More details

      Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (international conference proceedings)  

      researchmap

    • Multifractal analysis of microphase separated structure in block copolymers Invited Peer-reviewed

      Mariko I. Ito, Sadato Yamanaka, Takeshi Aoyagi, Takaaki Ohnishi

      Journal of Computer Chemistry, Japan18 ( 5 ) 214 - 216   3 2020

      More details

      Authorship:Lead author, Corresponding author   Language:Japanese   Publishing type:Research paper (scientific journal)  

      researchmap

    • Self-organization of reference structure and its effect on decision accuracy

      Mariko Ito

      SOKENDAI (The graduate university of advanced studies)   6 2018

      More details

      Language:English   Publishing type:Doctoral thesis  

      researchmap

    • Emergence of opinion leaders in reference networks Peer-reviewed

      Mariko I. Ito, Hisashi Ohtsuki, Akira Sasaki

      PLOS ONE13 ( 3 ) e0193983 - e0193983   26 3 2018

      More details

      Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Public Library of Science (PLoS)  

      DOI: 10.1371/journal.pone.0193983

      researchmap

    • A Qualitative Analysis of 2-way Communication in Journalist in Residence Programme in Mathematics

      Mariko Ito

      SOKENDAI (The graduate university for advanced sciences)   5 2016

      More details

      Language:Japanese   Publishing type:Thesis (other)  

      researchmap

    • Embedding of certain compact nilmanifolds into a complex projective space and Berezin-Töplits quantization

      Mariko Ito

      Tokyo university of science   3 2010

      More details

      Language:Japanese   Publishing type:Master’s thesis  

      researchmap

    ▼display all

    Misc.

    • 医療施設の診療圏内の年齢階級別人口分布とその時空間変化

      伊藤毅, 伊藤真利子, 大西立顕

      情報処理学会 第83回全国大会講演論文集   4-447 - 4-448   3 2021

      More details

      Language:Japanese  

      researchmap

    • Correlation between topics in newspaper articles calculated by LDA and stock index

      Jo Takezawa, Mariko I. Ito, Takaaki Ohnishi

          3 2021

      More details

    • Quantification of microphase separated structures from the viewpoint of multifractal Peer-reviewed

      Mariko I. Ito, Sadato Yamanaka, Takeshi Aoyagi, Takaaki Ohnishi

      Proceedings of the 2020 International Symposium on Nonlinear Theory and its Applications (NOLTA2020)   480 - 483   11 2020

      More details

      Authorship:Lead author, Corresponding author   Language:English   Publishing type:Article, review, commentary, editorial, etc. (international conference proceedings)  

      researchmap

    • Fractal Patterns in Spatial Distribution of Population by Age Group

      Mariko I. Ito, Takaaki Ohnishi

      arXiv:2005.03935   5 2020

      More details

      Authorship:Lead author   Language:English   Publishing type:Internal/External technical report, pre-print, etc.  

      researchmap

    • Weighted Network Analysis of Biologically Relevant Chemical Spaces

      Mariko I. Ito, Takaaki Ohnishi

      arXiv:1911.05259   11 2019

      More details

      Language:English   Publishing type:Internal/External technical report, pre-print, etc.  

      researchmap

    • Investigation on the structure of chemical space by weighted network analysis

      Mariko Ito, Takaaki Ohnishi

      Proceedings of the Symposium on Chemoinformatics2019   1P10   10 2019

      More details

      Language:Japanese   Publishing type:Research paper, summary (national, other academic conference)  

      researchmap

    ▼display all

    Presentations

    • エラストマーの一軸伸長における架橋点間距離の変化のネットワーク構造依存性

      伊藤真利子, 天本義史, 大西立顕

      日本コンピュータ化学会2021春季大会  5 6 2021 

      More details

      Event date: 5 6 2021 - 6 6 2021

      Language:Japanese   Presentation type:Poster presentation  

      researchmap

    • Burstiness and accuracy of collective decision-making

      Mariko Ito

      DPG Spring Meeting  22 3 2021 

      More details

      Event date: 22 3 2021 - 24 3 2021

      Language:English   Presentation type:Poster presentation  

      researchmap

    • Intervals of decision statements and accuracy of collective decision-making

      Mariko Ito

      JSMB 2020  22 9 2020 

      More details

      Event date: 20 9 2020 - 22 9 2020

      Language:Japanese   Presentation type:Poster presentation  

      researchmap

    • Characterization of microphone separated structures by multifractal analysis

      Mariko Ito, Sadato Yamanaka, Takeshi Aoyagi, Takaaki Ohnishi

      The Physical Society of Japan 2020 Autumn Meeting  8 9 2020 

      More details

      Event date: 8 9 2020 - 11 9 2020

      Language:Japanese   Presentation type:Poster presentation  

      researchmap

    • Regional Difference of Store/Facility Agglomeration Observed in Japanese Telephone Directory Data

      Mariko Ito, Takaaki Ohnishi

      6th International Conference on Computational Social Science (IC2S2), Cambridge, MA USA  20 7 2020 

