• Title/Summary/Keyword: Cognitive Structure

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Hangul Character Recognition Using Fuzzy Reasoning:Hangul Character Type Classification by Maximum Run Length Projenction (퍼지추론을 이용한 한글 문자 인식:최대 길이 투영에 의한 한글 문자 유형 분류)

  • 이근수;최형일
    • Korean Journal of Cognitive Science
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    • v.3 no.2
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    • pp.249-270
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    • 1992
  • The purpose of this paper is to classify the types of input characters,printed Hangul characters,using Maximum Run Length Projection(MRLP)that is used to extract features of input character.Because the number of Hangul characters is large and its structure is complex,there exists close similarities among characters.This paper,therefore,tried to increment the type classification rate using fuzzy resoning.The Maximum Run Length Projection is very immune to noise,and also useful to extracting the demanding information efficiently.In a test case with the most frequently use 917 printed Hangul characters,it achieved 98.58%correct classification rate.

English Critique and Verb Dictionary based on Extended Verb Pattern (확장 동사형에 기반한 동사사전과 영어 문장 검사기)

  • 차의영
    • Korean Journal of Cognitive Science
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    • v.3 no.2
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    • pp.311-328
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    • 1992
  • The level and accuracy of English sentence that is generated by a man or machine translator are determined by the content of the verb dictionary and effective generation algorithm.The conventional English critiques is not adequate for foreigners because they do not have the verb dictionary including verb pattern or the important grammatical constraints. In this paper,Ipropose a structure of verb dictionary and an English sentence critique based on extended verb pattern that is useful to check and correct mistakes of English sentences generated by machine translator.

Emotion Evaluation algorithm of Brain Information System using Dynamic Genitive Maps (동적인지 맵을 이용한 뇌 정보 처리 시스템의 감정 평가 알고리즘)

  • 홍인택;김성주;서재용;김용택;전홍태
    • Proceedings of the IEEK Conference
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    • 2003.07d
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    • pp.1243-1246
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    • 2003
  • It is known that structure of Human's brain information system is controlled by cerebral cortex mainly. Cerebral cortex is divided by sensory area, motor area and associated area largely. Sensory area takes part in information from environment and motor area is actuation by decision as associated area determined. It is possible to copy brain information system by input-output pattern. but there is difficulty in modeling of memorizing new information. Such action is performed by Limbic Lobe and Papez circuit which is controlled by intrinsic emotion. So we need of definition of emotion's role in decision. In this paper, we define roles of emotion in intrinsic decision using Dynamic Cognitive Maps(DCMs). The emotion is evaluated by outside information then intrinsic decision performed as how much emotion variated. The dynamic cognitive maps take part in emotion evaluating process.

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Extended LR Methods for Efficient Parsing with Feature-based Grammars

  • Le, Kang-Hyuk
    • Korean Journal of Cognitive Science
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    • v.15 no.1
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    • pp.25-33
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    • 2004
  • This paper discusses two problems with LR parsing with regard to constructing parsing tables with feature-based grammars. First, we show that traditional LR parsing methods suffer from nontermination and nondeterminism problems when they are applied to feature-based grammars. We then present an LR method for feature-based grammars that avoids both nontermination and nondetermisim by making use of partial information of a feature structure. Second, we describe the problem of adapting LR parsing to feature-based grammars with schematic rules (i.e., rules that do not contain enough information to construct parsing tables). To remedy this problem, we propose a rule inference algorithm which instantiates underspecified rules into more specified ones containing enough information.

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A Dynamic Comprehension Syseem with Extended Semotaction Codes (은유적 표현과 의미의 범위확장)

  • 이창인;김상하
    • Korean Journal of Cognitive Science
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    • v.4 no.2
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    • pp.263-278
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    • 1994
  • This paper proposes a way of decoding and translating some metaphorical use in a SL(Source Language). The process of metaphorical usage should be different from that of idiomatic expressions,which can be treated as a flat structure or chunks(cf.Lee(1985)[5],Yoon & Kim(1993)[7].The representation of metaphorical usage is approached with'M'in a separate dictionary with the extened meaning of property.

