• Title/Summary/Keyword: Class of Service

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A Simulated Annealing Method for the Optimization Problem in a Multi-Server and Multi-Class Customer Ssystem

  • Yoo, Seuck-Cheun
    • Journal of the Korean Operations Research and Management Science Society
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    • v.18 no.2
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    • pp.83-103
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    • 1993
  • This paper addresses an optimization problem faced by a multi-server and multi-class customer system in manufacturing facilities and service industries. This paper presents a model of an integrated problem of server allocation and customer type partitioning. We approximate the problem through two types of models to make it tractable. As soution approach, the simulated annealing heuristic is constructed based on the general simulated annealing method. Computational results are presented.

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An Application-based Forwarding Model of MPLS ATM Switching System for Differential Services (차별화 서비스를 위한 MPLS ATM 교환 시스템의 응용 기반 포워딩 모델 설계)

  • 김응하;조영종
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.27 no.3C
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    • pp.201-210
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    • 2002
  • A number or MPLS ATM switching system have been proposed to increase the access speed or current routers, but they cannot satisfy the Internet users who use diverse applications. So they are required to support the so-called differential service, which discriminates service behaviors according to the service class. In this paper, to support this differential service we suggest an LSP control method, which uses the extended LDP message and establishes several different LSPs for each FEC according to the service class. Also, we propose an marking algorithm using the cell loss priority field or ATM cells in order to process the differential service according to application categories. In addition, we present a forwarding procedure based on the LSP control method and the marking algorithm. A forwarding model applied this forwarding procedure can be easily implemented with a minimum modification of existing MPLS ATM switching systems. Therefore, we can save cost and time needed to implement the proposed model. Finally, we estimate the performance behaviors of the proposed application-based forwarding model by the AweSim simulation package.

Study on clothing store selection and relevant factors - Views on clothing lifestyle and store image - (의류점포선택과 관련변인 연구 - 의생활양식과 점포이미지를 중심으로 -)

  • Jeong, Bok Hee;Park, Eun Joo
    • Journal of the Korean Society of Clothing and Textiles
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    • v.17 no.2
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    • pp.207-217
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    • 1993
  • The purposes of this study were to identify the components of store image of women's clothing and to explain the relationships between store images and selection behaviors. Data were obtained from 330 females who college women and office girls in Busan. Its were analyzed by factor analysis, cannonical correlation, regression analysis and discriminant analysis. The results of this study were as follows ; 1. Dimensions of the clothing lifestyle were classified individuality-seeking, information-seeking, comfort-seeking and quality-seeking. 2. Store image factors of women's clothing were identified quality, design, information service, atmosphere and convenience. The types of preference store were the general public store, the public high class store and general obscure store. 3. It appears that designs is the factors to make store image of individuality-seeking, information-seeking and comfort-seeking and information service is the one to make store image of quality-seeking. Also they were usually purchased in the general public store by individality-seeking consumers and comfort-seeking consumers and purchased in the public high class store by information-seeking consumers and quality-seeking consumers. The store images, espacially the information service image, was contributed to the store selection behaviovs more than lifestyle. But lifestyle, espacially the comfort-seeking consumers, was contributed to the store behavior of the three types of store more than store image.

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Priority Therapeutic Groups to Expand Development of Prescribing Indicators using a Consensus Group of Health Care Professionals (전문가 조사를 활용한 약제급여 적정성 평가 항목 및 지표 확대방안 도출)

  • Jeon, Ha-Lim;Kim, Dong-Sook;Kim, Bo-Yun
    • YAKHAK HOEJI
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    • v.59 no.4
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    • pp.190-200
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    • 2015
  • Evaluation Project on Appropriate Prescribing (EPAP) which is analysing prescribing pattern and providing physicians feedback has begun in 2001. EPAP indicators are related to antibiotics for acute respiratory tract infections, overuse of injection, polypharmacy (no. of drugs prescribed together, no. of prescriptions with 6 or more drugs), prescribing of specific medication group (drugs for acid related disorders, NSAIDs, corticosteroids) and medication expenditure per prescription day. The aim of this study was to suggest a development plan for EPAP indicators suitable for domestic situation. A consensus group consisting of seventeen health care professionals evaluated significance of each therapeutic class for EPAP indicators expansion considering information such as magnitude of issue, prescribing indicators of foreign countries, reimbursement criteria by each therapeutic class. Based on the data and group survey, 5 classes were selected as candidates for prescribing indicators and we presented 24 indicators regarding 5 classes. The results suggested that we need to augment evaluation indicators of additional area.

Efficient Class Identification based on Event (이벤트 기반의 효율적인 클래스 식별)

  • Choi, Mi-Sook;Lee, Jong-Suk
    • Journal of Digital Contents Society
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    • v.9 no.2
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    • pp.165-175
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    • 2008
  • Currently, software development methods have been advanced to service-oriented from component-oriented, to component-oriented from object-oriented. The component-oriented and service-oriented software development methods are analyzed by object-oriented UML model. So, the efficient analysis method for object-oriented UML model needs. In this paper, we suggest the analysis guideline and process based on event using Input Data-Process-Output Data Table for identifying use cases and classes efficiently. And the suggested method complements the problems depending the developer's perspective and experience.

