• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권9호
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• pp.4624-4644
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• 2019

With the development of films, games and animation industry, analysis and reuse of human motion capture data become more and more important. Human motion segmentation, which divides a long motion sequence into different types of fragments, is a key part of mocap-based techniques. However, most of the segmentation methods only take into account low-level physical information (motion characteristics) or high-level data information (statistical characteristics) of motion data. They cannot use the data information fully. In this paper, we propose an unsupervised framework using both low-level physical information and high-level data information of human motion data to solve the human segmentation problem. First, we introduce the algorithm of CFSFDP and optimize it to carry out initial segmentation and obtain a good result quickly. Second, we use the ACA method to perform optimized segmentation for improving the result of segmentation. The experiments demonstrate that our framework has an excellent performance.

• 한국컴퓨터정보학회논문지
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• 제16권6호
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• pp.51-59
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• 2011

국내에는 바이너리 코드에 대한 분석 기술이 많이 부족한 상태이다. 일반적으로 컴퓨터에 설치되는 실행 파일은 소스 코드 없이 단지 바이너리로 된 실행 파일만 주어지는 경우가 대부분이다. 따라서 위험하거나 알 수 없는 동작이 수행되는 경우가 발생할 수 있다. 따라서 이 논문에서는 바이너리 수준에서 정적으로 프로그램 분석을 수행할 수 있는 프레임워크를 설계 및 구현한다. 이 논문에서는 바이너리 실행 파일로부터 실행 순서 및 제어 흐름 등의 정보를 표현할 수 있는 제어 흐름 그래프를 작성하여 실행 흐름과 위험한 함수의 호출 여부를 동시에 파악하고 개발된 프레임워크를 통해 바이너리 파일에 대한 분석을 용이하게 한다.

• Asia pacific journal of information systems
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• 제8권3호
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• pp.147-163
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• 1998

Advances in information and telecommunications technology are producing unprecedented shifts in the way businesses conduct their business, Today, electronic commerce is becoming pervasive due to, in large part, the widespread use of Internet and Worldwide Web. One element that plays an important role in shaping the success of electronic commerce is the electronic payment system. Deficiency in its reliability and security may lead to unwanted outcomes, including economic losses and customer dissatisfaction. By far, numerous forms of electronic payment systems have been introduced in the virtual marketplace. However, there exists little research that has focused on the characteristics of the electronic payment systems such that they may be compared with one another. This article is aimed at providing a framework for comparative analysis of electronic payment systems, examining the characteristics of the individual payment systems, and suggesting a choice strategy which enables a firm to select an appropriate payment system suited to their business needs. The framework classifies electronic payment systems into four categories including electronic cash, electronic checks, credit cards, and smart cards, and it can be employed in planning for an electronic commerce system.

• 한국컴퓨터정보학회논문지
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• 제22권6호
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• pp.57-68
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• 2017

The Linked Open Data(LOD) cloud is quickly becoming one of the largest collections of interlinked datasets and the de facto standard for publishing, sharing and connecting pieces of data on the Web. Data publishers from diverse domains publish their data using Resource Description Framework(RDF) data model and provide SPARQL endpoints to enable querying their data, which enables creating a global, distributed and interconnected dataspace on the LOD cloud. Although it is possible to extract structured data as query results by using SPARQL, users have very poor in analysis and visualization of RDF data from SPARQL query results. Therefore, to tackle this issue, based on Formal Concept Analysis, we propose a novel approach for analyzing and visualizing useful information from the LOD cloud. The RDF data analysis and visualization technique proposed in this paper can be utilized in the field of semantic web data mining by extracting and analyzing the information and knowledge inherent in LOD and supporting classification and visualization.

• Journal of information and communication convergence engineering
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• 제19권3호
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• pp.175-179
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• 2021

Enhancing the reliability of the system is important for recent system-on-chip (SoC) designs. This importance has led to studies on fault diagnosis and tolerance. Fault-injection (FI) techniques are widely used to measure the fault-tolerance capabilities of resilient systems. FI techniques suffer from limitations in relation to environmental conditions and system features. Moreover, a hardware-based FI can cause permanent damage to the target system, because the actual circuit cannot be restored. Accordingly, we propose a simulation-based FI framework based on the Verilog Procedural Interface for measuring the failure rates of SoCs caused by soft errors. We execute five benchmark programs using an ARM Cortex M0 processor and inject soft errors using the proposed framework. The experiment has a 95% confidence level with a ±2.53% error, and confirms the reliability and feasibility of using proposed framework for fault analysis in SoCs.

