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An Exploratory Study of VR Technology using Patents and News Articles

특허와 뉴스 기사를 이용한 가상현실 기술에 관한 탐색적 연구

  • Kim, Sungbum (Department of IT Convergence, Kumoh National Institute of Technology)
  • 김성범 (금오공과대학교 IT융합학과)
  • Received : 2018.08.20
  • Accepted : 2018.11.20
  • Published : 2018.11.28

Abstract

The purpose of this study is to derive the core technologies of VR using patent analysis and to explore the direction of social and public interest in VR using news analysis. In Study 1, we derived keywords using the frequency of words in patent texts, and we compared by company, year, and technical classification. Netminer, a network analysis program, was used to analyze the IPC codes of patents. In Study 2, we analyzed news articles using T-LAB program. TF-IDF was used as a keyword selection method and chi-square and association index algorithms were used to extract the words most relevant to VR. Through this study, we confirmed that VR is a fusion technology including optics, head mounted display (HMD), data analysis, electric and electronic technology, and found that optical technology is the central technology among the technologies currently being developed. In addition, through news articles, we found that the society and the public are interested in the formation and growth of VR suppliers and markets, and VR should be developed on the basis of user experience.

Keywords

Virtual Reality;Patent;News Articles;Text Mining;Network Analysis

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Fig. 1. Analysis of Community (IPC-4 digit)

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Fig. 2. VR related News articles

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Fig. 3. Deriving the coefficient of associationnij= EC_AB, Nj=EC_A, Ni= EC_B, N= Total EC

Table 1. Number of Articles by Journal (2010~Jan. 2018)

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Table 2. Methodology and Analysis

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Table 3. Top 20 Keyword by Period

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Table 4. Top 20 Keyword by Players

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Table 5. Top 20 Keyword by IPC code

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Table 6. Analysis of Centrality (IPC- 4 digit)

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Table 7. Analysis of Centrality (IPC- 7 digit)

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Table 8. IPC Code Description

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Table 9. IPC codes and technology sector by Community

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Table 10. Keyword selection based on TF-IDF

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Table 11. Words associated with VR

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Acknowledgement

Supported by : Kumoh National Institute of Technology

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