• Title/Summary/Keyword: Parallel Computer

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An Efficient Parallel Algorithm for Solving Large Sparse Linear Systems of Equations (대형 Sparse 선형시스템 방정식을 풀기위한 효과적인 병렬 알고리즘)

  • Chae, Soo-Hoan;Lee, Jin
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.14 no.4
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    • pp.388-397
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    • 1989
  • This paper describes an intelligent iterative parallel algorithm for solving large sparse linear systems of equations, and proposes a ststic dataflow computer architechture for the implementation of the algorithm. Implemented with the Jacobi interative method, the intelligent algorithm reduces the parallel execution time by reducing the individual inner product operation time.

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A Study of Central Data Acquiring by Using Computer Serial Port and Parallel Port (직.병렬 PORT를 이용한 중앙직접 신호취득방식에 관한 연구)

  • Park, Ho-Cheul;Yoon, Woo-Yung;Chun, Young-Sik
    • Proceedings of the KIEE Conference
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    • 1998.07b
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    • pp.663-665
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    • 1998
  • The measuring data acquisition methods from local sensor are many kinds of techniques. But, if sampling time is not important and we need data of many sensors it is more resonable to be applied economical system. In this paper, the data acquisition technique is used two RS232C communication signals simultaneously. The one come from computer serial port, and another is signal changed from parallel port. In this case the circuits would be simplification and that communication cable is connected by Parallel instead of Branch connection.

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Parallel Processing based Image Identifier Generation (병렬처리 기반 정지영상 인식자 생성)

  • Ko, Mieun;Park, Je-Ho;Park, Young B.;Seo, Wontaek
    • Journal of the Semiconductor & Display Technology
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    • v.16 no.1
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    • pp.6-10
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    • 2017
  • Recent enhancement in the still image acquisition devices has been widely perpetrated into the daily life of the common people. Due to this trend, the voluminous still images, that are produced and shared in the personal or the massive storage, need to controlled with effective and efficient management. The human-devised or system-generated still image identifiers used for the identification of the images are at risk in the situation of unexpected changing or eliminating of the identifiers. In this paper, we propose a parallel processing based method for still image identifier generation by utilizing the still image internal features.

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Implementation of Internet Recruiting Negotiation System using Multi Agents (멀티 에이전트를 이용한 인터넷 채용 협상 시스템의 구현)

  • Lee Keun-Soo;Yoon Sun-Hee
    • Journal of the Korea Society of Computer and Information
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    • v.11 no.2 s.40
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    • pp.341-349
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    • 2006
  • These day, Internet Recruiting needs negotiation of recruiting items. So in this paper, Internet Recruiting Negotiation System(IRNS) proposes multilateral negotiation that substitutes applicants and employers. Previous NSS uses preference value of multi-attribute and sequential negotiation. But proposed IRNS uses parallel negotiation of multi-attribute. parallel negotiation supplies multi-attribute negotiation including single-attribute and results of parallel negotiation. This paper proposes effective negotiation using weight strategy of multi-attribute.

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Judging Translated Web Document & Constructing Bilingual Corpus (웹 번역문서 판별과 병렬 말뭉치 구축)

  • Jee-hyung, Kim;Yill-byung, Lee
    • Proceedings of the Korean Information Science Society Conference
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    • 2004.10a
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    • pp.787-789
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    • 2004
  • People frequently feel the need of a general searching tool that frees from language barrier when they find information through the internet. Therefore, it is necessary to have a multilingual parallel corpus to search with a word that includes a search keyword and has a corresponding word in another language, Multilingual parallel corpus can be built and reused effectively through the several processes which are judgment of the web documents, sentence alignment and word alignment. To build a multilingual parallel corpus, multi-lingual dictionary should be constructed in each language and HTML should be simplified. And by understanding the meaning and the statistics of document structure, judgment on translated web documents will be made and the searched web pages will be aligned in sentence unit.

