• Information Systems Review
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• v.22 no.2
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• pp.201-217
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• 2020

Information security is an essential element not only to ensure the operation of the company and trust with customers but also to mitigate uncertain damage by preventing information data breach. Therefore, It is important to select appropriate information security countermeasures and determine the appropriate level of investment. This study presents a decision support model for the appropriate investment amount for each countermeasure as well as an optimal portfolio of information countermeasures within a limited budget. We analyze statistics on the types of information security breach by industry and derive an optimal portfolio of information security countermeasures by using genetic algorithms. The results of this study suggest guidelines for investing in information security countermeasures in various industries and help to support objective information security investment decisions.

• Korean Journal of Legislative Studies
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• v.27 no.1
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• pp.117-155
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• 2021

The purpose of this study is to identify the relationship between people's ideological orientation and the populist attitude in terms of demand of populism. The influence of subjective ideology evaluation and political party support on anti-elitism (AE), people centrism (PC) and anti-pluralism (AP) are analyzed in detail. To research this, the socioeconomic factors, democracy recognition and the method of political participation are set as control variables, and the ideologies are classified into extreme conservative, conservative, moderate, progress, and extreme progress. The data are collected through nationwide online survey. The results of the analysis are as follows: First, the powerful affinity between ideological orientation and populist attitude are confirmed. The support for conservative ideology (especially extreme conservative) and the conservative party are affecting the AE and AP, and the ideology of extreme progress and support for the progressive party are influencing the PC and AP. When putting together 3 types of attitude, the conservative (especially extreme conservative) and extreme progressive ideology are the factors that determine the populism attitude. Second, There was no impact of socioeconomic variables except gender (female) and age. Third, populist attitude have a multidimensional nature determined by democratic satisfaction, government trust, external efficacy, voting and non-voting activities.

• Journal of the Korea Society of Computer and Information
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• v.18 no.3
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• pp.35-45
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• 2013

MANET has a weak point because it allows access from not only legal nodes but also illegal nodes. Most of the MANET researches had been focused on attack on routing path or packet forwarding. Nevertheless, there are insuffcient studies on a comprehensive approach to detect various attacks on malicious nodes at packet forwarding processes. In this paper, we propose a technique, named DTecBC (detection technique of malicious node behaviors based on collaboration), which can handle more effciently various types of malicious node attacks on MANET environment. The DTecBC is designed to detect malicious nodes by communication between neighboring nodes, and manage malicious nodes using a maintain table. OPNET tool was used to compare with Watchdog, CONFIDANT, SRRPPnT for verifying effectiveness of our approach. As a result, DTecBC detects various behaviors of malicious nodes more effectively than other techniques.

• The Journal of the Korea Contents Association
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• v.19 no.12
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• pp.184-192
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• 2019

In the domestic cosmetics market, it is important to secure high customer loyalty in order to stably enter the market. To do this, customers should have a deep sense of trust and bond through the authenticity of the brand. At this time, among the components of brand authenticity, only corporate authenticity has a positive effect on customer brand attachment and loyalty. This paper suggests marketing strategies based on CSR activities that can most effectively show corporate authenticity. First, only cases where the activity was continued for more than one year and the activity contents and results were clear and recognized for authenticity were selected. Twenty cosmetic brands met this condition and 28 CSR activities which conducted by the brand are analyzed. The characteristics of each area were derived by dividing it into four areas of desirable society presented by the EU, and a marketing strategy for each type was presented. This research will be of practical help in conducting CSR activities later in the enterprise.

• Journal of Korea Society of Industrial Information Systems
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• v.11 no.3
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• pp.96-107
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• 2006

This paper explores the benefits provided by the adoption and implementation of electronic commerce in a particular SME-intensive productive environment: the geographical cluster. This study develops a conceptual framework that highlights the six types of benefits obtained by integrating online business with offline business. Using data from 73 traditional companies in Korean port clusters, factor analysis was used to figure out six benefits including sharing information, cost savings, value-added service, customer relationship, enhanced trust, and marketing efficiency. The six empirically derived critical benefit factors were then used to examine how they improve management performance of the traditional offline companies in the cluster measured by Balanced Scorecard(BSC). According to the results, we concluded that the offline firms in the cluster can take advantages of extending to online business.

