Journal of the Korean Institute of Intelligent Systems (한국지능시스템학회논문지)

Korean Institute of Intelligent Systems (한국지능시스템학회)
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Technology Forecasting using Bayesian Discrete Model

베이지안 이산모형을 이용한 기술예측

  • Jun, Sunghae (Department of Statistics, Cheongju University)
  • Received : 2017.02.01
  • Accepted : 2017.02.26
  • Published : 2017.04.25
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Abstract

Technology forecasting is predict future trend and state of technology by analyzing the results so far of developing technology. In general, a patent has novel information about the result of developed technology, because the exclusive right of technology included in patent is protected for a time period by patent law. So many studies on the technology forecasting using patent data analysis has been performed. The patent keyword data widely used in patent analysis consist of occurred frequency of the keyword. In most previous researches, the continuous data analyses such as regression or Box-Jenkins Models were applied to the patent keyword data. But, we have to apply the analytical methods of discrete data for patent keyword analysis because the keyword data is discrete. To solve this problem, we propose a patent analysis methodology using Bayesian Poisson discrete model. To verify the performance of our research, we carry out a case study by analyzing the patent documents applied by Apple until now.

기술예측은 과거부터 현재까지의 기술개발 결과를 수집, 분석하여 특정 기술의 미래 추세 및 상태를 예측하는 것이다. 일반적으로 특허는 현재까지의 기술개발 결과를 가장 잘 가지고 있다. 왜냐하면 특허에 포함된 세부 기술은 일정기간 동안 배타적 권리가 법에 의해 보장되기 때문이다. 따라서 특허 데이터의 분석을 이용한 기술예측의 다양한 연구가 진행되었다. 특허문서의 분석을 위하여 널리 사용되는 특허 키워드 데이터는 주로 기술키워드에 대한 빈도 값으로 이루어진다. 기존의 많은 특허분석에서는 회귀분석, 박스-젠킨스 모형 등 연속형 데이터분석 기법이 적용하였다. 하지만 빈도 데이터는 이산형 데이터이기 때문에 이산형 데이터분석 방법을 사용해야 한다. 본 연구에서는 이와 같은 문제점을 해결하기 위하여 베이지안 포아송 이산모형을 이용한 특허분석 방법을 제안한다. 연구방법의 성능평가를 위하여 지금까지 출원, 등록된 애플의 전체특허를 분석하여 향후 기술을 예측하는 사례분석을 수행한다.

Keywords

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