• Title, Summary, Keyword: Automatic Information Algorithm

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A Study of Designing the Intelligent Information Retrieval System by Automatic Classification Algorithm (자동분류 알고리즘을 이용한 지능형 정보검색시스템 구축에 관한 연구)

  • Seo, Whee
    • Journal of Korean Library and Information Science Society
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    • v.39 no.4
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    • pp.283-304
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    • 2008
  • This is to develop Intelligent Retrieval System which can automatically present early query's category terms(association terms connected with knowledge structure of relevant terminology) through learning function and it changes searching form automatically and runs it with association terms. For the reason, this theoretical study of Intelligent Automatic Indexing System abstracts expert's index term through learning and clustering algorism about automatic classification, text mining(categorization), and document category representation. It also demonstrates a good capacity in the aspects of expense, time, recall ratio, and precision ratio.

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A Belay Prevention Algorithm of Cardiac Depolarization Wave Detection for Pacemakers or Automatic Implantable Cardioverter/Defibrillator (AICD) (이식용 심장박동기(Pacemaker) 및 심장 세동제거기 (AICD)를 위한 심장 탈분극파 검출지연 방지 알고리즘)

  • Kim, J.K.;Park, C.K.;Han, S.H.;Cho, B.S.;Huh, W.
    • Proceedings of the IEEK Conference
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    • pp.1063-1066
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    • 1999
  • The delay of cardiac depolarization wave detection in the conventional pacemakers or AICD (automatic implantable cardioverter/ defibrillator, or ICD) has been overlooked. However, it is known that the delay may cause hemodynamic problems and may prevent the proper operation of a new automatic feature, automatic capture verification, that is to be appeared in the near-future devices. In order to reduce the effects of the delay, a delay prevention algorithm was developed and tested by applying three human electrograms. The algorithm set the sensing threshold just above the measured noise level to reduce the detection delay. It is found that the low threshold was able to reduce the delay by 20msec(average) In most cases. The implementation results showed reliability and efficacy of the algorithm, and the algorithm could be applicable to the existing hardware and software of the conventional pacemakers and AICD without any significant modifications.

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Multi-cue Integration for Automatic Annotation (자동 주석을 위한 멀티 큐 통합)

  • Shin, Seong-Yoon;Rhee, Yang-Won
    • Proceedings of the Korean Society of Computer Information Conference
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    • pp.151-152
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    • 2010
  • WWW images locate in structural, networking documents, so the importance of a word can be indicated by its location, frequency. There are two patterns for multi-cues ingegration annotation. The multi-cues integration algorithm shows initial promise as an indicator of semantic keyphrases of the web images. The latent semantic automatic keyphrase extraction that causes the improvement with the usage of multi-cues is expected to be preferable.

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Development of an Automatic Cardiac Output Control Algorithm for the Total Artificial Heart (완전 이식형 인공심장의 심박출량 자동 제어 알고리즘 개발에 관한 연구)

  • 최원우;김희찬;민병구
    • Journal of the Korean Institute of Telematics and Electronics B
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    • v.32B no.3
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    • pp.38-47
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    • 1995
  • A new automatic cardiac output control algorithm for the motor-driven electromechanical total artificial heart(TAH) was developed based on the motor current waveform analysis without using any extra transducer. The basic control requirements of artificial heart can be described in terms of three features : preload sensitivity, afterload insensitivity, and balanced ventricular outputs. In the previous studies, many transducers were utilized to obtain informations of hemodynamic states for the automatic cardiac output control, But such automatic control systems with sensors have had reliability problems. We proposed a new sensorless automatic cardiac output control algorithm providing adequate cardiac output to the time-varying physiological demand without causing right atrial collapse, which is one of the critical problem in an active-filling type device. In-vitro tests were performed on a mock circulation system to evaluate the performance of the developed algorithm and the results show that the new algorithm satisfied the basic control requirements on the cardiac output response and the possibility of application of the developed algorithm to in vivo experiments.

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A Study of Designing the Automatic Information Retrieval System based on Natural Language (자연어를 이용한 자동정보검색시스템 구축에 관한 연구)

  • Seo, Hwi
    • Journal of the Korean Society for Library and Information Science
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    • v.35 no.4
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    • pp.141-160
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    • 2001
  • This study is to develop a new system for conducting the information retrieval automatically. The system in this study is programmed by Delphi 4.0(PASCAL) and consists of automatic indexing, clustering technique, establishing and expressing term hierarchic relation, and automatic information retrieval technique. Thus this browser system can automatically control all the processes of information searching such as representation, generation and extension of queries and construction of searching strategy and feedback searching.

