• Management Science and Financial Engineering
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• 제15권1호
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• pp.81-96
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• 2009

Data mining, specially clustering is one of exciting research areas for ant based algorithms. Ant clustering algorithm, however, has many difficulties for resolving practical situations in clustering. We propose a new grid-based ant colony algorithm for clustering of data. The previous ant based clustering algorithms usually tried to find the clusters during picking up or dropping down process of the items of ants using some stigmergy information. In our ant clustering algorithm we try to make the ants reflect neighborhood information within the storage nests. We use two ant classes, search ants and labor ants. In the initial step of the proposed algorithm, the search ants try to guide the characteristics of the storage nests. Then the labor ants try to classify the items using the guide in-formation that has set by the search ants and the stigmergy information that has set by other labor ants. In this procedure the clustering decision of ants is quickly guided and keeping out of from the stagnated process. We experimented and compared our algorithm with other known algorithms for the known and statistically-made data. From these experiments we prove that the suggested ant mining algorithm found the clusters quickly and effectively comparing with a known ant clustering algorithm.

• 한국조리학회지
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• 제20권5호
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• pp.71-75
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• 2014

The purpose of this study is to verify antecedent variables that affect emotional labor. The results are as follows. First, display rules positively affected deep acting and negatively affected surface acting. Second, customer contact time positively affected deep acting but did not affect surface acting. Third, the interaction between display rules and customer contact time did not have significant effects on surface acting but negatively affected deep acting. The implications based on these results are as follows. First, theoretically, this study extends the range of leading variables that affect emotional labor and verifies the moderation effects between these variables. Next, practically, this study suggests that presenting harmonious criteria with regards to display rules and customer contact time that fit well into the concept of food service company is a very useful tool to manage emotional labor of the employees. The limitation of this study is that the causal relationship between variables demonstrated in this study cannot be generalized due to convenience sampling and cross sectional research.

• 산학경영연구
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• 제2권
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• pp.141-169
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• 1989

Most of the theories of collective bargaining outcomes start with a set of economic variables. The economic constraints, pressures, and incentives influence the bargaining power relationship between labor union and employer. In this paper, the critical macro and micro economic variables that need to be considered in analyzing the economic context of collective bargaining power relationship is outlined. The focus is on the role that economic forces play in shaping the results of bargaining, that is the outcome of negotiations. In this study, the elasticity of the demand for labor is introduced as one of the most important economic aspects that influence bargaining power. Unions will be most successful in increasing wages when they enjoy an inelastic demand for labor. If the demand for labor is not naturally inelastic, some institutional arrangement for "taking wages out of competition" must be sought. Inflation, business cycle, and income policy are influential in shaping both parties' goals and expectations as well. In addition to the analysis of the economic variables, the nature of power is diagonized with some introductory notions about its care and feeding before proceeding to the details of the above issues.

• 가정과삶의질연구
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• 제20권6호
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• pp.25-36
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• 2002

This study was carried out to investigate women's labor in the private and public spheres in traditional societies from the Three Kingdom Period to the Chosen Dynasty. This study is based on review of historical literature. It was found that women in the traditional societies from the Three Kingdom Period to the Chosen Dynasty worked not only in private places, such as in households as housewives, but also as slaves in public places such as government offices. Also, women as housewives worked not only to fulfill private needs, but also to pay taxes. In this sense, women in traditional societies participated in labor force in the public arena, not unlike women in industrialized societies who participate in labor market. This research provides a piece of counterevidence against the general belief that women in traditional societies only conducted private housework at home. Therefore this study suggests that we need to rethink gender roles in traditional societies.

• 가정과삶의질연구
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• 제15권4호
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• pp.369-386
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• 1997

The major purpose of this study is to investigate the urban husbands' participation in household labor and to predict the amount of their participation in it. The major findings of this study are as follows; 1. Husbands participate in household labor(i.e. the housework and the child care)on the average for 114 minutes a weekday and for 240 minutes a holiday. They participate most in the child care among all the household tasks. The employed wives' husbands participate more in the housework than nonemployed wives' husbands. 2. Husbands' paid work time is the storngest predictor of their participation in household labor on weekdays but the age of the youngest child is the strongest one on holidays to both employed wives' and nonemployed wives' husbands. The implication of these findings for husbands' participation in household labor and future research were discussed.

• 산업융합연구
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• 제5권2호
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• pp.99-120
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• 2007

The purposes of this paper are to investigate mismatch in labor supply and demand on small and medium industries in Suwon region by conducting surveys to potential employees and employers, and to suggest alternative policy means to eliminate those mismatch conditions. Reasons of occupation change, difference in terms desired in occupation between potential employee and employer, understanding in mismatch, and measure of labor shortage by firms are analyzed in this paper. The report's recommendations to eliminate labor mismatch in small and medium industry are categorized into two groups: working conditions and occupation competence. Narrowing the working conditions gap, utilization of idle workers, establishment of flexible wage system are suggested to eliminate labor condition mismatch. In addition, potential employees need to meet working requirements by building up both wide use ability, occupation specific ability, and industry specific ability.

