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PROCEEDINGS

FOSS4G PROCEEDINGS ver2

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Figure 16. Spatial call activity pattern of Itaewon displayed on a map with QGIS<br />

4.6 Hongik University<br />

Figure 17. The number of foreign tourists in Itaewon<br />

sorted by country code and time of the day<br />

Variousnationalities of cellular phone subscribers around Hongik University are notable.<br />

Its shopping district and nightlife establishments contribute to mild differences in call traffic<br />

from 10AM to 12AM.<br />

Figure 18. Spatial call activity pattern of Hongik University<br />

displayed on a map with QGIS<br />

Analysis of Spatial Density Utilizing the Big Data of Floating Population of Seoul City<br />

247

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