• 디지털콘텐츠학회 논문지
• /
• 제10권1호
• /
• pp.45-54
• /
• 2009

본 논문은 게임 개발 환경에서 역공학을 이용한 객체지향개념 학습 방법을 제안한다. 흥미와 재미요소를 가지는 게임의 장점과 완성된 게임을 역으로 분석해 가며 사용된 기술을 학습자 스스로 도출해 낸다. 이 과정에서 게임에 사용된 객체지향 개념을 능동적으로 이해할 수 있는 학습 방법을 소개한다. 제안하는 방법은 XNA 게임 개발 환경에서 학습 사례를 소개하고 교수/학습자 역할에 따른 시나리오를 제시한다.

• Journal of Information Processing Systems
• /
• 제8권2호
• /
• pp.241-262
• /
• 2012

An understanding of quality attributes is relevant for the software organization to deliver high software reliability. An empirical assessment of metrics to predict the quality attributes is essential in order to gain insight about the quality of software in the early phases of software development and to ensure corrective actions. In this paper, we predict a model to estimate fault proneness using Object Oriented CK metrics and QMOOD metrics. We apply one statistical method and six machine learning methods to predict the models. The proposed models are validated using dataset collected from Open Source software. The results are analyzed using Area Under the Curve (AUC) obtained from Receiver Operating Characteristics (ROC) analysis. The results show that the model predicted using the random forest and bagging methods outperformed all the other models. Hence, based on these results it is reasonable to claim that quality models have a significant relevance with Object Oriented metrics and that machine learning methods have a comparable performance with statistical methods.

• International Journal of Computer Science & Network Security
• /
• 제22권2호
• /
• pp.232-240
• /
• 2022

To fulfill user expectations, the rapid evolution of software techniques and approaches has necessitated reliable and flawless software operations. Aging prediction in the software under operation is becoming a basic and unavoidable requirement for ensuring the systems' availability, reliability, and operations. In this paper, an improved evolutionary computing-driven extreme learning scheme (ECD-ELM) has been suggested for object-oriented software aging prediction. To perform aging prediction, we employed a variety of metrics, including program size, McCube complexity metrics, Halstead metrics, runtime failure event metrics, and some unique aging-related metrics (ARM). In our suggested paradigm, extracting OOP software metrics is done after pre-processing, which includes outlier detection and normalization. This technique improved our proposed system's ability to deal with instances with unbalanced biases and metrics. Further, different dimensional reduction and feature selection algorithms such as principal component analysis (PCA), linear discriminant analysis (LDA), and T-Test analysis have been applied. We have suggested a single hidden layer multi-feed forward neural network (SL-MFNN) based ELM, where an adaptive genetic algorithm (AGA) has been applied to estimate the weight and bias parameters for ELM learning. Unlike the traditional neural networks model, the implementation of GA-based ELM with LDA feature selection has outperformed other aging prediction approaches in terms of prediction accuracy, precision, recall, and F-measure. The results affirm that the implementation of outlier detection, normalization of imbalanced metrics, LDA-based feature selection, and GA-based ELM can be the reliable solution for object-oriented software aging prediction.

• 컴퓨터교육학회논문지
• /
• 제17권5호
• /
• pp.1-13
• /
• 2014

프로그래밍 교육은 컴퓨터 과학의 원리를 활용하여 우리 생활 속의 문제를 해결하는데 도움을 준다. 객체지향 프로그래밍의 경우 우리가 주변에서 볼 수 있는 문제 또는 객체를 중심으로 프로그램을 작성하기 때문에 생활 속의 활용도를 높일 수 있다. 따라서 본 연구는 객체지향 개념을 친숙한 형태로 학습시키는 방안을 모색하기 위한 목적이 있다. 목적 달성을 위해 6명의 학생을 대상으로 실험 연구를 진행하였다. 연구 결과, 첫째 학생들이 친숙하게 사용할 수 있는 학습 도구가 필요하다는 것, 둘째 프로그래밍 구현 전에, 충분히 사고하고 개념을 습득할 필요가 있음을 발견하였다. 본 연구는 초보 학습자가 이해하기 어려워하는 객체지향 프로그래밍 학습에 도움이 되는 학습 방법을 제시했다는데 의의가 있다.

• Asia pacific journal of information systems
• /
• 제5권2호
• /
• pp.143-176
• /
• 1995

We present an overview of the Extensional Object Model (ExOM) and describe in detail the learning and classification components which integrate concepts from machine learning and object-oriented databases. The ExOM emphasizes flexibility in information acquisition, learning, and classification which are useful to support tasks such as diagnosis, planning, design, and database mining. As a vehicle to integrate machine learning and databases, the ExOM supports a broad range of learning and classification methods and integrates the learning and classification components with traditional database functions. To ensure the integrity of ExOM databases, a subsumption testing rule is developed that encompasses categories defined by type expressions as well as concept definitions generated by machine learning algorithms. A prototype of the learning and classification components of the ExOM is implemented in Smalltalk/V Windows.

