• 한국공간정보시스템학회 논문지
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• 제6권2호
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• pp.39-49
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• 2004

이동통신 환경의 분산 응용에서는 사용자나 단말기의 위치 이동을 파악하여 서비스를 지속할 수 있는 모바일 기술이 요구된다. 이 문제를 해결하기 위해 상황 인식 미들웨어를 이용해 모바일 네트워크 상에서 사용자 혹은 사용자 디바이스의 CPU속도, 메모리 그리고 가용배터리의 변화를 적절히 지원하기 위한 연구가 많이 진행되고 있다. 여기에는 사용자와 디바이스에 대한 프로파일, 상황의 메타데이터가 필수적이다. 본 논문에서는 상황인식의 동적 반영을 지원하는 미들웨어 서비스에 필요한 메타서버를 모델링하고 구축했다. 메타데이터는 프로파일, 정책, 사용자 선호도로 구성되며, 메타 서버는 미들웨어의 요청에 따라 서비스 가능한가를 판별 후, 결과를 돌려준다. 멀티미디어 스트림을 제공하는 이동동신 환경에서 사용자나 통신 단말기의 상황이 변동되는 시나리오에 적용해 보았다.

• 한국실내디자인학회논문집
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• 제20권6호
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• pp.88-96
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• 2011

In contemporary urban space, the identify is absent because of the object-oriented plans that ignore the context of urban space, and the ignorance of the regional characteristics and the historicity of places. Due to this reason, urban space lost its unique characteristics and becomes a mismatch with its surroundings. To solve these problems, the ideological trend of post-modernism emerged and new spatial paradigm rose based on the contextual concept to go with this trend. This contextual concept should be considered more importantly in the public space with discontinuous many and unspecified behavioral patterns. The components of space do not exist independently with individual identity. They should be considered based on a holistic view formed by the relations among elements and the establishment of those relations, and through this, correct identity can be established. Thus, this paper aims to analyze the context of spatial components through new contextual views on public spaces and study the expressional characteristics unveiled between these relations.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.337-340
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• 2005

Context-awareness techniques in ubiquitous computing environment provide various services to users who need to get information via the analysis of collected information from sensors in a spatial area. Context-awareness has been increased in ubiquitous computing and is applied to many different applications such as disaster management system, intelligent robot system, transportation management system, shopping management system, and digital home service. Many researches have recently focused on services that provide the appropriate information, which are collected from Internet by different kinds of sensors, to users according to context of their surrounding environment. In this paper, we propose an abstraction model to manage the large-scale contextual information and their metadata which are collected from different kinds of in-situ sensors in a spatial area and are presented them on the web. This model is composed of the modules expressing functional elements of sensors using sensorML(Sensor Model Language) based on XML language and the modules managing contextual information, which is transmitted from the sensors.

• Spatial Information Research
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• 제19권1호
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• pp.127-133
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• 2011

Recently, with the advances in sensor techniques and net work computing, Ubiquitous Sensor Network (USN) has been received a lot of attentions from various communities. The sensor nodes distributed in the sensor network tend to continuously generate a large amount of data, which is called stream data. Sensor stream data arrives in an online manner so that it is characterized as high-speed, real-time and unbounded and it requires fast data processing to get the up-to-date results. The data stream has many application domains such as traffic analysis, physical distribution, U-healthcare and so on. Therefore, there is an overwhelming need of a USN middleware for processing such online stream data to provide corresponding services to diverse applications. In this paper, we propose a novel USN middleware which can provide users both context-aware service and meaningful sequential patterns. Our proposed USN middleware is mainly focused on location based applications which use stream location data. We also show the implementation of our proposed USN middleware. By using the proposed USN middleware, we can save the developing cost of providing context aware services and stream sequential patterns mainly in location based applications.

• 정보처리학회지
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• 제11권6호
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• pp.56-75
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• 2004

In this article we address some system characteristics and challenging issues in developing Context-aware Middleware for Ubiquitous Computing. The functionalities of a Context-aware Middleware includes gathering context data from hardware/software sensors, reasoning and inferring high-level context data, and disseminating/delivering appropriate context data to interested applications/services. The Middleware should facilitate the query, aggregation, and discovery for the contexts, as well as facilities to specify their privacy policy. Following a formal context model using ontology would enable syntactic and semantic interoperability, and knowledge sharing between different domains. Moddleware should also provide different kinds of context classification mechanical as pluggable modules, including rules written in different types of logic (first order logic, description logic, temporal/spatial logic, fuzzy logic, etc.) as well as machine-learning mechanical (supervised and unsupervised classifiers). Different mechanisms have different power, expressiveness and decidability properties, and system developers can choose the appropriate mechanism that best meets the reasoning requirements of each context. And finally, to promote the context-trigger actions in application level, it is important to provide a uniform and platform-independent interface for applications to express their need for different context data without knowing how that data is acquired. The action could involve adapting to the new environment, notifying the user, communicating with another device to exchange information, or performing any other task.

