• Korean Journal of Computational Design and Engineering
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• v.11 no.4
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• pp.256-264
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• 2006

Currently, it is necessary to share and exchange drawing information between 2D and 3D data in AEC(Architecture, Engineering & Construction) fields. The authors suggest an information model framework to express IFC(Industry Foundation Classes)-based drawing of 3D AEC products as 2D drawing. In this study, 1) an information framework has been developed to enable sharing and exchange of AEC product model by adding various information factors, 2) standardized APIs and an IFC2DBrowser are developed.

• Transactions on Electrical and Electronic Materials
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• v.13 no.4
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• pp.171-176
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• 2012

As langasite $A_3BC_3D_2O_{14}$ compounds with piezoelectric properties exhibit no phase transition up to the melting point of 1,400-$1,500^{\circ}C$, many high temperature applications are expected for the SAW filter, temperature sensor, pressure sensor, and so on, based on the digital transformation of wider bandwidth and higher-bit rates. It has a larger electromechanical coupling factor compared to quartz and also nearly the same temperature stability as quartz. The $La_3Ga_5SiO_{14}$ (LGS) crystal with the $Ca_3Ga_2Ge_4O_{14}$-type crystal structure was synthesized and the crystal structure was analyzed by Mill et al. It is also an important feature that the growth of the single crystal is easy. In the case of three-element compounds such as $[R_3]_A[Ga]_B[Ga_3]_C[GaSi]_DO_{14}$ (R=La, Pr and Nd), the piezoelectric constant increases with the ionic radius of R. In this study, crystal structures of four-element compounds such as $[A_3]_A[B]_B[Ga_3]_C[Si_2]_DO_{14}$ (A = Ca or Sr, B = Ta or Nb) are analyzed by a single crystal X-ray diffraction, and the mechanism and properties of the piezoelectricity depending on the species of cation was clarified based on the crystal structure.

• The KIPS Transactions:PartB
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• v.11B no.1
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• pp.117-124
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• 2004

This paper proposes an efficient algorithm of NaiveBayes without loss of its accuracy. The proposed method uses the transposition of category vectors, and minimizes the computation of the probability of NaiveBayes. The proposed method was implemented on the existing framework of the text categorization, so called, AI::Categorizer and it was compared with the conventional NaiveBayes with the well-known data, Router-21578. The comparisons show that the proposed method outperforms NaiveBayes about two times with respect to the executing time.

• International Journal of CAD/CAM
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• v.12 no.1
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• pp.9-19
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• 2012

Generation of optimum planar B-spline curve in terms of minimum deviation and required fairness to approximate a target shape defined by a strip-shaped unorganized 2D point cloud is studied. It is proposed to use the location of control points as variables within the geometric optimization framework of point distance minimization. An adaptive simulated annealing heuristic optimization algorithm is developed to iteratively update an initial approximate curve towards the target shape. The new implementation comprises an adaptive cooling procedure in which the temperature change is adaptively dependent on the objective function evolution. It is shown that the proposed method results in an improved convergence speed when compared to the standard simulated annealing method. A couple of examples are included to show the applicability of the proposed method in the surface model reconstruction directly from point cloud data.

• Journal of the Korea Society for Simulation
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• v.14 no.2
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• pp.83-92
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• 2005

Access networks connected in B3G networks provide its property network service. Hence, though mobile users may utilize only a network service from an access network, they can also use variety of network services from several access networks for their service satisfaction. To support heterogeneous changeable network service in access networks, the mobile terminal must implement heterogeneous system techniques so that it is able to change the network service by ISHO (Inter-System Handover) In this paper, we present the ISHO condition by the policy-based framework in B3G networks. Also, we propose an ISHO scheme to control network resources for the QoS management of a mobile session between UMTS and WLAN access networks. To support the QoS management, the proposed scheme is that it will be implemented before the resource exhaustion occurs to effect network performances.

• Journal of Internet Computing and Services
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• v.3 no.5
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• pp.1-8
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• 2002

Because XML is a W3C standard and has characteristics like platform-independent, it has a critical role in e-commerce. Business rules and procedures should be standardized for efficient B2B integration, But a lot of companies are its own XML documents instead of standard document, Therefore many organizations try to make standards for e-commerce based on framework. Also, in case use supply chain administration system, because document transmit between corporation use on-line, need messaging system that can transfer XML message In this paper, XML messaging system is designed and implemented. Client requests service in XML and server returns response in XML in this system, So we con more easily and efficiently to exchange document between company this XML messaging system.

• Journal of Korea Multimedia Society
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• v.6 no.3
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• pp.481-487
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• 2003

Because XML is a W3C standard and has characteristics like platform-independent, it has a critical role in e-commerce. Business rules and Procedures should be standardized for efficient B2B integration. But a lot of companies are its own XML documents instead of standard documents. Therefore many organizations try to make standards for e-commerce based on framework. In this paper, we designed and implemented XML Messaging System based on TCP/IP protocols. This system are designed by module. Because, it is easy to extensibility of system. So we can more easily and efficiently build e-commerce system based on this XML messaging system.

• Proceedings of the KSRS Conference
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• 2004.10a
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• pp.355-357
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• 2004

With the introduction to ebXML and web service related standards, enterprises struggle to adapt to the rapidly evolving technology to meet the complex needs of the enterprise customer. The ability to integrate and interoperate individual services within enterprise and with other enterprise's information technology infrastructure using standard-based business processes is an important element of business process management system. For over 25 years EDI has established VAN based solution of exchanging business information in electronic form. However EDI solutions are only accessible to large organizations due to the cost factor. Moreover lack of well accepted B2B business process standards is hindering the success of promoting interoperability between organizations of any size. ebXML work is focused on defining the standard B2B business process context and its runtime semantics in order to remove these hindrances. However ebXML framework does not recommend any particular implementation model to interact with enterprise internal system. This paper propose a end to end business process management architecture by applying ebXML in the front end of the enterprise system and using BPEL to integrate front end services into related services within enterprise.

• Proceedings of the CALSEC Conference
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• 2003.09a
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• pp.115-120
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• 2003

To execute business collaborations, the business process specification is required and it is generated from the business process model. ebXML, which is the XML-based B2B standard framework for organizations over the Internet, recommends process analyst and modeler to use UN/CEFACT Modeling Methodology for modeling. All the artifacts of the modeling and transformed results between different business models may be registered in the business library for the share and re-use. In this paper, we implement the business process modeler including built-in registry client. It provides not only modeling the business process but also generating the specifications, exporting the metadata about the business model, and registering in the business library.

• Journal of the Korean Statistical Society
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• v.30 no.2
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• pp.247-263
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• 2001

This paper concerns a problem of classification based on training dta. A framework of information geometry is given to elucidate the characteristics of discriminant functions including logistic discrimination and AdaBoost. We discuss a class of loss functions from a unified viewpoint.