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--> Contact Us Sitemap Access 日本語 ENGLISH About RIEB Message Outline History Former Directors Organization Staff Accounts Internatinal Exchange Faculty Global Economy Unit Corporate Competitiveness Unit Corporate Information Unit Global Finance Unit Integrated Center for Corporate Archives Center for the Promotion of Regional Co-Creation Research Office of Promoting Research Collaboration Visiting and Adjunct Researcher Faculty Awards (in Japanese) Research Fellow Emeritus Professor Research Research Projects Publications Integrates Center for Corporate Archives Early Moden DataBase Seminars at RIEB Seminar Schedule All Seminars RIEB & Kanematsu Seminars Latin America Seminars Monetary Economics Seminar of Kobe University (in Japanese) Kanebo Seminar of Kobe University (in Japanese) Past Seminars Education & Society Symposia Social Contribution & Education Kanematsu Prize Sections Integrated Center for Corporate Archives Center for the Promotion of Regional Co-Creation Research United Nations Depository Library RIEB Library Computer Laboratory Local Page--> HOME Research Publications Discussion Paper Series（English） RIEB Discussion Paper Series No.2021-06 RIEB Discussion Paper Series No.2021-06 RIEB Discussion Paper Series No.2021-06 Title Measuring Technological Competition among Big Five Using Patent Data: A Systematic and Scalable Approach Based on Information Retrieval Technology Abstract This paper introduces a method for developing a systematic and scalable technological analysis framework based on information retrieval technology. We construct a technology information retrieval system by aggregating all information on patents (about a 100 million), and companies and individual inventors in Worldwide Patent Statistical Database (PATSTAT). Furthermore, we introduce a large-scale, systematic technological competition analysis as the framework enables a novel approach to conduct such analysis by searching technologically similar companies and individual inventors from the constructed information retrieval system. An analysis of the technological competition around the information technology giants, such as Google, Apple, Facebook, Amazon and Microsoft, surprisingly, shows that technological conflicts are not as strong as they appear to be. Keywords Technological analysis; Data science; Patent JEL Classification O31, O39 Inquiries Katsuyuki TANAKA Research Institute for Economics and Business Administration(RIEB) Center for Computational Social Science (CCSS) Kobe University Takashi KAMIHIGASHI Research Institute for Economics and Business Administration(RIEB) Center for Computational Social Science (CCSS) Kobe University Site Top About RIEB Faculty Research Seminars at RIEB Education & Society Sections Site Policy Sitemap Access Contact Information © Research Institute for Economics and Business Administration, Kobe University. All Rights Reserved. Contact Us Site Policy (in Japanese) Sitemap Access 日本語 ENGLISH