• 한국멀티미디어학회논문지
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• 제19권5호
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• pp.874-880
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• 2016

The gesture classification has been applied to many fields. But it is not efficient in the environment for game interface with low specification devices such as mobile and tablet, In this paper, we propose a effective way for realistic game interface using k-nearest neighbors algorithm for gesture classification. It is time consuming by realtime rendering process in game interface. To reduce the process time while preserving the accuracy, a reconstruction method to minimize error between training and test data sets is also proposed. The experimental results show that the proposed method is better than the conventional methods in both accuracy and time.

• 한국CDE학회논문집
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• 제15권4호
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• pp.279-288
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• 2010

In this paper, a DEVS(Discrete EVent Systems Specification)-HLA(High Level Architecture) interface was developed in order to perform the simulation using the combined discrete event and discrete time simulation model architecture in a distributed environment. The developed interface connects the combined simulation model with the HLA/RTI(Run-Time Infrastructure) which is an international standard middleware for distributed simulation. The interface consists of an interface model, a model interpreter, and a distributed environment interpreter. The interface model was defined by using the combined simulation architecture in order to easily connect the existing combined simulation model without modification with the HLA/RTI. The model interpreter takes charge of data transmission between the interface model and the combined simulation model. The distributed environment interpreter takes charge of data transmission between the interface model and the HLA/RTI. To evaluate the applicability of the developed interface, it was applied to the diving simulation of a submarine in a distributed environment. The result shows that a simulation result in a distributed environment using the interface is the same to the result in a single computing environment.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 1999년도 추계학술대회 논문집
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• pp.7-11
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• 1999

Farmer 모델에 의하여 정의된 망관리 시스템 에이전트의 구성모델을 인터페이스 명세모델로의 매핑에 대하여 서술하였다. 인터페이스 명세모델은 컴포넌트 기반 개발 (Component Based Development)에서 구현과 설계를 구분하기위하여 제시하는 모델로서 본 논문에서는 TMN 에이전트 설계의 예로서 설명하였다. 특히 Farmer 모델에서의 측면의 개념을 반영하기 위하여 측면 인터페이스(Aspect Interface)의 개념을 도입하였다.

• Journal of electromagnetic engineering and science
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• 제3권2호
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• pp.91-98
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• 2003

Software Communication Architecture(SCA) has been made to reduce the development period of new waveform applications by reusing design modules. Software Defined Radio(SDR) forum adopted SCA specification and follows its design concept. However, SCA specification does not describe interfaces and deployments of resources in details, which are software components, and how to implement them as well as how to communicate each other are another missing points in specification. In this paper, we propose a resource design methodology and details of adapter implementation for Core Framework(CF) that is a core set of open interface and services providing an abstraction of the underlying software and hardware layer. We also present SDR prototype system which communicates with resources implemented in different programming languages and processors in legacy environment through our design methodology.

• 대한안전경영과학회지
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• 제10권3호
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• pp.81-87
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• 2008

The reliability prediction and evaluation for general electronic components are required to guarantee in quality and in efficiency. Although many methodologies for predicting the reliability of electronic components have been developed, their reliability might be subjective according to a particular set of circumstances, and therefore it is not easy to quantify their reliability. In this study reliability prediction of electronic components, that is the interface card, which is used in the CNC(Computerized Numerical Controller) of machine tools, was carried out using PRISM reliability prediction specification. Reliability performances such as MTBF(Mean Time Between Failure), failure rate and reliability were obtained, and the variation of failure rate for electronic components according to temperature change was predicted. The results obtained from this study are useful information to consider a counter plan for weak components before they are used.

• 한국시뮬레이션학회논문지
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• 제8권4호
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• pp.137-154
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• 1999

In this paper, we propose a software design method that will track the effects of modifications in a component to the rest of the components in the design phase. The prediction of the effects due to the design modifications before coding can be a valuable aid for the complex and large software development. Within the method, the target system is represented by the structured I/O system level specification which is one of the system representation level defined by the system theory. Then it is abstracted to the I/O system level. The DEVS (Discrete Event System Specification) model is constructed based on tile I/O system level specification. Finally, the DEVS model is simulated to generate the behavior of the software by the abstract simulator in DEVS simulation environment. As an application, the graphic user interface system of a metal grating production scheduling system is presented.