• 컴퓨터교육학회논문지
• /
• 제5권1호
• /
• pp.99-108
• /
• 2002

윈도우 프로그래밍과 인터넷 프로그래밍의 수요가 증대함에 따라 객체 지향 프로그래밍 언어에 대한 교육과 객체 지향 소프트웨어 개발에 관한 교육의 중요성이 높아가고 있다. 그러나, 새로운 분야의 개발 기법을 익힌다는 것은 쉬운 일이 아니다. 본 논문에서는 소프트웨어 재사용의 개념과 기법을 객체 모델링 교육에 접목하려고 노력하였다. 즉, 객체 모델링 단계에서 이전의 경험을 재사용할 수 있는 환경을 통해 객체 모델 구축 기법을 효과적으로 학습하도록 지원하고자 한다. 이를 위하여 학습과정에서 질의와 라이브러리에 저장된 컴포넌트에 대한 유사,일치성(Aanalogy)을 판단하여 라이브러리의 모델과 패턴을 재사용할 수 있는 방법을 제안하였다. 이로써 이미 잘 정의된 모델의 이해를 통해 교육 과정의 효과를 증대할 수 있을 것으로 기대한다. 또한 유추 기법(Analogy reasoning) 활용하므로써 단순한 키워드에 의한 재사용 라이브러리 검색 보다는 보다 폭넓은 범위의 대상 검색이 가능하도록 지원한다.

• 한국멀티미디어학회논문지
• /
• 제10권12호
• /
• pp.1679-1686
• /
• 2007

In this paper, we introduce the sharable and reusable learning objects which are suitable for XML Web services in e-learning systems. These objects are extracted from the principles of pedagogical paradigms for reusable learning units. We call them LIO (Learning Item Object) objects. Existing models, such as Web-hosted and ASP-oriented service model, are difficult to cooperate and integrate among the different kinds of e-learning systems. So we developed the LIO objects that are suitable for XML Web services. The reusable units that are extracted from pedagogical paradigms are tutorial item, resource, case example, simulation, problems, test, discovery and discussion. And these units correspond to the LIO objects in our learning object model. As a result, the proposed model is that learner and instruction designer should increase the power of understanding about learning contents that are based on pedagogical paradigms. By using XML Web services, this guarantees the integration and interoperation of the different kinds of e-learning systems in distributed environments and so educational organizations can expect the cost reduction in constructing e-learning systems.

• 한국컴퓨터산업학회논문지
• /
• 제5권9호
• /
• pp.941-946
• /
• 2004

기존의 객체지향 데이터베이스에 학습 객체에 기반을 둔 새로운 클래스를 도입한 확장된 객체 지향 데이터 베이스의 모델을 설계한다. 이를 구현하기 위해 기존의 객체 데이터 베이스에 학습객체클래스를 도입하였으며, 이 클래스들을 연산하기 위한 학습객체 연산 클래스를 설계하였다. 그리고 확장된 객체 지향의 데이터 모델상에서 데이터베이스에 저장된 학습객체의 경험적 분류 모델에 기반을 둔 검색이 가능한 질의어를 설계하였다.

• Journal of Power Electronics
• /
• 제2권4호
• /
• pp.258-267
• /
• 2002

This paper presents the principal features of the software modules developed to provide an interactive teaching/learning environment in Power Electronics that can be used by educators and students. The software modules utilize an object oriented programming LabVIEW that provides a highly flexible graphical user interface. The paper highlights the principal features the software components and illustrates a number of highly interactive graphical user interfaces of selected Power Electronics circuits and systems.

• 한국가구학회지
• /
• 제19권5호
• /
• pp.341-349
• /
• 2008

This study intends to analyze the importance of design on the basis of the children' emotion, by instancing the child-oriented furniture that contributes to the healthy growing and emotion-development of children. This means the reflection of the will trying to see the main point of design for the child-oriented furniture and it's possibility from another new standpoint. It will be understood how far the furniture influences the children and for that the furniture among others for the preschool children having playing & leaning functions is taken as an object of the study. The scope of study is the child-oriented furniture having playing & learning functions that has been presented for displaying as well as for a commercial use, since 2005. The attempt to find objective factors working positively for the emotion- & behavior development of children through seeking a new design of the child-oriented furniture for playing & learning is for emphasizing the importance of the emotional function, not only the primary function of furniture, at designing the child-oriented furniture. The combination between applications of the specialized material for child education & studies, therefore, has to be handled more importantly. The child-oriented furniture for playing & leaning that stimulates a healthy growing of child not only physically, also emotionally should be constantly and more deeply specialized on child education and design aspects.