• KIPS Transactions on Computer and Communication Systems
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• v.11 no.11
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• pp.381-394
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• 2022

Recently, due to the personalization and customization of data, Internet-based services have increased requirements for real-time processing, such as real-time AI inference and data analysis, which must be handled immediately according to the user's situation or requirement. Real-time tasks have a set deadline from the start of each task to the return of the results, and the guarantee of the deadline is directly linked to the quality of the services. However, traditional container systems are limited in operating real-time tasks because they do not provide the ability to allocate and manage deadlines for tasks executed in containers. In addition, tasks such as AI inference and data analysis basically utilize graphical processing units (GPU), which typically have performance impacts on each other because performance isolation is not provided between containers. And the resource usage of the node alone cannot determine the deadline guarantee rate of each container or whether to deploy a new real-time container. In this paper, we propose a monitoring technique for tracking and managing the execution status of deadlines and real-time GPU tasks in containers to support real-time processing of GPU tasks running on containers, and a node list management technique for container placement on appropriate nodes to ensure deadlines. Furthermore, we demonstrate from experiments that the proposed technique has a very small impact on the system.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.33 no.6
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• pp.975-987
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• 2023

With the advancement of Artificial Intelligence (AI) technologies, the provision of data-driven AI services that enable automation and intelligence is increasing across industries, raising concerns about the AI security risks that may arise from the use of AI. Accordingly, Foreign countries recognize the need and importance of AI regulation and are focusing on developing related policies and regulations. This movement is also happening in Korea, and AI regulations have not been specified, so it is necessary to compare and analyze existing policy proposals or guidelines to derive common factors and identify complementary points, and discuss the direction of domestic AI regulation. In this paper, we investigate AI security risks that may arise in the AI life cycle and derive six points to be considered in establishing domestic AI regulations through analysis of each risk. Based on this, we analyze AI policy proposals and recommendations in Korea and validate additional issues. In addition, based on a review of the main content of AI laws in the US and EU and the analysis of this paper, we propose measures to improve domestic guidelines and policies in the field of AI.

• KIPS Transactions on Software and Data Engineering
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• v.4 no.6
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• pp.269-276
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• 2015

The today's rapid spread of smartphones makes it easier to use SNS. However, it reveals only their daily life or interest. Therefore, it is hard to really get to know the detailed part of multi-user's common interests. This paper proposes a content recommendation system which recommends people wanted by identifying common interests through SNS. Recommendation system includes proposal formula considering people wanted and deviation in group. After simulation, the proposed system provide high-quality adapted contents to many users by recommendation item according to the common interest. Number of cases about formula are four. It recommend contents that they have many number of 'like' and few number of deviation in users. The proposed system proves by simulations of four cases and read user's 'likes' data. It provide high-quality adapted contents to many users by recommendation item according to the common interest.

• Journal of the Korean Society for Library and Information Science
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• v.44 no.1
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• pp.243-265
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• 2010

This paper strives to shed a light on open access journals as academic resources for libraries and repositories. It also seeks the measure for the evaluation of information resources. It first attempts to draw outcomes and suggestions on the basis of the issues and implications identified through analysis into aspects of management, service, and infrastructure of repositories. For this task, research methods such as interviews and on/offline literature review were employed. Specific projects were analyzed via literature and website review, although not detailed in nature. Next, the paper discusses issue such as the current quality measures of OAJ. For this, a thorough comparison on the background, outlines and characteristics of the projects and an analysis of the specifics of each project were conducted as well.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.10
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• pp.2351-2357
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• 2010

Recently, USN technology has been spreaded to all areas of application systems. In addition to urban application systems such as u-City, u-Home and u-Education, u-Farming(ubiquitous farming) technology supports agricultural innovations in the farm. In the u-farming environment for livestock or plant production, key environmental factors i.e. temperature, humidity and luminosity are to be set optimally to increase productivity and safety by applying USN technology. This approach could change agricultural environment. In this paper, we proposed an implantable micro sensor node to be implanted into laying hen to monitor deep body temperature. This sensor node uses SoC(System-on-Chip) designed for USN. In addition to that, we discussed about further considerations on the practical use of proposed sensor node.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.7
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• pp.1412-1418
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• 2005

