• Proceedings of the Korea Information Processing Society Conference
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• 2008.05a
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• pp.979-982
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• 2008

최근 디지털 정보통신 기술의 발전으로 네트워크 기술 및 성능의 적용 범위가 모든 분야로 확대됨에 따라 모든 정보단말, 가전기기, 사물 등이 하나의 네트워크로 연결되는 차세대 통신환경으로 진화되고 있다. 이러한 차세대 통신 환경에서의 핵심기술인 IMS 네트워크 환경하에서 네트워크의 이동이나 디바이스가 변동하더라도 끊김 없는(seamless) 서비스의 제공을 위해서는 서비스 Enabler를 통한 통합 서비스 인프라의 발전이 요구된다. 이 논문은 Enabler와 IMS(IP Multimedia Subsystem)를 통한 통합 서비스 제공환경에서 사용자의 네트워크 환경의 변화나 디바이스의 변화에도 끊김 없는 서비스를 제공하기 위한 세션제어기법과 그 구조를 제안한다.

• International Journal of Computer Science & Network Security
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• v.24 no.1
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• pp.107-118
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• 2024

With the seamless growth of the technology, network usage requirements are expanding day by day. The majority of electronic devices are capable of communication, which strongly requires a secure and reliable network. Network-based intrusion detection systems (NIDS) is a new method for preventing and alerting computers and networks from attacks. Machine Learning is an emerging field that provides a variety of ways to implement effective network intrusion detection systems (NIDS). Bagging and Boosting are two ensemble ML techniques, renowned for better performance in the learning and classification process. In this paper, the study provides a detailed literature review of the past work done and proposed a novel ensemble approach to develop a NIDS system based on the voting method using bagging and boosting ensemble techniques. The test results demonstrate that the ensemble of bagging and boosting through voting exhibits the highest classification accuracy of 99.98% and a minimum false positive rate (FPR) on both datasets. Although the model building time is average which can be a tradeoff by processor speed.

• Korea Information Processing Society Review
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• v.11 no.1
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• pp.29-40
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• 2004

증강현실(Augmented Reality, 이하 AR)이란 실세계와 가상 세계를 이음새 없이(Seamless) 실시간으로 혼합하여 사용자에게 제공함으로써, 사용자에게 보다 향상된 몰입감과 현실감을 제공하는 기술이다.(중략)

• Pallet News
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• s.71
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• pp.3-5
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• 2013

본 원고는 지난 2013년 7월 18일 일본 'Tokoy Metropolitan Industrial Trade Center'에서 열린 Asia Seamless Logistics Forum 발표 원고로 APSF, JPA, JPR의 회장인 Sumihiro Yamazaki가 발표하였습니다.

• Pallet News
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• s.71
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• pp.12-15
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• 2013

본 원고는 지난 2013년 7월 18일 일본 'Tokoy Metropolitan Industrial Trade Center'에서 열린 Asia Seamless Logistics Forum 발표 원고로 말레이시아 Mohamed Nor Mohd Yusoff APSF 부회장이 발표하였습니다.

• Transportation Technology and Policy
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• v.7 no.5
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• pp.105-113
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• 2010

• Pallet News
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• s.70
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• pp.3-7
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• 2013

본 원고는 지난 2013년 7월 18일 일본 'Tokyo Metropolitan Industrial Trade Center'에서 열린 Asia Seamless Logistics Forum 발표 원고로 APSF 명예회장겸 KPCA 회장인 로지스올 그룹의 서병륜 회장이 발표하였습니다.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.7B
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• pp.1018-1033
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• 2010

Recently, as the use of mobile terminal is generalized, the needs of high-speed Internet mobile service is increased. Also users want to receive the multimedia contents what they want through the various terminals in anywhere, anytime via wired and wireless integrated environment. Therefore, various mechanisms that support the mobility are proposed. However, these mechanisms are difficult to support seamless mobility and QoS awareness on the mobile multicast environment. In this paper, we propose a QoS aware handover mechanism that is able to provide the high-quality and real-time services such as mobile IPTV in an integrated environment for these requests of users. Proposed mechanism manages the multicast admission control and multicast handover using the 2-layer multicast information management at the wired and wireless integrated network that extended the service guaranteed methods through the probing based admission control of the wired network to the wireless network based on PMIPv6. We present a performance evaluation results and features analyzed by the simulations using the ㎱-2.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.43 no.6 s.348
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• pp.39-45
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• 2006

n a hybrid ad-hoc network, wired network and a mobile ad-hoc network are connected by the internet gateway. To provide seamless service for internet users in the hybrid ad-hoc network, an efficient internet gateway selection technique and a fast handover technique are needed. In this paper, we propose a seamless handoff technique for providing mobility of mobile hosts in hybrid ad-hoc networks. The proposed internet gateway re-registration algorithm improves general handoff performance. Moreover, the handoff processing time within certain range of area is reduced by using mobility management agent(MMA). In addition the packet loss is reduced when handoff occurs out of the range of MMA by tunneling technique.

• The Transactions of the Korean Institute of Power Electronics
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• v.11 no.1
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• pp.72-78
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• 2006

Distributed generation (DG) systems go to intentional islanding operation to back up private emergency loads when the main grid is out of electric power. Conventional utility interactive inverters normally operated in current control mode in DG system must change their operation mode into voltage control mode to ensure stable voltage source to the emergency loads when intentional islanding operation occurs. During the transfer between current control mode and voltage control mode, serious transient problem may occur on the output terminal voltage of the utility interactive inverter. This paper proposes reasonal inverter topology and its control algorithm for seamless transfer of DG systems in intentional islanding operation. Filter design guide line and data for a LCL filter that is appropriate for the proposed control algorithm are also presented by the authors.