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Featured researches published by Hyosik Ahn.


International Conference on Advanced Communication and Networking | 2011

User Authentication Platform Using Provisioning in Cloud Computing Environment

Hyosik Ahn; Hyokyung Chang; Changbok Jang; Euiin Choi

Cloud computing is a computing environment centered on users and can use programs or documents stored respectivily in servers by operating an applied software such as Web browser through diverse devices on where users can access Internet as an on-demand outsourcing service of IT resources using Internet. In order to use these cloud computing service, a user authentication is needed. This paper proposed the platform for user authentication using provisioning in Cloud computing environment.


International Conference on Advanced Communication and Networking | 2011

Profile for Effective Service Management on Mobile Cloud Computing

Changbok Jang; Hyokyung Chang; Hyosik Ahn; Yongho Kang; Euiin Choi

Mobile Cloud Computing has become as a new IT paradigm because of the growth of mobile device like smartphone and appearance of Cloud Computing environment. This mobile cloud environment provides various services and IT resources according to users‘ requests, so an effective management of service and IT resources is required. Hence, this paper designs a profile on mobile cloud service platform in order to provide distributed IT resources and services to users based on context-awareness information. As the profile proposed in this paper uses context-aware information, it enables to provide more accurate personalized services and manage distributed IT resources.


international conference on hybrid information technology | 2011

Authentication Platform for Provisioning in Cloud Computing

Hyokyung Chang; Changbok Jang; Hyosik Ahn; Euiin Choi

Spreading of Cloud Computing draws users to ask for service provide that is more improved, faster, and securer. So, there come security issues in Cloud Computing continuously and there have been a lot of studies on authentication and accee control. Provisioning is a technology related to the process and action that prepare knowledge and resources and supply what needed in advance to find the opitimum among them. Provisioning is one of the technologies to make Cloud Computing more efficiently. This paper proposes an authentication for provisioing in Cloud Computing.


International Conference on Advanced Computer Science and Information Technology | 2010

Ontology Based Intelligent Monitoring-Control System

Sungdo Park; Hyosik Ahn; Euiin Choi

Recently, interests and studies in ubiquitous environment such as home network, intelligent building have been getting high and doing actively. Also, studies for development of intelligent system have been getting attention. Ontology which can provide free knowledge representation and expansion by reasoning needs suitable ontology model design according to application purpose. In this paper, we made the model using ontology for Monitoring-Control system and showed the process of suitable monitoring and control by context awareness. Hence, we proposed ontology based intelligent monitoring-control system which can provide the knowledge expansion and the state change.


Archive | 2012

User Authentication Using Context-Awareness RBAC Model on Cloud Computing

Hyosik Ahn; Changbok Jang; Hyokyung Chang; Euiin Choi

Cloud Computing has been spreading widely, users and service providers enables to use resource or service cheaply and easily without owning all the resource needed. However, Cloud Computing has some security issues such as virtualization technology security, massive distributed processing technology, service availability, massive traffic handling, application security, access control, and authentication and password. User authentication among them requires a high-quranteed security. In this paper propose to context-awareness RABC model that based on profile about which user’s information which provided efficiently access control to user through active classification, inference and judgment about user who access to system and resource.


international conference on future generation communication and networking | 2010

A Study of Context-Awareness RBAC Model Using User Profile on Ubiquitous Computing

Bokman Jang; Sungdo Park; Hyokyung Chang; Hyosik Ahn; Euiin Choi

Recently, With the IT technique growth, there is getting formed to convert to ubiquitous environment that means it can access information everywhere and every-time using various devices, and the computer can decide to provide useful services to users. But, in this computing environment will be connected to wireless network and various devices. According to, recklessness approaches of information resource make trouble to system. So, access authority management is very important issue both information resource and adapt to system through founding security policy to need a system. So, this model has a problem that is not concerned about user’s context information as user’s profile. In this paper suppose to context-awareness RABC model that based on profile about which user’s information which provide efficiently access control to user through active classification, inference and judgment about user who access to system and resource.


international conference on future generation communication and networking | 2010

A Design of the Transcoding Middleware for the Mobile Browsing Service

Sungdo Park; Hyokyung Chang; Bokman Jang; Hyosik Ahn; Euiin Choi

Mobile devices have the limited environment such as low process performance, small screen size, low network speed and restricted user interface. This situation prevented the use of diverse and rich desktop-based information and services because the user could use limited services in mobile telecommunication environment. Also, this demands that service providers should develop a separate web contents for mobile telecommunication, but it is a waste of time and effort. Therefore, in this paper, we proposed web contents transcoding middleware that could provide automatic web contents re-authoring for the mobile device.


Energy Procedia | 2012

Filtering Technique on Mobile Cloud Computing

Changbok; Hyokyung Chang; Yongho Kang; Yumi Bae; Hyosik Ahn; Euiin Choi


Energy Procedia | 2012

Efficient Context Modeling Using OWL in Mobile Cloud Computing

Changboka; Hyokyung Chang; Hyosik Ahn; Euiin Choi


Energy Procedia | 2012

Context-aware Mobile Platform for Intellectual Disaster Alerts System

Hyokyung Chang; Yongho Kang; Hyosik Ahn; Changbok Jang; Euiin Choi

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