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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Korea Spatial Information Society
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Journal DOI :
The Korean Association of Geographic Inforamtion Studies
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Volume & Issues
Volume 23, Issue 6 - Dec 2015
Volume 23, Issue 5 - Oct 2015
Volume 23, Issue 4 - Aug 2015
Volume 23, Issue 3 - Jun 2015
Volume 23, Issue 2 - Apr 2015
Volume 23, Issue 1 - Feb 2015
Selecting the target year
Indoor Network Map Matching by Hidden Markov Model
Kim, Tae Hoon ; Li, Ki-Joune ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 1~10
DOI : 10.12672/ksis.2015.23.3.001
Due to recent improvement of various sensor technologies, indoor positioning becomes available. However, Indoor positioning technologies by Wi-Fi radio map and acceleration sensor and digital campus still have a certain level of errors and a number of researches have been done to increase the positioning accuracy of the indoor positioning. If we could provide a room level accuracy, indoor location based services with current indoor positioning methods such as Wi-Fi radio map and acceleration sensors would be possible. In this paper, we propose an indoor map matching method to provide a room level accuracy based on hidden markov model.
A Study on the Age Distribution Factors of One Person Household in Seoul using Multiple Regression Analysis
Lee, SunHee ; Yoon, DongHyeun ; Koh, JuneHwan ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 11~21
DOI : 10.12672/ksis.2015.23.3.011
While the number of total population in Seoul has been on the constant decline for the last few years, the number of household has increased due to the rising tendency of the smaller households. In 2010, the small households in the metropolitan areas accounted for 44% of the entire households, and Statistics Korea has reported that one person household, which will take up more than 30% of the whole household, will have been the most common type of household by 2020. This reason of rise will be differently shown according to age like the preferred housing type or surrounding environments, this research is suggest to research hypothesis that distinction of age leads to the spatial distribution of one person household. Therefore, this research is to exercise a multiple regression analysis targeting on the facilities, which become the spatial distribution factor of one person household, with the independent variable gained from the concluded area calculated with the area ratio of the spatial unit followed by the service area analysis based on network. The spatial unit is the census output of Seoul, and based on this the interaction between the number of one person household according to age and the factors of its distribution. Also, the spatial regions - downtown, northeast, southeast, northwest, southwest - are designed as dummy variables and the results of each region are found out. As a result, the spatial regions occupied according to age are found to be varied - people in their 20s prefer housings near the college, 30s lease or the monthly rental housings, 40s the monthly rental housings, and over 60s the housing with the floor area of less than
. Likewise, one person household has different types of housing environments preferred according to age, and thus a housing policy concerning this will have to be suggested.
An Estimation of the Spatial Development Patterns based on the Characteristic City Indicators - The Case of Gangnam District -
Jang, Seongman ; Yi, Changhyo ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 23~33
DOI : 10.12672/ksis.2015.23.3.023
Most data used for urban planning is aggregated by administrative district. Thus, a fundamental limit to analysing the changes of micro-geographical units exists. The object of this study is to estimate spatial development patterns based on characteristic city indicators. Gangnam, an area that was analysed, was divided into hexagon polygons. The development density and characteristic city indicators were input into each polygon. Moreover, this study analysed the influence of characteristic city indicators on development density using multinomial regression analysis. According to the results, distance between a polygon and both a road and a bus stop led to a decrease of development density in the polygon. However, distance between a polygon and a river led to an increase of development intensity. The method of this analysis and the results can be used to disaggregate the zonal data in the urban planing area.
Study on U-City Service Issue and Trends based Text Mining - Using the Network Analysis and Information Measure Method -
Jeong, Dawoon ; Yoo, Jisong ; Yi, Mi-Sook ; Shin, Dong Bin ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 35~44
DOI : 10.12672/ksis.2015.23.3.035
Recently, the government aims to discover and provide services to citizens on the development strategy for activating the U-City. So, this study aims to offer a service discovery direction by analyzing the service issues and trends. The target is newspaper article about U-City Service from 2009 to 2014. Prepared 723 newspaper article for analysis. Next step is frequency analysis of keyword and used that result for Network analysis and measure of information. Network analysis can show result through "Degree Centrality", "Betweenness Centrality" and "Closeness Centrality". As a result, "Information", "IT", "Environment", "Technology", "Center" is higher than another. These 5 keywords are important factors for driving the U-City the past six years. Information measurement results, Already U-City were put an emphasis on building the infrastructure and able to identify a trend that provided the center of the public service. Those Service field are "Tour(2009)", "Crime prevention and Disaster Prevention(2010)", "Facility Management(2011)", "administration(2012)" and "Facility Management(2013, 2014)". Result of this study found implications what on citizen participation. So, services field on the existing infrastructure should be discovered and provided. Finally, this study can expected to be a reference in the local government planning for U-City.
