• Asian Pacific Journal of Cancer Prevention
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• 제15권13호
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• pp.5133-5136
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• 2014

Objective: To use health economics methodology to assess the screening program on gastric cancer in Zhuanghe, China, so as to provide the basis for health decision on expanding the program of early detection and treatment. Materials and Methods: The expense of an early detection and treatment program for gastric cancer in patients found by screening, and also costs of traditional treatment in a hospital of Zhuanghe were assessed. Three major techniques of medical economics, namely cost-effective analysis (CEA), cost-benefit analysis (CBA) and cost-utility analysis (CUA), were used to assess the screening program. Results: Results from CEA showed that investing every 25, 235 Yuan on screening program in Zhuanghe area, one gastric cancer patient could be saved. Data from CUA showed that it was cost 1, 370 Yuan per QALY saved. Results from CBA showed that: the total cost was 1,945,206 Yuan with a benefit as 8,669,709 Yuan and an CBR of 4.46. Conclusions: The early detection and treatment program of gastric cancer appears economic and society-beneficial. We suggest that it should be carry out in more high risk areas for gastric cancer.

• 대한가정학회지
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• 제50권1호
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• pp.41-50
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• 2012

The purpose of this study was to examine the response pattern of children of early childhood (ages 4 to 5) to strangers' luring behaviors that suggest imminent crime. Data were collected from registrants offered by four kindergartens and daycare centers. Individual interviews were performed (N = 100) by using a questionnaire. Results were as follows: First, children of early childhood responded unfavorably to strange adults' kindness and request for aids. However, it was found that they did not make the right decision in relation to strange adults' luring behaviors that lead to crime when family related clues were manipulated. Second, children of early childhood responded favorably to strange adults' luring behaviors that are suggestive of criminal intent when candy, ice cream, and toys were offered. Especially, youngsters were more prone to be deceived by these indices than the older children. Third, older children responded unfavorably to strange adults' luring behaviors that suggest a criminal intent In addition, youngsters did not respond cleverly to strange adults' luring behaviors that suggest a criminal intent while showing a reluctant response.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.883-889
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• 2009

The importance of cost estimate in early stage such has been increasing due to market change and severe competition in construction industry. Because the adjustable budget is only 20% after design stage, most of the crucial decisions to influence cost is made in the early stage. However, in the early stage, the project scope is not defined completely so that estimator has inaccurate information to make critical decision. Therefore, this research suggests the cost estimate method using case-based reasoning. Case-based reasoning is appropriate for the early cost estimating, as it has the strength of rapidity and convenience in cost estimation. This research analyzes 84 actual data of public apartment on the scale of 11~15 stories. In order to extract the most similar case, at the first step this research identifies influence factors and calculates attribute similarity. In case-based reasoning, the most challenging task is determining attribute weight. At the third step, this research calculates case similarity which is aggregated attribute similarity multipled by attribute weight. Finally, extracts the most similar case which has the highest score of case similarity.

• 간호행정학회지
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• 제7권2호
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• pp.301-314
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• 2001

The main purpose of this research is to describe comprehensively the processes of clinical decision making in novice critical care nurses through clinical experience. This research was an exploratory, longitudinal study using a fieldwork approach incorporating "think-aloud" method and in-depth interviews with the study participants. The study participants consisted of 5 novice nurses assigned to critical care units at a tertiary medical center located in Seoul, among a group of 27 novice nurses who started at the same period at this hospital. The data were collected from March 1999 to April 2000. The major findings of the study is that the novice nurses followed the analytic linear model of clinical decision making in the beginning, but were changed increasingly to follow the comprehensive, integrated model of clinical decision making. Through repeated experience that resulted in increasing repertoire of clinical schema and familiarity of task environments of clinical practice the novice nurses expanded their ability to arrive at comprehensive integration of information and to arrive at accurate and time-efficient decisions. Both the analytic, linear model mostly used at the beginning period and the comprehensive, integrated model that seems to be the mode significantly dependent upon experience seem to have strengths and weaknesses as decision making processes in clinical situations. Hence, it is imperative to develop an effective orientation and training program for novice nurses through the use of clinical preceptors. In addition, students should be exposed to the process of clinical decision making early in their nursing education through an appropriate clinical experiences and clinical assignments.

• Journal of the Korean Data and Information Science Society
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• 제22권4호
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• pp.671-678
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• 2011

데이터마이닝은 방대한 양의 데이터 속에서 쉽게 드러나지 않는 유용한 정보를 찾아내는 기법으로서 의사결정나무, 연관 규칙, 군집분석, 신경망 분석 등의 기법이 있으며, 이중 의사결정나무 알고리즘은 의사결정 규칙을 도표화하여 관심대상이 되는 집단을 몇 개의 소집단으로 분류하거나 예측을 수행하는 방법으로서 고객세분화, 고객 분류, 문제 예측 등의 여러 분야에서 유용하게 활용되고 있다. 일반적으로 의사결정나무의 모형 생성 시, 모형 생성의 기준 및 입력 변수의 수에 따라 복잡한 모형이 생성되기도 하며 특히 입력 변수의 수가 많을 경우 종종 모형 생성 및 해석에 있어 어려움을 격기도 한다. 이에 본 논문에서는 의사결정나무 생성 시, 입력 변수에 대한 매개 관계를 파악하여 나무 생성에 불필요한 입력 변수를 제거하는 방법을 제시하고 그 효율성을 파악하기 위하여 실제 자료에 적용하고자 한다.

