• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.34 no.1
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• pp.33-42
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• 2016

In Korea, the address-point matching technique has been used to provide geocoding services. In fact, this technique brings the high positional accuracy. However, the quality of geocoding result can be limited, since it is significantly affected by data quality. Also, it cannot be used for the 3D address geocoding and the reverse geocoding. In order to alleviate issues, the paper has implemeted proposed geocoding methods, based on street-based addresses matching technique developed by US census bureau, for street-based addresses in Korea. Those proposed geocoding methods are illustrated in two ways; (1) street address-matching method, which of being used for not only 2D addresses representing a single building but also 3D addresses representing indoor space or underground building, and (2) reverse geocoding method, whichas converting a location point to a readable address. The result of street-based address geocoding shows 82.63% match rates, while the result of reverse geocoding shows 98.5% match rates within approximately 1.7(m) the average position error. According to the results, we could conclude that the proposed geocoding techniques enable to provide the LBS(Location Based Service). To develop the geocoding methods, the study has perfoermed by ignoring the parsing algorithms for address standardization as well as the several areas with unusual addresses, such as sub-urban areas or subordinate areas to the roads, etc. In the future, we are planning the improved geocoding methods for considering these cases.

• 한국공간정보시스템학회:학술대회논문집
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• 2003.11a
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• pp.114-117
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• 2003

이동통신망을 이용한 위치정보서비스는 사용자에게 그의 현재 지리적 위치에 근거한 서비스를 제공하는 것이다. 이 위치는 사용자가 들고 다니는 이동 전화기에 내장된 GPS 수신기나 통신이 일어난 지역을 관할하고 있는 통신 기지국의 지리적 위치를 통해 획득할 수 있다. 통신사에 의해 획득된 위치는 사용자에게 익숙하지 않은 십진수로 표시되는 좌표 값이다. 따라서 좌표 값을 사용자에게 친숙한 주소, 빌딩 이름 등으로 변환하는 과정을 거친 후 사용자에게 제공하여야 한다. 이러한 변환 과정에 유용하게 사용되는 것이 위치 유틸리티 서비스이다. 이것은 주소를 좌표로 변환하는 Geocoding 기능과 좌표를 주소로 변환하는 Reverse Geocoding 기능으로 구성되어 있다. 각각의 기능은 OpenLS에서 발표한 표준 사양을 구현하였으며, XML을 이용한 Web Service를 제공하여 상호운용성을 향상시켰다.

• Proceedings of the KSRS Conference
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• 2002.10a
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• pp.838-843
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• 2002

Recently, PDA and cellular phone with color LCD have been widely used in various fields by high efficiency and micro miniaturization technology. According to maturity of these mobile environments, user request about mobile application field is increased. Mobile applications provide various information which is concerned with user's position through cable and wireless transmission. This paper discusses the issues related to the mobile framework for integrated 4S data. The integrated 4S data mean spatial data fusion on GIS, SIIS, ITS, and GNSS. The mobile framework provides not only spatial data but also location services such as reverse geocoding, directory service, etc. It consists of client subsystem, service provider, and data provider.

• Journal of Information Technology Services
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• v.15 no.3
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• pp.211-221
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• 2016

The human spatial mobility information is in high demand in various businesses; however, there are only few studies on human mobility because spatio-temporal data is insufficient and difficult to collect. Now with the spread of smartphones and the advent of social networking services, the spatio-temporal data began to occur on a large scale, and the data is available to the public. In this work, we compared the movement behavior of residents and tourists by using geo-tagged tweets which contain location information. We chose Seoul to be the target area for analysis. Various creative concepts and analytical methods are used: grid map concept, cells visited concept, reverse geocoding concept, average activity index, spatial mobility index, and determination of residents and visitors based on the number of days in residence. Conducting a series of analysis, we found significant differences of the movement behavior between local residents and tourists. We also discovered differences in visiting activity according to residential countries and used applications. We expect that findings of this research can provide useful information on tourist development and urban development.