Service Status Analysis About the Spatial Information Open Platform based on the Analysis of Web Server Log and System Log
Jang, Han Sol ; Hong, Seong Hun ; Kim, Min Soo ; Jang, In Sung ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 45~54
DOI : 10.12672/ksis.2015.23.3.045
Since the V-World, the Spatial Information Open Platform service, has started in 2012, a lot of people have increased explosively every year with their interest. It is necessary to know the specific service status in order to serve as indicators of the improvement of user's environment and the service to be added in the future based on the user's increasing need. However, there is difficulty to figure out more specific service status, such as the usage of hardware resources for 2D / 3D / Portal services and the actual user usage patterns, because the current system does not have the real-time monitoring system. Therefore, in this paper, through the analysis of the usage of system resources for 2D / 3D / Portal services based on web server log and the usage of hardware resources such as CPU, Memory based on system log, we analyze the usage of service in 2015 and compare with the results of the 2014, to present problems of the current system and the solutions about the problems.
Research about the Methods to Improve the U-City Platform through High-Capacity Information Processing Technologies
Hong, Jaejoo ; Lee, Byungno ; Lee, Junhyeong ; Won, Donghyun ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 55~65
DOI : 10.12672/ksis.2015.23.3.055
It was necessary for us to establish a U-City Integrated platform to handle information and to operate the processes in order to solve various social problems in the modern cities and environment. As time has passed, we have confronted to difficulty in handling massive data with limited storage and computing environment and in not satisfying all the new requirements and on time information from the publics. The bigger the cost of the operation of the platform got, the more doubts to keep and invest more to upgrade it arose. Here, we investigated the limitations of the U-city platforms and analyzed the additional requirements and each function of the platform. In order to meet the requirement, we applied new technologies to deal with massive data and suggested the infrastructure of computing environment. We will be expecting the cost decreasing effects and the benefit increasing effects from the enhancement of U-City platform.
A Study on Construction Plan of the Statistics for National Green House Gas Inventories(LULUCF Sector)
Yu, Seon Cheol ; Ahn, Wook ; Ok, Jin A ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 67~77
DOI : 10.12672/ksis.2015.23.3.067
This Study aimed to construction the plan of the statistics for national greenhouse gas inventories of international standards. Currently, the statistics of the greenhouse gas inventories of South Korea, has a problem that is not able to build the changed information. In previous studies, it has been limited to the construction of the information within each category. In order to solve these problems, targeting Gyeonggi province, we analyzed the land use change by utilizing the various information such as satellite images, KLIS, UPIS. As a result, we suggested the following implementation, classification system of LULUCF category, improvement of accuracy by utilizing satellite images of high resolution, additional research for methodology. Based on these contents, we suggested the construction plan of the statistics for national greenhouse gas inventories(LULUCF sector). Frist, it is necessary to construct of land use change informations for the past 20 years, Then, it need to create the matrix of land use change by utilizing satellite images and various land information systems.
Estimation of Design Wind Speed for Building Using Spatial Information Analysis
Lee, Seong-Yun ; Jo, Hyun-Jae ; Lee, Hyun-Ki ; Choi, Se-Hyu ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 79~89
DOI : 10.12672/ksis.2015.23.3.079
Once the building is higher than certain size, the wind effect plays very important role in structure design. Moreover, this is more important in Korea because dangerous phenomena like typhoons are common. Rational wind resistant design is being magnified considering the global flow and climate changes. This research presented the estimation method of design wind load using spatial information analysis based on 1:5,000 digital map and performed comparative analysis with actual application cases. The wind velocity pressure exposure coefficient and topographic coefficient turned out to be more quantitative and rational when calculated through the proposed method. The time and cost are comparatively low when compared with traditional method which contribute to the economic and rational wind resistant design.