• 경영과학
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• 제21권3호
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• pp.101-113
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• 2004

In the rapidly propagating Internet based electronic transaction environment. the importance of real time order confirmation has been more emphasized, In this paper, using data mining techniques, we develop intelligent operations decision model to allow real time order confirmation at the time the customer places an order with required delivery terms. Among various operation plannings used for order fulfillment. mill routing is the first interface decision point to link the order receiving at the marketing with the production planning for order fulfillment. Though linear programming based mathematical optimization techniques are mostly used for mill routing problems, some early orders should wait until sufficient orders are gathered for optimization. And that could effect longer order fulfillment lead-time, and prevent instant order confirmation of delivery terms. To cope with this problem, we provide the intelligent decision model to allow instant order based mill routing decisions. Data mining techniques of decision trees and neural networks. which are more popular in marketing and financial applications, are used to develop the model. Through diverse computational trials with the industrial data from the steel company. we have reported that the performance of the proposed approach is effective compared to the present heuristic only mill routing results. Various issues of data mining techniques application to the mill routing problems having linear programming characteristics are also discussed.

• 한국정보시스템학회지:정보시스템연구
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• 제15권2호
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• pp.247-270
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• 2006

This study identifies communication patterns of groups using Instant Messenger for their group decision-making, and examines how these patterns are associated with creative solutions to problems. Our research suggests that certain communication behavior of groups, when appropriately organized, can be of help in enhancing creative production of outcomes. A qualitative study was conducted on communication patterns based on an analysis of text-based electronic conversation protocols. Specifically this research tried to overcome existing studies on electronic groups by focusing on interactive process of communication among participants. The major study conclusions are: (1) Satisfation of group decision-making may depend on the process or sequence of discussion among group members with Instant Messenger. That is, proper interactive responses and appropriate control of the discussion process are essential to obtain a high level of performance. (2) It is important to ]mike discuss rules based on meta-cognitive and interactive protocols in the early stage. Explicit rules relating to internal group processes as well as communication medium use are even more important to groups with Instant Messenger than face-to-face groups.

• 대한전자공학회논문지SP
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• 제44권2호
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• pp.1-11
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• 2007

H.264/AVC의 인터 부호화 기술은, 정교한 움직임 보상 부호화를 위해 다양한 블록 크기의 7가지 모드를, 그리고 인트라 부호화 기술은 2가지의 블록부호화 모드를 사용한다. 이러한 정교한 부호화 기술은 기존 표준에 비해 높은 부호화 효율을 제공 하지만 비트율-왜곡 최적화 기법을 사용할 경우, 많은 계산량을 요구하므로 연산량이 제한된 장치에서는 실시간 구현에 문제점이 발생한다. 따라서 H.264/AVC 부호화 표준의 실시간 구현을 위해서 계산 복잡도를 줄이는 고속 모드 결정법이 필요하다. 본 논문에서 제안한 LBHM(Large Block History Map)을 이용한 블록 크기 활동도 기반 고속 모드 결정 기법은 발생 확률이 낮은 $P8\times8$ 모드를 조기에 생략하여, 부호화 효율의 감소는 최소화 시키면서 H.264/AVC의 전체 부호화 시간을 평균 53% 감소시켰으며, H.264/AVC 참조 모델의 조기 SKIP 모드와 같이 사용할 경우, 전체 부호화 시간을 평균 63% 이상 감소시켰다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.295-298
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• 2007

주택 재건축 정비사업의 초기단계에서의 주요문제점들은 해당분야의 전문가 부재로 인한 전문성결여에서 비롯하여 사업기간을 지연하게 되고, 또한 사업추진의 부진으로 인하여 비용 증가 등이 발생하고 있다. 이러한 내재된 정비사업의 문제 해결 방안으로서 본 연구에서는 건설사업 관리 방식의 모델 적용방안을 제안하고자 한다. 건설사업관리 방식을 적용하여 사업초기 단계에서의 사업계획 수립시 전문적인 지식을 기초로 조합원의 의견을 충분히 수렴할 수 있으며, 사업수행방식의 전문화, 초기단계에서의 합리적인 의사결정, 사업기간 단축, 비용절감, 발주자의 이익을 기여할 수 있다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.872-875
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• 2007

건설공사의 공사 초기단게에서 총 공사기간과 공사비용의 예측은 매우 중요하다. 터널공사는 공기가 길고, 복잡한 공정이 반복적으로 이루어지는 건설공사의 일종이다. 시뮬레이션은 효과적인 건설공사 관리를 위하여 공사 장비 및 자재 등의 적절한 조합을 고려하고, 현장에 적합한 프로세스를 구성하여 실제 공사에 미칠 영향을 예측하고 분석할 수 있는 기법이다. 본 연구에서는 NATM공법으로 시공되는 양방향 도심지 지하철 터널공사에서 발파시간 등의 제한사항을 고려한 모델을 Arena 시뮬레이션을 이용하여 개발하였다. 개발된 모델은 비쥬얼베이직을 이용하여 쉽게 사용할 수 있는 형태로 개발되었으며, 결과값으로 총 공사기간과 공사비용을 얻을 수 있다. 이 결과를 이용하여 공사 초기 단계에서의 의사결정 도구로서 사용될 수 있을 것이다.