• Title/Summary/Keyword: Evaluation-Methods

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Quantitative Evaluation of Nonlinear Shape Normalization Methods for the Recognition of Large-Set Handwrittern Characters (대용량 필기체 문자 인식을 위한 비선형 형태 정규화 방법의 정량적 평가)

  • 이성환;박정선
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.30B no.9
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    • pp.84-93
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    • 1993
  • Recently, several nonlinear shape normalization methods have been proposed in order to compensate for the shape distortions in handwritten characters. In this paper, we review these nonlinear shape normalization methods from the two points of view : feature projection and feature density equalization. The former makes feature projection histogram by projecting a certain feature at each point of input image into horizontal-or vertical-axis and the latter equalizes the feature densities of input image by re-sampling the feature projection histogram. A systematic comparison of these methods has been made based on the following criteria: recognition rate, processing speed, computational complexity and measure of variation. Then, we present the result of quantitative evaluation of each method based on these criteria for a large variety of handwritten Hangul syllables.

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Manufacturing of Korean Traditional Rice Wine by using Gardenia jasminoides (발효법을 달리하여 제조한 치자꽃 발효주의 특성)

  • Cho, Soo-Muk;Kim, Jae-Ho;Park, Hong-Ju;Chun, Hye-Kyung
    • Microbiology and Biotechnology Letters
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    • v.37 no.4
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    • pp.413-415
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    • 2009
  • To develop a new traditional rice wine by using Gardenia jasminoides, various fermentation methods such as without cooking, with cooking and with starter seed methods were studied. The condition of alcohol fermentation was investigated by addition of 1% Gardenia jasminoides into mash. Among the fermented methods, the fermentation with starter seed was the best as the alcohol was 19%. The acceptability of the Gardenia jasminoides rice wine with different methods were compared. The starter seed method which was prepared by adding 1% Gardenia jasminoides into mash showed the best acceptability in the sensory evaluation test and color test.

A Corrosion Resistance Evaluation of Welded AISI 304 Stainless Steel by Electrochemical Methods. (전기화학적 방법에 의한 AISI 304 스테인리스강 용접부의 내식성 평가)

  • 백신영;김관휴
    • Journal of Advanced Marine Engineering and Technology
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    • v.14 no.1
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    • pp.83-89
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    • 1990
  • Electrochemical methods have been proposed as non-destructive, rapid and quantitative means for determining the degree of sensitization associated with Chromium depleted zones surrounding precipitates of Cr carbide and formation of secondary phase in stainless steel. In this study, the specimen of AISI 304 stainless steel and its welded sections, which welded by TIG, MIG, $CO_2$ and ARC, were tested corrosion resistance by electrochemical methods in 0.5N HCl and 1N $H_2SO_4$ with or without 0.01N KSCN. The results were confirmed that electrochemical methods could be used as a test method of corrosion resistance evaluation for the welded AISI 304 stainless steel.

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Comparison of measurement uncertainty calculation methods on example of indirect tensile strength measurement

  • Tutmez, Bulent
    • Geomechanics and Engineering
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    • v.12 no.6
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    • pp.871-882
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    • 2017
  • Indirect measure of the tensile strength of laboratory samples is an important topic in rock engineering. One of the most important tests, the Brazilian strength test is performed to obtain the tensile strength of rock, concrete and other quasi brittle materials. Because the measurements are provided indirectly and the inspected rock materials may have heterogeneous properties, uncertainty quantification is required for a reliable test evaluation. In addition to the conventional measurement evaluation uncertainty methods recommended by the Guide to the Expression of Uncertainty in Measurement (GUM), such as Taylor's and Monte Carlo Methods, a fuzzy set-based approach is also proposed and resulting uncertainties are discussed. The results showed that when a tensile strength measurement is measured by a laboratory test, its uncertainty can also be expressed by one of the methods presented.

Advances in the Development and Validation of Test Methods in the United States

  • Casey, Warren M.
    • Toxicological Research
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    • v.32 no.1
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    • pp.9-14
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    • 2016
  • The National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods (NICEATM) provides validation support for US Federal agencies and the US Tox21 interagency consortium, an interagency collaboration that is using high throughput screening (HTS) and other advanced approaches to better understand and predict chemical hazards to humans and the environment. The use of HTS data from assays relevant to the estrogen receptor signaling data pathway is used as an example of how HTS data can be combined with computational modeling to meet the needs of US agencies. As brief summary of US efforts in the areas of biologics testing, acute toxicity, and skin sensitization will also be provided.