A High-speed Automatic Mapping System Based on a Multi-sensor Micro UAV System
Jeon, Euiik ; Choi, Kyoungah ; Lee, Impyeong ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 91~100
DOI : 10.12672/ksis.2015.23.3.091
We developed a micro UAV based rapid mapping system that provides geospatial information of target areas in a rapid and automatic way. Users can operate the system easily although they are inexperienced in UAV operation and photogrammetric processes. For the aerial data acquisition, we constructed a micro UAV system mounted with a digital camera, a GPS/IMU, and a control board for the sensor integration and synchronization. We also developed a flight planning software and data processing software for the generation of geo-spatial information. The processing software operates automatically with a high speed to perform data quality control, image matching, georeferencing, and orthoimage generation. With the system, we have generated individual ortho-images within 30 minutes from 57 images of 3cm resolution acquired from a target area of
A Study on the Spatial Data Infrastructure Development Methods in Abu Dhabi through Gap Analyses on Spatial Information between the Emirate of Abu Dhabi and the Republic of Korea
Kim, Kirl ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 101~111
DOI : 10.12672/ksis.2015.23.3.101
The Emirate of Abu Dhabi is swiftly rising into a newly industrialized country by achieving economic prosperity among the Islamic cultural regions of Middle East and North Africa(MENA). Abu Dhabi Emirate is performing the conversion from oil economy to non-oil economy and the sustainable urban development policy. However, there are various social and environmental problems in Abu Dhabi. In order to solve the urban problems caused by the rapid economic growth and the changes in society and environment, Abu Dhabi is recognizing the importance of spatial information and triggering the establishment of spatial information. Spatial information is regarded as a basic infrastructure for urban construction and enlarged as a blue ocean market in Abu Dhabi. However, the base of spatial data infrastructure in Abu Dhabi is not well managed in comparison to that of Korea. Especially, Abu Dhabi has some characteristics that it depends on foreign multinational companies and it does not have its own systemic organization and law system. To advance into Abu Dhabi spatial data market under-controlled by global vendors, it is necessary to identify the advantage and disadvantage on spatial data infrastructure of Abu Dhabi and required to establish the advance methods into niche markets by considering priority order of spatial information. Thus, this study aims to analyze the gap of spatial information between Abu Dhabi and Korea and suggest the short and long term development methods for spatial data infrastructure of Abu Dhabi. The results of gap analyses will be the milestone for Korean companies' advance into MENA.
A Study of Subspacing Strategy for Service Applications in Indoor Space
Kang, Hye Young ; Jung, Hyo-jin ; Lee, Jiyeong ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 113~122
DOI : 10.12672/ksis.2015.23.3.113
Recently, according to developing advanced construction technologies, buildings has been enlarged such as high-rise buildings or complex buildings associated with underground facilities. The number of indoor activity population has increased very quickly. Because of that, technical requirements for Indoor location based service (Indoor LBS) also have been increased. Although indoor networks have to be constructed for efficient LBSs in indoor space based on OGC IndoorGML, it is not suitable for large and complex space to apply the simple network structure to constructing indoor navigation networks. The indoor navigation network has to be constructed according to logical, physical, and functional constraints for indoor space. In order to do that, subspacing methods are required to partition large and complex indoor space into proper size of subspace. In this paper, we proposed the basic requirements of subspacing in indoor space for creating efficient indoor network, as well the work process of subspacing in indoor space.
A Preliminary Study for Developing an Authoring Tool for Field-Experience Learning using Mobile Device
Kang, Young Ok ; Cho, Na Hye ;
Journal of Korea Spatial Information Society, volume 23, issue 3, 2015, Pages 123~132
DOI : 10.12672/ksis.2015.23.3.123
Recently both the importance and the interests of field-experience learning have kept increasing since the Education of Ministry encourages students to take a field-experience learning with the self-driven and creative education as the main issue in the 7th revised education curriculum in 2009. As the importance of field-experience learning goes up continuously, not only the release of its related mobile applications is increasing, but also a variety of researches for supporting the field-experience learning are ongoing. In this research we perform two things. First, we define the basic concept of authoring tool for which support the field-experience learning based on its characteristics and user requirements analysis. We confirmed that the authoring tool for the field-experience learning has to 1) support all activities that happen in pre-field, field-experience and post-field phases, 2) be possible to write the location-based field work, 3) have the authoring function which reflects the characteristics of curriculum such as history, science and geography, etc. that the field learning can be realized, 4) be designed as the structure that the results of inquiring activity after the field experience activity can be reused. Second, we create a conceptual design after confirming the authoring tool.