• Journal of the Korean Institute of Telematics and Electronics D
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• v.35D no.1
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• pp.41-48
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• 1998

This paper proposes a new addition algorithm to improve the addition speed which is one of the important factors for data path functions. We have designed a fast 64-bit adder utilizing al dynamic chain architecture based on the proposed Sum-Selector Generation (SSG) algorithm. Proposed adder is designed with pass-transistor logicto achieve a high speed operation in low voltage circumstance. Realized 64-bit adder with 0.8.mu.m CMOS double-metal process technology has been fully tested. it operates at 185 MHz with 5.0V and chip area occupies 3.66mm$^{2}$. It is also demonstrated that designed adder operates even at 2.0V power supply condition.

• Journal of information and communication convergence engineering
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• v.9 no.5
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• pp.523-529
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• 2011

In this paper an inter-layer protocol, referred to as a Multi-Network Selector (MNS) is proposed for multiband maritime networks. A MNS is located between the data-link layer and the network layer and performs vertical handover when a ship moves another radio network. In order to provide seamless data transfer to different radio networks, the MNS uses received signal strength (RSS) and ship's location information as decision parameters for vertical handover, which can avoid ping-pong effect and reduces handover latency. In addition, we present related issues in order to implement the MNS for a multiband maritime network.

• Journal of Korean Library and Information Science Society
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• v.32 no.1
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• pp.151-170
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• 2001

The university library is supposed to build its collection in an organized and controlled manner to achieve its one goals for information services, and the book selection is an essential element of librarianship to support the university process of research and education effectively. This study focuses on the faculty influence on the book selection process of the university library. the researcher concludes that too much hegemony in the hands of professors is not appropriate and at least part of it should be handed over to librarians.

• IE interfaces
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• v.11 no.1
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• pp.119-129
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• 1998

The relative importance of Logistics in steelworks industry is rather higher among other business activities. The objective of the paper is to propose the methodology for real-time vehicle scheduling for scrap disposal in the steelworks industry. Currently, the rule necessary to assign vehicles to a specific job is strictly fixed. The paper adopts the multi-pass rule selector (MPRS) that suggests a promising rule used for vehicle dispatching for a period of time. The MPRS is regularly invoked if necessary and then evaluates a set of rule candidates to select the best rule with respect to the system performance criteria. The experiment shows that the proposed approach outperforms the current single-pass strategy.

• The Transactions of the Korean Institute of Electrical Engineers D
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• v.50 no.11
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• pp.522-531
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• 2001

Recently conventional artificial intelligence(AI) approaches have been employed to build action selectors for the autonomous mobile robot(AMR). However, in these approaches, the decision making process to choose an action from multiple competence modules is still an open question. Many researches have been focused on the reactive planning systems such as the biological immune system. In this paper, we attempt to construct an action selector for an AMR based on the artificial immune network and internet. The information from vision sensors is used for antibody. We propose a learning method for artificial immune network using evolutionary algorithm to produce antibody automatically. The internet environment for an AMR action selector shows the usefulness of the proposed learning artificial immune network application.

• Proceedings of the Korea Institute of Convergence Signal Processing
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• 2003.06a
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• pp.26-29
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• 2003

최근 컴퓨팅 환경의 동향은 사람과 컴퓨터간의 좀더 자연스러운 인터페이스와 사용자의 눈에 보이지 않는 하드웨어의 계발이다. 디지털 데스크는 이 두 아이디어가 결합된 컴퓨팅 환경의 대표적인 예이다. 즉, 디지털 데스크에서 아무 장치도 하지 않은 사용자의 fingertip을 컴퓨터의 입력 장치로 사용하는 것이다. 본 논문은 디지털 데스크에서 사용자 fingertip의 이동경로를 추출하고, 추출된 이동경로로 symbolic gesture를 인식하는 방법을 제안한다. 제안된 방법은 Fingertip tracker, Gesture mode selector, 그리고 Symbolic gesture recognizer 세 개의 모듈로 구성된다. Fingertip tracker는 카메라로부터 입력되는 영상에서 사용자 fingertip의 이동경로를 추출하고, Gesture mode selector는 추출한 fingertip의 이동경로가 symbolic gesture인지를 구분한다. Symbolic gesture recognizer는 추출된 fingertip의 이동경로로 symbolic gesture를 인식한다. 이 방법을 문서교정 부호를 인식하여 전자문서를 교정하는 시스템에 적용해 본 결과 좋은 인식 결과를 얻을 수 있었다.

