• Title/Summary/Keyword: Peer Selection

Search Result 72, Processing Time 0.029 seconds

Block Selection Strategy for P2P Streaming (P2P 스트리밍을 위한 블록 선택 전략)

  • Kim, Heung-Jun;Son, Sei-Il;Lee, Kwang-Seok
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.12 no.12
    • /
    • pp.2179-2187
    • /
    • 2008
  • The P2P technology has been widely used to distribute files efficiently, and its use in streaming is rapidly increasing. P2P streaming has issues about startup-delay, scalability, and real-time playback, however, what affects these factors has not been researched sufficiently. This paper suggests a buffering model for progressive download within mesh-based P2P system, which corresponds to downloading and playing the content at the same time. It is used to analyze PDF(Playback Deadline First), Rarest algorithms which are block-selection strategies of P2P streaming and proposes a mixed selection of them. The mixed block selection strategy dynamically performs different strategies based on whether the blocks to be played are received or not. In consequence, it enhances the QoS of streaming in a single peer point of view, as well as improving block distributions in an overlay network.

Mothers' Perceptions on Preschool Children's Food Preference, Efforts in Improving Food Intake and Their Beliefs in Food Selection (어머니가 인지한 유아의 식품기호도 형성 요인, 식사 섭취 개선 노력과 식품선택 신념에 관한 연구)

  • Jeong, Young-Hye;Yoon, Jin-Sook;Park, Dong-Yean
    • Korean Journal of Community Nutrition
    • /
    • v.11 no.6
    • /
    • pp.714-724
    • /
    • 2006
  • In an attempt to investigate mothers' perceptions of factors affecting preschool children's food preferences, their policy improving food intake and belief in food selection, in-depth interviews with 30 mothers who had preschool children were conducted in Daegu and Busan. The interviews were tape-recorded and the contents of interviews were analysed by researchers. Most mothers and children liked meats. It was found that children usually disliked vegetables such as onions, carrots, and green onions. Mothers perceived that many factors affected their children's food preferences: mothers' and fathers' food preferences, food offering at meals. mothers' food intake during pregnancy, children's food intake during weaning period, heredity peer pressure, and advertisements on television. Mothers made efforts to improve childrens food intakes in many ways: change of cooking method, emphasizing function of nutrients and food for health, conciliation and enforcement, and comparison to other children. The most affecting belief for mothers in food selection was family members' food preference. Health, balance in nutrient intake degree of food processes food additives, chemicals, convenience, diversity, and economy were also important beliefs to select food. Convenience was especially the primary belief in choosing and preparing children's snacks. Mothers offered frozen dumplings and meat, instant noodles, tuna, and ham for snacks for convenience. These results showed that mothers understood many aspects affecting children's food preference tried to improve children s food intakes and had several beliefs in food selection. We concluded that it is necessary to give information for mothers to make healthy snacks in a short time and chance to learn cooking skills.

Identity Formation and Self-Reflection Strategies in the Development of Apparel Design ePortfolios

  • Seifert, Christin;Chattaraman, Veena
    • Fashion, Industry and Education
    • /
    • v.14 no.2
    • /
    • pp.60-69
    • /
    • 2016
  • Visual literacy, a key element of a design portfolio, is achieved by communicating a consistent visual aesthetic with respect to design elements, design principles and individual style. Yet, students often feel challenged in articulating their personal aesthetic or design philosophy in order to create a unifying design identity within a body of artifacts. This paper shares some best practices on overcoming this challenge through students' engagement in self-reflection and identity formation processes. The implemented innovative strategy in a senior-level portfolio development course for apparel designers involved four different phases: 1) one-on-one meetings to self-reflect on previous design work, 2) selection and revision of artifacts, 3) peer-review and critiques of revised portfolio artifacts, and 4) development of a final ePortfolio to showcase a unified design identity. It was evident that recording students' initial self-reflection in the form of a metacognitive oral report encouraged and motivated identity development in their portfolio. Further, students expressed their satisfaction in the ability to participate in the selection process of artifacts by self-reflecting about what they wanted to highlight about themselves and why. Overall, student outcomes from this strategy exceeded expectations and the portfolios developed were successful in creating a cohesive design identity.

