• 제목/요약/키워드: Ubiquitous Information Technology

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유비쿼터스 컴퓨팅 환경 하에서의 전자무역 보안 쟁점과 전략에 관한 소고 (A Study on E-trade Security Issue and Strategy in Ubiquitous Computing Environment)

  • 정성훈;강장묵;이춘수
    • 통상정보연구
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    • 제7권3호
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    • pp.135-156
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    • 2005
  • The rapidly developed environment by ubiquitous computing make the paradigm from e-trade to u-trade. The purpose of the study is to find out issue and the strategic suggestions that could link together between the e-trade and ubiquitous computing in side of information security. The study include the contents as follows; firstly, the technical explanations under the ubiquitous computing, secondly, e-trade's risks in security technology and lastly, issue and strategic suggestions how link them together in integrated view.

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웹 서비스 기반의 USN 응용 개발을 위한 응용서비스 모델 및 플랫폼에 관한 연구 (A Study on the Application Service Model and Platform for Web Services Based on USN Application Developments)

  • 김창수;조극양;정회경
    • 한국정보통신학회:학술대회논문집
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    • 한국해양정보통신학회 2010년도 추계학술대회
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    • pp.485-488
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    • 2010
  • 최근 인터넷의 보급 및 컴퓨터 네트워크 기술의 발전과 더불어 차세대 컴퓨팅 패러다임으로 불리는 유비쿼터스 컴퓨팅(Ubiquitous Computing)을 실현하기 위한 연구가 활발히 진행되고 있다. 이는 컴퓨터 네트워크와 인터넷을 기반으로 하여 시공간의 제약에 구애 받지 않고 인간을 중심으로 한 서비스를 수행하는 기준이 될 것이다. 유비쿼터스 컴퓨팅을 위한 핵심 기술로서 USN(Ubiquitous Sensor Network)이 제시되고 있다. 이에 본 논문에서는, 센서 정보를 표준화된 형태로 서술하기 위한 정보 서술 표준과 USN 센서 서비스에 대한 디렉토리 서비스 프로토콜 응용 표준에 대해 연구하였다.

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Context-Awareness for Ubiquitous Computing System

  • Kang, Dong-Hoon;Ahn, Sang-Chul;Ko, Hee-Dong;Cho, We-Duke;Park, Young-Tack
    • 한국지능정보시스템학회:학술대회논문집
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    • 한국지능정보시스템학회 2004년도 추계학술대회
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    • pp.158-161
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    • 2004
  • In this paper, we propose a level of contexts such as low level and high level contexts, and its criteria of categorization are the existence of interaction and composite process done by the inference mechanism. When there is no matching high level service for the associated high level context, this context is described as meaningless. If the services cannot be provided with the entities by the system, this situational information is of little consequence. To provide services with the entities, we propose "community computing" architectural concept which provide the high level service to a group of agents in a community, and can be managed by the service scenario

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능동형 미디어 스토리지 플로폼 연구 (A Research of Active Media Storage Platform)

  • 박상현;손재기;박창원
    • 한국정보통신설비학회:학술대회논문집
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    • 한국정보통신설비학회 2004년도 하계학술대회
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    • pp.132-136
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    • 2004
  • 본 논문은 SDP(Software Define Platform)와 연동하여 홈 네트워킹에 필요한 정보를 저장하고 검색하는 홈 네트워크 저장장치인 능동형 미디어 스토리지 플랫폼 연구에 관해 기술한다. 능동형 미디어 스토리지 플랫폼은 단순한 데이터 저장 뿐만 아니라 SDP가 요구하는 정보를 어플리케이션에 따라 다르게 처리할 수 있다. 또한 멀티미디어 스트림을 로컬 네트워크상에 최적화하여 어플리케이션에 제공한다.

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건설산업의 새로운 성장동력, 유비쿼터스 건설 분야 전망 (The Prospect of Ubiquitous Construction, A New Driving Force for Construction Industry)

  • 황찬규
    • 한국산학기술학회논문지
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    • 제9권2호
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    • pp.475-479
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    • 2008
  • 유비쿼터스 (Ubiquitous)는 정보혁명에 뒤이은 제 4의 혁명으로, 우리 사회를 변혁시키는 또 하나의 물결로 많은 전문가들이 전망하고 있다. 유비쿼터스 첨단융합 건설은 우리나라 건설 산업이 새로운 부가가치를 창출할 수 있는 블루오션 영역으로서 적극적인 참여와 도전이 요구되는 영역이다. 많은 전문가들이 2008년을 유비쿼터스 사회에 진입하며, 2015년에는 성숙의 시대가 될 것으로 전망하고 있다. 정보통신 분야의 강국인 우리나라는 신도시 건설과 결합된 U-City 100개 수출은 우리나라의 새로운 성장동력이 될 수 있을 것이다.

