• Journal of applied mathematics & informatics
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• v.9 no.2
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• pp.825-835
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• 2002

In this paper, we extend the conditional unrelated question model which was suggested by Lee and Hong(2000) to two-sample case when there is no information about the true proportion of the unrelated character Y. Conditions are obtained under which the proposed model is more efficient than Carr et al.\`s conditional modal and Greenberg et al.'s two-sample unrelated question model.

• Journal of Korea Multimedia Society
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• v.23 no.1
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• pp.50-57
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• 2020

The work that detection and elimination to disease and pest have important in agricultural field because it is directly related to the production of the crops, early detection and treatment of the disease insects. Image classification technology based on traditional computer vision have not been applied in part such as disease and pest because that is falling a accuracy to extraction and classification of feature. In this paper, we proposed model that determine to disease and pest of shiitake based on deep-CNN which have high image recognition performance than exist study. For performance evaluation, we compare evaluation with Alexnet to a proposed deep learning evaluation model. We were compared a proposed model with test data and extend test data. The result, we were confirmed that the proposed model had high performance than Alexnet which approximately 48% and 72% such as test data, approximately 62% and 81% such as extend test data.

• Journal of the Korean Operations Research and Management Science Society
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• v.9 no.2
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• pp.9-14
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• 1984

The competitive bidding model with the reserve price has been studied by Riley and Samuelson. We extend their studies to the competitive model with the reserve price and the entry fee. First we present the bidder's optimal strategy, the winner's expected profit, the auctioner's expected revenue in the first-price sealed bidding model, and next those in the second-price sealed bidding model.

• ETRI Journal
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• v.35 no.3
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• pp.542-545
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• 2013

State-of-the-art voice codecs have been developed to extend the input bandwidth to enhance quality while maintaining interoperability with a legacy codec. Most of them employ a modified discrete cosine transform (MDCT) for coding their extended band. We propose a source filter model-based coding algorithm of MDCT spectral coefficients, apply it to the ITU-T G.711.1 super wideband (SWB) extension codec, and subjectively test it to validate the model. A subjective test shows a better quality over the standardized SWB codec.

• The Transactions of the Korean Institute of Electrical Engineers C
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• v.54 no.7
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• pp.339-342
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• 2005

We present a new high-frequency equivalent circuit model for 52pin QFP used in typical IC's and extract R, L, and C values of this circuit model using a 3-D E & M field simulator. Futhermore, L and C value variations as a function of Pin number due to the shape differences of the leads have been fitted to 2nd order polynomials in order to extend the applicability of this model.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.2
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• pp.514-537
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• 2020

Wireless sensor network (WSN) is a distributed network composed of many sensory nodes. It is precisely due to the clustering unevenness and cluster head election randomness that the energy consumption of WSN is excessive. Therefore, a many-objective optimization WSN energy balance model is proposed for the first time in the clustering stage of LEACH protocol. The four objective is considered that the cluster distance, the sink node distance, the overall energy consumption of the network and the network energy consumption balance to select the cluster head, which to better balance the energy consumption of the WSN network and extend the network lifetime. A many-objective optimization algorithm to optimize the model (LEACH-ABF) is designed, which combines adaptive balanced function strategy with penalty-based boundary selection intersection strategy to optimize the clustering method of LEACH. The experimental results show that LEACH-ABF can balance network energy consumption effectively and extend the network lifetime when compared with other algorithms.

• Journal of the Korea Society of Computer and Information
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• v.13 no.5
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• pp.163-170
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• 2008

As the degree of dependency and application of component increases, the need to strengthen security of component is also increased as well. The component gives an advantage to improve development productivity through its reusable software. Even with this advantage, vulnerability of component security limits its reuse. When the security level of a component is raised in order to improve this problem, the most problematic issue will be that it may extend its limitation on reusability. Therefore, a component model concerning its reusability and security at the same time should be supplied. We suggest a Separation of Concerns Security Model for Extension of Component Reuse which is integrated with a wrapper model and an aspect model and combined with a reuse model in order to extend its security and reusability by supplying information hiding and easy modification, and an appropriate application system to verify the model's compatibility is even constructed. This application model gives the extension of component function and easy modification through the separation of conceits, and it raise its security as doll as extends its reusability.

• Journal of the Korean Statistical Society
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• v.29 no.1
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• pp.63-80
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• 2000

We consider the panel data regression model with nested error componets. In this paper, the several Lagrange Multipler tests for the nested error component model are derived. These tests extend the earlier work of Honda(1985), Moulton and Randolph(1989), Baltagi, et al.(1992) and King and Wu(1997) to the nested error component case. Monte Carlo experiments are conducted to study the performance of these LM tests.

• Journal of Digital Convergence
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• v.4 no.1
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• pp.93-109
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• 2006

Several studies have investigated the success of ASP from various perspectives. This study, thus, investigated factors affecting ASP effectiveness in various literature relevant ASP and outsourcing. By applying the basic ideas of the IS success model, this study proposes a research model of the factors affecting the success of ASP, in term of internal factors(Top Management Involvement, User Participation, Size of Organization, IS Maturity) and Reliability factors(Transaction Reliability, After-Sale Reliability, System Reliability, Security). The proposed model is expected to provide a guideline to researchers and practitioners extend their understanding of the success factors of the ASP effectiveness.

• The Journal of Information Systems
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• v.15 no.2
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• pp.227-245
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• 2006

Several studies have investigated the success of ASP(Application Service Provider) from various perspectives. This study, thus, investigated factors affecting ASP effectiveness in various literature relevant ASP and outsourcing. By applying the basic ideas of the IS success model, this study proposes a research model of the factors affecting the success of ASP, in term of internal factors(Top Management Involvement, User Participation, IS Maturity) and external factors(Transaction Reliability, Service Reliability, System Trust Security). The proposed model is expected to help both researchers and practitioners extend their understanding of the success factors of the ASP effectiveness.