• 과학교육연구지
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• 제44권1호
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• pp.84-91
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• 2020

이 연구에서는 초등학교 3~6학년 과학 교과서 과학 탐구 활동에 나타난 지식정보처리역량 요소를 알아보고자 하였다. 이를 위해 지식정보처리역량의 구성 요소를 추출하였고, 지식정보처리역량 분석틀을 구안하였다. 초등학교 3~6학년 과학 교과서 8권을 분석 틀로 분석하여 다음과 같은 결과를 얻었다. 첫째, 지식정보처리역량은 '수집', '분석', '조직', '선택', '평가'의 5가지 요소로 정리할 수 있다. 둘째, 초등학교 과학 교과서의 과학 탐구 활동의 지식정보처리역량의 요소는 고르게 구성되지 않았다는 것을 알 수 있었다. 초등학교 과학 교과서의 과학 탐구 활동은 지식정보처리역량 5가지 요소 중 '수집', '분석'에 치우쳐 있었으며, '조직', '선택', '평가' 순으로 나타났다. 이상의 결과들로부터 초등학교 과학 교과에서 지식정보처리역량을 기르기 위한 과학 탐구 모형이나 과학 수업 모형이 필요함을 알 수 있었다.

• 한국초등과학교육학회지:초등과학교육
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• 제22권2호
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• pp.163-172
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• 2003

The purpose of this study was to develop the analytic framework of Creative Problem Solving(CPS) for elementary school science textbook. For this purpose, we developed the framework based on the theories of problem, definition of problem solving and various kinds of CPS model. The six elements of the framework for content analysis were extracted through theoretical examination: problem introduction, problem statement, solution thinking, formulating hypothesis, testing hypothesis, and assessment. The developed framework was applied to the extbooks for the 5th and the 6th grades 1st semester in elementary science textbook of the 7th national curriculum. The results of this study were as follows: 1. The scores of the framework for content analysis in the 5th grade were slightly higher than those of the 6th grade, but there were no significant difference. 2. The comparison of the scores between the elements of the framework was found that the scores on the elements of testing hypothesis and formulating hypothesis were higher than those of the other elements. 3. The comparison of the scores between the units was found that the scores of the framework for the 9th unit (“trip of water”) of the 5th grade were higher than those of the other units, which were presented lower level than 1.0 (50.0%) score of the framework. 4. The comparison of the scores between the intensive course and the regular coures in the 6th grade textbook was showed that the scores on the intensive course were higher than the basic course. In conclusions, it was found that the problem introduction and problem statement in the textbook should be amended, and that various information and activities should be presented in the textbook.

• International Journal of Computer Science & Network Security
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• 제23권10호
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• pp.11-20
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• 2023

The primary aim of this study is to investigate the influence of Service Provider Quality (SPQ), System Quality (SQ), Information Quality (IQ), and Training Quality (TQ) on the interconnected aspect of organizational performance known as growth and development (GD). The study examined the influence of information systems (IS) on organisational performance and provided a theory-based technique for conducting research. The theoretical foundation for this study is derived from the widely employed [1]. IS success model in information systems research. The study's framework incorporates several novel elements, drawn from a comprehensive review of both recent and earlier literature, which researchers have utilized to evaluate the dimensions of [1]. In this study, we collected data from a diverse group of 348 individuals representing various industries through a web-based questionnaire. The collected data were subjected to analysis using SPSS. We conducted a multiple regression analysis involving 15 factors to assess several hypotheses regarding the relationship between the independent construct IS effectiveness and the dependent construct organizational performance. Several noteworthy descriptive statistics emerged, which hold significance for management. The study's findings strongly indicate that information systems exert a significant and beneficial influence on organizational performance. To sustain and continually enhance organizational effectiveness, the study recommends that managers periodically scrutinize and assess their information systems.

• Journal of Information Processing Systems
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• 제7권2호
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• pp.321-340
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• 2011

In this article, the current technological state of OPC (Openness, Productivity, and Collaboration; formerly "OLE for Process Control") standards and the problem statement of these OPC standards are discussed. The development of an OPC clientserver framework for monitoring and control systems is introduced by using the new OPC Unified Architecture (UA) specifications, Service Oriented Architecture (SOA), web services, XML, etc. The developed framework in turn minimizes the efforts of developers in learning new techniques and allows system architects and designers to perform dependency analysis on the development of monitoring and control applications. The potential areas of the proposed framework and the redundancy strategies to increase the efficiency and reliability of the system are also represented according to the initial results from the system that was developed by the Visual Studio 2008 and OPC UA SDK.

• 통상정보연구
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• 제9권2호
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• pp.231-253
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• 2007

This paper intends to develop an performance evaluation framework of e-trade. The Korea e-trade has been largely attracting many research communities because it brings about e-trade platform which is happening at the early stage of information system maturity. It is true that many research works have been focusing on development issues in e-trade but not much works have been done in e-trade performance study. This paper suggests an e-trade performance framework based on both field and literatures surveys. In addition, an factor analysis model has been introduced to determine that the suggested factors are empirically supporting the hypotheses in the model. Since this paper is opening up many research issues in e-trade performance study many research group could participate in this research area.