Context-Awareness for Location Based-Service for Ubiquitous Learning with underlying Principles of Ontology, Constructivism, Artificial Intelligence

  • Gelogo, Yvette;Kim, Hye-jin
    • International Journal of Internet, Broadcasting and Communication
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    • 제4권2호
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    • pp.7-11
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    • 2012
  • In this paper, we defined constructivism and ontology theory and associate it in ubiquitous learning. The typical ubiquitous learning involving the Context Aware Intelligent system was presented. Also the Architecture for learning environment including the key idea and technical concept is being presented in this paper. Guided with these principles and with the advancement of information and communication technology the context-awareness based on Artificial intelligence for Location based Service for ubiquitous Learning was conceptualized.

U-마켓에서의 사용자 정보보호를 위한 매장 추천방법 (A Store Recommendation Procedure in Ubiquitous Market for User Privacy)

  • 김재경;채경희;구자철
    • Asia pacific journal of information systems
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    • 제18권3호
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    • pp.123-145
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    • 2008
  • Recently, as the information communication technology develops, the discussion regarding the ubiquitous environment is occurring in diverse perspectives. Ubiquitous environment is an environment that could transfer data through networks regardless of the physical space, virtual space, time or location. In order to realize the ubiquitous environment, the Pervasive Sensing technology that enables the recognition of users' data without the border between physical and virtual space is required. In addition, the latest and diversified technologies such as Context-Awareness technology are necessary to construct the context around the user by sharing the data accessed through the Pervasive Sensing technology and linkage technology that is to prevent information loss through the wired, wireless networking and database. Especially, Pervasive Sensing technology is taken as an essential technology that enables user oriented services by recognizing the needs of the users even before the users inquire. There are lots of characteristics of ubiquitous environment through the technologies mentioned above such as ubiquity, abundance of data, mutuality, high information density, individualization and customization. Among them, information density directs the accessible amount and quality of the information and it is stored in bulk with ensured quality through Pervasive Sensing technology. Using this, in the companies, the personalized contents(or information) providing became possible for a target customer. Most of all, there are an increasing number of researches with respect to recommender systems that provide what customers need even when the customers do not explicitly ask something for their needs. Recommender systems are well renowned for its affirmative effect that enlarges the selling opportunities and reduces the searching cost of customers since it finds and provides information according to the customers' traits and preference in advance, in a commerce environment. Recommender systems have proved its usability through several methodologies and experiments conducted upon many different fields from the mid-1990s. Most of the researches related with the recommender systems until now take the products or information of internet or mobile context as its object, but there is not enough research concerned with recommending adequate store to customers in a ubiquitous environment. It is possible to track customers' behaviors in a ubiquitous environment, the same way it is implemented in an online market space even when customers are purchasing in an offline marketplace. Unlike existing internet space, in ubiquitous environment, the interest toward the stores is increasing that provides information according to the traffic line of the customers. In other words, the same product can be purchased in several different stores and the preferred store can be different from the customers by personal preference such as traffic line between stores, location, atmosphere, quality, and price. Krulwich(1997) has developed Lifestyle Finder which recommends a product and a store by using the demographical information and purchasing information generated in the internet commerce. Also, Fano(1998) has created a Shopper's Eye which is an information proving system. The information regarding the closest store from the customers' present location is shown when the customer has sent a to-buy list, Sadeh(2003) developed MyCampus that recommends appropriate information and a store in accordance with the schedule saved in a customers' mobile. Moreover, Keegan and O'Hare(2004) came up with EasiShop that provides the suitable tore information including price, after service, and accessibility after analyzing the to-buy list and the current location of customers. However, Krulwich(1997) does not indicate the characteristics of physical space based on the online commerce context and Keegan and O'Hare(2004) only provides information about store related to a product, while Fano(1998) does not fully consider the relationship between the preference toward the stores and the store itself. The most recent research by Sedah(2003), experimented on campus by suggesting recommender systems that reflect situation and preference information besides the characteristics of the physical space. Yet, there is a potential problem since the researches are based on location and preference information of customers which is connected to the invasion of privacy. The primary beginning point of controversy is an invasion of privacy and individual information in a ubiquitous environment according to researches conducted by Al-Muhtadi(2002), Beresford and Stajano(2003), and Ren(2006). Additionally, individuals want to be left anonymous to protect their own personal information, mentioned in Srivastava(2000). Therefore, in this paper, we suggest a methodology to recommend stores in U-market on the basis of ubiquitous environment not using personal information in order to protect individual information and privacy. The main idea behind our suggested methodology is based on Feature Matrices model (FM model, Shahabi and Banaei-Kashani, 2003) that uses clusters of customers' similar transaction data, which is similar to the Collaborative Filtering. However unlike Collaborative Filtering, this methodology overcomes the problems of personal information and privacy since it is not aware of the customer, exactly who they are, The methodology is compared with single trait model(vector model) such as visitor logs, while looking at the actual improvements of the recommendation when the context information is used. It is not easy to find real U-market data, so we experimented with factual data from a real department store with context information. The recommendation procedure of U-market proposed in this paper is divided into four major phases. First phase is collecting and preprocessing data for analysis of shopping patterns of customers. The traits of shopping patterns are expressed as feature matrices of N dimension. On second phase, the similar shopping patterns are grouped into clusters and the representative pattern of each cluster is derived. The distance between shopping patterns is calculated by Projected Pure Euclidean Distance (Shahabi and Banaei-Kashani, 2003). Third phase finds a representative pattern that is similar to a target customer, and at the same time, the shopping information of the customer is traced and saved dynamically. Fourth, the next store is recommended based on the physical distance between stores of representative patterns and the present location of target customer. In this research, we have evaluated the accuracy of recommendation method based on a factual data derived from a department store. There are technological difficulties of tracking on a real-time basis so we extracted purchasing related information and we added on context information on each transaction. As a result, recommendation based on FM model that applies purchasing and context information is more stable and accurate compared to that of vector model. Additionally, we could find more precise recommendation result as more shopping information is accumulated. Realistically, because of the limitation of ubiquitous environment realization, we were not able to reflect on all different kinds of context but more explicit analysis is expected to be attainable in the future after practical system is embodied.

