• Title/Summary/Keyword: 상황 이력

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Personalized Recommendation based on Context-Aware for Resource Sharing in Ubiquitous Environments (유비쿼터스 환경에서 자원 공유를 위한 상황인지 기반 개인화 추천)

  • Park, Jong-Hyun;Kang, Ji-Hoon
    • Journal of the Korea Society of Computer and Information
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    • v.16 no.9
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    • pp.19-26
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    • 2011
  • Users want to receive customized service using users' personal device. To fulfill this requirement, the mobile device has to support a lot of functions. However, the mobile device has limitations such as tiny display screens. To solve this limitation problem and provide customized service to users, this paper proposes the environment to provide services by sharing resources and the method to recommend user-suitable resources among sharable resources. For the resource recommendation, This paper analyzes user's behavior pattern from usage history and proposes the method for recommending customized resources. This paper also shows that the approach is reasonable one for resource recommendation through the satisfaction evaluation.

Users' Moving Patterns Analysis for Personalized Product Recommendation in Offline Shopping Malls (오프라인 쇼핑몰에서 개인화된 상품 추천을 위한 사용자의 이동패턴 분석)

  • Choi, Young-Hwan;Lee, Sang-Yong
    • Journal of the Korean Institute of Intelligent Systems
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    • v.16 no.2
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    • pp.185-190
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    • 2006
  • Most systems in ubiquitous computing analyze context information of users which have similar propensity with demographics methods and collaborative filtering to provide personalized recommendation services. The systems have mostly used static context information such as sex, age, job, and purchase history. However the systems have limitation to analyze users' propensity accurately and to provide personalized recommendation services in real-time, because they have difficulty in considering users situation as moving path. In this paper we use users' moving path of dynamic context to consider users situation. For the prediction accuracy we complete with a path completion algorithm to moving path which is inputted to RSOM. We train the moving path to be completed by RSOM, analyze users' moving pattern and predict a future moving path. Then we recommend the nearest product on the prediction path with users' high preference in real-time. As the experimental result, MAE is lower than 0.5 averagely and we confirmed our method can predict users moving path correctly.

Design and Implementation of AIGT System for Safety Certification of Agricultural Products (농산물 안전인증을 위한 AIGT 시스렘의 설계 및 구현)

  • Jung Hoe-Kyung;Yu Seong-Jae;Kim Ki-Tae;Min Byung-Hun
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.7
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    • pp.1246-1252
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    • 2006
  • Recently, customers interest increase in the agricultural product safety when receiving the many information about food problem due to the development of media. Such amid, domestic agricultural environment don't have a system that safety certification of agricultural product. At this rate, domestic agricultural products will decrease the competitive power and apprehend by the giving a market to foreign agricultural product. In this paper, we designed and implementation of AIGT system for the improvement of agricultural environment to producing the agricultural product safety and customers' reliability increase to offering clear information. Also, we defined the right data structure for agricultural environment. The monitoring and video conference are imported for efficient improvement of environment.

U-Service Model for Urban Facility Management (도시시설물관리를 위한 u-서비스 모델)

  • Yu, Sung-Yeol
    • Management & Information Systems Review
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    • v.31 no.1
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    • pp.167-182
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    • 2012
  • Recently, interesting of u-city with ubiquitous computing technologies has increased. In this paper, we propose u-service model for urban facility management based on ubiquitous computing technologies. To propose the research purpose, we define business model for the service and u-service model. And, we propose service function, service process, and relationships between participants to give shape to u-service model. First, we present five service functions; remote monitoring, remote control and inquire, state information, field support, and facility history information. And, we propose overall service process and demand-supply relationship between participants.

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Experimental Study on Random Walk Music Recommendation Considering Users' Listening Preference Behaviors (청취 순서 성향을 고려한 랜덤워크 음악 추천 기법과 실험 사례)

  • Choe, Hye-Jin;Shim, Junho
    • The Journal of Society for e-Business Studies
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    • v.22 no.3
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    • pp.75-85
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    • 2017
  • Personalization recommendations have already proven in many areas of the e-commerce industry. For personalization recommendations, additional work such as reclassifying items is generally necessary, which requires personal information. In this study, we propose a recommendation technique that neither exploit personal information nor reclassify items. We focus on music recommendation and performed experiments with actual music listening data. Experimental analysis shows that the proposed method may result in meaningful recommendations albeit it exploits less amount of data. We analyze the appropriate number of items and present future considerations for contextual recommendation.

A Study on the Blasting Dynamic Analysis using the Measurement Vibration Waveform (실측진동파형을 이용한 발파 동해석 기법에 관한 연구)

  • 최성웅;박의섭;선우춘;정소걸
    • Tunnel and Underground Space
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    • v.14 no.2
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    • pp.108-120
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    • 2004
  • Dynamic analysis has been increased recently to analyze the effect of the blasting vibration on the rock mass as well as the surrounding structures. The major input parameter far the general dynamic analysis, however, is merely the blasting pressure which can be obtained from the blasting pressure-time history curves. But in case of the complicate geological condition it is not simple to apply the blasting pressure on the numerical analysis because e ground vibration characteristics should be obtained considering the complexity of ground condition. Therefore the authors tried to use the blasting vibration waveform as an input data This vinylation frequency could be obtained from the test blasting in the Pasir mine, Indonesia. Through the dynamic numerical analysis on the slopes in Pasir, the current situation of this slope could be simulated precisely.