The Significant Decisions in Cold Chain Logistics

  • Sung-Ho, RYU
    • East Asian Journal of Business Economics (EAJBE)
    • /
    • v.11 no.1
    • /
    • pp.41-51
    • /
    • 2023
  • Purpose - The prior literature has shown that there is a lack of a complete assessment of the key decisions in cold chain logistics. Such a study is required to offer recommendations for research in this expanding but under-researched topic with potentially significant management ramifications. Research design, Data, and methodology - The current researcher accumulated peer-reviewed sources from databases to augment each chosen study's validity. Selection varied between seminal works and much of the existing literature. The selection process was consistent with using a content checklist that established the inclusion and exclusion criteria. Result - The research findings indicate total five solutions regarding better decision in Cold Chain Logistics (CCL), such as (1) Pricing Decision in Cold Chain Logistics, (2) Decision on Temperature Control Decision in Cold Chain Logistics, (3) Supply Chain Network Design in Cold Chain Logistics, (4) Decision on Minimizing Inventory in Cold Chain Logistics, (5) Decision on Logistics Distribution. Conclusion - Stability of a cold chain should be maintained from manufacture or via logistical components and cold logistics products are susceptible to several variables, such as temperature, and degradation can easily harm food supply, product prices, and human health. Product safety infractions substantially impact human health, among other losses linked with a functioning CCL.

Sociocultural Influence of Appearance and Body Image on Appearance Enhancement Behavior of Female College Students (여자대학생의 외모에 대한 사회문화적 영향과 신체이미지가 외모향상추구행동에 미치는 영향)

  • Kim, In-Hwa
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.38 no.6
    • /
    • pp.810-822
    • /
    • 2014
  • This study investigated the effects of sociocultural influence and body image on appearance enhancement behavior (facial management, clothing selection, and weight/figure management). For data collection, a questionnaire was administrated to 378 female college students in Seoul and Gyeonggi-do from May $23^{rd}$ to June $10^{th}$ 2013. A SPSS 18.0 statistics package was used to analyze data along with descriptive statistical analysis, frequency analysis, factor analysis, reliability analysis, and regression analysis and frequency analysis. The results were as follows. First, sociocultural influences were divided into three factors: media influence, peer influence, and parental influence. Overall sociocultural influences had positive effects on appearance enhancement behavior. Second, body image was divided into: appearances-management, body-satisfaction and body confidence. Sociocultural influences had a significant effect on overall body image. Third, body image positively affected overall appearance enhancement behavior.

Dynamic Peer Selection Scheme for Allocating Proxy-Server on Pure P2P Network Environments (순수 P2P 네트웍 환경에서 프락시 서버 할당을 위한 동적 피어 선정 기법)

  • 김영진;김문정;엄영익
    • Proceedings of the Korean Information Science Society Conference
    • /
    • 2002.10e
    • /
    • pp.655-657
    • /
    • 2002
  • 현재 네트웍 보안을 위한 방화벽과 유일한 공용 IP 주소 부족 문제를 해결하기 위한 NAT 사용이 일반화되고 있다. 그러나 이러한 환경 안에 있는 사용자들은 외부 피어의 연결을 받지 못하여 제한된 서비스만을 받고 있기 때문에, 순수 P2P 환경에서 피어들간의 연결을 방해하는 가장 큰 요소가 되고 있다. 본 논문에서는 이러한 문제점을 해결하기 위해P2P 환경에서 방화벽/NAT가 아닌 피어들 중 네트웍 트래픽이 많지 않은 피어를 동적으로 선정하여 프락시 서버를 할당한 후 피어들의 통신 매개체로 사용하는 기법을 제안한다. 이 제안기법은 모든 운영체제에서 사용 가능하고, 양방향 통신을 가능하게끔 해주며, 네트웍 트래픽을 여러 피어들 에게 분산키는 장점을 갖고 있다. 차후 파일 전송, 화상 채팅 등의 여러 가지 서비스를 사용하는데 유용한 기법이 될 것이다.

