• Title/Summary/Keyword: Guide Service

Search Result 617, Processing Time 0.024 seconds

Network Selection Algorithm for Heterogeneous Wireless Networks Based on Multi-Objective Discrete Particle Swarm Optimization

  • Zhang, Wenzhu;Kwak, Kyung-Sup;Feng, Chengxiao
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.6 no.7
    • /
    • pp.1802-1814
    • /
    • 2012
  • In order to guide users to select the most optimal access network in heterogeneous wireless networks, a network selection algorithm is proposed which is designed based on multi-objective discrete particle swarm optimization (Multi-Objective Discrete Particle Swarm Optimization, MODPSO). The proposed algorithm keeps fast convergence speed and strong adaptability features of the particle swarm optimization. In addition, it updates an elite set to achieve multi-objective decision-making. Meanwhile, a mutation operator is adopted to make the algorithm converge to the global optimal. Simulation results show that compared to the single-objective algorithm, the proposed algorithm can obtain the optimal combination performance and take into account both the network state and the user preferences.

Providing Information Literacy Service in Liaison with School Curriculum (학교의 교육과정과 연계한 정보문해 서비스)

  • Byun, Woo-Bock
    • Journal of Korean Library and Information Science Society
    • /
    • v.38 no.4
    • /
    • pp.19-44
    • /
    • 2007
  • In this research, we have identified problems and countermeasures when school library provides information literacy service in liaison with school curriculum. The problems were misunderstanding information literacy as ICT skills, lack of books and librarians, and etc. So we emphasize importance of library and information in information literacy. And for countermeasures, we provide online guide to library resources, 'BIG6 problem solving model' for information literacy teaching-learning, teaching-learning plans for information literacy, formats for teaching-learning process.

  • PDF

Caption Data Transmission Method for HDTV Picture Quality Improvement (DTV 화질향상을 위한 자막데이터 전송방법)

  • Han, Chan-Ho
    • Journal of Korea Multimedia Society
    • /
    • v.20 no.10
    • /
    • pp.1628-1636
    • /
    • 2017
  • Such as closed caption, ancillary data, electronic program guide(EPG), data broadcasting, and etc, increased data for service convenience cause to degrade video quality of high definition contents. This article propose a method to transfer the closed caption data of video contents without video quality degradation. Video quality degradation does not cause in video compression by the block image insertion of caption data in DTV essential hidden area. Additionally the proposed methods have advantage to synchronize video, audio, and caption from preinserted script without time delay.

A Study of Development for Travel Management Application (여행 관리 어플리케이션 개발에 관한 연구)

  • Park, Kwangsoo;Kim, Yongchun;Moon, SongChul
    • Journal of Service Research and Studies
    • /
    • v.4 no.2
    • /
    • pp.49-56
    • /
    • 2014
  • Lately, We have experienced increasing of Smartphone. Therefore we have experienced increasing of Application for Smartphone. This study suggested Tour Management Application using the smartphone. When you travel, you need various information This study of Development for Application provide that guide of travel destination provide means of transportation, time of travel, traveling expensives management. This application will use conveniently This application provide various information of travel and this application will use tool of new mobile business.

  • PDF

Combined Service Subscription and Delivery Energy-Efficient Scheduling in Mobile Cloud Computing

  • Liu, Xing;Yuan, Chaowei;Peng, Enda;Yang, Zhen
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.9 no.5
    • /
    • pp.1587-1605
    • /
    • 2015
  • Mobile cloud computing (MCC) combines mobile Internet and cloud computing to improve the performance of applications. In MCC, the data processing and storage for mobile devices (MDs) is provided on the remote cloud. However, MCC faces the problem of energy efficiency caused by randomly varying channels. In this paper, by introducing the Lyapunov optimization method, we propose a combined service subscription and delivery (CSSD) algorithm that can guide the users to subscribe to services reasonably. This algorithm can also determine whether to deliver the data and to whom data is sent in the current time unit based on the queue backlog and the channel state. Numerical results validate the correctness and effectiveness of our proposed CSSD algorithm.

Efficacy of Anthelmintic According to Guide for Fasciola spp. Infected Cattle( III ) (간질방제에 대한 지도효과( III ))

  • 손봉환;황현순;한태호
    • Korean Journal of Veterinary Service
    • /
    • v.15 no.1
    • /
    • pp.17-25
    • /
    • 1992
  • For evaluation on effects guiding fasciola prevention of which the specimens collected from 6,011 cows rears at 387 farms in inchon were tested to egg count examination for 4 years(1987-1990), and the questionnaire checked up 181 dairy farms for 2 years (1989-1990). The results were summarized as follows. 1. A yearly variation of fasciola infection rate above 31% were 83% In 1987, 58% in 1988, 25% in 1989, noninfection in 1990. 2. The average concentration in feces of infected dairy cattle was 79.4% below 1-10 eggs for 4 years(1987-1990) 3. In the results of the questionnaire for 2 years(1989-1990) the farmers gradually took interest in fasciola prevention. 4. To re-dose anthelmintics was 75.4% in 1989 and 82.5% in 1990 after 5∼7 months from previous dosage.