Workflow based storing model for XML documents (워크플로우 기반의 XML문서의 변경저장 모델)

  • 배혜림
    • The Journal of Society for e-Business Studies
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    • v.9 no.1
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    • pp.139-154
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    • 2004
  • Recent business environments require a company to communicate frequently with other companies. This makes it essential to use XML (eXtensible Markup Language) documents for integration of information systems. Especially in e-Business environments, change management of documents is important to record and trace the history of the documents. In this paper, we propose a new method of storing a document by detecting changes automatically and reconstructing the document version when a user requests. In addition, based on the method, we also propose a model to recover a document into previous state even when system errors occur. A prototype system is implemented on top of a workflow system and an experiment is carried out to present efficiency of our method. Our approach provides efficiency of storage space and convenient management of documents.

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Conceptual designing of Market Operation System from IT perspective (차기 전력시장운영시스템 설계 고려사항)

  • Kim, Min-Bae;Park, Mun-Cheul;Chung, Woo-Duk;Lee, Geun-Wung
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.660-661
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    • 2011
  • 전력거래소는 전력시장 설계 및 운영을 전담하고 있는 비영리 공공기관으로 정부의 전력산업 구조개편 계획에 따라 2001년부터 시작된 변동비 반영 발전경쟁 전력시장을 운영하고 있다. 본 제도에 기반을 둔 전력거래 제도는 이제 전력시장개설 10년을 넘어서면서 2010년 말 기준 회원사 수 420여 개, 연간 전력거래금액 32조원을 넘어설 정도로 규모면에서 비약적인 확장을 거듭하고 있다. 이러한 전력시장 운영을 가능하게 하는 전력시장운영시스템은 2001년도에 개발되어 현재까지 중대한 장애사례 없이 사용 중이나 향후 증가할 전력시장 참여자 수와 지속적으로 증대되는 데이터를 처리하기에는 시스템 규모와 성능이 거의 한계점에 도달하였다. 또한 전남 나주시 금천면에 공사 중인 혁신도시의 이전을 추진하고 있는 상황 속에서 전력거래소는 신규 시스템을 개발, 도입하여 전력거래 제도의 다양한 변화 요소를 반영하고 사용자의 업무 환경을 개선하여 향후 전력거래 시장을 충실하게 지원하고자 한다. 본 논문에서는 전력시장운영시스템의 주요 기능과 도입이력을 살펴보고, 향후 2014년부터 실 업무에 적용할 차기 전력시장운영시스템의 설계 목표와 요구사항에 대해 IT 측면에서 시스템이 지향해야 할 기술적인 측면에서의 설계 방향을 제시하고자 한다.

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A novel technology of Establishing Intelligent Power Information System based on Multi-Agent (멀티에이전트 기반의 지능형 전력 정보시스템 구축 기술)

  • Kim, Ji-Young;Kim, Sang-Tae;Yu, Nam-Cheol;Lee, Dong-Cheol
    • Proceedings of the Korean Information Science Society Conference
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    • 2008.06d
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    • pp.307-312
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    • 2008
  • 최근 전기 전력 도메인의 IT화 (전력 IT) 가 본격적으로 진행되면서 전기 데이터를 취득하기 위한 기기들 뿐만 아니라 전력 운영 환경이 변화를 도모하고 있다 본 논문에서는 이런 전력 IT 의 일환으로 개발된 지능형 전력 정보 모니터링 시스템 (K-WAMS)을 소개하고자 한다. 이 시스템은 이기종 분산 환경에서 전력 정보를 실시간으로 전송 받아 현재 전력계통의 상황을 직관적으로 판단할 수 있는 정보를 제공하여 광역 정전을 예방하고자 하는 조기경보시스템 (Early Warning System) 이다. 또한, 전력계통의 안정성 여부를 판단하는 지능형 에이전트의 구현을 통해 광역 정전을 예견하는 지수를 제공하고, 실시간 데이터 처리 및 이력 데이터 저장 에이전트들을 통해 현재 취득되고 있는 현장 데이터 모니터링 기능을 제공한다. K-WAMS 는 실시간으로 전송 처리되는 고속 대용량 데이터들의 처리 지연, 동적 환경으로 인한 네트워크의 부하문제를 해결하기 위해서 IPC Shared Memory 기법을 이용하였고, 동적 프로세스들의 작업 스케줄링을 관리하기 위한 IPC Message Queue 기법을 이용하였다. 또한 논리적 기능 기반으로 설계된 현재 중앙 급전소(GCC) 단위의 설계 모델은 향후 지역 급전소(RCC) 단위로 설치 될 경우 재사용 되어 개발 생산성을 향상시킬 것으로 예상된다.

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A Study on Smart Campus Information Services (스마트 캠퍼스 정보제공 서비스에 관한 연구)

  • Choi, Shin-Hyeong
    • Journal of Convergence Society for SMB
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    • v.6 no.3
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    • pp.79-83
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    • 2016
  • The purpose of this study is to provide customized information to student which study and live in a university campus. In this study, we collect internal data of campus and external data on the Internet such as the blog or SNS and, then store and process them. After that, we propose a system for providing individual students one-to-one marketing by analyzing these data in detail. This system analyzes purchase history information and the attendance of the building, and then transmits the coupon and information individually according to the pattern to the student's mobile phone.