• 한국융합학회논문지
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• 제9권7호
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• pp.41-46
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• 2018

본 연구는 대한민국 정부가 운영하는 의견수렴 및 고충처리 전산망인 국민신문고(http://www.people.go.kr)'의 고용노동부 민원 정책 게시판의 의견을 통해 고용노동부에서 시행하는 직업훈련, 노사관계, 산업안전, 임금정책, 근로기준법 등의 민원 정책에 대한 국민적 의견을 수렴하여 분석하였다. 본 연구는 R프로그램 빅데이터 기법을 이용하여 데이터 시각화, 빈도 분석, 연관분석 등을 실시하였으며, 연구결과는 다음과 같다. 첫째, 한국의 복잡한 임금구조와 노사 간에 인식부족 등으로 임금개념의 불일치, 노사갈등 이 많은 민원요소로 발견되었다. 둘째, 최근 최저임금의 파격적 인상으로 인한 자영업자 및 근로자의 경제적 공황상태 등으로 기인한 각종 민원이 발생하고 있다. 셋째, 생산직 등 제조 분야 등의 영세한 사업장의 안전의식의 부재로 인한 산업재해가 끊임없이 발생하고 있으며, 일 가정 병립을 위한 제도적 뒷받침이 많이 부족한 것으로 나타났다.

• 디지털융복합연구
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• 제15권4호
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• pp.251-258
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• 2017

본 연구의 목적은 노인요양시설 종사자들을 대상으로 내부마케팅요인이 조직 구성원의 직무만족, 감정노동과 조직몰입에 미치는 영향을 분석하는 것이다. 구조화된 설문조사를 통해 자료를 수집 하였으며, 최종분석 대상자는 경남지역과 경북지역의 노인요양시설에 근무하는 191명이고 연구모형의 가설검증은 AMOS 18.0을 이용하여 경로분석을 시행하였다. 본 연구의 주요 결과는 다음과 같다. 내부마케팅 요인이 직무만족에는 내부커뮤니케이션, 경영자지원만 영향을 미쳤으며, 감정노동에는 경영자지원만, 조직몰입에는 내부커뮤니케이션과 경영자지원이 영향을 미치는 걸로 나타났다. 본 연구결과의 시사는 장기요양시설 종사자들의 조직몰입 성과를 높이기 위해서는 바로 내부마케팅 역량 강화가 아니라 1차적으로 직무성과를 높여야 하며, 2차적으로 직무성과를 높이기 위해서는 종사자들의 직무만족과 감정노동에 대한 서비스 질의 변인을 좀 더 다양화한 연구가 필요하다.

• Journal of Construction Engineering and Project Management
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• 제2권2호
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• pp.18-27
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• 2012

Despite the rapid development in the construction industry due to the changing new technologies, many projects still fail to meet target deadlines. Shortage in manpower and skilled laborers is one of the main reasons for such delays. Markets with high economic growth and economic expansion (such as Gulf Countries in the Middle East) may have pronounced labor the shortages. Labor subcontracting practices are used sometimes to increase production rates and meet project deadlines. This paper explains and analyses labor subcontracting practices currently being used in many places around the world (and especially in the Gulf Countries) and in particular defines a maximum overtime rate for laborers in the laborer-subcontracting method ensuring that the contractor gains both the time saved during overtime and also reduces the cost per unit produced. The mathematical model used formalizes a closed-form equation for overtime pay in similar situations and as such can be applicable worldwide. Data was collected from representative projects that employed such practices from various trades. Validation of the model and formula has been tested successfully by analyzing historic data. The results prove that contractors often do not reach the optimum use of their practices resulting in a higher cost per unit. The presented model and the analysis should be of interest to many contractors currently involved in the practice or considering its use and to those who wish to find new methods that would help in eliminating as much wastes as possible by allocating their resources in the most efficient way.

• 한국건설관리학회논문집
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• 제20권2호
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• pp.37-43
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• 2019

주당 최장 법정 근로시간을 단축하는 내용의 '근로기준법 개정안'이 통과됨에 따라 근로시간 단축에 따른 근로자 소득감소, 공사기간 연장, 공사비 증가 등 다양한 문제가 발생하고 있다. 특히 다른 산업과 비교할 때, 생산성을 중시하는 건설 프로젝트의 경우 공종에 따라 주 52시간 근무제에 따른 영향의 정도가 더 클 것으로 예상되나 이에 대한 연구는 미흡한편이다. 이에 본 연구에서는 NATM 터널 공사를 대상으로 표준품셈 기반의 표준공정과 굴착 사이클 타임 그리고 공종별 단위 공기를 제시하고, 이를 통해 주 52시간 근무 적용에 따른 실제 작업조의 변화와 이에 따른 표준 공기 및 공사비의 영향을 분석하였다. 분석결과 굴착 공기와 총 공기는 각각 20%, 8.9% 증가하였으나, 굴착공사비와 총 공사비는 오히려 각각 1.2%, 0.5% 감소하는 것으로 확인되었다.