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2022 Fiscal Year Final Research Report

Improving Information Access in Financial Markets through Heterogeneous Information Network Mining

Research Project

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Project/Area Number 20K20130
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 90020:Library and information science, humanistic and social informatics-related
Research InstitutionThe University of Tokyo

Principal Investigator

Hisano Ryohei  東京大学, 大学院情報理工学系研究科, 講師 (60725018)

Project Period (FY) 2020-04-01 – 2023-03-31
Keywordsネットワーク学習
Outline of Final Research Achievements

This study aims to integrate big data as a knowledge graph, develop analysis techniques, and create a foundational technology for market participants to search for necessary insights widely. A method for analyzing large-scale news data was developed in the first year. The hierarchical structure of the influence network of foreign policy was successfully extracted using the Helmholtz-Hodge decomposition. In the second year, analyzing data on the timing of adding entities to each country's smart sanctions list highlighted the power balance of foreign policy. In the third year, the structural analysis of law and precedent was further developed, and research was carried out from a new perspective of analyzing bank transfer data. As a result, a paper was published in several international journals.

Free Research Field

データサイエンス

Academic Significance and Societal Importance of the Research Achievements

金融市場はもちろんのこと、情報が意思決定の重要な基盤となる領域において、意思決定者が社会の持続的発展に貢献するためには、参加者が広範囲にわたって十分に正確な情報に基づいて意思決定を行うことが必要不可欠である。そこで本研究では、ビッグデータの集合体を異種情報ネットワークとして統合し、ネットワークやテキストマイニングを基盤とした分析技術を開発することで、市場参加者が多様な情報の中から必要な知見を合理的かつ広範囲に検索するための基盤技術を創出する。本研究によって、参加者が無知によって望まない判断をすることを防ぐことができるようになる。

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Published: 2024-01-30  

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