• Title/Summary/Keyword: On-Demand Service

Search Result 2,321, Processing Time 0.039 seconds

A Study on the Demand Pattern Analysis of Fixed Mobile Convergence Telecommunication Service (유.무선 컨버전스 서비스 수요 Pattern에 관한 연구)

  • Bae, Khee-Su;Sawng, Yeong-Wha
    • Korean Management Science Review
    • /
    • v.23 no.3
    • /
    • pp.1-11
    • /
    • 2006
  • This study investigates empirically on the business analysis of fixed mobile convergence telecommunication service. As for the stage of empirical analysis, the process was carried out in the order elaboration of a test model, selection of sample, empirical analysis and interpretation of result. We report our Preliminary results on the fixed mobile convergence telecommunication service demand pattern forecasting by Bass model. The results show that the fixed mobile convergence telecommunication service may sustain profitability over the next ten years in the market. In conclusion, the practical implication of the result attained by this study is that in order to create a fixed mobile convergence in the korean business world, practical tools such as WiBro service is no less important than fixed service and Mobile service, and that users may be rightfully encouraged to adopt WiBro service.

A Scalable VoD Service Scheme Based on Overlay Multicast Approach (오버레이 멀티캐스트를 적용한 확장성 있는 VoD 서비스 모델)

  • Kim Kyung-Hoon;Son Seung-Chul;Nam Ji-Seung
    • The Journal of Korean Institute of Communications and Information Sciences
    • /
    • v.30 no.11B
    • /
    • pp.784-791
    • /
    • 2005
  • To provide VoD Service on the Internet VoD server is required to have a large amount of system resource and network bandwidth. Therefore, overlay Multicast schemes are considered as suitable alternatives but they also have some drawbacks to support on-demand media services. In this paper, we propose an overlay multicast based on-demand media service scheme which could exploit server's system resource and its network bandwidth efficiently. Proposed scheme uses shared buffer of clients involving the relay of traffic and Patching while it gives no restrictions to this scheme compared with unicast. Our simulation results show that proposed scheme can support more user than unicast and improve the network performance at the same time.

A study on service parts demand forecasting considering parts life cycle (부품 수명주기를 고려한 서비스 부품의 수요예측에 관한 연구)

  • Kwon, Ick-Hyun
    • Journal of the Korea Safety Management & Science
    • /
    • v.19 no.3
    • /
    • pp.97-107
    • /
    • 2017
  • This research studies on the demand forecasting for service parts considering parts life cycle, that gets relatively less attentions in the field of forecasting. Our goal is to develop forecasting method robust across many situations, not necessarily optimal for a limited number of specific situations. For this purpose, we first extensively analyze the drawbacks of the existing forecasting methods, then we propose the new demand forecasting method by using these findings and reinforcement leaning technique. Using simulation experiments, we proved that the proposed forecasting method is better than the existing methods under various experimental environments.

Demand Estimation of Car-sharing Service Using Web-site Reservation Requesting Log Data (웹사이트 조회이력자료를 활용한 카셰어링 수요 추정 및 분석)

  • Kwon, Ohyeon;Choi, Yoon-Young;Byun, Wan-Hee;Lee, Chungwon
    • The Journal of The Korea Institute of Intelligent Transport Systems
    • /
    • v.14 no.4
    • /
    • pp.10-17
    • /
    • 2015
  • Currently, there are increasing demand for researches on the development of car-sharing operating strategy. In order to carry out the research, demand for car-sharing is required. However, since previous researches only adopted performance data or demand derived from several assumptions, spilled demand has been spotted due to lack of available cars. For this reason, we plan to suggest the way to estimate the value including spilled demand which has been spotted previously based on the record of utilization on the website of operating company, actual company providing car-sharing service. In the case of 'LH Happycar Service', difference between estimated demand and record of utilization is about twice the difference between estimated demand and record of inquiry. Especially, it is found that service rate does not go above once it reaches to its maximum rate because it cannot satisfy additional demands. In short, when we evaluate the demand for individual station based on the record of utilization only, it would be possible to underestimate the demand especially for the station at full capacity.

Anonymous Pay-Per-View Service for Web-Based Video-on-Demand Systems (웹 기반 VOD 시스템을 위한 익명성이 제공되는 Pay-Per-View 서비스)

  • Joo, Han-Kyu
    • Journal of Digital Contents Society
    • /
    • v.9 no.1
    • /
    • pp.69-75
    • /
    • 2008
  • Video-on-demand (VOD) service allows subscribers to view any video whenever they want. With the development of the high speed computer networks, web-based VOD services are available. To support VOD services, charging scheme is necessary. Pay-per-view is an effective charging scheme for VOD services. Pay-per-view allows the subscribers to pay for what they have viewed. Privacy is another important attribute for VOD services. The subscribers may not want to reveal what they have viewed to anyone including the VOD provider. Anonymity makes it complicated to calculate charge for the VOD service. An approach that achieves both anonymity and pay-per-view charge calculation is necessary. In this paper, anonymous web-based VOD service is proposed. The proposed approach also gives pay-per-view capability.

