• 제목/요약/키워드: Distributed Data Analysis

검색결과 2,350건 처리시간 0.029초

브랜드 커피전문점의 서비스품질 및 고객 만족도의 관계: 중국 베이징 지역 중심으로 (Relationships among Service Quality of Brand Coffee Shop and Customer Satisfaction)

  • 마홍파;김영국
    • 아태비즈니스연구
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    • 제6권1호
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    • pp.45-57
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    • 2015
  • The purpose of this research is to explore the relationships among service quality's five factors(i.e., tangibles, reliability, responsiveness, empathy, and assurance) and customer satisfaction. The study used convenience sampling and selected certain consumers who visited coffee shop in BeiJing, China. Total 300 questionnaires was distributed and 18 unsuitable data were excluded for data analysis. These data were tested using SPSS 21.0. The results of this study are summarized as follows. First, the result of the relationship between coffee shops'service quality and customer satisfaction reveals that two of 5 service quality factors (i.e., assurance and empathy) had a positive effect on customer satisfaction only, and other service quality factors (i.e., tangibles, reliability, and responsiveness) had no positive influence on customer satisfaction. Limitations and future research directions of the study were also discussed.

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블록체인 기반 접근제어 기술 동향 (Analysis of Blockchain-based Access Control Technology)

  • 김승현;김수형
    • 전자통신동향분석
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    • 제34권4호
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    • pp.117-128
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    • 2019
  • As companies use increasing amounts of data more and more, people are more concerned about protecting their privacy. Many researches studies have been conducted with a to securely view of manage managing and share sharing private information securely using the Bblockchain technology. These studies have suggested a Bblockchain-based approaches to provide efficiency, scalability, data ownership, and systematic data lifecycles that were are the limitations of lacking in traditional access controls. More Sspecifically, these studies have introduced a new access control models, distributed hash tables, trusted execution environments, and hierarchical ID-based cryptographic mechanisms to provide reliable access control even in complex environments such as IoT Internet of Things. In this paperstudy, we present the criteria to for classifying the functional characteristics of the Bblockchain-based access control methods and derive the differentiateion between of each the several methods.

Intrusion Detection System for Home Windows based Computers

  • Zuzcak, Matej;Sochor, Tomas;Zenka, Milan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제13권9호
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    • pp.4706-4726
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    • 2019
  • The paper is devoted to the detailed description of the distributed system for gathering data from Windows-based workstations and servers. The research presented in the beginning demonstrates that neither a solution for gathering data on attacks against Windows based PCs is available at present nor other security tools and supplementary programs can be combined in order to achieve the required attack data gathering from Windows computers. The design of the newly proposed system named Colander is presented, too. It is based on a client-server architecture while taking much inspiration from previous attempts for designing systems with similar purpose, as well as from IDS systems like Snort. Colander emphasizes its ease of use and minimum demand for system resources. Although the resource usage is usually low, it still requires further optimization, as is noted in the performance testing. Colander's ability to detect threats has been tested by real malware, and it has undergone a pilot field application. Future prospects and development are also proposed.

Offline Shopping During the COVID-19 Pandemic: Between Need and Fear

  • USMAN, Hardius;PROJO, Nucke Widowati Kusumo;CHAIRY, Chairy
    • 4차산업연구
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    • 제2권2호
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    • pp.25-37
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    • 2022
  • Purpose - The purposes of this research are: (1) Building and testing a research model that integrates Theory of Reasoned Action (TRA) with fear, perceived risk, and health protocols; (2) Examining the impact of compliance with health protocols on consumer behavior when offline shopping. Research design, data, and methodology - The data collection uses the self-administered survey method, and the questionnaire is distributed online. A total of 504 Indonesian population aged 18 years old or more participate in this research. Data are analyzed using factor analysis, multiple regression, and multiple regression with interaction. Result - This study reveals several findings: (1) Attitude and subjective norm have a significant effect on offline shopping behavior; (2) fear has a direct and indirect effect on offline shopping behavior; (3) the effect of perceived risk on the intensity of offline shopping is determined by compliance with health protocols. Conclusion - This paper discusses the direct influence of attitudes and subjective norms on behavior. This research also integrates fear, perceived risk, and health protocol factors in TRA, which may not have been done much, especially in the COVID-19 pandemic context.

CROSS SECTIONAL ANALYSIS OF RESIDENTIAL WATER CONSUMPTION IN THE CITY OF RIYADH

  • Taher, Saud;Alsaati, Adnan
    • Water Engineering Research
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    • 제3권4호
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    • pp.269-278
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    • 2002
  • A cross sectional analysis for residential water demand was conducted to help understand and explain the spatial and temporal variations in per capita water use in the rapidly growing city of Riyadh, Saudi Arabia. The analysis was based on data previously collected from May 1983 to June 1984. 195 randomly selected households were distributed to three groups according to house condition, household income level, and social and cultural factors. The generated models using stepwise multiple regression indicated that plot size and number of males, females and children are the most significant independent variables. Although, coefficients of determination achieved for most of the developed models were low (0.2-0.5), the independent variables could still explain a part of the variations fur such a complex social and cultural structure.

