• Title/Summary/Keyword: 결정성 분석

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Analyzing vocational outcomes of people with hearing impairments : A data mining approach (청각장애인의 취업결정요인 분석 연구 -데이터마이닝 기법(Exhaustive CHAID)의 적용)

  • Shin, Hyun-Uk
    • Journal of Digital Convergence
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    • v.13 no.11
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    • pp.449-459
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    • 2015
  • The purpose of this study was to examine demographic, human capital and service factors affecting employment outcomes of people with hearing impairments. The total of 422 individuals (age from 20 years to 65 years) with hearing impairments were collected from the Panel Survey of Employment for the Disabled from Korea Employment Agency for the Disabled. The dependent variable is employment outcomes. The predictor variables include a set of personal history, human capital and rehabilitation service variables. The chi-squared automatic interaction detector (CHAID) analysis revealed that the status of the national basic livelihood security played a determining role in predicting the employment of people with hearing impairments. Also, it was found that the three factors of the status on the national basic livelihood security, needed help about activities of dailey living, licenses & employment service factors created bigger synergy effect when they inter-complemented one another.

Relationship Between the Airline Cabin Crew Images and the Airline Employment Decisions (취업준비 과정에서 승무원 이미지와 취업결정과의 관계)

  • Kim, Young-Jin;Lim, Yeon-Woo
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.2
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    • pp.681-688
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    • 2017
  • This study examined the relationship between the cabin crew images and the airline employment decisions. The aim was to target college students to prepare for employment in airlines. The survey was conducted to achieve the research objectives using SPSS 20.0 based on 342 questionnaires. In addition, frequency analysis, factor analysis, reliability analysis, Correlation Analysis, and regression analysis were performed. The cabin crew image of the customer orientation and fashion affects the airline employment decisions of the students. The cabin crew image of professional expertise and appearance affect the airline employment decisions of the trust. The cabin crew image of customer orientation, fashion, and appearance affects the airline employment decisions of the students. Overall, the job must first be an understanding of the airline and it is necessary to consider a career professional approach. In addition, there is a need to recognize human services that emphasize the customer orientation factors of the crew.

A Model of English Part-Of-Speech Determination for English-Korean Machine Translation (영한 기계번역에서의 영어 품사결정 모델)

  • Kim, Sung-Dong;Park, Sung-Hoon
    • Journal of Intelligence and Information Systems
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    • v.15 no.3
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    • pp.53-65
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    • 2009
  • The part-of-speech determination is necessary for resolving the part-of-speech ambiguity in English-Korean machine translation. The part-of-speech ambiguity causes high parsing complexity and makes the accurate translation difficult. In order to solve the problem, the resolution of the part-of-speech ambiguity must be performed after the lexical analysis and before the parsing. This paper proposes the CatAmRes model, which resolves the part-of-speech ambiguity, and compares the performance with that of other part-of-speech tagging methods. CatAmRes model determines the part-of-speech using the probability distribution from Bayesian network training and the statistical information, which are based on the Penn Treebank corpus. The proposed CatAmRes model consists of Calculator and POSDeterminer. Calculator calculates the degree of appropriateness of the partof-speech, and POSDeterminer determines the part-of-speech of the word based on the calculated values. In the experiment, we measure the performance using sentences from WSJ, Brown, IBM corpus.

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Analyzing a Differentiation of IT Governance Decision Structure: Application of IT Strategic Grid Framework (IT 거버넌스 의사결정 구조의 차이 분석: IT 전략 그리드 프레임워크 적용)

  • Lee, Bong-Gyou;Choi, Dong-Jin;Lee, Young-Hee;Oh, Ik-Jin
    • The KIPS Transactions:PartD
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    • v.15D no.2
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    • pp.285-296
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    • 2008
  • The purpose of this paper is to examine the IT governance decision structure of the four strategic modes of IT strategy grid, and compare and analyze the differences in the IT governance decision structure of companies that produce superior results and those that produce inferior results. The survey method was used for this paper, and data from a total of 209 companies that were listed on the KOSDAQ 300 and KOSPI 200 were used for the analysis. The results show that each mode has a different IT governance decision structure from the others, and the IT governance decision structure of companies with high results and those with low results are also different for each mode. The results of this paper are significant in that, for each mode, it presents the decision structure framework for promoting desirable behavior of companies carrying out IT governance.

