최근 머신러닝은 빅데이터에 대한 분석방법으로서 학습을 통한 지능화된 문제해결 방안으로서 관심이 증가하고 있다. 본 논문은 LBSN 데이터와 머신러닝 방식을 이용하여 토지이용현황을 파악하는 분석을 시도하였다. 도시계획에 있어서 토지이용현황의 파악은 직접적인 현장 조사에 의존해 왔다. 최근 스마트폰 사용자가 증가하면서 등장하고 있는 위치기반 소셜미디어의 자료들 은 토지이용의 상황을 반영하는 빅데이터로서, 머신러닝 방법론은 이들에 대한 자동화된 분석을 할 수 있게 한다. 본 연구에서는 LBSN 자료와 머신러닝 기법을 이용하여 토지이용을 예측하는 모델을 개발하여 실제 토지이용현황 자료와의 비교분석을 수행하였다. 이러한 분석을 통해 LBSN자료를 이용한 토지이용현황의 자동화된 분석 방안에 대해 연구하였다.

The purpose of this study is to examine location-based games from the post-human point of view, which is a combination of human and technology in digital games, devoid of media-oriented discussion of mobile media. In a location based game, there is a hybrid play aspect of topological character and player-driven self-generated play in a space where reality and virtual overlap. This is based on post-human characteristics of the player's spatial-temporal replication through the ubiquity of mobile technology. Through this, digital game has meaning as a game action that can be combined with various actors rather than a material object.

Compared to the early 2000s, the number of tourists in Korea has increased significantly. Approximately 40 million tourists visit Korea each year. In line with this trend, various technologies for developing tourism content have reached a very high level. Therefore, adding experience-oriented AR (Augmented Reality) game based on LBS (Location-Based System) to existing tourist contents will create a new tourism content platform that can give new experience to tourists . This paper proposes a tourism contents platform based on Suwon Hwaseong Fortress which can give such a new experience.

본 연구에서는 국내 위치기반소셜 네트워크(LBSN)의 공간분포 특징을 분석하였다. LBSN에서 발생하는 정보의 특징은 사용자들이 작성한 콘텐츠가 지역과 밀접한 관계를 갖는 내용이기에 해당 지역이 갖는 특징들을 반영하고 있다는 점이다. 본 연구에서는 가장 대표적인 서비스인 포스퀘어를 사례로 베뉴와 팁에 관한 정보를 수집하여 데이터의 지역 간의 특징 및 차이를 분석하였다. LBSN자료의 정량적인 특징인 베뉴 및 팁의 수와 함께 정성적인 특징인 베뉴의 범주, 팁의 콘텐츠에 대한 정성적인 분석을 통해 지역별로 나타나는 콘텐츠의 특징을 분석하였다. 분석결과 도시지역을 대표하는 서울특별시와 관광지역인 제주도에 있어, 베뉴의 범주와 팁 텍스트의 질적인 특징들을 확인할 수 있었다.

PURPOSES: In this paper, the effectiveness of speed-maintained standardization in road geometry on environmental impact at a downward slope location, based on greenhouse gas (GHG) emission indicators, was studied. Specifically, the aim of this study was to ascertain whether speed-maintained standardization resulted in decreased CO2 emissions as well as noise pollution, due to reduced vehicle speeds. METHODS : In this study, speed-maintained standardization in road geometry was proposed as a means to reduce vehicle speeds, with a view to reducing CO2 emissions and noise pollution. This technique was applied at a downward slope location. The vehicle speeds, CO2 emissions, and noise levels before and after application of speed-maintained standardization were compared. RESULTS: It was found that speed-maintained standardization was effective as a means to reduce speed, as well as CO2 emissions and noise pollution. By applying speed-maintained standardization, it was confirmed that vehicle speeds were reduced consistently. As a result, CO2 emissions and noise levels were decreased by 9% and 11%, respectively. CONCLUSIONS : This study confirmed that speed-maintained standardization in road geometry is effective in reducing vehicle speeds, CO2 emissions, and noise levels. Moreover, there is further scope for the application of this method in the design of roads in urban and rural areas, as well as in the design of highways.

