• Title, Summary, Keyword: Preprocessor

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A Joint Statistical Model for Word Spacing and Spelling Error Correction Simultaneously (띄어쓰기 및 철자 오류 동시교정을 위한 통계적 모델)

  • Noh, Hyung-Jong;Cha, Jeong-Won;Lee, GaryGeun-Bae
    • Journal of KIISE:Software and Applications
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    • v.34 no.2
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    • pp.131-139
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    • 2007
  • In this paper, we present a preprocessor which corrects word spacing errors and spelling correction errors simultaneously. The proposed expands noisy-channel model so that it corrects both errors in colloquial style sentences effectively, while preprocessing algorithms have limitations because they correct each error separately. Using Eojeol transition pattern dictionary and statistical data such as n-gram and Jaso transition probabilities, it minimizes the usage of dictionaries and produces the corrected candidates effectively. In experiments we did not get satisfactory results at current stage, we noticed that the proposed methodology has the utility by analyzing the errors. So we expect that the preprocessor will function as an effective error corrector for general colloquial style sentence by doing more improvements.

Preprocessor Implementation of Open IDS Snort for Smart Manufacturing Industry Network (스마트 제조 산업용 네트워크에 적합한 Snort IDS에서의 전처리기 구현)

  • Ha, Jaecheol
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.26 no.5
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    • pp.1313-1322
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    • 2016
  • Recently, many virus and hacking attacks on public organizations and financial institutions by internet are becoming increasingly intelligent and sophisticated. The Advanced Persistent Threat has been considered as an important cyber risk. This attack is basically accomplished by spreading malicious codes through complex networks. To detect and extract PE files in smart manufacturing industry networks, an efficient processing method which is performed before analysis procedure on malicious codes is proposed. We implement a preprocessor of open intrusion detection system Snort for fast extraction of PE files and install on a hardware sensor equipment. As a result of practical experiment, we verify that the network sensor can extract the PE files which are often suspected as a malware.

Design of Real-Time PreProcessor for Image Enhancement of CMOS Image Sensor (CMOS 이미지 센서의 영상 개선을 위한 실시간 전처리 프로세서의 설계)

  • Jung, Yun-Ho;Lee, Joon-Hwan;Kim, Jae-Seok;Lim, Won-Bae;Hur, Bong-Soo;Kang, Moon-Gi
    • Journal of the Institute of Electronics Engineers of Korea SD
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    • v.38 no.8
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    • pp.62-71
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    • 2001
  • This paper presents a design of the real-time digital image enhancement preprocessor for CMOS image sensor. CMOS image sensor offers various advantages while it provides lower-quality images than CCD does. In order to compensate for the physical limitation of CMOS sensor, the spatially adaptive contrast enhancement algorithm was incorporated into the preprocessor with color interpolation, gamma correction, and automatic exposure control. The efficient hardware architecture for the preprocessor is proposed and was simulated in VHDL. It is composed of about 19K logic gates, which is suitable for low-cost one-chip PC camera. The test system was implemented on Altera Flex EPF10KGC503-3 FPGA chip in real-time mode, and performed successfully.

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Web-based Simulation System for Multibody Systems

  • Han, Hyung-Suk
    • International Journal of Precision Engineering and Manufacturing
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    • v.4 no.6
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    • pp.50-60
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    • 2003
  • A web-based dynamic simulation system, called O-DYN, for multibody systems is developed. All the interfaces of the system are accessible via web browsers, such as Netscape or Explorer. The system uses a block-diagram type O-DYN/Modeler developed in JAVA Applet as a preprocessor. The O-DYN postprocessor composed of O-DYN/Plotter and O-DYN/Animator is developed in JAVA Applet. The O-DYN/Solver for predicting the dynamic behavior is run on the web server. Anyone who wants to simulate the dynamics of multibody systems or share results data can access the analysis system over the internet regardless of their OS, platform, or location.

