• 한국HCI학회:학술대회논문집
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• 2007.02b
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• pp.612-619
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• 2007

컴퓨터의 공손성은 사용자에게 심리적으로 긍정적인 영향을 미칠 수 있는 중요한 요소이다. 본 연구는 사용자와 에이전트의 상호작용에서 에이전트의 언어적 메시지에 사용된 공손전략과 에이전트에 대한 지각된 친밀성이 이 에이전트 평가, 사용자 경험, 메시지의 지각된 공손성에 미치는 영향에 대해 알아보았다. 실험은 2(지각된 친밀성)${\times}2$ (적극적 공손 전략)${\times}2$ (소극적 공손 전략) 완전요인 설계로 실시되었다. 실험 결과, 사용자들은 에이전트가 적극적, 소극적 체면을 존중해 주는 공손 전략을 사용하였을 경우 에이전트를 보다 긍정적으로 평가하고 상호작용을 긍정적으로 경험하였으며, 메시지가 공손하다고 지각하였다. 또한 이러한 효과는 에이전트에 대한 지각된 친밀성 정도에 따라 다르게 나타났다. 친밀한 에이전트와 상호작용하였을 경우 적극적 체면을 위협하는 메시지의 부정적 효과가 완화되었으며 소극적 체면을 존중하는 간접적인 화법의 메시지보다 직접적으로 요구를 전달하는 소극적 체면을 위협하는 메시지가 긍정적으로 평가되었다. 이 결과는 에이전트 메시지에 공손전략을 부여하는 것이 에이전트에 대한 호의적 평가와 긍정적 사용자 경험을 이끌어낼 수 있음을 보여주는 것과 동시에 사용자와 에이전트의 관계 발달 정도에 따라 에이전트 메시지에 사용된 공손 전략의 설계가 변화해야 한다는 것을 시사한다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.29 no.4
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• pp.821-834
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• 2019

As cyber security threats increase, there is a growing demand for highly reliable systems. Common Criteria, an international standard for evaluating information security products, requires formal specification and verification of the system to ensure a high level of security, and more and more cases are being observed. In this paper, we propose highly reliable drone systems that ensure high level security level and trust. Based on the results, we use formal methods especially Z/EVES to improve the system model in terms of scheduling in the system kernel.

• The KIPS Transactions:PartD
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• v.13D no.1 s.104
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• pp.67-74
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• 2006

The security requirements identification in the software development has received some attention recently. However, previous methods do not provide clear method and process of security requirements identification. We propose a process that software developers can build application specific security requirements from state transition diagrams at the security threat location. The proposed process consists of building model and identifying application specific security requirements. The state transition diagram is constructed through subprocesses i) the identification of security threat locations using security failure data based on the point that attackers exploit software vulnerabilities and attack system assets, ii) the construction of a state transition diagram which is usable to protect, mitigate, and remove vulnerabilities of security threat locations. The identification Process of application specific security requirements consist of i) the analysis of the functional requirements of the software, which are decomposed into a DFD(Data Flow Diagram; the identification of the security threat location; and the appliance of the corresponding state transition diagram into the security threat locations, ii) the construction of the application specific state transition diagram, iii) the construction of security requirements based on the rule of the identification of security requirements. The proposed method is helpful to identify the security requirements easily at an early phase of software development.

• Korean Journal of Cognitive Science
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• v.30 no.3
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• pp.157-174
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• 2019

Motivation of human individuals to perform on intellectual tasks can be hampered by identity threat from intellectual machines. A laboratory experiment examined whether individuals' performance loss on intellectual tasks appears under human identity threat. Additionally, by affirming alternative attributes of human identity, researchers checked whether group-affirmation alleviate the performance loss on intellectual tasks. This research predicted that under high social identity threat, individuals' performance loss on the intellectual tasks would be moderated by valuing alternative attributes of human identity. Experiment shows that when social identity threat is increased, human individuals affirmed alternative human attributes show higher performance on intellectual tasks than individuals non-affirmed. This effect of human-group level affirmation on performance loss did not appear in the condition of low social identity threat. Theoretical and practical implications were discussed.

