• Title, Summary, Keyword: 효과척도

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A Study on Development of the Measure of Effects for Pallets Standardization (파렛트 표준화의 효과평가척도 개발에 관한 연구)

  • Kim, Hyeon-Seung;Do, Hwa-Yong;Park, Dong-Ju;Choe, Chang-Ho
    • Journal of Korean Society of Transportation
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    • v.27 no.1
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    • pp.97-105
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    • 2009
  • It is expected that logistics standardization have an great effect on industry and national economy due to cost saving and improving efficiency. Therefore all countries of the world make a strenuous effort to take a lead of logistics standardization Despite such efforts of every country, our country remained a lukewarm attitude about logistics standardization. Especially, our country remained a lukewarm attitude about logistics standardization effect quantify. We have to suggest the necessity of standardization and the effect for carrying out logistics standard. So, this study performed literature review and case study for development of effect valuation method. Also, this study developed effect valuation standard for quantifiable standardization effect and drew the effect valuation standard model. First, the measure of preliminary effectiveness was chosen for MOE selection. As a results, vehicle load ratio, delivery cost, keeping space efficiency warehouse automation ratio, etc. were selected. Then, vehicle/truck load ratio, warehouse keeping efficiency, up unloading hour, packaging cost, consistency transportation ratio were chosen for MOE of pallet standardization.

A Study on the Measurement of the system effectiveness with ranked results (순위화시스템의 효과측정척도에 관한 연구)

  • 노정순
    • Journal of the Korean Society for information Management
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    • v.17 no.4
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    • pp.67-81
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    • 2000
  • This study discussed why Precision(& Recall) is not a good effectiveness measurement of IR system providing ranked results, reviewed other effectiveness measurements appropriate for ranked results, and proposed new measurements based on the average rank of relevant documents retrieved. The 18 case-sets of ranked results were used for evaluating 10 effectiveness measurements including proposed measurements. Simple measurements were significantly similar with the 11-Point Precision requiring complicated calculation.

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A Study on Securing Ship Survivability focused on a Cost and Effectiveness Analysis for Air Defense Performance (대공방어성능에 대한 비용효과분석을 중심으로 한 함정생존성 확보방안 연구)

  • Choi, Sung-Lin;Park, Dong-Ki
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.5
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    • pp.2579-2586
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    • 2014
  • It is crucial to set up early the required performance of surface ship for preventing the risk factors such as an excess of performance, cost and period in development stage. In this study, MOP and MOE are proposed to establish the method for deriving alternatives, MOP represents the defensive effect for anti ship missiles and MOE is the ratio of cost and performance. The 16 engagement scenarios which selectively install RF decoy, RF jammer, CIWS and anti air missile are suggested. The simulation results by using NORAM tool operated by ROK Navy show that the ship survivability is 0.605~0.975 and MOP is 0.301~0.887. The analyzed results represent the operating scenario with RF decoy, RF jammer and short range anti air missile is the best cost and effectiveness measure.

Fuel consumption effects of transportation improvement options using mesoscopic traffic simulator (메조모형 시뮬레이터를 이용한 교통운영방식의 연료소모량 분석)

  • 최기주;이건영;오세창
    • Journal of Korean Society of Transportation
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    • v.20 no.1
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    • pp.19-38
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    • 2002
  • To evaluate the effects of transportation system operation, usually measures of effectiveness(MOE) such as travel time, space mean speed, stop/delay ratio have been used. But, energy consumption as well as the existing MOE in transportation receives more attention as an alternative MOE in transportation operation. The purpose of this study is a development of procedure, which could measure the relative energy consumption for each alternative and compare the results. A mesoscopic simulator called INTEGRATION is used to evaluate the operation of high occupancy vehicle lane, signal optimization, lane expansion, and the application of ITS. Among those, the application of ITS shows the greatest effectiveness in energy reduction, and then lane expansion, signal optimization, and the operation of high occupancy vehicle lane in the order named. Because we don't consider the characteristics of vehicle class, Potential demand and the simulation time is just for an hour. it is recommended that a procedure for precise economic analysis and an improvement in methodology are needed in the future for the expanded application of this study.

통계적 척도 선택 방법에 따른 네트워크 침입 분류의 성능 비교

  • Mun, Gil-Jong;Kim, Yong-Min;Noh, Bong-Nam
    • Review of KIISC
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    • v.19 no.2
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    • pp.16-25
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    • 2009
  • 네트워크 기술의 발달에 따른 서비스의 증가는 네트워크 트래픽과 함께 취약점도 증대하여 이를 악용하는 행위도 늘어나고 있다. 따라서 네트워크 침입탐지 시스템은 증가하는 트래픽의 양을 처리할 수 있어야 하며, 악의적인 행동을 효과적으로 탐지 할 수 있어야 한다. 증가하는 트래픽을 효과적으로 처리하고 탐지의 정확성을 높이기 위해 처리 데이터를 감소시키는 기술이 요구된다. 이러한 방법들은 크게 데이터 필터링, 척도 선택, 데이터 클러스터링의 영역으로 구분되며, 본 논문에서는 척도 선택의 방법으로 데이터 처리의 감소 및 효과적 침입탐지를 수행할 수 있음을 보이고자 한다. 실험 데이터는 KDDCUP 99 데이터 셋을 이용하였으며, 통계적 척도선택의 방법으로 분류율, 오탐율, 거리값, 규칙, 선택된 척도 등을 제시함으로써 침입 탐지 시 데이터 처리량이 감소하였고, 분류율은 증가, 오탐율은 감소하여 침입 탐지 정확성이 높아짐을 알 수 있었다. 또한 본 논문에서 제시한 방법이 다른 관련연구에서 제시한 선택 척도보다 높은 정확성을 보임으로써 보다 유용함을 증명할 수 있었다.

