• Title/Summary/Keyword: Association Rules Analysis

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A Study on the Factors Influencing Job Satisfaction among Delivery Drivers of Online Hypermarket (온라인 대형마트 배송기사의 일자리만족도 영향 요인 연구)

  • Park, Sonhyo;Lee, Young-Min
    • The Journal of the Korea Contents Association
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    • v.22 no.4
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    • pp.665-676
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    • 2022
  • The e-commerce had been expanding in the distribution channels, recently. Then, COVID-19 and social distancing rules led to a surge of online hypermarkets volume. In this study, we examined workplace environments of delivery drivers, firstly. Second, this study was also designed to examine the influencing factors of the perceived working environments change on the job satisfaction, dealing with the recent surge of work. We analyzed 324 data using various ways like descriptive statistics, one-way analysis of variance, factor analysis, and hierarchical regression analysis. The analysis revealed that their job satisfaction was lower than the average score and their working time was too long. In addition, the changes of the workplace environments were divided into labor intensity change and working condition change, which all had a significant effect on job satisfaction. So we should devise some long-term and short-term plans to make the level of job satisfaction among delivery drivers high on workplace environments.

Weighted Association Rule Discovery for Item Groups with Different Properties (상이한 특성을 갖는 아이템 그룹에 대한 가중 연관 규칙 탐사)

  • 김정자;정희택
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.8 no.6
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    • pp.1284-1290
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    • 2004
  • In market-basket analysis, weighted association rule(WAR) discovery can mine the rules which include more beneficial information by reflecting item importance for special products. However, when items are divided into more than one group and item importance for each group must be measured by different measurement or separately, we cannot directly apply traditional weighted association rule discovery. To solve this problem, we propose a novel methodology to discovery the weighted association rule in this paper In this methodology, the items should be first divided into sub-groups according to the properties of the items, and the item importance is defined or calculated only with the items enclosed to the sub-group. Our algorithm makes qualitative evaluation for network risk assessment possible by generating risk rule set for risk factor using network sorority data, and quantitative evaluation possible by calculating risk value using statistical factors such as weight applied in rule generation. And, It can be widely used for new model of more delicate analysis in market-basket database in which the data items are distinctly separated.

Responsibility allocation by awareness of parties on dangerous goods in maritime transport (국제해상운송에서 위험화물 인지에 따른 당사자의 책임 분배에 관한 연구)

  • Lee, Yang-Kee;Choi, Ji-Ho;Shin, Hak-Sung
    • International Commerce and Information Review
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    • v.16 no.4
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    • pp.125-150
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    • 2014
  • The number of dangerous goods are increasing in maritime transport. As a result, a number of nations and international organizations are establishing or amending the rules of dangerous goods. There is necessarily the transport of dangerous goods like fuel and the importance of the definition and scope of the goods is increased. In addition, the responsibility between the parties is different with the notification of the goods and its awareness of transporters. In particular, responsible clauses of the transport rule show antithetical concepts between the scope of immunity and the responsibility of a shipper concerned with wether transporters aware. This research performs two works. First, this research analyzes the definitions and scope of dangerous goods through prior research. Second, this research suggests the necessary of united interpretation of the articles through a comparative analysis on judical decisions concerned with awareness of transporters to dangerous goods. Dangerous goods have a distinctive feature and that is why responsibility and immunity between parties should be differently interpreted with general rules. Parties have duty concerned with faults on general goods and the scope of duty between parties can be specifically made. However, if there is no specific articles concerned with responsibility between parties to dangerous goods, they could confuse the responsibility on duties concerned with risk. Therefore, this research suggests solutions and necessary of the united criteria for the articles to dangerous goods through analyzing precedent cases.