A Study on Windows-Application in Development of Structural Analysis Softwares (구조해석용 소프트웨어 개발에서의 윈도우즈 응용에 관한 연구)

  • 송준엽;서진국;신영식;우광성
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • pp.170-175
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    • 1995
  • In this paper, the problems on Windows application for finite element structural analysis softwares are presented. These Windows application programs provide the better graphical representation of structural geometry through the GUI, and provide the integrated environment for managing various processors such as a preprocessor and a postprocessor. Two examples show the efficiency of this system which can represent various inputs and outputs concurrently on multi-windows by dialog-type.

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A study on the Development of Structural Analysis Program using Visual Basic (Visual Basic을 이용한 구조해석 프로그램 개발에 관한 연구)

  • 이상갑;장승조
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • pp.215-222
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    • 1995
  • The objective of this paper is to develop a finite element structural analysis program using VB(Visual Basic) which has been recently getting popular as development tools of application program for Windows. VB provides several functions to develop an application program easily by supporting event-driven programming method and graphic object as control data type. This system is an integrated processor including preprocessor, solver and postprocessor. Automatic mesh generation is available at preprocess stage, and graphic presentation of deformation and stress is also represented at postprocess one.

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Auto tuning of the hydraulic servo control system using fuzzy set theory (퍼지 집합 이론을 응용한 유압 서보 제어계의 자동 이득 조절)

  • 이교일;나종국
    • 제어로봇시스템학회:학술대회논문집
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    • pp.352-357
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    • 1987
  • The Auto Tuning Controller is designed using Fuzzy set theory. And to verify its validity it is Applied to the Auto Tuner of hydraulic Control System. Fuzzy Tuning Procedures are written by linguistic model and translated into C language formation by preprocessor. Then it is executed with state feedback controller in real time, Fuzzy Logic Controller adjusts state feedback gain by proper tuning logic in each step to satisfy the desired maximum overshoot and settling time.

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The Design of Self-Organizing Map Using Pseudo Gaussian Function Network

  • Kim, Byung-Man;Cho, Hyung-Suck
    • 제어로봇시스템학회:학술대회논문집
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    • pp.42.6-42
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    • 2002
  • Kohonen's self organizing feature map (SOFM) converts arbitrary dimensional patterns into one or two dimensional arrays of nodes. Among the many competitive learning algorithms, SOFM proposed by Kohonen is considered to be powerful in the sense that it not only clusters the input pattern adaptively but also organize the output node topologically. SOFM is usually used for a preprocessor or cluster. It can perform dimensional reduction of input patterns and obtain a topology-preserving map that preserves neighborhood relations of the input patterns. The traditional SOFM algorithm[1] is a competitive learning neural network that maps inputs to discrete points that are called nodes on a lattice...

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Simulation and Characteristic Analysis Using ATP Draw for Power System Equipments (ATP Draw를 이용한 전력계통 설비의 모의 및 특성분석)

  • Ha, Cha-Wung;Lee, Jong-Beom
    • Proceedings of the KIEE Conference
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    • pp.1227-1229
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    • 1999
  • The ATP Draw is a graphical mouse-driven preprocessor to ATP on the Windows Platform. User can build a graphical picture of the electric circuit by selecting components from menus. In this paper, ATP Draw is used to analyze power transformer transient characteristics and lightning overvoltage phenomenon in underground transmission cables. The results obtained by simulations will be used to identify the response of the digital protection algorithms in power system equipment

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A Proposal of Multimedia Intelligent Database for Medical Diagnosis

  • MODEGI, Toshio;IISAKU, Shun-ichi
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • pp.61-66
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    • 1997
  • For constructing an intelligent multimedia database system for medical diagnosis, we are focusing on two technological points. One is a retrieval algorithm of databases, and the other is a coding algorithm of multimedia contents. For the first, previously we proposed a front-end database preprocessor called“keyword-network”, and in this paper we present its extended model providing an intelligent logical AND searching function especially for medical differential diagnosis. For the second, we present examples of multimedia intellectual coding methods for cardiovascular examination records.

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