Recently, more and more portable terminals probably have multiple interfaces to be connected to different access technologies. Each technology has its specific characteristics in terms of coverage area, bandwidth, reliability, etc. For example, the mobile node is equipped with three heterogeneous interfaces; IEEE 802.1lb MLAM link, CDMA Cellular link, and 802.16 WiMAX link These mobile nodes may be reachable through different links at the same time or use each interface alternately depending on the network environment. As like this, the portable terminal equipped multiple interfaces can have many benefits; it should be connect to Internet through other interface in case of occurring to failure for currently activate interface, and it should share a mount of traffic efficiently per interface etc. This environment is called end node Multihoming. However, current most Internet protocols are designed originally with single interface in mind. So these potocols do not provide methods for supporting simultaneous diffentiated use of multiple access technologies. In this paper, firstly we have to refer technical consideration items to use multiple interfaces based on IPv6 simultaneously. And we should propose extended registration mechanism for multiple addresses being acquired from interfaces to support reliable accessibility and vertical handover.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.06a
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• pp.837-840
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• 2007

Recently, Not only PC environment but also movile environment using XML for translating data. But the mobile delevopment is more limited but need highler security than PC environment Because there is some important service such as mobile banking. In this paper, We development the system to encrypt and decrypt the XML data in order to protect data, And the system is observing the recommendation of the XML Encryption Syntax and Processing by W3C. When encrypting the data, We use the entryption algorithm DES, Triple-DES, AES, SEED and RSA. and consideration of the mobile environment Last, We test the system at WIPI environment.

• Journal of the Korean Association of Geographic Information Studies
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• v.11 no.3
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• pp.127-135
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• 2008

Intermodal or transfer facilities is always necessary wherever different modes meet at one place and exchanges of passengers among the modes take place. Design of intermodal or transfer facilities requires a careful consideration of numerous legal and technical factors. This study intends to suggest the fundamental principles needed for design the intermodal facilities to enhance the level-of-service for transfer passengers as well as the efficiency of operation. Previous studies and relevant legal documentation are reviewed and examined. Steps in the design procedures are suggested, and data necessary for designing the facility is suggested. The above principles are applied to the real design of Busan KTX station in order to identify the problems.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.9 no.6
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• pp.151-158
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• 2010

In line with the requirement of appropriate protocol support for such mission-critical wireless sensor network (WSN) applications as patient monitoring, we investigate the framework for designing medium access control (MAC) schemes. The data traffic in medical systems comes with inherent traffic heterogeneity as well as strict requirement of reliability according to the varied extents of devise-wise criticality in separate cases. This implies that the quality-of-Service (QoS) issues are very distinctly delicate requiring specialized consideration. Besides, there are features in such systems that can be exploited during the design of a MAC scheme. In a monitoring or routine surveillance application, there are degrees of regularity or predictability in traffic as coordinated from a node of central control. The coordinator thus takes on the role of marshaling the resources in a neighborhood of nodes deployed mostly for upstream traffic; in a collision-free scheme, it schedules the time slots for each superframe based on the QoS specifications. In this preliminary study, we identify the key artifacts of such a MAC scheme. We also present basic performance issues like the impact of superframe length on delay incurred, energy efficiency achieved in the network operation as obtained in a typical simulation setup based on this framework.

• The Journal of the Korea Contents Association
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• v.13 no.11
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• pp.332-346
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• 2013

Since the enactment of Social Enterprise Promotion Act in 2007, the December 2012 was now 801 organizations certified as social enterprise. Social enterprise in urban areas are much more activated, in order to social enterprises in rural areas be activated, what you need to improve and what measures will need to be applied by the practitioners and researchers is a challenge to be reflective. In this study, We searched for ways of social enterprise activation in rural areas, conducted by case study of social enterprise transition probabilities diagnosis and demand survey of local people based in Boseong. For research purposes, this study selects 41 corporate and non-profit organizations in order to examine social enterprise transition probabilities, the potential social enterprise certification, social enterprise-related demand, awareness of sustainability, and local issues.