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Comparison and Improvement of Domestic and Foreign Regulations for the Prevention of Suffocation Accidents (국외 질식재해 예방규정 비교를 통한 국내 규정 개선방안)

  • Lim, Dae Sung;Lee, Seung kil;Kim, Chi-Nyon;Cho, Kee Hong;Yi, Gwang Yong
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.31 no.1
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    • pp.83-93
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    • 2021
  • Objectives: 'Confined space' was only defined in the Safety and Health Regulations as a place where oxygen deficiency and hydrogen sulfide must be dealt with at the time of the initial enactment (1982). The danger of fire and explosion were added in 2003. We will compare and review the regulations related to confined space work under the current safety and health rules alongside regulations in other countries and prepare a plan to improve the system through enhanced clarity and execution. Methods: In a comparison of systems for the prevention of suffocation in confined spaces in major countries (Germany, United States, Japan) different concepts of the definition of confined spaces in different countries apparently due to differences in each country's legal implementation system, accident analysis methods, the status of safety and health implementation in workplaces, the precautions against actual confined space work, and the definition of confined spaces were found to be not much different between Korea and the other foreign countries. Results: In the case of Germany and the United States, a confined space is defined as a contextual concept rather than a place, so more careful attention is needed from operators or enclosed space managers as it is often necessary to judge the actual workplace. In the case of Korea and Japan, the interior of the place is mainly defined as a place, especially in the case of Japan, which concentrates on oxygen deficiency and hydrogen sulfide poisoning. Conclusions: For measures to improve regulations on the prevention of suffocation accidents in Korea, I would like to propose three major measures to improve the system in the rules on domestic industrial safety and health standards. It is necessary to prepare and provide a guide to ensure that the 18 types of confined spaces currently defined as confined spaces are clearly understood by field management supervisors or workers.

An analysis of operation status depending on the characteristics of R&D projects in Sciences and Engineering universities (이공계 대학 연구과제 특성 별 운영 형태 현황)

  • Lee, Sang-Soog;Yoo, Inhyeok;Kim, Jinhee
    • Journal of Digital Convergence
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    • v.20 no.4
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    • pp.93-100
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    • 2022
  • This study aimed to understand the current status of science and engineering university(SEU) R&D operations depending on the research project characteristics(e.g., stages and characteristics), then provide implications for future university R&D support systems and related policies. Hence, an online survey targeting SEU R&D recipients was conducted between October 4th to November 5th, 2021. Analyzing 445 valid data using the Apriori algorithm, 16 association rules for R&D operation according to the research project characteristics show that regardless of research characteristics, SEU's R&D projects, particularly in applied research, were funded or operated under the leadership of government or public institutions. For basic research, individual researchers had a higher level of autonomy in determining research topics; yet, they had a short duration (3 years) and a unit of evaluation period of more than 3 years. These findings can be empirical evidence for revealing the relationship among various variables in operating SEUs' R&D.

A Study on the Countries Responsibility of Country-of-Origin Product of the Korea Customer (한국소비자의 수입원산지 제품의 국가별 반응도에 관한 연구)

  • Lee, Je-Hong
    • International Commerce and Information Review
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    • v.12 no.1
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    • pp.353-373
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    • 2010
  • This paper researched on countries effect of country-of origin product of the Korea customer. Also This study was analysis to purchase frequency and purchase place for products of the U.S.A, Japan, China, EU, and Chile in Korea market. That is to say, this study is reviewing on country image subject including country of origin. According to WTO rule, The rules of origin should be administered in a consistent, uniform, impartial and reasonable manner. The objective of this article is to explore the relationship between country of origin and consumer effect using empirical analysis. The country of origin was divided into country of design, assembly, and parts. A survey questionnaire was sent to 250 customer in Korea market, and 220 usable responses were obtained. The 213 samples are analyzed with the countries origin effect. Multiple regression results show that the U.S.A and Japan product are positively affected by the purchase effectiveness of Korea customer's. However, The EU, China and Chile products do not affect effectiveness in Korea market. This article contributes to a understanding of effects of country-or-origin. When the nation image has been made, marketing approaches considering both image of country of manufacture origin and motivational focus can be utilized simultaneously.

