• Title/Summary/Keyword: Validation test

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A Study on the Validation Test for Open Set Face Recognition Method with a Dummy Class (더미 클래스를 가지는 열린 집합 얼굴 인식 방법의 유효성 검증에 대한 연구)

  • Ahn, Jung-Ho;Choi, KwonTaeg
    • Journal of Digital Contents Society
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    • v.18 no.3
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    • pp.525-534
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    • 2017
  • The open set recognition method should be used for the cases that the classes of test data are not known completely in the training phase. So it is required to include two processes of classification and the validation test. This kind of research is very necessary for commercialization of face recognition modules, but few domestic researches results about it have been published. In this paper, we propose an open set face recognition method that includes two sequential validation phases. In the first phase, with dummy classes we perform classification based on sparse representation. Here, when the test data is classified into a dummy class, we conclude that the data is invalid. If the data is classified into one of the regular training classes, for second validation test we extract four features and apply them for the proposed decision function. In experiments, we proposed a simulation method for open set recognition and showed that the proposed validation test outperform SCI of the well-known validation method

A Study on the Efficacy and Equivalence of D-antigen Quantitative Analysis through QbD6sigma Process (QbD6시그마 프로세스를 통한 D-항원 정량 시험법의 유효성과 동등성에 관한 연구)

  • Kim, Kang Hee;Hyun-jung, Kim
    • Journal of Korean Society for Quality Management
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    • v.50 no.4
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    • pp.831-842
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    • 2022
  • Purpose: This study carried out the Quality by Design (QbD)6σ process to verify the effectiveness and equivalence of the finished D-antigen quantitative test method, and compared the OFAT-based method validation and test result acceptance criteria with the Analytical Quality by Design (AQbD)-based method validation and test method. This is a study on how to reduce the risk of delay in permit change by increasing the reliability of permit data in the existing method by statistically analyzing the results. Methods: With the QbD6σ process, the effectiveness and equivalence of the D-antigen quantitative test method were verified with the data of the existing test method and the new test method. Results: Method validation tests are performed based on AQbD. Critical Method Parameters are identified through risk assessment, and single/combined actions are verified by designing and performing tests for Critical Method Parameters (analysis of variance, full factorial design method). Method validation can be effectively accomplished with the QbD6σ process. Conclusion: The use of QbD6σ can be used to achieve satisfactory results for both pharmaceutical companies and regulators by using appropriate statistical analytical methods for method validation as required by regulatory agencies.

Validation of vehicle dynamic no del by using the optimization tool (최적화 툴을 이용한 동특성 해석 모델 검증)

  • Park, Kil-Bae;Seung, Jae-Ho;Woo, Kwan-Je
    • Proceedings of the KSR Conference
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    • 2009.05a
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    • pp.1557-1565
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    • 2009
  • According to the GM/RT2141, to assess the safety of vehicle, the validated the vehicle dynamic model should be applied. The validation of the vehicle model is against the static test, some kind of vehicle type test results have been used to determine the suspension characteristics and the vehicle dynamic characteristics. To validate the vehicle model and the test results, first the test results has been analysed as to specified the suspension characteristics and than the parameters to related with the test result has to be adjusted to show the same results of the test. In this process the parameters of vehicle model have been determined to show the coherence of the two results of the simulation and the test by trial & error. In this report, the optimization tool has been introduced in this model validation process and shows the efficient and well validated model.

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Software Test for Embedded Systems (임베디드 시스템 소프트웨어 테스트 방법)

  • Lee, Sang-Soo;Shin, Seok-Kyoo;Kim, Hyun-Soo
    • 한국IT서비스학회:학술대회논문집
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    • 2006.11a
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    • pp.190-193
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    • 2006
  • Ther are many stages of the development for the embedded systems' hardware and software as well, which results in many test stages of it with respect to corresponding development stages. The software validation of embedded systems is taken into consideration for the testers to make sure that the systems work correctly after the deployment. Among test stages, especially control logic level testing and system validation testing are considered as the most important test, because the robustness of embedded systems' software can be validated by those two level of tests. in this paper, we would like to introduce the idea of how software test system for embedded systems can be established and of what necessary components are needed

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New Method for Measurement and Validation of In-situ Sound Transmission Loss (In-situ 소음투과손실 측정 및 검증을 위한 기법 개발)

  • Lee, Hwa-Soo;Park, Hong-Cheol;Yoon, Seong-Ho
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2008.04a
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    • pp.795-800
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    • 2008
  • The sound transmission loss is a key index to evaluate the acoustic performance of a car-body structure at the high frequency range. From this paper, a new validation method for in-situ sound transmission loss is proposed. First, in-situ sound transmission loss is measured by using PU intensity probe on the condition of complete vehicle. Second, validation test, which is consisted of internal, external and total frequency response function test, is performed by using volume acceleration source and microphones. Then, these test results are compared to validate the accuracy of in-situ sound transmission loss. Finally, the test result of in-site method is compared with results of two reverberant room test method and SEA analytical method. The reliability of in-situ method is confirmed by these procedures.

