Fig. 1 Overall process
Fig. 2 Perplexity by change of topic numbers
Fig. 3 Parameters in LDA function
Fig. 4 Word clouds for 5 periods
Table. 1 The number of collected news articles
Table. 2 The number of news articles by year
Table. 3 Results of topic analysis
References
- S. C. Shin, etc, Youth Problem and Protection, Seoul: Jungminsa, 2014.
- J. Y. Kim, Youth Problems. Seoul: Knowledge Community, 2017.
- J. W. Chun, Youth work practice : positive perspective, Seoul: Shinjeong, 2017.
- Y. H. Shim, "Changes in Youth Problems in Korea under the IMF Management System : With a Risk Society Perspective," Korean Journal of Youth Studies, vol. 5, no. 3, pp. 115-145, Mar. 1998.
- J. Kim, and S. Joo, "Analyzing the Change of Discourse about Adolescent Problems Based on the Foucault's Governmentality," Korea Journal of Counseling, vol. 18, no. 2, pp. 223-243, Feb. 2017. https://doi.org/10.15703/kjc.18.2.201704.223
- J. Silge, and D. Robinson, Text Mining with R: A Tidy Approach, Sebastopol, CA:O'Reilly Media, Inc., 2017.
- D. M. Jung, etc, "A Proposal of a Keyword Extraction System for Detecting Social Issues," Journal of Intelligent Information System, vol. 19, no. 3, pp. 1-23, Sept. 2013.
- J. Y. Lee, and Y. Bak, "Social Network Analysis of author's interest area in Journals about Computer," Journal of the Korea Institute of Information and Communication Engineering, vol. 20, no. 1, pp. 193-199, Jan. 2016. https://doi.org/10.6109/JKIICE.2016.20.1.193
- The Chosunilbo [Internet]. Available: http://www.chosun.com/.
- Korea Joongang Daily [Internet]. Available: https://joongang.joins.com/.
- The Dong-A Ilbo [Internet]. Available: http://www.donga.com/.
- R. Mitchell, Web Scraping with Python: Collecting Data from the Modern Web, 1st edition, Sebastopol, CA:O'Reilly Media, Inc., 2015.
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