• Spatial Information Research
• /
• v.23 no.2
• /
• pp.69-81
• /
• 2015

If one can infer the residential area of SNS users by analyzing the SNS big data, it can be an alternative by replacing the spatial big data researches which result from the location sparsity and ecological error. In this study, we developed the way of utilizing the daily life activity pattern, which can be found from timeline data of tweet users, to infer the residential areas of tweet users. We recognized the daily life activity pattern of tweet users from user's movement pattern and the regional cognition words that users text in tweet. The models based on user's movement and text are named as the daily movement pattern model and the daily activity field model, respectively. And then we selected the variables which are going to be utilized in each model. We defined the dependent variables as 0, if the residential areas that users tweet mainly are their home location(HL) and as 1, vice versa. According to our results, performed by the discriminant analysis, the hit ratio of the two models was 67.5%, 57.5% respectively. We tested both models by using the timeline data of the stress-related tweets. As a result, we inferred the residential areas of 5,301 users out of 48,235 users and could obtain 9,606 stress-related tweets with residential area. The results shows about 44 times increase by comparing to the geo-tagged tweets counts. We think that the methodology we have used in this study can be used not only to secure more location data in the study of SNS big data, but also to link the SNS big data with regional statistics in order to analyze the regional phenomenon.

• Culinary science and hospitality research
• /
• v.16 no.5
• /
• pp.1-13
• /
• 2010

This study analyzes the satisfaction degree for menu quality of the regional cuisine in Gangwon province. The result of verifying hypotheses is as follows. For the satisfaction with the quality in direct services, it showed no similarity by education levels, locations, and income levels; however, there was a significant difference in satisfaction by gender, locations, and occupation. Males evaluated satisfaction with direct services higher than females, and Chun-Cheon and Sok-Cho residents felt more satisfied than Gang-Reung residents. By occupation, students and self-employed ones showed more satisfaction. For the satisfaction with indirect services, there was a significant difference in 1% of the similarity range by gender, locations, and occupation while no difference was shown in the other variables. Compared with the satisfaction with direct services, satisfaction with indirect services was low, which indicated the necessity of improving indirect services. Indirect services showed the same results of satisfaction by gender, locations, occupation as those of direct services. In particular, it showed high satisfaction among students.

• Korean Journal of Heritage: History & Science
• /
• v.37
• /
• pp.309-326
• /
• 2004

There are some methods such as fatty acid analysis and microscope analysis of parasite egg and pollen and genetic analysis of ancient bacteria from ancient soil. The fatty acid analysis can examine whether some materials is human feces or animals. This is important thing to reconstruct ancient toilet culture pattern. The methods using TLC and GC-MS as organic chemistry is able to confirm ancient diet life style and nutritive conditions. The microscope analysis of ancient soil is able to confirm ancient parasite egg and pollen. It is possible to analogize ancient human diseases from this analysis. Also, genetic analysis is able to confirm genetic diversity and variation pattern of ancient organisms in archeological soil. Most of all, it is convinced of carrying through genetic preservation of exterminated ancient organisms. If archeological soils should be analysed through the natural scientific methods such as organic chemistry, soil science, microbiology, molecular biology, and genetics, this is helpful for us to understand and interpretation past historic event. And it is expected to perform an major role for understanding origin of ancient human and life style.