• Title/Summary/Keyword: existing network

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Content-Aware Convolutional Neural Network for Object Recognition Task

  • Poernomo, Alvin;Kang, Dae-Ki
    • International journal of advanced smart convergence
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    • 제5권3호
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    • pp.1-7
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    • 2016
  • In existing Convolutional Neural Network (CNNs) for object recognition task, there are only few efforts known to reduce the noises from the images. Both convolution and pooling layers perform the features extraction without considering the noises of the input image, treating all pixels equally important. In computer vision field, there has been a study to weight a pixel importance. Seam carving resizes an image by sacrificing the least important pixels, leaving only the most important ones. We propose a new way to combine seam carving approach with current existing CNN model for object recognition task. We attempt to remove the noises or the "unimportant" pixels in the image before doing convolution and pooling, in order to get better feature representatives. Our model shows promising result with CIFAR-10 dataset.

기존제어기와 신경회로망의 혼합제어기법을 이용한 미사일 적응 제어기 설계 (Adaptive Control Design for Missile using Neural Networks Augmentation of Existing Controller)

  • 김광찬;성재민;김병수
    • 제어로봇시스템학회논문지
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    • 제14권12호
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    • pp.1218-1225
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    • 2008
  • This paper presents the design of a neural network based adaptive control for missile is presented. The application model is Exocet MM40, which is derived from missile DATCOM database. Acceleration of missile by tail Fin control cannot be controllable by DMI (Dynamic Model Inversion) directly because it is non-minimum phase system. So, the inner loop consists of DMI and NN (Neural Network) and the outer loop consists of PI controller. In order to satisfy the performances only with PI controller, it is necessary to do some additional process such as gain tuning and scheduling. In this paper, all flight area would be covered by just one PI gains without tuning and scheduling by applying mixture control technique of conventional controller and NN to the outer loop. Also, the simulation model is designed by considering non-minimum phase system and compared the performances to distinguish the validity of control law with conventional PI controller.

UPnP 센서네트워크 기반 상황인식 시스템의 설계 및 구현 (Design and Implementation of Context-Aware Computing System based on UPnP Sensor Network)

  • 김종판;오암석
    • 한국컴퓨터정보학회논문지
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    • 제15권11호
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    • pp.185-193
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    • 2010
  • 본 논문에서는 기존의 PLC 네트워크를 기반으로 별도의 인프라 구축 없이 센서장치를 포함하는 UPnP 장치 모듈을 활용하여 상황인식 서비스를 제공 하고자 한다. UPnP 장치 모듈을 통해 기존의 PLC 장치는 상황에 대한 정보를 바탕으로 제어되며 다양한 유비쿼터스 환경에서 활용 될 수 있다. 또한 UPnP 기반의 TCP/IP 원격 제어 및 장치 관리의 효율성을 제공한다.

Customer Requirements Elicitation based on Social Network Service

  • Lee, Yoon-Kyu;Kim, Neung-Hoe;Kim, Do-Hoon;Lee, Dong-Hyun;In, Hoh Peter
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제5권10호
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    • pp.1733-1750
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    • 2011
  • In the early stages of a software project, it is critical to understand the needs of the customers and elicit their customer requirements. Various requirements elicitation methods have been proposed. However, existing methods still have the limitations such as a limited number of target customers, limited expression of customers' opinions, and difficulty in collecting the customers' opinions continuously. A novel method for eliciting customer requirements is proposed by utilizing a social network service (SNS), which is a shared source of raw information of the customers' needs and opinions. The proposed method is validated to show its effectiveness in overcoming the limitations of existing methods.

유비쿼터스 방사성 CARE 시스템에 관한 보고서 (Ubiquitous Radioactivity Care System)

  • 정창덕;박찬혁;황선일
    • 한국IT서비스학회:학술대회논문집
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    • 한국IT서비스학회 2009년도 춘계학술대회
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    • pp.409-414
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    • 2009
  • I have not seen each of the existing technology, RFID/USN technology combined with the wireless communication channel for the state of nuclear safety in real-time remote monitoring and operation system technology CARE existing radioactive accident information collected by the nuclear power and nuclear power status, 10-20 second intervals to monitor the safety network (SIDS), and nuclear power plants located on the site within 40 ㎞ radius around the 13~15 of the wind speed from the automatic weather network weather information such as rainfall and temperature every 10 minutes to collect as automatic weather network (REMDAS), Evaluation of atmospheric radiation and radiation of the bomb radiation impact assessment system to calculate the goodness (FADAS) and thicken the radiation-related information consists of real-time web technology to collect, the last robot on behalf of the human will to manage the nuclear power plant accident of the technology to prevent the concrete from the following narrative about to have.