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Fault Diagnosis of a Voltage-Fed PWM Inverter for a Three-parallel Power Conversion System in a Wind Turbine

  • Ko, Young-Jong;Lee, Kyo-Beum
    • Journal of Power Electronics
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    • v.10 no.6
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    • pp.686-693
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    • 2010
  • In this paper, a fault diagnosis method based on fuzzy logic for the three-parallel power converter in a wind turbine system is presented. The method can not only detect both open and short faults but can also identify faulty switching devices without additional voltage sensors or an analysis modeling of the system. The location of a faulty switch can be indicated by six-patterns of a stator current vector and the fault switching device detection is achieved by analyzing the current vector. A fault tolerant algorithm is also presented to maintain proper performance under faulty conditions. The reliability of the proposed fault detection technique has been proven by simulations and experiments with a 10kW simulator.

(Design of GF(216) Serial Multiplier Using GF(24) and its C Language Simulation (유한체 GF(24)를 이용한 GF(216)의 직렬 곱셈기 설계와 이의 C언어 시뮬레이션)

  • 신원철;이명호
    • Journal of the Korea Society of Computer and Information
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    • v.6 no.3
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    • pp.56-63
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    • 2001
  • In this paper, The GF(216) multiplier using its subfields GF(24) is designed. This design can be used to construct a sequential logic multiplier using a bit-parallel multiplier for its subfield. A finite field serial multiplier using parallel multiplier of subfield takes a less time than serial multiplier and a smaller complexity than parallel multiplier. It has an advatageous feature. A feature between circuit complexity and delay time is compared and simulated using C language.

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A Parallel Algorithm for 3D Geographic Information System (3차원 공간정보 시스템을 위한 병렬 알고리즘)

  • Jo, Jeong-U;Kim, Jin-Seok
    • The KIPS Transactions:PartA
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    • v.9A no.2
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    • pp.217-224
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    • 2002
  • Many systems handle 3D-image were used. High-performance computer systems and techniques of compressing images to handle 3D-image were used. But there will be cost Problems, if GIS system is implemented, using the high-performance system. And if GIS system is implemented, using the techniques of compressing images, there will be some loss of a image. It will take a long processing time to handle 3D-images using a general PC because the size of 3D-image files are very huge. The parallel algorithm presented in the paper can improve speed to handle 3D-image using parallel computer system. The system uses the method of displacing images from nodes to screens, dividing a 3D-image into multiple sub images on multiple nodes. The performance of the presented algorithm showers improving speed by experiments.

Filter-mBART Based Neural Machine Translation Using Parallel Corpus Filtering (병렬 말뭉치 필터링을 적용한 Filter-mBART기반 기계번역 연구)

  • Moon, Hyeonseok;Park, Chanjun;Eo, Sugyeong;Park, JeongBae;Lim, Heuiseok
    • Journal of the Korea Convergence Society
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    • v.12 no.5
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    • pp.1-7
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    • 2021
  • In the latest trend of machine translation research, the model is pretrained through a large mono lingual corpus and then finetuned with a parallel corpus. Although many studies tend to increase the amount of data used in the pretraining stage, it is hard to say that the amount of data must be increased to improve machine translation performance. In this study, through an experiment based on the mBART model using parallel corpus filtering, we propose that high quality data can yield better machine translation performance, even utilizing smaller amount of data. We propose that it is important to consider the quality of data rather than the amount of data, and it can be used as a guideline for building a training corpus.

Number of Equivalence Classes of a Parallel Flats Fraction for the 3" Factorial Design

  • Um, Jung-Koog
    • Journal of the Korean Statistical Society
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    • v.10
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    • pp.122-127
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    • 1981
  • A parallel flats fraction for the $3^n$ factorial is symbolically written as $At=C=(C_1 C_2 \cdots C_f)$ where C is a rxf matrix and A is rxn matrix with rank r. It is shown that the set of all possible parallel flats fraction C for a given A and given size can be partitioned into equivalence classes. The number of those classes are enumerated in general.

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