최근 고기능성 제품에 대한 수요가 증가함에 따라 ICT 기능과의 융합을 통한 스마트 의류는 일상생활 분야로 확대되고 있다. 그 중 하나로, 발열 텍스타일 및 제어 모듈을 통해 의복 내 발열기능을 조절하는 스마트 의류에 대한 관심이 높아지고 있으며, 발열 기능을 갖는 스마트 의류의 시장 전망이 높아지고 있으나, 발열 패드 부착위 치에 따른 발열 기능의 효용성 및 온열감에 대한 연구는 부족한 실정이다. 본 연구에서는 발열 패드의 위치에 따 른 피부온의 변화와 온열감에 대한 실증적 연구를 통하여 발열기능의 스마트 의류 개발을 위한 최적의 발열 위 치를 도출하고자 하였다. 이를 위하여 20대 표준체형의 남성 10명을 피험자로 선정하였으며, 영하 5 ℃의 인공기후실에서 20분의 안정기, 20분의 처치기, 40분의 회복기를 통해 11군데에서의 피부온, 직장온과 주관적 온열감을 측정, 평가하였다. 최종적으로, 발열패드를 위한 최적의 위치를 도출하고 제시하였다.

Historical Experience Program is a certain type of a field trip for elementary and middle school students, which includes visiting a historical place and having various outdoor activities related to the historical events that actually happend in the area. Usually the students make a group to participate, but the education is only done with the printed handouts and the guidance teacher's verbal explanation. In this research, we would like to make use of both location-based system and gamification theories to advance the educational form. Each students will be given smart devices to perform the tasks that are conducted by gamifying the historical information and materials. Location-based system will be guiding them to find the missions and clues around the area. The guidance teacher will be also using a smart device to figure out each student's location and how well they are performing. We've also run the actual field test, and found out that it was a very effective method for Historical Experience Programs. Students were very motivated by cooperting and competing with other students on gamified educational material, and had been very ammused by having outdoor activities using location-based system, and it lead to a significantly effective education.

The location-based game(LBG) is a major game which is using temporal-spatial model as a game space like a real world in mobile environment. A gamer have to fight with game-enemies who have low level power for their victory. Then conventional researches have studied finding lower level game objects using skyline query in spatial game. However, since the researches which are using traditional skyline (TS) just query in one quadrant, the surrounding objects of a gamer can not be queried. This paper proposed a safe-route search scheme that a gamer searches the surrounding objects and safe-routes to level up in his/her power using Global Skyline query. In simulation, we evaluate two safe-route that a game object’s game-level and distance from gamer. The result shows that a gamer has high game-level after game-level-oriented evaluation. That is, the proposed scheme could be an advanced scheme to level up a gamer’s power in location-based game.

21C, As Increase the risk of natural disasters, especially, In Korea, Busan Haundae Coast is important tsunami shelter location selection for safety. This Study attempt to site analysis for tsunami shelter of haundae coastal zone. GIS is very useful tool as we search location characteristics. The Purpose of This Study, First, Analysis of the location for using the Tsunami Shelter location Standards Act of Korea. Second, As using this study to U.S. Oregon State and Japan's location Standards Act, seeking a New Tsunami Shelter Position and places, and performed to compare with korea. In Conclusion, All Issue of Tsunami shelter location on the basis of an analysis leads to the political implications.