• 한국실내디자인학회논문집
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• 제21권1호
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• pp.211-219
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• 2012

I.M. Pei, 2nd generation Chinese immigrant to America, has been one of the most recognized architects who designs museum architecture through out the world for completing significant projects such as the East Building of National Gallery of Art(1068-78) as well as Le Grand Louvre Renovation(1983-89) to name a few. His museum architecture, in particular, reveals his detailed consideration on viewer's artistic experience by providing well balanced architecture design to support exhibiting objects while showing his sensitivity on overall functionality of space. In recent projects such as Miho Museum in Japan, Suzhou Museum of China, and Museum of Islamic Art of Qatar, reveals his growing interests in considering "local context" in museum architecture. Therefore, the purpose of this study is focused on analyzing I.M. Pei's three museum projects having its concept focused on local context. Through out the paper, above mentioned museums were analyzed and compared to summarize his design characters and concept including site plan, spatial organization and architectural form. As a result, it is evident that I.M. Pei had put full effort to apply oriental context with modernism through out his museums. In particular, his site plan, spatial organization, and architectural form shows visible connection to comply with nature which is fundamental idea in oriental philosophy. While his basic design philosophy has been borrowed from the tradition, his ultimate design concept shows nature friendliness as well as theoretical system of thoughts and emotion and most of all, his design excellency in representing local context.

• 한국공간정보시스템학회 논문지
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• 제11권4호
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• pp.47-55
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• 2009

최근 이동전화, 와이브로, HSDPA 등 무선인터넷 기술이 발전하면서 이용자의 위치, 상황을 고려한 교통, 관광, 쇼핑 및 긴급구조 등의 맞춤형서비스들이 주목받고 있다. 이용자의 상황에 맞는 맞춤형서비스 제공을 위해서는 무선 단말기를 장착하고 이동하는 이동객체의 연속적으로 변화하는 위치 정보, 시간 정보, 그리고 속도 변화와 같은 동적인 특성 등을 종합적으로 고려해야 한다. 이 논문은 이동객체가 발생시키는 컨텍스트 처리를 위한 트리거의 유형을 정의하고 이러한 트리거를 처리하기 위한 방법들을 설계하고 이용자의 위치에 따라 정보를 제공하기 위한 이동객체의 컨텍스트 트리거를 포함하는 위치기반 푸쉬서비스 플랫폼을 제안한다. 제안된 시스템은 휴대폰 및 텔레매틱스 단말 내장형 GPS의 Ms-assisted 측위 모드 또는 Stand-alone 측위 모드를 기반으로 단말에서 이동객체 스트립 정보를 수집하고, 이용자 단말 에이전트를 통해 이용자의 컨텍스트를 추출하여 이를 서버에 전송하도록 분산 처리 기능을 갖는다.

• Communications for Statistical Applications and Methods
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• 제17권3호
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• pp.349-356
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• 2010

The ordinary least squares based estimator of the disturbance variance in a regression model for spatial panel data is shown to be asymptotically unbiased and weakly consistent in the context of SAR(1), SMA(1) and SARMA(1,1)-disturbances when there is measurement error in the regressor matrix.

• 한국실내디자인학회:학술대회논문집
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• 한국실내디자인학회 2006년도 추계학술발표대회 논문집
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• pp.209-212
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• 2006

To develop in the long view, based on context of city, the spatial program change to new spatial program that can be adopt city architectural environment. The new spatial program must have paring lot, open space, community center, which are infra structure for citizen. The needs about flexible space Increase according to complexity of spatial program. The space of absolutism, is made up hierarchy, can't accommodate complexity of spatial program. Therefore, modern architectural spaces are characterized by non-hierarchy. This research is tendency to search special quality of space program that is going complex composition according to change of modern society and modern architecture space, and analyze characteristic of inner space that have non-hierarchy to correspond hereupon.

• 한국주거학회논문집
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• 제10권3호
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• pp.103-117
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• 1999

Little research has been done regarding the explicit and objective analysis and explanation of the spatial logic of traditional Korean settlement patterns, in spite of many archeological and socio-historical studies. In this paper we present research into spatial mechanisms and their social meanings in three traditional villages in the southern province of Korea. Conventional space-syntax analysis of spatial configuration has been used to analysis and investigate the morphological forms and functions of the traditional villages. The research results show that the traditional Korean villages are spatially deeper and syntactically less connected than other comparable urban forms, such as old European cities. Configurational analysis of the three villages reveals that their spatial structures are configured to have their own spatial logic, not a geometric order but a spatial structure. What is however noteworthy is the way they embrace their own environmental context and factors and implement them into the process of urban growth or spatial construction.