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초고압 송전선로의 최적 격상전압 선정에 관한 연구-리비아국 사례 (A STUDY ON OPTIMAL UPGRADING VOLTAGE OF EHV GRID NETWORK-LYBIAN CASE)

  • 김봉희
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 D
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    • pp.1041-1043
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    • 1997
  • When a new transmission line is planned to construct, the system voltage and the conductor size of the transmission line should be decided by both economical and technical point of view. This paper presents a methodology to determine the optimal voltage for upgrading the transmission system voltage of existing the extra high voltage grid network by meeting the requirements of the transmission cost minimization as well as technical constraints of thermal limit and stability limit in the transmission line. As a case study, calculated are optimal voltages versus distance and capacity of a practically applicable transmission line with 4 bundles 2 circuits. By this study 400kV was selected as the next higher voltage for the existing 220kV Libyan grid network.

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역전파 신경망을 이용한 작곡 코드 분석 (Analysis of Composition Chord Based on Back-propagation Neural Network)

  • 조재영;김윤호;이명길
    • 디지털콘텐츠학회 논문지
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    • 제5권3호
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    • pp.245-249
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    • 2004
  • 본 논문은 기존의 코드작곡 프로그램을 신경망 역 전파 방법을 통해 재구성 하였다. 대중성을 인정받은 기존의 대중가요들의 코드진행을 기대치로 부여하고 역전파 학습방법을 통해 그 기대치에 상웅하는 결과 값을 학습시켰다. 가중치 값을 변화시켜가면서 작곡 프로그램을 구현함으로써 기존의 작곡 방법을 더욱 유연하게 대중성의 코드진행 패턴에 가까운 결과를 낼 수 있도록 하였다.

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Mobile Host 제어를 위한 Routing Protocol 성능 비교 (A Performance Comparison Routing Protocols for control Mobile Host)

  • 김탁근;이광재;김동일
    • 한국정보통신학회:학술대회논문집
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    • 한국해양정보통신학회 2001년도 추계종합학술대회
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    • pp.129-132
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    • 2001
  • Mobile host들로 이루어진 망을 Ad hoc 망이라고 한다. 이러한 환경에서는 각 mobile node host들의 무선 전송 전파 범위의 한계 때문에 하나의 mobile host로 패킷을 목적지에 전달하기 위해서는 다른 host들간의 협력이 필수적이다. 또한 고정된 라우터가 없이 mobile host들이 라우터로 동작하므로 기존의 라우팅 프로토콜 알고리즘들은 Ad hoc 망에서는 효율적일 수 없다. 본 논문에서는 기존에 제시된 Ad hoc 망 라우팅 프로토콜들을 시뮬레이션을 통해 그 성능을 비교 분석 하고자 한다.

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A Network-Based Handover Scheme in HIP-Based Mobile Networks

  • Gohar, Moneeb;Koh, Seok-Joo
    • Journal of Information Processing Systems
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    • 제9권4호
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    • pp.651-659
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    • 2013
  • In the Host Identity Protocol (HIP), the existing host-based handover scheme tends to induce large handover delays and packet loss rates. To deal with this problem, we are proposing a network-based handover scheme for HIP in the mobile networks, in which the access routers of the mobile node will establish a handover tunnel and will perform the route optimization for data transmission. We also discuss how to extend the HIP Update message to use the proposed handover scheme. From ns-2 simulations, we can see that the proposed handover scheme can significantly reduce the handover delay and packet losses during handover, as compared to the existing handover schemes.

지역화회귀모형을 이용한 유량관측망의 계측 (Planning of Streamflow Data Collection Network by Regionalized Regression Model)

  • 조국광;권순국
    • 물과 미래
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    • 제23권1호
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    • pp.109-118
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    • 1990
  • 본 연구에서는 한강 및 낙동강유역의 유량관측망에 대하여 개발된 지역화회귀모형을 이용하여 모형이 지니는 평균표본오차의 최소화를 목적함수로 하는 비선형 정수계획법에 의하여 5,6,10,15 및 20년의 계획년수를 갖는 각 운영계획에 따른 기존 관측망의 유효성을 평가하며, 경제적인 측면에서 관측망효율을 증가시킬 수 있도록 하천유량관측망을 조정·계획하였다.

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