최근 들어 무선 인터넷이나 모바일 서비스의 수요가 증가함에 따라, 대학들 역시 모바일 캠퍼스 구축을 위해 많은 노력을 기울이고 있다. 대부분의 모바일 캠퍼스 구축은 근거리 무선랜(WLAN)인 와이파이 기술과 무선 AP(access point) 시설에 기반하고 있지만, 체계적인 공간 계획 없는 AP의 설치는 특정 지역에 대한 과밀화를 초래해 오히려 접속 장애나 통신의 비효율성을 가져올 수 있다. 또한 서비스의 제한된 지리적 커버리지는 실제적인 유비쿼터스 캠퍼스를 실현하는데 많은 기술적, 경제적 어려움을 초래할 수 있다. 이러한 맥락에서 본 연구는 최근 많은 무선랜 시설을 증설한 전남대학교 캠퍼스를 대상으로 현행 와이파이 무선 인프라 시설의 분포 특성과 서비스 커버리지를 분석하고 있으며, 서비스가 제공되지 못하는 와이파이 음영지대를 최소의 비용으로 모두 커버할 수 있는 최적 AP 입지 대안들을 제시하고 있다. 본 연구에서 도출된 분석 결과들은 와이파이 기반의 U-캠퍼스를 구축하고자 하는 많은 대학들에 유용한 가이드라인을 제공할 수 있을 것으로 기대된다.

최근 GPS와 Wi-Fi가 내장된 스마트폰의 보급으로 이를 이용한 위치기반 서비스 (Location-based Service)가 발전하고 있다. 하지만 위치기반 서비스들의 오차 범위는 3∼4m 내외로 크기 때문에 사용자들은 더 정확한 위치를 제공하기를 바라고 있다. 본 논문에서 위치기반 서비스의 핵심기능을 담당하는 측위기술 중 흔히 사용되고 있는 삼각측량법을 활용하여 핑거프린트 방법의 측위오차를 줄일 수 있는 방안을 연구하였 고 프로그램으로 구현한 후 테스트를 실시하였다. 프로그램은 Labview2010으로 구현 하였고, 각각의 알고리즘을 모듈화하여 필터링 적용 전 후 및 개선효과를 비교하기 쉽 도록 구성하였다. 실내 테스트는 인하대학교의 강의실에서 실시하였고 실외 테스트는 인하대학교 운동장에서 실시하였다. 테스트 결과 실내의 경우 본 논문에서 제시하는 필터링 방법을 적용하기 전의 오차가 1.02미터에서 0.83미터로 감소하였고 실외에서는 0.74미터에서 0.54미터로 오차가 감소하였다.

Location-Based Service(LBS) is a service that provides a variety of convenience in life using location information that can be obtained by mobile communication network or satellite signal. In order to provide LBS precisely and efficiently, we have to need technologies such as location determination technology, platform technology and server technology first. In this study, we studied on how we can reduce the error on location determination of objects such people and things. Fingerprint location determination method was applied to this study because it can be used at current wireless communication infrastructure and less influenced by a variety of noisy environment than other location determination methods. We used the time of arrival(ToA) method in fingerprint location determination method. In order to confirm the performance of suggested method, we developed location determination test program with LAbVIEW 2010 and performed the test. According to indoor test results, the suggested method reduced the distance error by 24%, 34% and 19% respectively at indoor environment compared with deterministic kWNN and Rice Gaussian fingerprint methods.

이 연구는 최근 확대되는 시장규모에 비하여 창의적인 콘텐츠 개발이 미흡한 한국의 지역 기반 엔터테인먼트분야(LBE)의 실험적인 게임 프로토타입(Prototype)의 설계 및 구현에 대한 논문이다. 먼저 LBE분야 특징으로, 특수한 목적의 장소가 제공하는 체험공간을 중심으로 플레이어의 새로운 서사 경험 창출에 초점을 맞추어 설계된 “스토리텔링 게임” 플랫폼을 제안하고 플레이어의 서사 경험을 분석하였다. 또한 실험결과를 바탕으로 LBE분야의 시공간성이 플레이어의 서사적 경험에 미치는 영향에 대해 고찰하였다. 특히, 오픈월드 시스템과 게임마스터 그리고 즉흥연극 무대장치를 중심으로 스토리의 우연성과 필연성을 동시에 경험 가능한 게임을 모델로 검토하고 그 가능성을 논의하였다.