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A Critical Analysis on the Architectural Education in Korea from the view of International Accrediting Criteria (국제적(國際的) 건축(建築) 전문교육(專門敎育) 인증기준(認證基準)에서 본 한국(韓國) 건축교육(建築敎育)의 현황분석(現況分析))

  • Ryu, Jeon-Hee;Rieh, Sun-Young
    • Journal of architectural history
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    • v.8 no.3 s.20
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    • pp.75-89
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    • 1999
  • Under the WTO system, global standardization of professionalism in architecture practice calls for transformation of curriculum in architectural education in Korea. This paper compares the curriculum standards of international accrediting authorities such as NAAB and RIBA based on UIA accord which defines fundamental knowledge and abilities of an architect. As a result this paper extracts 51 achievement oriented criteria of architectural education in Korea. It can be categorized as communication, design, cultural context(history and theory, human behavior and social aspects), technical systems(structural systems, environmental control systems, construction material and assemblies) and practice(project process, project economics and business management, laws and regulations). Based on this recommended Korean curriculum standards, current curriculum is analyzed focusing on the 5 architectural programs in Seoul. Through this analysis, it became clear that some area - social and economic aspects in architecture, sustainability in architecture, understanding and selection of construction material, assemblies and environmental control system, recycling of existing building, professional liability, professional rules of conduct, project economics and project management - need to be covered and emphasized to meet the international standards in professional education in architecture. The result in this paper will be used as a basic data in the process of finding the direction of restructuring curriculum for professional architectural education in Korea.

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The Study on Consciousness and Attitude about Wedding Ceremony of Wedding Vender (예식업 종사자의 전통혼례에 대한 의식과 태도 연구)

  • Kim, In-Ok
    • Korean Journal of Human Ecology
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    • v.17 no.6
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    • pp.1181-1195
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    • 2008
  • This study based on Sa rye pyun ram(四禮便覽) by Lee Jae which are Chosun Dynasty book about the rules in a wedding ceremony. And the research examine into the understand how to the procedure, the true meanings about korea traditional wedding and general opinion of wedding custom. The instrument is the questionnaires, which is analyzed finally through data processing with 129 of wedding venders. The data analyze by making use of SPSS program were frequency analysis, ANOVA, $x^2$-test, pearson's correlation analysis. The summary of a result is as follows. First, the wedding awareness of wedding venders about Eou hon(議婚) is on a high level but Nab chae(納采) is low. Second, wedding venders are knowing with "Hon suh ji(letter), four season cloth, blue-red satin, shell goods" in a Nab peau(納幣) and with "jujube, beef, chicken, Gu jel pan(accompaniment to a drink), alcohol in a Peau back(幣帛). Third, wedding venders are answered that acceded to "Peau back" and "traditional wedding ceremony' but needed no "gifts & cloths for wedding". Forth, the understanding of wedding procedure (婚禮節次) is on a low, especially Bon ray(本禮).

Analysis of the effects of the hysteretic property on the performance of sequential associative neural nets (계열연상능력에 미치는 히스테리시스 특성에 대한 해석)

  • Kim, Eung-Soo;Lee, Sang-Wook
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.16 no.3
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    • pp.448-459
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    • 2012
  • It is important to understand how we can deal with elements for the modeling of neural networks when we are investigating the dynamical performance and the information processing capabilities. The information processing capabilities of model neural networks will change for different response, synaptic weights or learning rules. Using the statistical neurodynamics method, we evaluate the capabilities of neural networks in order to understand the basic concept of parallel distributed processing. In this paper, we explain the results of theoretical analysis of the effects of the hysteretic property on the performance of sequential associative neural networks.

The Development of Korean Family Functioning Scale (한국형 가족기능도 척도 개발 연구)

  • 최희진;유영주
    • Journal of Families and Better Life
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    • v.21 no.3
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    • pp.15-28
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    • 2003
  • The purpose of this study was to develop a family functioning scale that is suitable for Korean families. The data for this study were obtained from a survey on a sample of 350 mothers of school-age children, who were living in Seoul, Kyunggi-do, and other cities of Korea. The major findings ate as follows; 1) Through the item discrimination test, 63 of the 77 items were found to be significant, thus deemed acceptable. The level of discrimination indices of the 63 items ranged from .38 to .84. 2) A factor analysis was conducted on the 63 items. Six different factors (Emotional Support, Family Intimacy, Respect for Autonomy, Communication, Family Rules, Time Spent Together) emerged for 37 items. The six factors accounted for 56.51% of total variance. 3) A multiple regression analysis was conducted to reduce the number of items, and the final 36 items were selected for the Family Functioning Scale. 4) The reliability measured by the internal consistency of the 36 items was high (Cronbach's a =.93). 5) The Family Functioning Scale was found to have a significant correlation with FACESIII(r=.80) as well as with FAD(r=.78).