  • PDF

SINGLE OBJECTIVE LAYOUT DESIGN OF USER INTERFACE COMPONENTS WITH MULTIPLE QUALITATIVE FACTORS

  • Peer, S.K.;Sharma, Dinesh-K.
    • Journal of applied mathematics & informatics
    • /
    • v.14 no.1_2
    • /
    • pp.353-363
    • /
    • 2004
  • The purpose of this paper is to present a model to design the layout of the user interface components that handles many numbers of qualitative factors. An alternate rating system is also proposed for the closeness relationship ratings between the various pairs of components evaluated by using GOMS (goals, operators, methods and selection rules) technique. The proposed model is applied to the design of the part of the user interface in order to obtain the best layout of the components. The results of the proposed model are compared with that of an existing model, which handles single qualitative factor applied to obtain the layouts of user interface components.

Advances in the Preparation of Soy Protein and Lecithin Ingredients for Tomorrow's Foods

  • Beery, Kenneth E.
    • Proceedings of the Korean Society for Food Science of Animal Resources Conference
    • /
    • 2002.05a
    • /
    • pp.29-38
    • /
    • 2002
  • Today's food technologist is receiving increasingly pointed directions in the “selection of”and often “minimum amounts of”ingredients to use in the development of new food products. This increasing emphasis by marketing on “label”claims is real and gaining momentum in most market places. Thus, the development of functional foods that are providing customers with new and distinct nutritional choices. The driving force for the increased direction of the food technologist is that many governments are now allowing health related label claims on food products. These health claims are a result of very clearly and focused research that shows known nutritional benefits. The regulatory environment is well focused on the results of this peer reviewed research. In the USA, FDA has allowed several opportunities for health claims including fiber, soy protein and choline. This presentation will focus on only two of many functional ingredient options-the soy proteins and lecithin(choline).

  • PDF

Discovery of promising business items by technology-industry concordance and keyword co-occurrence analysis of US patents. (기술-산업 연계구조 및 특허 분석을 통한 미래유망 아이템 발굴)

  • Cho Byoung-Youl;Rho Hyun-Sook
    • Journal of Korea Technology Innovation Society
    • /
    • v.8 no.2
    • /
    • pp.860-885
    • /
    • 2005
  • This study relates to develop a quantitative method through which promising technology-based business items can be discovered and selected. For this study, we utilized patent trend analysis, technology-industry concordance analysis, and keyword co-occurrence analysis of US patents. By analyzing patent trends and technology-industry concordance, we were able to find out the emerging industry trends : prevalence of bio industry, service industry, and B2C business. From the direct and co-occurrence analysis of newly discovered patent keywords in the year, 2000, 28 promising business item candidates were extracted. Finally, the promising item candidates were prioritized using 4 business attractiveness determinants; market size, product life cycle, degree of the technological innovation, and coincidence with the industry trends. This result implicates that reliable discovery and selection of promising technology-based business items can be performed by a quantitative, objective and low- cost process using knowledge discovery method from patent database instead of peer review.

  • PDF

The Types and Management of Differentiating Consumption depends on the social class of Korean consumers

  • LEE, Jaemin
    • Journal of Wellbeing Management and Applied Psychology
    • /
    • v.2 no.1
    • /
    • pp.35-39
    • /
    • 2019
  • This paper presents two social and academic studies on the boundary between cultural production and consumption. The first line of the study on cultural omnivore analyzes the choice of heterogeneous audiences in the face of various cultural offerings. The second line is a study of market categories, which analyzes the responses of peer audiences to objects with different levels of category code compliance. As such, this paper developed a heterogeneous audience model to evaluate objects of different types. This allows us to consider two dimensions of cultural preference: diversity and orientation of selection. To this end, this paper proposes a new analytical frame work to map consumption behavior on these two dimensions. The results suggest that one type of target that values diversity and transformation is particularly resistant to those that span boundaries. We test this argument in the analysis of two large data sets on film and restaurant reviews. Overall, our findings can extend beyond cultural consumption. Outline variability of contextual individuals or individuals in the same situation can cross cultural boundaries even if they are not intentionally pursuing such hybridism.