• 한국전자거래학회지
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• 제3권1호
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• pp.1-22
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• 1998

SDAI (Standard Data Access Interface) is an interface specification of accessing various storage systems such as file systems and database management systems for STEP data. Using SDAI, both application program developers and CAD/CAM system developers can be relieved from dealing with STEP physical file or system dependent DBMS operations. In this paper, we present implementations of SDAI on different data models, i.e., relational, extended relational, and object-oriented. In order to implement SDAI, we need to translate the EXPRESS information model into target data models. The schema translation process for three different data models are compared and other implementation issues are discussed.

• International Journal of Naval Architecture and Ocean Engineering
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• 제4권3호
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• pp.211-227
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• 2012

To implement a combined discrete event and discrete time simulation such as submarine diving simulation in a distributed environment, e.g., in the High Level Architecture (HLA)/Run-Time Infrastructure (RTI), a HLA interface, which can easily connect combined models with the HLA/RTI, was developed in this study. To verify the function and performance of the HLA interface, it was applied to the submarine dive scenario in a distributed environment, and the distributed simulation shows the same results as the stand-alone simulation. Finally, by adding a visualization model to the simulation and by editing this model, we can confirm that the HLA interface can provide user-friendly functions such as adding new model and editing a model.

• 한국정보과학회논문지:소프트웨어및응용
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• 제29권10호
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• pp.703-725
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• 2002

컴포넌트는 소프트웨어 개발의 복잡성을 감소시키는 효과적인 방법으로 평가되고 있다. 그러나 소프트웨어 개발 시 컴포넌트를 사용하여 기간 단축과 비용 절감 효과를 얻기 위해서는 컴포넌트의 재사용성이 향상되어야 한다. 업무 단위로 컴포넌트를 설계하여 컴포넌트 안에 업무 워크플로우를 포함하는 것은 컴포넌트의 재사용성을 향상시키는 효과적인 방법이다. 워크플로우가 내장된 컴포넌트는 업무 단위로 재사용되기 때문에 개발 기간 단축과 비용 절감 효과가 크다. 몇 몇 컴포넌트 방법론에서 워크플로우를 내장한 컴포넌트 설계 기법의 필요성을 제시했다. 그러나 컴포넌트 개발에 적용하기 위해서는 좀 더 실용적이고 구체적인 기법이 요구된다. 본 논문에서는 컴포넌트를 통한 워크플로우의 재사용을 위해 패밀리 멤버간의 가변적인 워크플로우를 컴포넌트에 내장하여 재사용성을 높이는 기법을 제안한다. 제시된 기법은 워크플로우와 워크플로우 가변성에 대한 정형명세를 통해 복잡한 워크플로우의 설계를 단순화한다. 또한 정형 명세를 통해 워크플로우 가변성 간의 불일치를 해결하고 가변성의 결합도를 낮춘다. 정형 명세와 UML을 사용한 컴포넌트 모델링의 산출물은 컴포넌트 구현 소스 코드를 자동으로 생성하는 것을 돕는다. 따라서 제시된 설계 기법은 개발자의 생산성을 높이고 컴포넌트의 재사용성을 향상시킨다. 본 논문에서는 설계 기법과 함께 예제를 통해 컴포넌트 워크플로우 명세와 설계 기법의 타당성을 입증한다.

• 전자공학회논문지B
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• 제32B권1호
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• pp.161-170
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• 1995

본 논문에서는 전문가 시스템의 사용자 인터페이스 모듈을 구현하기 위하여 사용자 인터페이스의 구조적 스키마(description schema)로서 수트(SUIT : Schematic User Interface Tasks)를 정의하였으며, 이를 관리하는 '수트관리기'(SUIMAN : SUIT Manager)를 구현하였다. 수트는 전문가 시스템의 사용자 인터페이스 설계 초기 단계에서, 수트를 사용하여 사용자 인터페이스 구현을 위해 이루어져야 할 행위를 개념적인 상위 수준에서 기술한다. 수트관리기는 수트에서 기술된 것이 언제 실행될지 결정한다. 그래픽 사용자 인터페이스의 실현은 X-윈도우의 MOTIF 라이브러리에 의해 제공되는 함수들을 실행함으로써 이루어진다. 즉, 수트관리기는 수트에 기술된 사용자 인터페이스 명세를 해석하여 실제 그래픽 사용자 인터페이스를 자동으로 실현시킨다. 수트와 수트관리기를 사용함으로써 전문가 시스템 개발에서 사용자 인터페이스 모듈의 보다 신속한 개발이 가능하다. 본 논문의 사용자 인터페이스 기술 방법은 `자동 회전 구성 전문가 시스템`의 사용자 인터페이스에 사용되었다.