  • PDF

Performance Comparison of On-demand Routing Protocol to Supply Secure Service for Mobile Ad Hoc Networks (MANET에서 안전한 서비스 제공을 위한 On-demand 라우팅 프로토콜의 성능 비교)

  • Heo, Jin-Kyoung;Yang, Hwan-Seok
    • Journal of Digital Contents Society
    • /
    • v.10 no.2
    • /
    • pp.349-355
    • /
    • 2009
  • MANET is network that attach importance to not only service of large network as internet but also support of communication among each nodes because infrastructure constitution is disadvantage economically or difficult physically. The most important part in protection of systems constitute MANET is that authenticate each nodes securely and offer reliable service. Well defined routing technique is necessity to this. In this paper, in order to offer safe service, we compare capacity of present security routing protocol, analyze to solve weakness of existing on-demand routing protocol and existing routing protocol and argue with study course of hereafter security routing protocol.

  • PDF

Development of Travel Matching Service Platforms Based on Reverse Auction (역경매 기반의 여행 매칭 서비스 플랫폼 개발)

  • Park, Hyuk-Gyu;Lee, Min-Hye;Won, Dong-Hyun;Kang, Yun-Jeong
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2022.10a
    • /
    • pp.370-372
    • /
    • 2022
  • In an on-demand economy that provides products and services immediately in response to consumer needs, consumers have a significant influence on pricing. In the travel-related fields, service providers are also making great efforts to reflect the needs of consumers and provide better services. In this paper, unlike many travel-related service platforms where sellers unilaterally determine prices, we propose a reverse auction-based service platform method in which consumers propose travel-related services and prices. The proposed matching service platform is expected to be able to provide two-way services differentiated from existing standardized travel-related services by analyzing the needs of various consumers and reflecting the collected response data.

  • PDF

Product Life Cycle Based Service Demand Forecasting Using Self-Organizing Map (SOM을 이용한 제품수명주기 기반 서비스 수요예측)

  • Chang, Nam-Sik
    • Journal of Intelligence and Information Systems
    • /
    • v.15 no.4
    • /
    • pp.37-51
    • /
    • 2009
  • One of the critical issues in the management of manufacturing companies is the efficient process of planning and operating service resources such as human, parts, and facilities, and it begins with the accurate service demand forecasting. In this research, service and sales data from the LCD monitor manufacturer is considered for an empirical study on Product Life Cycle (PLC) based service demand forecasting. The proposed PLC forecasting approach consists of four steps : understanding the basic statistics of data, clustering models using a self-organizing map, developing respective forecasting models for each segment, comparing the accuracy performance. Empirical experiments show that the PLC approach outperformed the traditional approaches in terms of root mean square error and mean absolute percentage error.

  • PDF

Forecasting Demand for the PCS Resale Service with Survey Data in Korea (설문자료를 이용한 국내 PCS 재판매 서비스 수요예측)

  • Jun, Duk-Bin;Park, Myoung-Hwan;Ahn, Jae-Hyeon;Kim, Gye-Hong;Kim, Seon-Kyoung;Park, Dae-Keun;Park, Yoon-Seo;Cha, Kyung-Cheon;Lee, Jung-Jin
    • IE interfaces
    • /
    • v.13 no.4
    • /
    • pp.619-626
    • /
    • 2000
  • In this paper, we place the focus on suggesting a method of forecasting demand for PCS resale service with survey data in Korea. It is important for the service provider to forecast the diffusion process when designing marketing strategies and analyzing the costs and benefits. For the reason, we conduct a survey of three groups composed of non-subscribers, cellular subscribers, and PCS subscribers in order to forecast the demand according to several possible scenarios and business strategies. We consider the survey item that is measured by multiple point scales in response to a question if he would subscribe to the mobile telephone service in the future. We propose a method to forecast the size of market potential by classifying each individual into the two extreme groups, that is, yes or no. Then, by integrating survey data and historical data, we forecast the demand for PCS resale service that varies according to scenarios and strategies. From the results, we can find several implications for the provider of PCS resale service.

  • PDF

The development of knowledge service needs assessment model for small and medium-sized businesses (중소기업을 위한 지식서비스 수요 조사 모형 개발)

  • Maeng, Yun-ho;Yoo, Sun-Hi;Seo, Jinny
    • Knowledge Management Research
    • /
    • v.16 no.4
    • /
    • pp.169-190
    • /
    • 2015
  • The status of small and medium-sized enterprises has been changed into more independent business entities rather than simply subcontractor so that the utilization of specialized knowledge has been much more necessary for the survival in the market. However, small and medium-sized enterprises, it is difficult to sufficient investment in knowledge services due to limited resources relative to large enterprises and demand for knowledge services business of government support is growing. For this reason, it is important to measure accurately the demand for knowledge services of small and medium-sized enterprises in knowledge management for effective utilization of knowledge service. In this study, we analyzed previous studies on small and medium-sized enterprises knowledge services that can be utilized in a comprehensive way. As a result, we developed knowledge service needs assessment model based on five critical success factors for continual growth and 12 types of knowledge service. This model has been modified and supplemented through expert meeting using delphi research method and topic modeling analysis using secondary data. This study is attempted to appropriately measure necessary knowledge services for small and medium-sized enterprises so that generated the evaluation model of knowledge service demands, comprehensively dealing with core knowledge services for many kinds of business entities. It is expected that the developed model will be a useful tool to understand and evaluate knowledge services demands of enterprises.