연관관계를 이용한 지능형 추천 프로세스 시뮬레이션

DDoS attacks is upgrade of DoS attacks. Botnet is being used by DDoS attack, so it is able to attack a millions of PCs at one time. DDoS attacks find the root the cause of the attack because it is hard to find sources for it, even after the treatment wavelength serious social problem in this study, the analysis and countermeasures for DDoS attack is presented. Key Words : Packet attack detection, route security, Distributed denial of service, DDoS detection algorithm, Network Received 15 October 2013, Revised 17 December 2013Accepted 20 January 2014Corresponding Author: Sunghyuck Hong(Baekseok University)Email: shong@bu.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

본 연구는 모바일 앱을 이용하여 건강관리에 필요한 운동량의 관리 및 현재 운영 중인 건강관리 수강과목을 조회하고 수강을 원하는 과목을 등록할 수 있으며 등록한 일정표와 월간 헬스성과를 한눈에 확인하는 시스템으로 설계하였다. 간단한 스마트폰 QR스캐닝을 통한 인증으로 별도 Sensor의 승인없이 자동으로 일일운동 정보가 서버로 전송되는 장점이 헬스클럽관리시스템의 장점이다. 헬스클럽의 각종 시설 및 서비스의 전반적인 운영 사항이 스마트 폰을 통하여 원격지 서버에 데이터로 전송되므로 직장인 및 학생, 주부 등 다양한 계층의 인원이 쉽게 WiFi, LTE, 3G 등으로 손쉽게 헬스클럽관리시스템에 접근하여 이용할 수 있다. This study has designed the system that can manage the amount of exercise required for health management, viewing the health management courses which are currently being operated, register the desire courses and verifying the registered schedules and monthly health performances at a glance by using a mobile application. The advantage of health club management system is automatically transmits the daily exercise information to the server without a separate sensor through a simple QR scanning using a smart phone. Since the overall operating requirements of services and various facilities of health club is transmitted as the data to the remote server through a smart phone, users of various levels including workers, students, housewives, etc can easily access and use the health club management system using the WiFi, LTE, 3G, etc.

Generally, although securing the condition and location of container freights or normal freights, which load a fresh goods, has been a very important issue in the cold-chain system implementations, it has not gotten out of the traditional methods in the related business world yet. To solve this problem, we propose the designing method and architecture which can be used to implement a smart cold-chain monitoring automation systems. The proposed system architecture is based on the oneM2M standards, and it has 3 layers and entities, which can be implemented to S/W and H/W, network services layer and entity, common services layer and entity, application layer and entity. Based on this architecture, we will not only expect an innovative retrenchment of distribution cost, but also automatically secure the freight condition and location. Key Words : Internet of Things, Smart Cold-Chain, Automation, Monitoring, Architecture * 이 논문은 2014년 백석대학교 대학연구비에 의하여 수행된 것임Received 19 October 2014, Revised 25 November 2014Accepted 20 December 2014Corresponding Author: Jung-Soo Han(Baekseok University) Email: jshan@bu.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

Metering scheme is composed of servers, clients, and an audit agency who collects the information for the clients which have been processed by servers. Although many efficient and secure metering schemes have been proposed in the literature, they do not consider the client privacy issue. To mitigate this limitation of the related work, we propose a metering scheme to protect the privacy of clients in internet. More specifically, we apply RSA based blind signature to the interaction between client and audit agency. If a client spends metering information to the server more than twice, the identity of the client is revealed by the server or audit agency. Key Words : metering scheme, privacy, security, blind signature, Hash Function * 본 논문은 2013학년도 서울여자대학교 컴퓨터과학연구소 교내학술연구비의 지원을 받았음Received 11 March 2013, Revised 5 April 2013Accepted 20 May 2013Corresponding Author: Choon-Sik Park(Seoul Women's University) Email: csp@swu..ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, ISSN: 1738-1916 provided the original work is properly cited.

The accountability of cloud service which provides the cloud users with accountable services applies various technologies such as the compliance of service policy, monitoring and auditing, logging, and others. It ultimately intends to provide trustworthy cloud service by determining who is accountable for various problems happened during data processing and service offering. In this paper, we propose a cloud ecosystem formed from the chain of content and DRM Cloud service in order to offer secure and trust DRM cloud service when providing high value-added content service. Besides this, we analyse the requirements of cloud services for content owners and users and then propose some logging information to be recorded for trace of accountability and a structure of tool for monitoring. Key Words : Cloud computing, Accountability, Digital rights management, Content Service, Monitoring * 이 논문은 2011년도 정부(미래창조과학부)의 재원으로 한국연구재단-차세대정보ㆍ컴퓨팅기술개발사업의 지원을 받아 수행된 연구임(No. 2011-0029927)Received 13 October 2014, Revised 17 November 2014Accepted 20 December 2014Corresponding Author: Sang Uk Shin(Pukyong National University) Email: shinsu@pknu.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