• Korean Journal of Legislative Studies
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• v.22 no.2
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• pp.53-75
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• 2016

This article presents a descriptive analysis on national security policy platforms promoted by the ruling parties of South Korea during general and presidential elections. National security platforms made during the elections campaigns are a window that allows us to see how the ruling party perceives the threat environment, opportunity-structures, policy preferences and material capabilities faced by the state. South Korea presents a unique case since it faces constant military threats from North Korea and interacts with China and the United States. Therefore, the national security policy platforms, which are explicitly campaigned during the general and presidential elections, showcases the worldview of the ruling party. The study essentially focuses on three areas of the platforms - its threat perception on North Korea, the ROK-US alliance and the future vision for the Korean peninsula by covering two presidential elections and three general elections for the last 20 years.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.26 no.1
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• pp.169-176
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• 2016

Android platform is designed to be user-friendly, yet sometimes its convenience introduces vulnerabilities that normal users cannot justify. In this paper, after making an overview of popular open source analysis tools for android applications, we point out the dangerous use of Permission Group in current Google Policy, and suggest a technique to mitigate the risks of privilege escalation that attackers are taking advantage of. By conducting the investigation of 21,064 malware samples, we conclude that the proposed technique is considered effective in detecting insecure application update, as well as giving users the heads-up in security awareness.

• Journal of Hospice and Palliative Care
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• v.10 no.2
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• pp.67-73
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• 2007

To make ones life meaningful is one of human's most valuable goal. Nevertheless, for cancer patients who are in the last phase of their lives obtaining this goal may be threatened by physical, psychological, and social difficulties. Music therapy ran be utilized to effectively fill in these physical, psychological, and social needs. In the form of a creative art, music therapy can be effective in easing the pain and tension as well as assisting the patient to discover meanings of life through psychological comfort. Further, music is itself a verbal/non-verbal communication tool and thus connects the patients with their families with understanding and sympathy. This study aims to examine the need and role of music therapy in hospice.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.28 no.6
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• pp.1563-1583
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• 2018

With the deregulation of electronic finance, FinTech has been revitalized. The discussion on artificial intelligence is active in the financial industry. However, there is a problem of increasing security threats behind new technologies. Security vulnerabilities have increased because we are more connected than before, and the channels and entities of the financial industry have diversified. Although there are technical and policy discussions on security, the essence of all discussions is human. Fundamentals of finance are trust and security, and attention to human factors is important. This study presents the role of human and artificial intelligence for financial security, respectively. Furthermore, this derives a collaborative model in which human and artificial intelligence complement each other's limitations. To support this, it first discusses the development of finance and IT, AI, human factors, and financial security threats. This study suggests that the security threats will intensify in the era of new technology, but it can overcome them by using machinery and technology.

• Journal of the Korean Regional Science Association
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• v.36 no.4
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• pp.57-67
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• 2020

This study aims to analyze influential factors of residents' housing instability in Korean large cities. The previous studies deal with low-income households' experiences with housing instability. However, this study empirically analyzed the impact of regional characteristics such as spatial openness and community characteristics on residents' housing instability. For this purpose, I analyzed various experiences as symptoms of residents' housing instability using data from the Ministry of Land, Infrastructure, and Transport's (MOLIT) Korean Housing survey through a multi-level logistic regression model. The study finds that regional factors as well as household characteristics influence their housing instability. This result implies that promoting spatial inclusivity alleviate residents' housing instability in metropolitan environments. In addition, this study calls for policy efforts such as a continuous supply of public rental housing and a greater variety of housing types to mitigate housing instability.

• Journal of Software Assessment and Valuation
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• v.16 no.2
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• pp.9-23
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• 2020

Microsoft's Windows system is widely used as an operating system for the desktops and enterprise servers of companies or organizations, and is a major target of cyber attacks. Microsoft provides various protection technologies and strives for defending the attacks through periodic security patches, however the threats such as DLL injection and process injection still exist. In this paper, we analyze 12 types of injection techniques in Microsoft Windows, and perform injection attack experiments on four application programs. Through the results of the experiments, we identify the risk of injection techniques, and verify the effectiveness of the mitigation technology for defending injection attacks provided by Microsoft. As a result of the experiments, we have found that the current applications are vulnerable to several injection techniques. Finally, we have presented the mitigation techniques for these injection attacks and analyzed their effectiveness.