• 제목/요약/키워드: selection index

검색결과 898건 처리시간 0.029초

방산물자 수출시장 선정을 위한 구매력 지표의 가중치 산정에 관한 연구 (A study on the Estimation of Weight of Purchasing Power Indicator for Export Market Selection of Defense Industry Products)

  • 주이화;심상렬
    • 무역학회지
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    • 제44권1호
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    • pp.193-205
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    • 2019
  • It is important to accurately analyze the various factors such as the local situation of the purchasable countries and the international situation in order to export defense industrial goods developed in Korea and to enter overseas markets based on the results. In the case of defense materials, unlike the civilian sector, there are a limited number of countries with high export potential. Therefore, to select a possible export market, it is necessary to consider the purchasing power index through the examination of the purchasability of the exportable market. Therefore, the present study chose a total of 18 purchasing power indicators in five major categories of economic power, military power, defense science and technology level, friendly relations with Korea, and possibility of dispute. By calculating each weight with AHP and Fuzzy-AHP analysis, the results was presented the purchasing power index and the weighting. Based on the results will contribute to the study on the method of selecting the export market of the defense materials and the establishment of the export policy of the defense industry.

정보거래자의 옵션 선택에 관한 연구: 한국의 지수옵션시장을 중심으로 (A Study on the Option Selection of Informed Traders: A Case of Korean Index Options)

  • 최병욱
    • 아태비즈니스연구
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    • 제14권2호
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    • pp.33-49
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    • 2023
  • Purpose - The purpose of this study is to examine the option selection and optimal trading of informed traders in KOSPI 200 options market based on the PIN (probability of informed trading) model of Easley et al.(2002). Design/methodology/approach - This study uses TAQ (trade and quote) data provided by Korean Exchanges (KRX) which contains all the bids and trades recorded during the continuous auction trading hours for the KOSPI 200 options between May 2019 and September 2020. Findings - First, there was no difference in the PIN between call and put options in the 2019 data, but the PIN of put options was slightly higher in 2020. Second, regardless of the type of option, the PIN was higher for in-the-money (ITM) options, and the PIN of out-of-the-money (OTM) options was the same as or slightly higher than that of at-the-money (ATM) options. Third, we found that the PIN decreases as trading liquidity increases, and fourth, the PIN increased sharply as the expiration date approached, especially for OTM options, while ITM and ATM options showed relatively weak effects. Fifth, for foreign and institutional investors, the periodicity of orders was observed in milliseconds, especially for foreign investors, where the periodicity of orders was clear and frequent in OTM options. The results suggest that the purpose of option trading varies depending on the moneyness from the perspective of the informed trader.

유사 사례를 이용한 공압 요소 선정에 관한 연구 (A Study on the Selection of Pneumatic Components Using Similar Case)

  • 신흥열;이재원
    • 산업경영시스템학회지
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    • 제19권40호
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    • pp.81-90
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    • 1996
  • It is one of the most important thing to select pneumatic components in pneumatic system design. For the purpose of selecting pneumatic components, case objects are described as a knowledge representation and the most similar case object must be selected by decision making in computer. In this paper, case objects are represented using the methodology that is used for CBR(Case Base Reasoning) and methodology that the most similar case can be selected is Proposed. Algorithm VIWNNR(Varying Index Weight-based Nearer Neighbor Retrieval) is accomplished by varying index weight, that is not considering a index matching as true or false but varying a size of weight according to the degree of matching and enhance the flexibility of SCRM(Similar Case Retrieval Module) involving fuzzy concept in matching the cases. SCRM is tested In verify the feasibility to select pneumatic linear components and is peformed effectively.

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제조업 일별 전력 사용량을 활용한 일일전력경기지수(DEBI) 개발 (Development of a Daily Electricity Business Index by using the Electricity Daily Data of the Manufacturing Sector)

  • 오승환;박성근
    • 한국경영과학회지
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    • 제41권3호
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    • pp.59-74
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    • 2016
  • Electricity sales are directly measured from individual consumers, which could minimize the time gap between data collection and public announcement. Furthermore, industrial electricity sales are highly linked with production and output. Therefore, industrial electricity consumption can be used to track production and output in real time. By using the high-frequency data of industrial electricity sales, this study develops the daily electricity business index (DEBI) to capture the daily economic status. The steps used to formulate DEBI are as follows: (1)selection of the explanatory variables and period, (2) amendment of the seasonal adjustment to eliminate daily temperature and effective day effects, (3) estimation of the weighted value via variables by using PCA, (4) calculation of DEBI and commencement of validation tests. Our empirical analysis and the Hodrick-Prescott filter analysis show that DEBI is highly related to existing economic indices.

Selection of dominant meteorological indices related with heavy rainfall caused by BAIU activity

  • Koji, Nishiyama;Yoshitaka, I;Kenji, Jinno;Akira, Kawamura
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2003년도 학술발표회논문집(1)
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    • pp.163-170
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    • 2003
  • In this study, paying much attention to notable features obtained from spatial distributions of strongly related indices (precipitable water, convergence of air, convective available potential energy) with precipitation, fatal problems in selecting strongly related indices with observed precipitation in a BAIU season were discussed. These results showed spatial distribution of a predicted index provided alternative and physically consistent interpretation for selecting dominant index for heavy rainfall even if the predicted index did not correlate with observed rainfall at a specific observational point as confirmed by the features of CONV (Convergence) or even if it correlated with observed rainfall as confirmed by those of PW (Precipitable Water). Therefore, dominant meteorological indices of heavy rainfall should be selected according to physically evidenced interpretation on features of spatial distributions of indices, and physically and statistically consistent relationship should be built up.

