Comparison and Analysis of Dieting Practices Using Big Data from 2010 and 2015

Eun-Jin Jung; Un-Jae Chang

doi:10.5720/kjcn.2018.23.2.128

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Jung and Chang: Comparison and Analysis of Dieting Practices Using Big Data from 2010 and 2015

Research Article

Korean Journal of Community Nutrition 2018; 23(2): 128-136.

Published online: 30 April 2018

DOI: https://doi.org/10.5720/kjcn.2018.23.2.128

Comparison and Analysis of Dieting Practices Using Big Data from 2010 and 2015

Eun-Jin Jung, Un-Jae Chang

Department of Food & Nutrition, DongDuk Women's University, Seoul, Korea.

Corresponding author: Un-Jae Chang. Department of Food and Nutrition Dongduk Women's University, 23-1 Wolgok-dong, Seongbuk-gu, Seoul 02748, Korea. Tel: (02) 940-4464, Fax: (02) 940-4610, uj@dongduk.ac.kr

Received 9 March 2018 Revised 11 April 2018 Accepted 11 April 2018

The Korean Society of Community Nutrition

(open-access):

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives

The purpose of this study was to compare and analyse dieting practices and tendencies in 2010 and 2015 using big data.

Methods

Keywords related to diet were collected from the portal site Naver from January 1, 2010 until December 31, 2010 for 2010 data and from January 1, 2015 until December 31, 2015 for 2015 data. Collected data were analyzed by simple frequency analysis, N-gram analysis, keyword network analysis, and seasonality analysis.

Results

The results show that exercise had the highest frequency in simple frequency analysis in both years. However, weight reduction in 2010 and diet menu in 2015 appeared most frequently in N-gram analysis. In addition, keyword network analysis was categorized into three groups in 2010 (diet group, exercise group, and commercial weight control group) and four groups in 2015 (diet group, exercise group, commercial program for weight control group, and commercial food for weight control group). Analysis of seasonality showed that subjects' interests in diets increased steadily from February to July, although subjects were most interested in diets in July in both years.

Conclusions

In this study, the number of data in 2015 steadily increased compared with 2010, and diet grouping could be further subdivided. In addition, it can be confirmed that a similar pattern appeared over a one-year cycle in 2010 and 2015. Therefore, dietary method is reflected in society, and it changes according to trends.

Keywords: big data, tendency, Naver, diet menu, exercise, commercial diet

Figures and Tables

Fig. 1

Keyword network analysis related to diet in 2010

Fig. 2

Keyword network analysis related to diet in 2015

Fig. 3

Monthly frequency of keyword related to diet in 2010 and 2015

Table 1

Frequency of keyword related to diet by simple frequency analysis in 2010 and 2015

Table 2

Frequency of keyword related to diet by N-gram analysis in 2010 and 2015

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ORCID iDs: Un-Jae Chang
https://orcid.org/0000-0002-9471-3380
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