A Study on Developing and Validating of a Scale for Business Effectiveness of Microcredit (마이크로크레딧 사업 운영의 효과성 측정을 위한 척도개발 및 타당화 연구)

  • Yim, Eun-Eui;Kim, Haklyoung
    • Journal of Digital Convergence
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    • v.16 no.6
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    • pp.27-35
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    • 2018
  • This study aims to develop the scale for business effectiveness targeting microcredit users. For this, based on domestic preceding researchers empirically handling the microcredit and also focus group interviews with users and specialists, total 30 preliminary questions were composed. After that, conducting the exploratory factor analysis targeting 127 finally collected surveys, in the results of analysis, the scale validity of three factors and 24 questions was verified. Also, considering the goodness-of-fit of model through the confirmatory factor analysis, the effectiveness scale of microcredit business was determined. The concrete factors included 5 questions of the store operation, 3 questions of business start-up satisfaction, and 16 questions of management competency. Lastly, based on the effectiveness scale of business developed by this study, the research direction and the practical development direction of microcredit was suggested.

The Macroscopic Model for Signalized Intersections to Consider Progression in relation to Delay (지체시간과 연동성을 동시에 고려하는 신호교차로 시뮬레이션 모형의 개발)

  • Han, Yohee;Kim, Youngchan
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.11 no.6
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    • pp.15-22
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    • 2012
  • A performance index of singalized intersections is a standard to optimize signal control variables and to manage traffic flow. Traffic delays is generally used to minimize the average delay time on intersections or networks, progression efficiency is used to improve travel speed of main cooridors or to provide transit signal priority. We manage traffic flows with only selecting one index between delays and progression according to the objective of traffic management and field characteristics. In real field, the driver's satisfaction is high in any performance criteria when the waiting time is shorter and the unnecessary stop in front of traffic is smaller. This paper aims to develop simulation model to represent real progression with concurrently considering delays and progression. In order to reflect an effect of level of traffic volumes and residual queues which don't be considered in prior progression model, we apply shockwave model with flow-density diagram. We derive Cell Transmission Model of Daganzo in order to develop the delay index and the progression index for the macroscopic simulation model. In order to validate the effect, we analysis traffic delays and progression efficiency with comparing this model to Transyt-7F and PASSER V.

An approach of the Reliability Metrics Identification Using an Application Condition Matrix (적용조건 매트릭스를 이용한 신뢰성 척도 식별 기법)

  • Park, Jin-Hee;Choi, Okjoo;Baik, Jongmoon;Shin, Ju-Hwan
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.236-239
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    • 2010
  • 소프트웨어 신뢰성 보증을 위한 소프트웨어 신뢰성 평가 프로세스는 다양한 관점에서 대상 소프트웨어 시스템뿐만 아니라 관련된 조직 및 개발 프로세스에 대한 분석을 필요로 한다. 특히, 신뢰성 평가 프로세스 수행 단계 중 단계별 척도 식별단계는 대상 시스템의 도메인 특성을 반영해야 하는 까다로운 작업이다. 현재 신뢰성 관련 척도들이 여러 문서에 다양한 의미로 혼재해 있어 이를 조사하는데 많은 노력이 들며 대상 시스템 환경에 적합한 척도 식별을 위해 불필요하게 많은 회의와 인터뷰를 진행하고 있는 실정이다. 본 논문에서는 표준문서 및 관련문헌에 근거하여 신뢰성 척도 POOL 을 구성하고 각 척도 원시 데이터의 수집 조건에 기반한 적용조건 매트릭스를 이용하여 기존의 신뢰성 관련 척도 조사 및 수집, 척도 식별 과정에서 소요되는 자원, 시간의 낭비를 줄이고자 한다. 이 방법을 적용하였을 때 소요된 시간과 기존의 회의를 통해 소요되는 시간을 비교하여 본 논문에서 제시하는 방법의 효과를 평가한다.

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A Prediction Model for Depression Risk (우울증에 대한 예측모형)

  • Kim, Jaeyong;Min, Byungju;Lee, Jaehoon;Chang, Jae Seung;Ha, Tae Hyon;Ha, Kyooseob;Park, Taesung
    • The Korean Journal of Applied Statistics
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    • v.27 no.2
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    • pp.317-330
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    • 2014
  • Bipolar disorder is a psychopathy characterized by manic and major depressive episodes. It is important to determine the degree of depression when treating patients with bipolar disorder because 810% of bipolar patients commit suicide during the periods in which they experience major depressive episodes. The Hamilton depression rating scale is most commonly used to estimate the degree of depression in a patient. This paper proposes using the Hamilton depression rating scale to estimate the effectiveness of patient treatment based on the linear mixed effects model and the transition model. Study subjects were recruited from the Seoul National University Bundang Hospital who scored 8 points or above in the Hamilton depression rating scale on their first medical examination. The linear mixed effects model and the transition model were fitted using the Hamilton depression rating scales measured at the baseline, six month, and twelve month follow-ups. Then, Hamilton depression rating scale at the twenty-four month follow-up was predicted using these models. The prediction models were then evaluated by comparing the observed and predicted Hamilton depression rating scales on the twenty-four month follow-up.