• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2018년도 춘계학술발표대회
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• pp.194-197
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• 2018

EDISON 웹 포털을 기준으로 경진대회 시스템을 구축하기 위해서는 다양한 전문분야의 역할의 분담이 필요하다. 또한 사용자의 팀 구성, 평가 반영 결과의 가시화 등의 구체적인 서비스 분할과 사용자에게 부여된 권한에 따른 서비스 차별화가 필요하다. 따라서 본 논문에서는 경진대회를 진행함에 있어 다양한 사용자의 권한에 기반하여 경진대회 서비스를 구축하였다. 또한 현재 서비스를 구축하고 경진대회를 진행하였으며, 그 결과 각 사용자의 권한에 따른 서비스를 분할하여 제공하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권2호
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• pp.691-708
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• 2014

This paper formalizes a special type of social networking knowledge, which is called "workflow performer-role affiliation networking knowledge." A workflow model specifies execution sequences of the associated activities and their affiliated relationships with roles, performers, invoked-applications, and relevant data. In Particular, these affiliated relationships exhibit a stream of organizational work-sharing knowledge and utilize business process intelligence to explore resources allotting and planning knowledge concealed in the corresponding workflow model. In this paper, we particularly focus on the performer-role affiliation relationships and their implications as organizational and business process intelligence in workflow-driven organizations. We elaborate a series of theoretical formalisms and practical implementation for modeling, discovering, and visualizing workflow performer-role affiliation networking knowledge, and practical details as workflow performer-role affiliation knowledge representation, discovery, and visualization techniques. These theoretical concepts and practical algorithms are based upon information control net methodology for formally describing workflow models, and the affiliated knowledge eventually represents the various degrees of involvements and participations between a group of performers and a group of roles in a corresponding workflow model. Finally, we summarily describe the implications of the proposed affiliation networking knowledge as business process intelligence, and how worthwhile it is in discovering and visualizing the knowledge in workflow-driven organizations and enterprises that produce massively parallel interactions and large-scaled operational data collections through deploying and enacting massively parallel and large-scale workflow models.

• 한국자동차공학회논문집
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• 제18권2호
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• pp.39-47
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• 2010

As vehicles become intelligent for convenience and safety of drivers, in-vehicle networking (IVN) systems are essential components of intelligent vehicles. Recently, the chassis networking system which require increased network capacity and real-time capability is being developed to expand the application area of IVN systems. Also, FlexRay has been developed for the chassis networking system. However, FlexRay needs a complex scheduling method of static segment, which is a barrier for implementing the chassis networking system. Especially, if we want to migrate from CAN network to FlexRay network using CAN message database that was well constructed for the chassis networking system by automotive vendors, a novel scheduling method is necessary to be able to reduce design complexity. This paper presents a node-based scheduling method for FlexRay network system. And, in order to demonstrate the method's feasibility, its performance is evaluated through an experimental testbed.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권5호
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• pp.2267-2285
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• 2016

Information Centric Networking that uses content name instead of IP address as routing identifier can handle challenges such as traffic explosion and user mobility, but it also suffers from scalability and incompatibility problems. In this paper by combining the concept of software defined networking and Internet end to end arguments, we propose a wide area deployable software defined information centric networking service model named SD-ICN. SD-ICN employs a dual space structure that separates edge service network and core transmission network. The enhanced SDN techniques are used in edge service network in order to implement intelligent data routing and caching, while traditional IP technique is reserved in core transmission network so as to provide wide area high speed data transmission. Besides, a distributed name resolution system based on the cooperation of different controllers is also presented. The prototype experiments in our campus network show that SD-ICN can be deployed in a scalable and incremental way with no modification of the core network, and can support typical communication modes such as multicast, mobility, multihoming, load balancing, and multipath data transmission effectively.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.563-564
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• 2017

클라우드 컴퓨팅 기술의 핵심은 데이터 센터이며 데이터 센터 내에서는 네트워킹 기술이 중요하다. 클라우드 데이터 센터에는 수만에서 수십만 개의 물리적 서버로 구성되어 있어서 높은 수준의 데이터 전송이 가능한 네트워킹 기술이 필요하다. 이러한 네트워킹 기술은 또한 확장성과 고장 감내성 등이 필요하며 민첩성이 필요하다. 이를 위해 다양한 다중 경로를 이용하는 기법이 제안되었다. 하지만 주로 부하 균형을 위한 기법이나 임의적으로 경로를 선택하는 데 사용되었다. 본 논문에서는 소프트웨어 정의 네트워킹 기술을 이용하여 다중 경로를 구성하고 다중 경로를 이용하여 트래픽을 병렬 전송함으로써 빠른 전송속도를 가져오며, 확장성 문제를 해결하고 고장 발생 시에 감내할 수 있는 기술을 제안한다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 B
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• pp.592-595
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• 2003

In this paper, we have designed a Home Networking System using an embedded linux board. The system based on the World-Wide-Web is composed of three parts - a Server, a Client and a Simulator. The Home Networking Server is built in an embedded board using an embedded linux kernel. A web-server and Home Networking Server Seryice Demon programming with a Jaya-Language is included in the board. Clients can connect to the server board using a web-browser in the desktop computer, PDA or any other machines which include a web-browser. For this purpose, we made the client program using a Java-Applet. So, the clients who connect to the server for the control of the applications, download the class-file and execute the client-program in the web-browser. So, the clients don't need any other programs to control the applications from a remote place. The size of server board is very small (86.3$\times$74mm), which makes it very useful not only for the Home-Networking-System but also in many other fields, e.g., embedded robot control system, etc. Using an embedded board instead of a desktop computer is good for a simple network environment and it occupies only a small space to make the system.