Hospital Food Service Systems in the United Kingdom With Special Reference to Patient Satisfaction

  • 홍완수
    • Journal of the Korean Home Economics Association
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    • v.32 no.1
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    • pp.189-198
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    • 1994
  • 본 연구는 영국의병원 급식체계를 분석하고 그에 대한 객관적, 주관적 평가를 시도하는데 목표를 두고 있다. 영국 보건성의 지원하에 12개 병원에 대한 급식체계를 비용편익 분석과 생산성 측정이라는 객관적 기법, 그리고 Indepth-interview 및 Self-Administered Qestionnaire 라는 주관적 방법을 통해 분석하였다. 이 중 본논문에서 다루는 것은 환자 만족도와 이에 영향을 미치는 병원 급식 체계의 결정요인 부분이다. 제1단계 연구에서는 급식대상 환자들에 대한 표본추출을 통해 설문조사를 실시하였다. 분석결과 환자의 인구통계학적, 정서적 변수가 환자의 만족도에 가장 큰 영향을 미치는 요소로 나타났다. 각병원에 대한 객관적 자료를 이용한 2차 희귀분석 결과 인적자원요소와 시스템요소로 대별된 독립변수 요인군종 어느 변수도 0.05(p) 수준에서 유의미하지 않은 것으로 밝혀졌다. 환자의 만족도는 병원 급식체계에 기준한 객관적인 결정요인에 의해 설명되어지지 않고 오히려 환자 자신의 변수에 의해 결정되어짐을 알수 있다. 본논문이 시사하는 바는 급식체계에 대한 평가에 있어 이론적 모형과 변수의 선정이 수정될 필요가 있다는 점과 방법론적 차원에서 평가대상 급식시스템의 유형상 특성이 고려되어야한다는 점이다.

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Using a Hybrid Model of DEA and Decision Tree Algorithm C5.0 to Evaluate the Efficiency of Ports (DEA와 의사결정 나무(C5.0)의 하이브리드 모델을 사용한 항만의 효율성 평가)

  • Hong, Han-Kook;Leem, Byung-hak;Kim, Sam-Moon
    • The Journal of the Korea Contents Association
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    • v.19 no.7
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    • pp.99-109
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    • 2019
  • Data Envelopment Analysis (DEA), a non-parametric productivity analysis tool, has become an accepted approach for assessing efficiency in a wide range of fields. Despite of its extensive applications, some features of DEA remain bothersome. For example DEA is good at estimating "relative" efficiency of a DMU(Decision Making Unit), it only tells us how well we are doing compared with our peers but not compared with a "theoretical maximum." Thus, in order to measure efficiency of a new DMU, we have to develop entirely new DEA with the data of previously used DMUs. Also we cannot predict the efficiency level of the new DMU without another DEA analysis. We aim to show that DEA can be used to evaluate the efficiency of ports and suggest the methodology which overcomes the limitation of DEA through hybrid analysis utilizing DEA along with C5.0. We can generate classification rules C5.0 in order to classify any new Port without perturbing previously existing evaluation structures by proposed methodology.