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Constructing Ontology based on Korean Parts of Speech and Applying to Vehicle Services (한국어 품사 기반 온톨로지 구축 방법 및 차량 서비스 적용 방안)

  • Cha, Si-Ho;Ryu, Minwoo
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.17 no.4
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    • pp.103-108
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    • 2021
  • Knowledge graph is a technology that improves search results by using semantic information based on various resources. Therefore, due to these advantages, the knowledge graph is being defined as one of the core research technologies to provide AI-based services recently. However, in the case of the knowledge graph, since the form of knowledge collected from various service domains is defined as plain text, it is very important to be able to analyze the text and understand its meaning. Recently, various lexical dictionaries have been proposed together with the knowledge graph, but since most lexical dictionaries are defined in a language other than Korean, there is a problem in that the corresponding language dictionary cannot be used when providing a Korean knowledge service. To solve this problem, this paper proposes an ontology based on the parts of speech of Korean. The proposed ontology uses 9 parts of speech in Korean to enable the interpretation of words and their semantic meaning through a semantic connection between word class and word class. We also studied various scenarios to apply the proposed ontology to vehicle services.

Analysis of the Menu from a Japanese Restaurant Using Menu Engineering and Cost/Margin Analysis - A Case of a Restaurant at a First Class (A) Hotel - (메뉴 엔지니어링, CMA분석방법에 의한 일식 메뉴 비교분석 - 특 1급 A호텔 레스토랑 사례 -)

  • Jeong, Woo-Seok;Byun, Kwang-In;Park, Sung-Su
    • Journal of the Korean Society of Food Culture
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    • v.23 no.5
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    • pp.595-604
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    • 2008
  • This study was conducted to evaluate the menu of a Japanese restaurant in a first class tourism hotel. The calculations used for the menu analysis were conducted using MS Excel 2003. Several previous studies have been conducted to analyze menus. For example, Pavesic used of the weighted contribution margins (WCM) and potential food cost (PFC%) to evaluate menus, while Kasavana & Smith used the mix margin (MM%) and unit contribution margin (CM) to evaluate menus. The menu engineering method focused on the customer's viewpoints, while the Cost/Margin analysis method considered the manager's viewpoints. The menus that need continuous keeping Kasavana & Smith (Star) and Pavesic (Standard) included 'Assorted sashimi with side dishes (big), 'Lunch box special', 'Tempura course', 'Broiled Spanish mackerel and side dishes', 'Shrimp tempura', 'Special sushi', 'Seafood Udong', 'Buckwheat noodles'. The results of this study should increase customer satisfaction and profits at the Japanese Restaurant.

Demographic Characteristics and Welfare Service Needs of Elders Utilizing a Welfare Center (일 복지관 이용 노인들의 인구학적 특성과 노인복지서비스 요구 조사)

  • Park, Hae-Ja
    • Journal of Korean Academy of Rural Health Nursing
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    • v.2 no.1
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    • pp.24-32
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    • 2007
  • Purpose: This study was done to provide statistical data for developing client-needs based welfare services in community welfare facilities. Method: The participants were 270 senior citizens, who visited a community welfare center in Gyunggi province, during the month of October 2005. They were asked to answer a structured questionnaire. Descriptive statistics, $X^2$ test and Fisher's exact test were used to analyze the data from 221 of the elders. Results: 1. More than 50% of the respondents were women aged between 60 and 75, who had education levels above high school and who lived in apartments. Among the respondents, 54.3% lived separately from their children. 2. 70.0% of the respondents considered their health status as "good", even though they had more than one disease. Also 41% of the respondents were supported by their children, and 76.8% wanted jobs. 3. The respondents pointed out several programs such as languages, computer, singing class, physical activities (dances, billiards, Tai-chi and table tennis), needed to be included in the welfare center programs. Conclusions: Elders aged 60-75, educated above high school, living in an apartments, live alone or with spouse, and having frequent contact with children, were the most frequent utilizers of the welfare center. They want the welfare center programs in variety, including languages, computer, singing class, and physical activities.

The Structure of 3-Tirer Context-awareness Processing Server/client based Intelligent Agents (지능형 에이전트 기반의 3-Tirer 컨텍스트 인식 처리 서버/클라이언트 구조)

  • Yun, Hyo-Gun;Lee, Sang-Yong
    • Journal of the Korean Institute of Intelligent Systems
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    • v.15 no.4
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    • pp.479-485
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    • 2005
  • Recently, computing technology requires intelligent system structures for context-awareness in ubiquitous computing environment. An intelligent system for context-awareness is based on agents, and need sensor information to recognize users and frames to support service. Therefore, this paper proposes the structure of 3-tier context-awareness processing server/client that can connect dynamically with each sensor and service, and support various context stably The structure of a proposal system is composed of a client class that recognizes uses' context information, a server class that processes realized context information by an application processing agent, and a management server that manages these two classes. Also, in this structure users information is composed of dynamic profile to support exquisite service.

Food Service Management in Elementary School in Chunnam Province (전남 초등학교의 급식유형별 급식관리 실태)

  • 노희경;최여자
    • Korean Journal of Community Nutrition
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    • v.7 no.2
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    • pp.211-218
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    • 2002
  • This study was undertaken to assess the school flood service management and its perception by dietitians. Questionnaries were developed and answered by 162 dietitians in elementary schools in Chollanam-do. The duration of the flood service system was the longest in remote areas followed by rural and urban areas. The average number of persons served a day was 680 per dietitians. More than three schools were supervised by 52.4% of dietitians. Lack of facilities, including restrooms for the flood service personnel and storage compartments for convenience products were indicated. Regardless of the type of school flood service system, the dietitians pointed out that they urgency needed gas fryers, gas griddles and vegetable cutters, which would be helpful in preparing fried flood for the students. Despite the dietitians' eagerness to teach nutritional education, 80.9% of the respondents did not provide nutritional education to the students, because of the lack of class roomtime. It was suggested that the teaching nutritional education by dietitians was desperately needed for the improvement of health and the nutritional status of school children.