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A new bridge-vehicle system part I: Formulation and validation

  • Chan, Tommy H.T.;Yu, Ling;Yung, T.H.;Chan, Jeffrey H.F.
    • Structural Engineering and Mechanics
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    • v.15 no.1
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    • pp.1-19
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    • 2003
  • This paper presents the formulation of a new bridge-vehicle system with validation using the field data. Both pitching and twisting modes of the vehicle are considered in the contribution of the dynamic effects in the bridge responses. A heavy vehicle was hired as a control vehicle with known axle weight, axle spacing and spring coefficients. The measured responses were generated from the control vehicle running at a particular speed at a test span at Ma Tau Wai Flyover. The measured responses were acquired using strain gauges installed beneath the girder beams of the test bridge. The simulated responses were generated using BRVEAN that is a self-developed program based on the proposed bridge-vehicle system. The validation shows that the bridge model is valid for representing the test bridge and the governing equations are valid for representing the motion of moving vehicles.

Field Validation of alternative extraction method for the determination of airborne MWFs (대체용매를 이용한 금속가공유 측정방법 타당성에 대한 현장평가)

  • Jeong, Jee Yeon;Paik, Nam Won
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.19 no.2
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    • pp.96-101
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    • 2009
  • The purpose of this study was to conduct the field validation of alternative method(ETM method) by using non-carcinogenic, and less toxic solvents than NIOSH (National Institute for Occupational Safety and Health) analytical method 5524 for measuring the airborne metalworking fluids in workplaces. We carried out the field validation test by using the exposure chamber, guaranteeing the air sampling homogeneously in a machining environment. The ETM mixed solvent presented the complete solubility of MWFs used in test field. Based on the field test data, the bias of the ETM method from reference method, NIOSH analytical method 5524, was from -7.0% to 5.1%. The overall uncertainty of the ETM nethod was 21.6%, which satisfied the NIOSH criteria for the sampling and analytical criteria.

The Validation Study of Auto Anlysis Method Combined with Aqua Regia Digestion for Fluorine of Soil (왕수분해와 결합한 자동분석법의 토양 중 불소시험 유효성 연구)

  • Na, Kyung-Ho;Yun, In-Chul;Lee, Jung-Bok
    • Journal of Soil and Groundwater Environment
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    • v.15 no.5
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    • pp.8-15
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    • 2010
  • The purpose of this research is to check the validation of an auto-analysis method combined with aqua regia digestion apparatus for improvement of water distillation method used as a fluorine test of soil. Fluorine contents of CaO used in the pretreatment course of water distillation method were 120 mg/kg ~ 5,064 mg/kg at the blank test, which was exceeded up to maximum 12.5 times of the soil standard, so it was estimated due to a effect of fluorine existing as impurities of CaO. The recovery test of the same samples indicated that water distillation method and auto-analysis method were 134.5mg/kg and 161.7mg/kg respectively, the recovery ratio of the latter was 16.8% higher than the formal. The validation test of two methods satisfied the standard, but auto analysis method was excellent more than distillation method. Also, auto analysis method could save a analysis time up to maximum 4.7 times by comparison with water distillation method.

A Study on the Design and Verification-Validation of the Supportive Equipment for Shipyard Test of Naval Combat System (함정 전투체계 함상시험을 위한 지원장비 설계 및 검증 연구)

  • Jung, Youngran;Kim, Cheolho;Han, Woonggie;Kim, Jaeick;Kim, Hyunsil
    • Journal of the Korea Institute of Military Science and Technology
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    • v.17 no.3
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    • pp.318-326
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    • 2014
  • The Shipyard Test of Naval Combat System depends on external factors, such as weather conditions and availability of its sensor-weapon, due to the need of on-board sensor-weapon during the test. This paper suggests the Supportive Equipment using virtual simulator for Shipward Test, in case of the unavailability of the on-board sensor-weapon or the test support force(aircraft, surface ship etc.), to pre-check the functions of the combat system as well as to prepare the Shipyard Test. To mock the real sensor-weapon functions as similar as possible, the Supportive Equipment for Shipyard Test was verified by the Verification and Validation process, which is usually performed while developing models in the Modeling & Simulation field.

Engineering-scale Validation Test for the T-H-M Behaviors of a HLW Disposal System (고준위폐기물 처분시스템의 열적-수리적-역학적 거동 규명을 위한 공학적 규모의 실증시험)

  • Lee Jae-Owan;Park Jeong-Hwa;Cho Won-Jin
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.4 no.2
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    • pp.197-207
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    • 2006
  • The engineering performance of a high level waste repository is significantly dependent upon the T-H-M behavior in the engineered barrier system. An engineering-scale test facility (KENTEX) was set up to validate the T-H-M behaviors in the buffer of a reference disposal system developed in the 2002. The validation tests started on May 31, 2005 and is now in progress. The KENTEX facility and validation test programme are introduced, and pre-operation calculations are also presented to give information on the sensitive location of sensors and operational conditions. This test will provide information (e.g., large-scale apparatus, sensors, monitoring system etc.) needed for 'in-situ' tests, make the validation of a T-H-M model for the T-H-M performance assessment of the reference disposal system, and demonstrate the engineering feasibility of fabricating and emplacing the buffer of a repository.

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