The Quantification of Considerations related with Decision-making in Ground Operation : Focusing on Evaluating Avenues of Approach in IPB (지상작전과 연관된 의사결정 고려요소의 정량화 방안 : 전장정보분석의 접근로 평가요소를 중심으로)

  • Han, Seung Jo;Lee, Seungmin
    • Convergence Security Journal
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    • v.19 no.2
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    • pp.129-136
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    • 2019
  • The main tasks of commander and staffs in ground operations are a continuation performing the process of making decisions in various situations. Since the current decision-making process is largely dependent on qualitative methods, it is difficult to integrate with the decision-making tools associated with the 4th Industrial Revolution. The purpose of this study is to suggest the process of deriving the relative importance of the evaluation factors using the AHP with focusing on assessing the avenues of approach in IPB related to the ground operation plan. The most important aspect of IPB is the evaluation of the avenues of approach. Evaluation factors include target accessibility, observation and seasons, concealment and cover-up, ease of maneuverability, and ease of transition to adjacent access roads. The existing methods are the comparison method with evaluation factors and the analysis with the advantages and disadvantages. However, it has been criticized that they regard evaluation factors as equal importance. The results show that target accessibility has the highest score related with priority when considering the criteria.

우리나라 최초공모주(最初公募株)의 과도한 저가발행(低價發行)에 대한 원인분석과 개선방향

  • Jeong, Seong-Chang
    • The Korean Journal of Financial Management
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    • v.9 no.2
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    • pp.149-168
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    • 1992
  • 본 연구의 목적은 우리나라에서 발행가격 결정을 발행회사와 주간사회사에게 완전 자율화 하였음에도 불구하고 우리나라의 최초공모주(最初公募株)는 왜 이처럼 과도하게 저가발행(低價發行)되고 있는가에 대하여 원인을 규명하고 그에 따른 해결책을 제시하고자 함에 있다. 발행가격결정 자율화 기간동안의 자료를 이용하여 실증적 분석을 한 결과, 우리나라의 저평가는 미국보다 통계적으로 유의하게 큰 것으로 확인되었다. 이러한 이유를 규명하기 위하여 이론적 모형을 제시하고, 우리나라와 미국을 중심으로한 다른 국가들의 발행가격 결정과정에 대한 제도적인 차이점을 검토하였다. 이론적 모형에서는 발행기업과 주간사회사가 수요의 크기를 예측하여 수요의 불확실성 정도가 낮으면 저평가의 크기가 적어진다는 것을 보였다. 제도적인 차이점들을 검토해 본 결과, 우리나라의 발행가격결정이 일반투자자들의 수요를 전혀 고려하지 않는 공급자의 사전가격결정방식을 택하고 있음에 반해, 미국에서는 발행가격대를 표기한 예비사업설명서와 로드쇼우(Road Show) 둥을 통해 투자자들의 수요예측을 하고 있으며 일본이나 프랑스는 발행주식의 일부를 경쟁 입찰에 부침으로써 투자자들이 발행가격결정에 참여하여 발행가격결정의 합리성을 유지하고 있다. 따라서, 우리나라의 저평가의 크기가 다른 국가들에 비하여 큰 이유는 우리나라의 공모주 발행가격 결정과정에서 투자자의 수요를 전혀 고려하지 않기 때문일 수 있으며, 이러한 저평가의 크기를 줄이기 위해서는 어떠한 형태로든지 발행가격 결정과정에 실수요자인 일반투자자가 참여하는 방식이 채택되어야 한다.

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Estimation of Interevent Time for Management of Non-Point Source Pollutants (비점오염원 관리를 위한 독립호우 결정)

  • Lee, Eui Hoon;Yoo, Do Geun;Kim, Joong Hoon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.5
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    • pp.3159-3168
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    • 2014
  • Interevent Time Definition(IETD) is essential in CSOs(Combined Sewer Overflows) tank design for the treatment of non-point source pollution. However, existent rainfall analysis can not calculate total amout of non-point source pollution. For deviding continuous rainfall events, therre are several IETD calculating methods. In this research, After calculate IETD by existents methods, problem of results is identified as existents method. To supplement these problems, new method using exponential decay function is suggested. The confidence range of ${\lambda}$ is estimated.