• 한국학교보건학회지
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• 제28권3호
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• pp.248-255
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• 2015

Purpose: This study was conducted to explore the relationship between high school students' mental social health and their tendency toward social networking addiction. Methods: The subjects were 543 high school boys and girls living in D city. The data were collected from the 3rd to 21st of March in 2014. Data were analyzed using t-test, ANOVA, Duncan's post-hoc test, Pearson's correlation analysis, and hierarchical regression with SPSS/ Win 21.0. Results: Social networking addiction showed significant differences depending on gender (t=-7.03, p<.001), academic achievement (t=4.571, p=.011), and the level of maternal education (t=3.344, p=.019). Social health was correlated with the tendency toward social networking addiction. Multiple regression analysis found that gender, academic achievement and social health were associated with the level of social networking addiction (F=8.750, p<.001, Adj. $R^2=.201$). Conclusion: The results suggest that it is necessary to take into account gender characteristics, academic achievement and social health in order to develop effective management programs for social networking addiction among high school students.

• International Journal of Computer Science & Network Security
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• 제21권9호
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• pp.297-302
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• 2021

The development of various phishing websites enables hackers to access confidential personal or financial data, thus, decreasing the trust in e-business. This paper compared the detection techniques utilizing URL-based features. To analyze and compare the performance of supervised machine learning classifiers, the machine learning classifiers were trained by using more than 11,005 phishing and legitimate URLs. 30 features were extracted from the URLs to detect a phishing or legitimate URL. Logistic Regression, Random Forest, and CatBoost classifiers were then analyzed and their performances were evaluated. The results yielded that CatBoost was much better classifier than Random Forest and Logistic Regression with up to 96% of detection accuracy.

• ETRI Journal
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• 제44권6호
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• pp.903-914
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• 2022

Mobile and telecommunication networking uses temporary and random identifiers (IDs) to protect user privacy. For greater intelligence and security o the communications between the core network and the mobile user, we design and build a dynamic randomization scheme for the temporary IDs for mobile networking, including 5G and 6G. Our work for ID randomization (ID-RZ) advances the existing state-of-the-art ID re-allocation approach in 5G in the following ways. First, ID-RZ for ID updates is based on computing, as opposed to incurring networking for the re-allocation-based updates, and is designed for lightweight and low-latency mobile systems. Second, ID-RZ changes IDs proactively (as opposed to updating based on explicit networking event triggers) and provides stronger security (by increasing the randomness and frequency of ID updates). We build on the standard cryptographic primitives for security (e.g., hash) and implement our dynamic randomization scheme in the 5G networking protocol to validate its design purposes, which include time efficiency (two to four orders of magnitude quicker than the re-allocation approach) and appropriateness for mobile applications.

• 한국산학기술학회논문지
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• 제10권11호
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• pp.3354-3362
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• 2009

최근 신생벤처 창업가의 네트워크 활동이 성공적인 창업을 좌우한다는 선진연구 가능성이 주목받는 가운데, 본 연구는 창업가의 인지적 특성인 자아효능감과 심리적 특성인 모호성 인내가 네트워크 활동에, 그리고 네트워크 활동의 구성요소들이 기업성과에 미치는 영향에 대해 탐색적으로 연구하는데 그 주된 목적으로 했다. 창업한지 3년 미만의 신생벤처 기업의 창업가 156명의 설문지 응답을 표본으로 검증하였다. 연구결과, 첫째, 창업가의 자아효능감은 네트워킹과 기업성과에 각각 유의한 영향을 미치는 것으로 나타났다. 둘째, 모호성 인내는 네트워킹과 기업성과에 모두 유의한 영향을 미치지 않는 것으로 분석되었다. 셋째, 네트워킹은 기업성과에 영향을 미치는 것으로 나타났으며, 네트워크 활동의 구성요소 중 네트워크 빈도와 신뢰는 기업성과에 유의한 영향을 미치는데 반해, 네트워크 범위는 유의한 영향을 미치지 않는 것으로 분석되었다. 따라서 신생벤처 기업의 성과향상을 위해서는 창업가의 심리적 특성 보다는 인지적 특성인 자아효능감이 더 중요하다고 볼 수 있다. 또한 신생벤처 창업가의 네트워크 활동의 경우, 네트워크 빈도와 신뢰가 네트워크 범위 보다 기업성과에 더 중요한 영향을 미칠 수 있다는 실무적 시사점과 함께 연구한계 및 연구방향을 제시하고 있다.