• Current Industrial and Technological Trends in Aerospace
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• v.6 no.2
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• pp.3-10
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• 2008

Lee, Myung-bak Administration comprises the plan to foster the Universities as a world's research and development point, and to strengthen the Institute-Academia Collaboration for the knowledge based economy in the new plan of science and technology. In addition, by participating Universities into the medium-and long-term research business of government-supported institute, it is expected to strengthen the basic initiative research, revitalize the joint study conducted by the universities and government-supported institute, and to reshuffle the statutes to promote personnel exchanges between the universities and government-supported institute. Universities role as a principle of innovation in the field of Aerospace is getting its weight so that the necessity of the institute-academia collaboration is increasing. Types of the Institute-Academia Collaboration can be categorized into the Joint-Study, internships for the students in Masters and Ph. D. programs, Professor-Researcher Exchange, Joint Research Lab, and Joint Postgraduate Course, and those are the cases from the U.S., Brazil, Germany, France, Japan, and Korea. High mutual reliance on the research subject, mutual trust on the research capability, and abundant and flexible capabilities in sources are required to make a success in Institute-Academia Collaboration.

• Convergence Security Journal
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• v.14 no.4
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• pp.3-8
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• 2014

Wireless Ad hoc Network is threatened from many types of attacks because of its open structure, dynamic topology and the absence of infrastructure. Attacks by malicious nodes inside the network destroy communication path and discard packet. The damage is quite large and detecting attacks are difficult. In this paper, we proposed attack detection technique using secure authentication infrastructure for efficient detection and prevention of internal attack nodes. Cluster structure is used in the proposed method so that each nodes act as a certificate authority and the public key is issued in cluster head through trust evaluation of nodes. Symmetric Key is shared for integrity of data between the nodes and the structure which adds authentication message to the RREQ packet is used. ns-2 simulator is used to evaluate performance of proposed method and excellent performance can be performed through the experiment.

• Journal of KIISE
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• v.43 no.1
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• pp.96-105
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• 2016

Recently, social network services have changed by moving towards an open platform where, as well as simply allowing the building of relationships among users, various types of information can be generated and shared. Since existing user reputation management methods evaluate user reliability based on user profiles, explicit relations, and evaluation, they are not suitable for determining user reliability on social media due to few explicit evaluation. In this paper, we analyze social activities on social media and propose a new user reputation management method that considers implicit evaluation as well as explicit evaluation. The proposed method derives positive and negative implicit evaluation from social activities, and generates user reputation information by field in order to consider user expertise. It also considers the number of users that participate in evaluation in order to measure user influence. As a result, it generates the reputation information of users who have no explicit evaluation and creates user reputation information that is more suitable for social media.

• Journal of Korea Port Economic Association
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• v.27 no.3
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• pp.13-39
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• 2011

Many previous studies on the subject of supply chain have consistently claimed that they need collaboration among the partners of supply chains in order to enhance supply chain performance. The purpose of research is to examine the causal linkages among relational characteristics, collaboration, performance in the logistics firm and this research focuses on two types collaboration(operational collaboration and strategic collaboration) as the mediation variable between relational characteristics and supply chain performance. To test the above research questions, we collected data from logistics firm(N=164). The proposed structural model was tested using the PLS(Partial Least Square) statistical program. The research results are as follows. Trust, and information sharing have positive influences on operational collaboration, and operational collaboration have also positive influences on supply chain performance. Duration and information sharing have positive influences on strategic collaboration. However, strategic collaboration has non-positive influences on supply chain performance. The effect of relational characteristics on supply chain performance is mediated by operational collaboration.

• Journal of Korea Society of Industrial Information Systems
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• v.19 no.4
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• pp.73-85
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• 2014

The service quality customers perceived has positive relationships with trust, image, and satisfaction toward airline companies. Providing personal and non-personal services could be factors that build up not only overall impressions but positive and negative emotions and could be connected to customer behavioral intention. Thus, this research divided service encounter quality into personal and non-personal encounter quality and investigated effects of two types of service encounter quality on airline image, perceived value and customer loyalty. The result shows that personal service encounter quality has a positive effect on airline image and a negative effect on perceived value. Non-personal service encounter quality has an influence on airline image and a negative influence on perceived value. Personal service encounter quality does not have a significant effect on customer loyalty but non-personal service encounter quality has an effect on customer loyalty. Airline image does not affect perceived vlaue significantly however, do affect customer loyalty. Finally, perceived value does not have a significant effect on customer loyalty.