This study was to performed to get the reference data of the kinetic parameters for normal subjects according to the arm swing type. Forty-five normal subjects(22.62±2.69 years) pariticpated in this study and preformed 4 sequence according to the arm swing type as follows; first procedure-normal arm swing, second procedure-one arm swing, thrid procedure-no arm swing, fourth procedure-fitness arm swing. There were significant differences according to the arm swing type in the kinetic parameters such as walking speed, hip power, ground reaction force of vertical in terminal stance phase(p<.05). These finding can be utilized (a) as a reference for kinetic data of gait analysis in normal subjects, and (b) as an aide in evaluating and treating patients who have problems relating to gait. Key Words : Arm Swing, Kinetic, Walking Speed, Power, Ground Reaction Force Received 12 September 2014, Revised 22 October 2014Accepted 20 November 2014Corresponding Author: Hwa-young Cho(Dept. of Occupational Therapy, Seonam University) Email: sthingtosone@naver.comⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

Recently, smartphone are increasing in Internet-enabled applications to install and delete benefits as well as internet through various interfaces such as 3G network, Wi-Fi, Wibro without the constraints of time and place. However, the prevalence of smartphones and the activity was generated from an existing PC smartphone security threats are causing a ripple in a society. In this paper, we serve live content services on the first and last content by creating an electronic signature is the signature of either the loss of any Content provided by both authentication and non-repudiation content protection scheme is proposed. The proposed method of secure smartphone users to download and install the content or an application for downloading content over the content for secure authentication. Key Words : Smartphone, Malware attack, Content Security Received 1 March 2014, Revised 31 March 2014Accepted 20 April 2014Corresponding Author: Yoon-Su Jeong(Mokwon University) Email: bukmunro@mokwon.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

효율적인 데이터베이스 마케팅을 위하여 고객들을 세분화하고, 새로운 지식을 탐색할 수 있는 데이터마이닝의 필요성이 증대되고 있다. 데이터마이닝 도구를 구축하기 위해서는 단계별 구현이 요구되어 지는데, 본 연구에서는 데이터마이닝을 위한 분산 환경에 적응 가능한 데이터 전처리 도구를 구성하였다. 기존의 데이터마이닝 도구인 앤서 트리, 클레멘타인, 엔터프라이즈 마이너, 캔싱턴, 웨카의 전처리 부분을 고찰하고, 분산 환경에서 효율적으로 사용할 수 있는 데이터 마이닝 전처리 도구를 구성하였다. 새로이 제안된 시스템은 엔터프라이즈 자바 빈즈와 XML을 기반으로 하였다. This paper is to construction of the data mining preprocessing tool for efficient database marketing. We compare and evaluate the often used data mining tools based on the access method to local and remote databases, and on the exchange of information resources between different computers. The evaluated preprocessing of data mining tools are Answer Tree, Climentine, Enterprise Miner, Kensington, and Weka. We propose a design principle for an efficient system for data preprocessing for data mining on the distributed networks. This system is based on Java technology including EJB(Enterprise Java Beans) and XML(eXtensible Markup Language).

In this paper, we proposed an arduino-based smart green house management system model and implemented it. The proposed system consists of control unit composed of sensors and arduino, agent program controlling the green house, and web applications providing user interfaces. The control unit transmits data of sensors such as temperature, humidity, illuminance, moisture, etc. to the agent program, and then the agent saves the data in its database. In reverse, control data are transmitted from agent program to control unit. Users can monitor sensed data of green houses and control actuators remotely using web. Plus, smart green house management is available by context awareness and autonomous control functions of the proposed system. Key Words : smart green house management, sensors, arduino, agent program, actuators, context awareness * 이 논문은 2011년도 한국연구재단 학술연구비에 의하여 지원되었음 (NRF-2011-0010627)Received 21 July 2014, Revised 29 August 2014Accepted 20 October 2014Corresponding Author: Hee-Dong Park (Korea Nazarene University) Email: hdpark@kornu.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