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송도매립지역의 액상화분석 (Analysis of Liquefaction in Son-do Reclaimed land)

  • 신은철;김성환;오영인
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2008년도 춘계 학술발표회 초청강연 및 논문집
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    • pp.1446-1453
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    • 2008
  • This paper presents the mapping of liquefaction for the Incheon Song-do reclamation area using both the liquefaction potential index(LPI) and the equivalent liquefaction factor of safety(FE). As a result, the mapping of liquefaction based on LPI and FE shows similar distribution pattern. Therefore, the mapping of liquefaction presented in this study will be a convenient index for use when the mapping of liquefaction for the Incheon Song-do reclamation area is drawn up. It will make selection of area that needs specific estimation and areas with adaptation of liquefaction counteraction construction methods for the future reclaimed land with the economical soil investigation.

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PcMeter를 이용한 인터넷 접속을 측정 (Korean internet audience centric measurement : Internet index)

  • 이상경
    • 한국조사연구학회지:조사연구
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    • 제1권1호
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    • pp.125-134
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    • 2000
  • 인터넷 리서치의 과학성을 담보하기 위해서는 과학적 원칙과 절차를 지켜야 한다. 그 핵심은 표본추출에 있으며, 특히 자기선택오류를 범하지 않기 위한 방안이 모색되어야 한다. 먼저 인터넷센서스를 통해 네티즌의 분포와 변화상황를 주기적으로 체크하고 그에 준한 표본추출을 실시하여 패널을 구축한다. 구축된 패널에 PcMeter 를 장착케 하여 전송된 로그를 분석하여 제시하는 이를 인터넷 인덱스라한다.

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홍수피해저감지수(FDRRI) 개발 및 시범적용 (Development and the Application of Flood Disaster Risk Reduction Index)

  • 문승록;양승만;최선화
    • 한국안전학회지
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    • 제29권1호
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    • pp.64-69
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    • 2014
  • Community-based disaster preparedness approaches are increasingly important elements of vulnerability reduction and disaster strategies. They are associated with a policy trend that values the knowledge and capacities of local people. In this research, we describe the community diagnosis method and develop Flood Disaster Risk Reduction Index(FDRRI) for assessment of flood vulnerability. FDRRI is composed of four indicators such as Flood Exposure Indicator(FEI), Sensitivity Indicator(SI), Risk Reduction Indicator(RRI), and Community Preparedness Indicator(CPI). We anticipate to present the guideline for selection national preparedness projects and uplift community's preparedness capacity.

승용차 브랜드 사운드를 위한 이차원 음질 인덱스 개발 (New Development of Two-dimensional Sound Quality Index for Brand Sound in Passenger Cars)

  • 조병옥;박동철;이민섭;정승균;이상권
    • 한국소음진동공학회논문집
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    • 제16권5호
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    • pp.457-469
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    • 2006
  • In automotive engineering, the brand sound is one of the important advantage strategies in a car company. For the design of brand sound, the selection of descriptive word for a car sound is one of major works in automotive sound quality research. In this paper, booming and rumbling sound, which are professional words used by sound and vibration engineers are used for the design of brand sound. We employed sound quality metrics, which are used in the psychoacoustics. By most research results, the relationship between subjective evaluations and sound quality metrics has nonlinear characteristics. In order to correlate these subjective evaluations with sound quality metrics, the artificial neural network technology has been applied to two-dimensional sound quality index for a passenger car. These indexes are used for 46 passenger cars, which are samples of the famous cars around the world. Also a preference evaluation for car sound was carried out by sound and vibration engineers. We coupled this preference with booming and rumbling sounds by using artificial neural network. In future, the two dimensional sound and preference index will be very useful to develop brand sound in passenger cars.

정보보호를 위한 다속성 위협지수 : 시뮬레이션과 AHP 접근방법 (Multi-Attribute Threat Index for Information Security : Simulation and AHP Approach)

  • 이강수;김기윤;나관식
    • 한국IT서비스학회지
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    • 제7권1호
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    • pp.117-130
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    • 2008
  • Multi-attribute risk assessments provide a useful framework for systematic quantitative risk assessment that the security manager can use to prioritize security requirements and threats. In the first step, the security managers identify the four significant outcome attributes(lost revenue, lost productivity, lost customer, and recovery cost). Next. the security manager estimates the frequency and severity(three points estimates for outcome attribute values) for each threat and rank the outcome attributes according to AHP(Analytic Hierarchy Process). Finally, we generate the threat index by using muiti-attribute function and make sensitivity analysis with simulation package(Crystal Ball). In this paper, we show how multi-attribute risk analysis techniques from the field of security risk management can be used by security managers to prioritize their organization's threats and their security requirements, eventually they can derive threat index. This threat index can help security managers to decide whether their security investment is consistent with the expected risks. In addition, sensitivity analysis allows the security manager to explore the estimates to understand how they affect the selection.