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Automatic cardiac output control algorithm for total artificial heart by current waveform analysis (전류파형분석에 의한 완전이식 인공심장의 심박출량 자동제어 알고리즘)

  • 최원우;김희찬;민병구
    • 제어로봇시스템학회:학술대회논문집
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    • pp.383-391
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    • 1993
  • In this paper, a new automatic cardiac output control algorithm without any pressure sensors for the motor-driven electromechanical total artificial heart(TAH) was developed using motor current information. In the previous studies, many transducers were utilized to obtain informations of hemodynamic states for the automatic cardiac output control. But. such automatic control with sensors has some problems. To solve these problems, I proposed a new "sensorless" automatic cardiac output control algorithm providing the adequate cardiac output to the time-varying physiological demand without right atrial collapse. In-vitro tests were performed to evaluate the performance of a new algorithm and it satisfied the basic three requirements on the pump output response through the mock circulation tests.

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A Study on the Extraction of Linear Features from Satellite Images and Automatic GCP Filing (위성영상의 선형특징 추출과 이를 이용한 자동 GCP 화일링에 관한 연구)

  • 김정기;강치우;박래홍;이쾌희
    • Korean Journal of Remote Sensing
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    • v.5 no.2
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    • pp.133-145
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    • 1989
  • This paper describes an implementation of linear feature extraction algorithms for satellite images and a method of automatic GCP(Ground Control Point) filing using the extracted linear feature. We propose a new linear feature extraction algorithm which uses magnitude and direction information of edges. The result of applying the proposed algorithm to satellite images are presented and compared with those of the other algorithms. By using the proposed algorithm, automatic GCP filing was successfully performed.

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Time Delay Estimation Using Automatic Tracking Window (자동추적윈도우를 이용한 시간지연 추정)

  • 윤병우;신윤기;박의열
    • Journal of the Korean Institute of Telematics and Electronics A
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    • v.28A no.5
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    • pp.347-354
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    • 1991
  • In this paper, the Automatic Tracking Window(ATW) algorithm is applied to the Generalized Cross-Correlation(GCC) time delay estimation algorithm as a preprocessing. The Linear Prediction(LP) algorithm, which is a pararmetric spectral estimation algorithm, is applied to the time delay estimation. And the ATW, a preprocessing algorithm is applied to this algorithm too. This paper shows that the ATW algorithm attenuates the sidelobes very much and improves the resolution of the timedelay estimation.

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Development of Automatic Mapping Algorithm using CCTV Information based on Geo-spatial Information (공간정보기반 CCTV 제원정보 자동 매핑 알고리즘 개발)

  • Cho, Myeongheum;Park, Youngjin;Lee, Junwoo;Kim, KyeHyun
    • Journal of the Society of Disaster Information
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    • v.12 no.2
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    • pp.181-188
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    • 2016
  • Database construction of basic elements for displaying CCTV informations(the location, direction, distance, maximum distance, Tele mode angle view, Wide mode angle view, etc.) is conducted by complete survey about CCTV information in model area. Automatic mapping algorithm is suggested to schematize and visualize it on the basic of the investigated CCTV informations. In the result, the CCTV locations in partial areas are duplicated on about 11 percents. Duplicated ones among twelve CCTVs are total five. If the redesign of CCTV location and direction by displaying the CCTV informations based on the suggested algorithm is performed, it can be used as scientific explanations.

Automatic Generation of Digital Elevation Model from 2D Terrain Map Using Graph-theoretic Algorithms (그래픽이론적 알고리즘들을 이용한 2차원 지형도로 부터 DEM 의 자동생성방법)

  • 구자영
    • Korean Journal of Remote Sensing
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    • v.9 no.2
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    • pp.21-34
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    • 1993
  • Digitalized topographic information is necessary for many areas such as landscape analysis, civil engineering planning and design, and geographic information systems. It can also be used in flight simulator and automatic navigation of unmanned plane if it is stored in computer in relevant format. Topographic information is coded with various symbols including contour lines, and is analyzed by trained personnels. The information should be stored in computer for automatic analysis, but it requires a lot of time and manpower to enter the contours using manual input devices such as digitizing tablet. This paper deals with automatic extraction and reconstruction of 3D topographic information from 2D terrain map. Several algorithms were developed in this work including contour segment finding algorithm and contour segment linking algorithm. The algorithm were tested using real 2D terrain map.

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