Health service quality is increasingly emphasized, and primary care service is no exception in this. This study identified patients' perception of quality considering convergence factors associated with increased utilization among patients over the age of 65 using community health centers. A total of 307 respondents were included in the analysis. The results showed that positive perceptions on facility and environment, patient-centered care, technical knowledge and skills of physicians, and emotional support with nurses and non-medical workers were statistically and significantly associated with higher utilization. In order to increase utilization of primary care service at community health centers, they need to manage and improve these factors. Key Words : Health service quality, Elderly, Community health center, Convergence factors * 이 연구는 2014년도 고려대학교 보건과학연구소 특별연구비를 지원받아 수행되었음.Received 9 June 2015, Revised 22 July 2015Accepted 20 August 2015Corresponding Author: Mankyu Choi(Korea University) Email: mkchoi@korea.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

Nowadays, because IT market expansion and complexity has been progressing and competition has intensified, there is a growth of information system building industries having difficulty through traditional business management methods. A survey was conducted among site personnel (Project Manager PM and Project Participants) to generate an institutional framework to efficiently manage this and project management process support. Through this, the importance of element technology and fragility of software development project management must be understood and an improvement of the element technology must be generated. By using this, a very relevant result that presented a logical basis was obtained in the decision making of the importance of project management and the role of overall project manager and core project management fields.Key Words : Business Information Services, Business Management System, Project Manager, Software Provider, Project Management * 이 논문은 2013년 공주대학교 학술연구지원사업의 연구비지원에 의하여 연구되었음Received 22 November 2014, Revised 24 December 2014Accepted 20 January 2015Corresponding Author: Koo-Rack Park (Kongju National University)Email: ecgrpark@kongju.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

We obtained medical test data of 150 male from National Health Insurance Corporation, that included physique, blood chemistry, and lifestyle. χ2-test and logistic regression, and multiple regression were done to verify how CAD risks and/or lifestyle are different between obese and non-obese person.SPSS(version 18) was used for statistical procedures and p-value of .05 was regarded as good through. χ2-test showed the frequency of hypertension, htperglycemia, hyperlipidemia were higher in obese person than in non-obeseThis result told us that lifestyle modification could be a key to prevent cardiovascular disease by controlling and managing body composition, especially abdominal obesity. Key Words : Life Style, Cardiovascular Disease, Smoking, Drinking, Job Type Received 28 December 2015, Revised 30 January 2016Accepted 20 February 2016, Published 28 February 2016Corresponding Author: Wan-Young Yoon(Seowon University) Email: dt5916@Seowon.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

The technological environment is rapidly affecting the way of shopping. When consumers go about retail activities, they not only use a single channel (e.g., traditional stores, mobile) but also combine different channels. This research focuses on the factors which influence the favorableness toward omni-channel shopping. Specifically, this paper investigates the effect of extraversion-introversion on the omni-channel shopping favorableness. Moreover, the effect of variety-seeking tendency is examined as a mediator. The results of an experiment using PROCESS program find that when participants are more extravert, they show greater favorableness toward omni-channel shopping and variety-seeking tendency mediates the effect of extraversion-introversion. Based on the findings, this research proposes managerial implications and several directions for further research. Key Words : Omni-channel shopping, Extraversion, Introversion, Variety-seeking tendency, Online, Mobile * 본 연구는 2014학년도 단국대학교 대학연구비 지원으로 연구되었음(R-0001-22219)Received 3 November 2015, Revised 5 December 2015Accepted 20 January 2016Corresponding Author: Dongwon Min(School of Business, Dankook University) Email: dwmin@dankook.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

Most people think that our brain and mind are separate, however, they are closely connected. With this idea, we can heal the sickness of our brain and mind. People understand their lives better through the process of 'Identification-Catharsis-Insight' by reading literatures. In addition, they can speak out from their suppressed heart and take comfort when they write. Therefore, they will enjoy the self-healing effects. In this regard, we can help the people who are suffering from their brain damages or people who have wounded heart using literatures, and heal their mind. Key Words : Brain, Mind, Healing, Literature, Writing Received 24 October 2014, Revised 26 November 2014Accepted 20 December 2014 Corresponding Author: Da-Young Ryu (Jungwon University) Email: modestar99@jwu.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

Internet Data is hugely increased for high quality multimedia services and the related techniques is also developed rapidly. This paper is aimed to develop integrated internet data and Digital-Television receiving system with high performance and optimization, which is obtained by one-board integration with load control. It is applicable to various devices like computer, set-top box, home multimedia gateway etc. The performance is proved by evaluation test. It shows that the developed device can be TV tuner and internet AP for more robust multimedia services. Key Words : IPTV, Internet data, TV, Home Gateway, Set-Top Box Received 9 April 2013, Revised 29 April 2013Accepted 20 May 2013Corresponding Author: Eui-Seok Nahm(Dept. Ubiquitous IT, Far East Univ.) Email: nahmes@kdu.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.ISSN: 1738-1916