  • PDF

A Study on Service Restoration Guide by Network Reduction in Distribution Systems (배전계통에서의 계통 축약에 의한 정전 복구방안 수립에 관한 연구)

  • Kim, S.H.;Choi, B.Y.;Lee, S.M.;Cho, S.H.;Lee, J.K.;Moon, Y.H.
    • Proceedings of the KIEE Conference
    • /
    • 1995.07b
    • /
    • pp.500-502
    • /
    • 1995
  • Whenever faults(a fault) occur(s) in a particular section of a distribution system, some of loads get disconnected and are left unsupplied. Service should be restored to these affected load points as quickly as possible through network reconfiguration. An efficient technique is presented in this paper for this purpose. Network reduction and strategy testing the voltage and current constraints are the main contributions of this paper.

  • PDF

Using Metaverse and AI recommendation services Development of Korea's leading kiosk usage service guide (메타버스와 AI 추천서비스를 활용한 국내 대표 키오스크 사용서비스 안내 개발)

  • SuHyeon Choi;MinJung Lee;JinSeo Park;Yeon Ho Seo;Jaehyun Moon
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • 2023.11a
    • /
    • pp.886-887
    • /
    • 2023
  • This paper is about the development of kiosks that provide four types of service. Simple UI and educational videos solve the complexity of existing kiosks and provide an intuitive and convenient screen to users. In addition, the AR function, which is a three-dimensional form, shows directions and store representative images. After storing user information in the DB, a learning model is generated using user-based KNN collaborative filtering to provide a recommendation menu. As a result, it is possible to increase user convenience through kiosks using metaverse and AI recommendation services. It is also expected to solve digital alienation of social classes who have difficulty using kiosks.

아웃소싱의 서비스 수준 협약 : 개념적 모형과 성공 요인에 관한 연구

  • Kim Se Han;Nam Gi Chan;Kim Seung Yun
    • Proceedings of the Korean Operations and Management Science Society Conference
    • /
    • 2003.05a
    • /
    • pp.312-319
    • /
    • 2003
  • In late 90s, organizations recognized the information technology as an key enabler of the business strategic accomplishment which lead them heavy increment on IT investment. These organizations tried to hold the competitive advantage by focusing on their core competency. And these acts raise their interests on IT outsourcing. Recent trends of the organizations concern on evaluating the effectiveness of the previous IT investment and the reasonable selection on IT investment type. Also, the objective evaluation of the service level and continuous improvement are major concern of the outsourcer. Consequently, interests on Service Level Agreement (SLA), an immanence operating tool for managing the level of the information system service objectively and qualitatively, were raised among IT outsourcing service providers, outsourcers, and operating departments. Yet, only a few domestic conglomerates adopted the SLA, and exact usage of the SLA is currently unknown. Because of the importance of the SLA between a service provider and an outsourcer, the agreement is treated with high confidentiality. This raised the problems to both the private and public organizations, are considering the SLA, with absence of concrete guide line to internalize SLA management process. This study provides the organizational and environmental factors of the adopting and applying the Service Level Agreement (SLA) by conducting multiple case research. The sampled companies are currently implementing the SLA over 1 year of usage period. Factors were used to provide the operational contribution for implementing the SLA. The study also provides the effects on IT performance through the SLA. For this, in depth interview was conducted for each sampled company. As a result, if SLA between outsourcer and service provider can be used as an immanence operation tool and actively implemented, SLA will be an strategic tool for various decision making in IT management practice with long term relationship, better shared partnership, and continuous service improvement.

  • PDF

Research about Factor Affecting the Continuous Use of Cloud Storage Service : User Factor, System Factor, Psychological Switching Cost Factor (클라우드 스토리지 서비스의 지속적 사용의도에 영향을 미치는 요인 연구 : 사용자 요인, 시스템 요인, 심리적 전환비용)

  • Jun, Chang-Joong;Lee, Jung-Hoon;Jeon, In-Sook
    • The Journal of Society for e-Business Studies
    • /
    • v.19 no.1
    • /
    • pp.15-42
    • /
    • 2014
  • Cloud storage service has the potential to be a core infrastructure for the future mobile and Internet service; thus related service providers have been investing in it and trying to attract as many users as possible. In addition, those need to find out what motivates the users to keep using their service not only to attract new customers but also to secure their subscribers. Therefore, this study will examine its relationship with user's motivation based on the extended TAM model with external variables for objective research about continuous use of cloud storage service. As a result, it was found that personal innovativeness, self efficacy, functional attributes, and psychological switching cost influence the continuous use of cloud storage service. Also, it is expected they can guide service providers to the right track when setting up their business strategy in the future.