본 논문은 위치기반 게임(LBG, location-based game)에서 플레이어(player)와 주변 사물의 위치를 신속하게 탐색할 수 있는 공간객체 압축기법인 SBR(Shrinking of Bounding Rectangle based on grid)을 제안한다. 이 기법은 공간 객체의 좌표를 압축하여 위치기반 서버가 플레이어들의 변경된 위치나 주변 장애물에 대한 정보를 신속하게 탐색하고 플레이어에게 빠르게 전송할 수 있도록 한다. 제안 기법은 기존 기법의 단점을 극복하기 위해 게임영역을 일정한 크기의 그리드(grid)로 분할한 후 공간 객체의 좌표를 그리드 크기로 축소함으로써 객체 사이의 중첩이 발생되지 않도록 하였다. 제안기법으로 공간 데이터를 압축하여 시뮬레이션 한 결과 노드접근 횟수가 기존의 압축기법보다 단축되었다.

In this paper, the uAPSS(u-APartment Service System) that is based on location-aware technology is designed and implemented for a luxury apartment. On the real luxury apartment the developed system has been employed and tested to provide convenient and secure living for residents. It provides services such as emergency call, intelligent elevator operation, and hands-free door access based on the location of the residents with personal device as called smart tag. It can also be applied to other service areas such as the location-aware u-Service for hospitals, high-rising complex buildings, silver towns, etc.

"Domestic delivery service" is defined the service to deliver goods or packages from point of senders to point of receiver. With the characteristics of door to door, it is must a service provider should know the exact location of destination assuring best utilization of moving path. Generally, location information consist of postal code and address only, which result in difficulties to identify the precise location of destination. It is relatively less correlated between the information that address refers and practical location in Korea address system. For example, the next door to house number 100 is not always house number 101. Therefore, a delivery man additionally uses a paper map or a GPS navigation which carry extra job to input every code of location to the device in order to know precise location. It is also very inconvenient that every delivery man identify the location that address information refers and make a personal decision of the optimum moving path dropping each destination without calculating provisioning process of whole delivery path. As explained above, it is inefficient to find information delivery service required and to generate the optimum path. In results, these difficulties bring in delay of service and increase of cost. In this point, the contents of the thesis suggest a GPS navigation system easy to obtain accuracy of delivery information which enables to automate optimum moving path based on RFID which contains location information.

An ambrosia beetle, Platypus koryoensis, is known as a major vector of Korean oak wilt disease (KOW) to Mongolian oak and it is considered as the one of the major threat to forest ecosystem health. This study was conducted to assess damage on Mongolian oak inflicted by the ambrosia beetle on the basis of entry hole density and location within the trunk. Two hundred forty Momgolian oak trees from Mt. Uam (Gyonggi-Do, Korea) and 60 from Mt. Gyebang (Gangwon-Do, Korea) were randomly selected. Initially, the damage degree on an individual tree and the diameter at breast height (DBH) were measured, and followed by the measurement of entry hole density per 148 X 210 mm2 on lower trunk (above the surface of the earth) and upper (100 cm above the surface) on each upslope and downslope. The damage degrees were divided into three classes: Ⅰ indicating healthy tree, Ⅱ tree damaged by the ambrosia beetles and Ⅲ dead tree by the KOW. As the damage class of the Mongolian oaks increased, the number of the entry holes increased regardless of locations of entry holes. The density of entry hole lower trunk was higher than that in upper trunk, showing that the ambrosia beetle preferred to attack the lower trunk on downslope. In addition, the results showed a tendency that the average DBH of the oak trees increased as the damage class increased from Ⅰ to Ⅲ. This suggests that the ambrosia beetle prefers to attack older trees. The entry hole densities on each lower and upper trunk on downslope were principal components to assess the damage degrees of the Mongolian oak.

In continuous review inventory model, (Q, r) system, order quantity(Q) and reorder point(r) should be determined to calculate inventory-related cost that consists of setup, holding, and penalty costs. The procedure to obtain the exact value of Q and r is