• International Journal of Advanced Culture Technology
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• v.10 no.3
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• pp.332-338
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• 2022

The article presents a concept of designing a Multiplexer circuit which acts as a "Selector" and that becomes capable to select different speed created at different TTL Gate configurations; Standard TTL(Normal Speed), High Speed TTL(High Speed), Schottky TTL(Super High Speed) and further connect the selected Gate speed to the CAR shape created using C-Programming at Computer Graphics and finally CAR shape display at different speed to the color TV. The Multiplexer supporting efficient and more reliable selection criteria using "Logical based selection criteria" and further the output from multiplexer is provided to CAR shape created using c-programming and finally CAR shape is display to color TV system. Basic purposes and assumptions regarding the design and development of this system as well as a description of its operation have been presented.

• International Journal of Computer Science & Network Security
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• v.22 no.5
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• pp.97-102
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• 2022

Network intrusion detection is becoming an increasing necessity for both organizations and individuals alike. Detecting intrusions is one of the major components that aims to prevent information compromise. Automated systems have been put to use due to the voluminous nature of the domain. The major challenge for automated models is the noise and data imbalance components contained in the network transactions. This work proposes an ensemble model, Attribute Subset Selector Bagging (ASUB) that can be used to effectively handle noise and data imbalance. The proposed model performs attribute subset based bag creation, leading to reduction of the influence of the noise factor. The constructed bagging model is heterogeneous in nature, hence leading to effective imbalance handling. Experiments were conducted on the standard intrusion detection datasets KDD CUP 99, Koyoto 2006 and NSL KDD. Results show effective performances, showing the high performance of the model.

• Proceedings of the Korean Vacuum Society Conference
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• 2013.02a
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• pp.357-358
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• 2013

The non-linear characteristics of ON states are important for the application to the high density cross-point memory industry because the sneak current in neighbor cells occurred during reading, erasing, and writing process. Kw of above 20 in ON states, which is the writing current @ Vwrite/the current @ 1/2Vwrite, was required in cross-point ReRAM memory industry. The high current density non-linear IV curve of ZnSe selector was shown and the ALD HfO2 switching device has the linear properties of ON states and the compliance current of 100 uA. To evaluate the performance of the selection device, we connected itto HfO2 switching device in series. The bottom electrode of the selection device was connected to the top electrode of the RRAM. All of the bias was applied with respect to the top electrode of the selection device, whereas the bottom electrode of the RRAM was grounded. In the cross-point application, 1/2Vwrite and -1/2Vwrite were applied to the word-line and bit-line, respectively, which were connected to the selected cell, and a zero bias was applied to the unselected word-lines and bit-lines. The current @ 1/2Vwrite of the unselected cells was blocked by the selection device, thus eliminating the sneak path and obtaining a writing voltage margin. Using this method, the writing voltage margin was analyzed on the basis of the memory size.

• Journal of the Institute of Electronics Engineers of Korea TE
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• v.39 no.2
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• pp.44-50
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• 2002

Conventional acoustic echo cancelers using ES(Exponentially weighted Stepsize) algorithm have simple operational configuration and fast convergence speed batter then NLMS algorithm, but they are very weak in external noise because ES algorithm updates filter taps using an average energy reduction rate of room impulse response in specific acoustical condition. So, a new configuration of acoustic echo canceler with stepsize generator and selector is proposed in this thesis. The proposed stepsize generator and selector improve conventional acoustic echo canceler's weakness in external noise and improve the system robustness. The stepsize generator generates additional stepsize value using moving averager, which is the residual noise energy of error signal multiplied by constant ${\gamma}$. The stepsize selector selects the stepsize value that has better performance in an acoustic echo canceler using a coefficient decision factor ${\Delta}_{differ}$ The simulation results show that the proposed algorithm reduces residual error by 5[dB] to 10[dB], improves misadjustment regardless of external noise's SNR.