유비쿼터스 환경을 위한 과학기술 콘텐츠의 모바일 서비스 방안 - KISTI의 과학향기 사례를 중심으로 - (A Mobile Service Method of S&T Information Content for Ubiquitous Environment - focused on KISTI's Scent of Science Service -)

  • 현미환;이충무;김선태;김지영;예용희
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2008년도 춘계 종합학술대회 논문집
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    • pp.469-472
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    • 2008
  • 무선 단말기는 유비쿼터스 환경을 위한 최적의 장치지만 무선단말기를 이용한 인터넷 서비스는 데스크탑 환경에 비해 제한적이다. 무선 단말기의 작은 화면이나 제한된 입력장치와 같은 특성을 고려해 볼 때 효과적인 웹 접근을 위한 새로운 기법이 요구되고 있다. 본 논문에서는 메일진 서비스인 KISTI의 과학향기 콘텐츠의 모바일 서비스 구현 사례를 통해 모바일 환경에 적합한 과학기술정보 콘텐츠 제공 방안을 제안하고자 한다.

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유비쿼터스 학습공간과 OWL 상황 모델 설계를 통한 상황 인식 학습 시스템 구현 (Implementation of Context aware Learning System by Designing Ubiquitous Learning Space and OWL Context Model)

  • 홍명우;이용환
    • 한국컴퓨터정보학회논문지
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    • 제16권6호
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    • pp.99-109
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    • 2011
  • 유비쿼터스 컴퓨팅 기술은 유비쿼터스 학습 즉 u-러닝의 출현을 이끌며 미래 학교 교육의 개선 방향으로 제시되고 있다. 유비쿼터스 학습 환경에서는 우선 사용자들이 언제 어디서나 학습을 위해 다양한 내장형 컴퓨터들을 활용할 수 있도록 이러한 기기들을 도처에 편재시키고 네트워크를 통한 상호작용을 지원하는 것이다. 다음 단계는 지능적인 학습 서비스를 지원하는 것으로, 상황 정보를 이해하고 이를 공유하도록 상황 지식과 상황 추론이 가능한 상황 인식 서비스를 도입하는 것이다. 그러나 아직까지 실제 학교를 대상으로 상황 인식 서비스를 지원하기 위한 온톨로지 상황 모델 설계 및 적용에 대한 연구결과는 미비한 상태이다, 이에 본 논문은 상황 인식 기반의 유비쿼터스 학습 서비스를 지원하기 위해, 기존 LAN 환경에서 이루어지는 학교 네트워크를 대상으로 USN을 활용한 유비쿼터스 학습 공간을 제안하고, OWL을 사용해 유비쿼터스학교 환경에대한온톨로지기반의상황모델을설계한다. 또한제안한유비쿼터스학습공간과온톨로지상황모델이 유비쿼터스 학습 환경에 적합함을 확인하기 위해 유비쿼터스 환경에서의 상황 인식 학습 서비스들을 구현한다.

방재정보통신시스템 관리 운용 및 응용에 관한 연구 (A Study on the Management and Application for Prevention Information Communication System)

  • 강희조
    • 한국항행학회논문지
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    • 제12권6호
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    • pp.611-618
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    • 2008
  • 방재통신시스템은 방재행정무선시스템을 주체로 정비되고 최근에는 위성통신을 확대하고, 유선통신과의 상호보완 멀티미디어화 등을 들 수 있다. 유비쿼터스 센서 네트워크를 기반으로 방재정보통신 분야로는 풍수해, 시설안전, 교통안전, 산업안전, 에너지안전, 소방안전, 정보통신 안전, 특수안전 분야에는 방사능 누출사고, 환경오염, 해양오염, 산림재해 등이 있다. 본 논문에서는 USN(Ubiquitous Sensor Network) 기술을 이용한 방재정보통신시스템을 통신 기반시설로서 방재와 관련한 정보를 일원적으로 관리 운용하는 시스템 및 용용에 대하여 연구한다.

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