한국융합학회논문지 (Journal of the Korea Convergence Society)

  • 제10권2호
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  • Pages.75-81
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  • 2019
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  • 2233-4890(pISSN)
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  • 2713-6353(eISSN)
한국융합학회 (Korea Convergence Society)
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국내 갑상선암 논문 토픽에 대한 융합연구

Convergence Study on Research Topics for Thyroid Cancer in Korea

  • 양지연 (금오공과대학교 응용수학과)
  • Yang, Ji-Yeon (Dept. of Applied Mathematics, Kumoh National Institute of Technology)
  • 투고 : 2018.12.26
  • 심사 : 2019.02.20
  • 발행 : 2019.02.28
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⟨ 이전 논문 다음 논문 ⟩

초록

본 연구는 통계적인 기법을 융합 활용하여 국내 갑상선암과 관련된 연구 토픽의 동향 및 변화 추세를 알아보기 위함이다. DBpia에 등록되어 있는 갑상선암 관련 논문을 대상으로 LDA(latent Dirichlet allocation) 기반의 토픽 모형을 적용한 결과, 4개의 연구 토픽을 도출하였으며 각 토픽은 "Surgery", "Disease aggressiveness", "Survival analysis", "Well-being of patients"에 관한 내용으로 확인되었다. 다범주 로짓모형을 이용하여 연구 토픽의 시대적 추이를 확인한 결과, 2000년 이전에는 "Surgery", 2000년대에는 "Disease aggressiveness"와 "Survival analysis", 2010년 이후에는 "Survival analysis"와 특히 "Well-being of patients"에 관한 연구가 많이 이루어졌음을 확인하였다. 이는 향후 갑상선암 연구의 방향 모색에 필요한 기초자료로 활용될 수 있을 것이며, 최근 환자의 복지로 크게 전환된 연구 토픽의 변화가 다른 질병에서도 관찰되는지 추후 검토할 필요가 있다.

The purpose of this study was to perform a convergence study for the investigation of the trend of research topics related to thyroid cancer in Korea. We collected related research papers from DBpia and employed LDA-based topic model. In result, we identified four research topics, each of which concerns "Surgery", "Disease aggressiveness", "Survival analysis", and "Well-being of patients". With multinomial logistic regression, we found significant time trend, where "Surgery"-related topic was popular before 2000, topics regarding "Disease aggressiveness" and "Survival analysis" were frequently addressed in the 2000s, and "Survival analysis" and especially "Well-being of patients" have been pursued since 2010. The findings would serve as a reference guide for research directions. Future work may examine whether the recent change in research topics is observed in other diseases.

키워드

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Fig. 1. Data acquisition and data preprocessing

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Fig. 2. Number of topics indicated by four metrics. The metrics were standardized to range between 0 and 1.

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Fig. 3. Number of papers in each topic

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Fig. 4. The 95% confidence intervals for topic probability at each time period

Table 1. Topics and the top 10 words in each discovered by LDA analysis of abstracts

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Table 2. Results of multinomial logistic regression. The reference group is Topic 1(Surgery).

OHHGBW_2019_v10n2_75_t0002.png 이미지

Table 3. Main terminologies in titles and keywords for each topic

OHHGBW_2019_v10n2_75_t0003.png 이미지

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