Characteristics of Abutment Slopes of Four Dams in Korea (우리나라 주요 댐 좌우안 사면의 특징)

  • 신동훈;이종욱
    • Proceedings of the Korean Geotechical Society Conference
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    • 2000.11b
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    • pp.183-195
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    • 2000
  • Slopes near a dam body can be categorized into 4 groups, such as right and left abutment slopes, reservoir slopes, slopes along the access road and slopes along the relocated road. For each of the geological investigation, the design standards, the evaluation methods of safety and the maintenance methods, both abutment slopes in the four dams have different characteristics from the conventional cut slopes in that they can severely affect the dam safety. From this point of view this study compares and analyzes the geological investigation methods, the status of design and construction, evaluation method of safety, and monitoring & maintaining methods for four major dams in Korea, such as Soyanggang dam, 'Andong dam, Chungju dam and Boryong dam.

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A Study on the Efficient Application of Design Indicators to User Participatory Design for School Facilities (학교건축 디자인 지표의 사용자 참여설계 적용에 관한 연구)

  • Cho, Chang-Hee;Oh, Hyoung-Seok;Lee, Hwa-Ryong
    • Journal of the Korean Institute of Educational Facilities
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    • v.20 no.3
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    • pp.3-12
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    • 2013
  • The study explored empirically user participatory design methods for realizing user demand efficiently and evaluating alternatives systematically by using design indicators such as the design quality indicators system of the UK. In the empirical exploratory process utilizing design indicators, the study selected design indicators, and conducted a survey of design realization methods, evaluation methods, and user participatory design utilizing design indicators. Also, concerning the empirical exploratory process, it can be classified into a preliminary survey aimed at those majoring in architecture; a user group survey aimed at elementary school students, parents, and teachers; and a professional group survey aimed at professionals in architecture. In particular, the study carried out the survey for the empirical exploratory process of user participatory design by combining on-line and off-line methods.

Numerical Evaluation of Various Numerical Integration Methods in Free Vibration Analysis (자유진동 해석에서 수치적분기법의 수치적평가)

  • 송주한;안대순;오상진;박광규
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2001.11b
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    • pp.1249-1253
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    • 2001
  • Numerical analysis is sometimes used to solve the problems in the engineering and natural science fields. On this reason, the faster, more practical system in computing the numerical solution is required. This paper deals with the numerical evaluation of various numerical integration methods which is frequently used in the engineering fields. This paper choices four integration methods such as Euler method, Heun's method, Runge-Kutta method and Gill's method for evaluating the each integration method. In numerical examples, the free vibration problem on an elastic foundation is chosen. As the numerical results, the natural frequencies and the running time are obtained, and these results are compared to examine the practicality of integration methods.

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Improved Method for Considering Citation Measures in Evaluating Korean Journals (국내 학술지평가에서 인용지수 반영 방법의 개선방안)

  • Lee, Jae Yun
    • Journal of the Korean Society for information Management
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    • v.37 no.1
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    • pp.197-220
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    • 2020
  • Recently, the National Research Foundation of Korea (NRF) announced new plan to reflect the KCI citation measures in journal evaluation. In principle, Journal evaluation should reflect each journals situation and characteristics through various indicators. In this study, three improvement plans were proposed by reviewing the announced journal evaluation plan of NRF. The first improvement is to consider the five-year IF as an additional citation measure; the second improvement is to allow flexible selection of the category level on which to rank journals; and the last improvement is to combine the previous two methods and apply them together. The improvement methods proposed in this study are expected to contribute to minimizing side effects of KCI journal evaluation.

An Evaluation of Software Product Quality Using Statistical Quality Control (통계적 품질관리에 의한 소프트웨어 제품의 품질평가)

  • Riew, Moon-Charn;Rim, Seong-Taek;Chung, Sang-Chul;Lee, Sang-Duk;Shin, Suk-Kyu
    • Journal of Information Technology Application
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    • v.3 no.4
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    • pp.119-134
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    • 2001
  • Improving software product quality is a key to increasing user satisfaction and to achieving competitive edge. There are two approaches to assure high software product quality; development process-oriented and product-oriented. There have been many efforts for improving software quality through process certification, for example, CMM, ISO 9000 family, ISO/IEC 12207, SPICE and Bootstrap. However, a good process alone cannot guarantee good product quality. A need for the evaluation of software product quality by an independent third party is growing rapidly for several reasons. We are concerned with an application of Statistical Quality Control (SQC) to the evaluation of software product quality to obtain the efficiency of evaluation processes and the objectivity of evaluation results. Methods for selecting test cases using a random sampling approach have been discussed and methods for selecting acceptance criteria with respect to software product quality have also been suggested.

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