      More details

      Event date: 17 7 2020 - 20 7 2020

      Language:English   Presentation type:Poster presentation  

      researchmap

    • 年齢階層別人口の空間分布に対するマルチフラクタル解析

      伊藤真利子, 大西立顕

      第24回進化経済学会  24 5 2020 

      More details

      Event date: 23 5 2020 - 24 5 2020

      Presentation type:Oral presentation (general)  

      researchmap

    • ヒトの集団意思決定の正確さと数理モデル Invited

      伊藤真利子

      第11回計算社会科学とその周辺セミナー  26 2 2020 

      More details

      Language:Japanese   Presentation type:Public lecture, seminar, tutorial, course, or other speech  

      researchmap

    • Minimum spanning tree of biologically relevant chemical space

      Mariko Ito, Takaaki Ohnishi

      NetSci-X 2020, Tokyo  21 1 2020 

      More details

      Event date: 20 1 2020 - 22 1 2020

      Language:English   Presentation type:Poster presentation  

      researchmap

    • Multifractal statistics for characterising two-dimensional spatial distribution of population and stores/facilities International conference

      Mariko Ito, Takaaki Ohnishi

      CFE-CMStatistics 2019, London  15 12 2019 

      More details

      Language:English   Presentation type:Poster presentation  

      researchmap

    • Structural feature extraction on chemical space by clustering and network analysis International conference

      Mariko Ito, Takaaki Ohnishi

      Materials Research Meeting 2019, Yokohama  11 12 2019 

      More details

      Language:English   Presentation type:Oral presentation (general)  

      researchmap

    • Investigation on a more appropriate network representation of chemical subspaces International conference

      Mariko Ito, Takaaki Ohnishi

      GCC2019, 15th German Conference on Cheminformatics, Mainz  4 11 2019 

      More details

      Language:English   Presentation type:Poster presentation  

      researchmap

    • 化合物空間の重み付きネットワーク解析

      伊藤真利子, 大西立顕

      第42回ケモインフォマティクス討論会  28 10 2019 

      More details

      Language:Japanese   Presentation type:Poster presentation  

      researchmap

    • ブロック共重合体のミクロ相分離構造に対するマルチフラクタル解析

      伊藤真利子, 山中貞人, 青柳岳司, 大西立顕

      日本コンピュータ化学会2019年秋季年会  24 10 2019 

      More details

      Language:Japanese   Presentation type:Poster presentation  

      researchmap

    • An application of the drift diffusion model to the case of two-person binary choice problems

      Mariko Ito

      Theory towards Brains, Machines and Minds, RIKEN Center for Brain Science, Wako  16 10 2019 

      More details

      Language:English   Presentation type:Oral presentation (general)  

      researchmap

    • The topological features of fingerprint space and its application to the efficient retrosynthetic analysis International conference

      Mariko Ito, Takaaki Ohnishi

      Conference on Complex Systems 2019, Singapore  2 10 2019 

      More details

      Language:English   Presentation type:Oral presentation (general)  

      researchmap

    • Decision order and individuals' accuracy in sequential decision-making International conference

      Mariko Ito, Akira Sasaki

      Conference on Complex Systems 2019, Singapore  30 9 2019 

      More details

      Language:English   Presentation type:Oral presentation (general)  

      researchmap

    • Clustering of chemical space considering its topological feature

      Mariko Ito, Takaaki Ohnishi

      The Physical Society of Japan 2019 Annual Meeting, Gifu  12 9 2019 

      More details

      Language:Japanese   Presentation type:Poster presentation  

      researchmap

    • Analysis of a decision-making model DDM for two-alternative forced-choice

      Mariko Ito, Akira Sasaki, Hisashi Ohtsuki

      The Physical Society of Japan 2019 Annual Meeting, Gifu  9 2019 

      More details

      Language:Japanese   Presentation type:Oral presentation (general)  

      researchmap

    • Evolution of strength of conformity

      Mariko Ito, Hisashi Ohtsuki

      JSMB2019conference, Tokyo  9 2019 

      More details

      Language:Japanese   Presentation type:Oral presentation (general)  

      researchmap

    • Centralization in self-organised reference networks International conference

      Mariko Ito, Hisashi Ohtsuki, Akira Sasaki

      2018 Annual Meeting of the Society for Mathematical Biology & the Japanese Society for Mathematical Biology, Sydney  9 7 2018 

      More details

      Language:English   Presentation type:Oral presentation (general)  

      researchmap

    • Centralization in self-organized reference networks

      Mariko Ito, Hisashi Ohtsuki, Akira Sasaki

      The 2017 (27th) annual meeting of the Japanese Society for Mathematical Biology, Hokkaido  10 2017 

      More details

      Language:Japanese   Presentation type:Oral presentation (general)  

      researchmap

    • Emergence of opinion leaders in reference networks International conference

      Mariko Ito, Hisashi Ohtsuki, Akira Sasaki

      2016 Conference on Complex System, Amsterdam  9 2016 

      More details

      Language:English   Presentation type:Poster presentation  

      researchmap

    ▼display all

    Research Projects

    • 社会ネットワーク上の意思表明タイミングに着目した集団意思決定の実証的・理論的研究

      日本学術振興会  科学研究費助成事業 若手研究 

      伊藤 真利子

      More details

      4 2020 - 3 2023

      Grant number:20K19929

      Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

      researchmap