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정보화 비용/이익 분석요인에 대한 인식도 연구 (Perception in IT Investment Cost/Benefit Analysis)

  • 이석준
    • Asia pacific journal of information systems
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    • 제13권2호
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    • pp.67-85
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    • 2003
  • This study was conducted to analyze Korean companie's perception in IT investment cost-benefit analysis(CBA), and to see if various user group's perception is different. Literature was reviewed to classify and define variables in IT CBA, and questionnaire was distributed to CEOs, CIOs, IT managers, and general managers in Korean companies. Respondent's priority ranking in IT CBA was shown to be tangible benefit, direct cost/intangible benefit, and indirect cost/risk. Data analysis showed that Korean companie's actual practice in CBA was generally aligned with their perception. User group's(Executives vs. mangers, and IT managers vs. general managers) perception was not shown to be statistically different. Survey result also showed that IT CBA was not well practiced in the companies although respondents perceive the analysis very important. These findings suggest that more education and practical experience is needed for Korean companies to perform IT CBA.

리더십이 조직동일시 및 조직몰입에 미치는 영향 (The Effect of Leadership on Organizational Identification and Organizational Commitment)

  • 신혜숙
    • 한국조리학회지
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    • 제23권3호
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    • pp.186-195
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    • 2017
  • The purpose of this research was to find the effect of leadership on organizational identification and organizational commitment in casino industry. Prepared questionnaires were distributed to 340 sample employees working in a domestic casino and then a total of 316 questionnaire were used for data analysis. This study was processed by carrying out internal consistency method, exploratory factor analysis besides frequency analysis, multiple regression analysis by using SPSS Win 19.0. The results of research are as follows: 1) transformational leadership had a positive effect on organizational identification. 2) Transformational leadership had a positive effect on affective commitment. 3) Transformational leadership and transactional leadership had a positive effect on continuance commitment. Therefore, this study suggests that transformational leadership is an important factor to raise the employees' organizational identification and affective commitment.

The Purchase Behaviors of Luxury Goods in Internet Shopping Malls according to Shopping Orientation

  • Shin, Su-Yun;Jang, Eun-Young
    • The International Journal of Costume Culture
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    • 제9권2호
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    • pp.113-124
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    • 2006
  • The purposes of this study were to investigate the perceived risks and the purchase behaviors for luxury goods in internet shopping malls according to the shopping orientation. 254 questionnaires were distributed from April 10 to May 9 in 2006. For data analysis, frequency, percentage, factor analysis, cluster analysis, chi-square tests were conducted. The results could be summarized as follows. (1) According to cluster analysis of shopping orientation, respondents were classified into five groups: pursuit of pleasure, pursuit of fashion, price consciousness, planned shopping, brand and store loyalty, time-saving and convenience. (2) There were not significant differences in the perceived risks according to shopping orientation. (3) There were not significant differences in purchase reasons and were significant differences in no-purchase reasons.

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해양스포츠 참여자의 즐거움 요인이 레크리에이션 전문화에 미치는 영향 (The Effects of Enjoyment Factors on Recreation Specialization of Water Sports Participants)

  • 남상백;권일권
    • 수산해양교육연구
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    • 제28권2호
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    • pp.356-365
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    • 2016
  • The purpose of this study was to verify the influences of sport enjoyment factors on recreation specialization of water sports participants. The study conducted a research survey through purposive sampling method after selecting 4 water sports center in Busan. 260 questionnaires distributed and 246 were selected as final valid sample by removing 14 questionnaires that have insufficient answers. Then data were analyzed through exploratory factor analysis, reliability analysis, correlation analysis, and multiple regression analysis using SPSS Window ver. 20.0. The results were as followings. First, the enjoyment factors have a positive effect on recreation specialization. Second, escaping from daily routine and improving technical skill dimensions of enjoyment factors have an influence on centrality of life. Third, improving technical skill dimension of enjoyment factors have a positive effect on past experience. Lastly, flow and improving technical skill dimensions of enjoyment factors have an influence on economic investment.

서핑참여자의 참여동기가 몰입경험 및 지속적 참여의도에 미치는 영향 (The Effects of Surfing Participants' Participation Motivation on Flow Experience and Continuous Participation Intention)

  • 권재윤;남상백;박상규;강희엽
    • 수산해양교육연구
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    • 제29권2호
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    • pp.492-502
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    • 2017
  • The purpose of this study was to verify the influences of surfing participants' participation motivation on flow experience and continuous participation intention. The study conducted a research survey through purposive sampling method after selecting 2 surfing center in Ganwon-do. 280 questionnaires distributed and 269 were selected as final valid sample by removing 11 questionnaires that have insufficient answers. Then data were analyzed through exploratory factor analysis, reliability analysis, correlation analysis, and multiple regression analysis using SPSS Window ver. 20.0. The results were as followings. First, participation motivation factors have positive effect on flow experience. Second, participation motivation factors have an influence on continuous participation intention. Third, flow experience have an influence on continuous participation intention. Fourth, leisure flow have an influence on continuous participation intention.