Development of a korean Text Recognition System (한글 문서 인식 시스템 개발 연구)

  • 고견;이일병
    • Korean Journal of Cognitive Science
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    • v.1 no.1
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    • pp.77-102
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    • 1989
  • This paper reports on the development of a recognition system for Korean character,numbers and punctuation marks by syntactic approach after extracting a character or punctuation mark from a page of text.First,using the projection profile(Masudaet.al.1985,Pavlidin 1981)method, we segment a page into different regions of column or row major and then extracts lines of characters from it.Considering the height,width and connectivity of character block,we proceed to extract syllables from the extracted lines.Basically we distinguish syables into six types of formal pattern(남궁재찬 1982,이주근등 1981)following the research of lee and others,and the punctuation marks and numbers into two kinds of formal patterns,and discriminate the surface structure of the extracted syllables.By Index-Removal algorithm,we subdivide them into 44 kinds of basic korean subpattern and special characters (numbers,punctuation marks)and recognize them by syntactic method(이주근등 1981.)

A Study on the Roles of Shape Properties in Evaluation of Aesthetics values on Shapes (형태속성이 미학 특성 인지 과정에 미치는 영향에 관한 연구)

  • Cha Myung-Yeol
    • Korean Institute of Interior Design Journal
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    • v.14 no.2 s.49
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    • pp.197-205
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    • 2005
  • In estimating designed architectural buildings, many factors in various design domains such as function, structure, form, environment may be considered and then a building design might be selected or modified as final design from many possible design results. This paper proposed a method to obtain complexity values from two dimensional drawings which are floor plans or elevations. The Complexity values could be turned into esthetic values. The method has been developed based on information theory, shape pattern representation and cognitive theory. Results of measuring complexity value can make the computer evaluate and select final results produced from automatic design processes by the computer That is to say, aesthetic values based on order and chaos can be measured using complexity values and then some results having superior values can be selected as final result. Also some cognitive processes as perception of two dimensional drawings are discussed using shape representations. Aesthetic values could be varied in terms of shape properties such as size, individualities and knowledge as well as order and chaos.

A Simulation based Approach for Group Decision-Making Support

  • Kwahk, Kee-Young;Kim, Hee-Woong
    • Management Science and Financial Engineering
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    • v.10 no.1
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    • pp.1-23
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    • 2004
  • The changing structure of organization and the increasing diversity of business have forced organizations to have abilities to coordinate dispersed business activities. They have required cooperation and coordination among the functional units in the organization which should involve group decision-making processes. Although many group decision-making support tools and methods have been introduced to enable the collaborative process of group decision-making, they often lack the features supporting the dynamic complexity issue frequently occurring at group decision-making processes. This results in cognitive unfit between the group decision-making tasks and their supporting tools, bringing about mixed results in their effects on group decision-making. This study proposes system dynamics modeling as a group decision-making support tool to deal with the group decision -making tasks having properties of dynamic complexity in terms of cognitive fit theory.

A study on extraction of aspect and modality information in Korean (한국어의 시상과 양상 정보추출에 관한 연구)

  • 이수현;한광록
    • Korean Journal of Cognitive Science
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    • v.1 no.2
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    • pp.255-257
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    • 1989
  • This paper proposes a method for extracting the imformation of aspect and modality from the predicative part which is consisted of main verbal and auxiiary verbals.Data which are expressed by the compound predicate with many consecutive verbals are collected and analyzed to thirty-six structual forms of the predicative part.Inthe final analysis, an extracting function of conceptual information is derived to find the connoted aspect and modality in each structure.The informations which are obtained by this function decrease the individual ambiguity of an auxiliary verbal and offer a detailed meaning inthe syntactic and semantic analysis of machine translation system or inference machine.

A Design of Cassifier Using Mudular Neural Networks with Unsupervised Learning (비지도 학습 방법을 적용한 모듈화 신경망 기반의 패턴 분류기 설계)

  • 최종원;오경환
    • Korean Journal of Cognitive Science
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    • v.10 no.1
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    • pp.13-24
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    • 1999
  • In this paper, we propose a classifier based on modular networks using an unsupervised learning method. The structure of each module is designed through stochastic analysis of input data and each module classifier data independently. The result of independent classification of each module and a measure of the nearest distance are integrated during the final data classification phase to allow more precise c classification. Computation time is decreased by deleting modules that have been classified to be incorrect during the final classification phase. Using this method. a neural network sharing the best performance was implemented without considering. lots of of variables which can affect the performance of the neural network.

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