• Title/Summary/Keyword: 기억접근

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Conflict-Free Memory System for Subarray Access (서브어레이 접근을 위한 충돌회피 기억장치)

  • 박춘자;박종원
    • Proceedings of the Korean Information Science Society Conference
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    • 2002.04a
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    • pp.43-45
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    • 2002
  • 이 논문에서는 pq개의 PE(Processing Element)를 가진 SIMD처리기에서 기억 장치 접근시간을 감소시키기 위한 충돌회피 기억장치를 제안했다. 이 기억장치는 MxN 배열내 자료들의 임의의 위치에서 일정 간격인 블록형태와 8방향 선형태인 pd개의 자료들의 동시 접근을 지원한다. 기억모듈 수는 pq보다 큰 소수이고, 간격은 기억모듈 수의 배수가 아닌 양수이다. 간단하고 빠른 주소계산회로와 이동회로를 위해, 요구된 자료들에서 첫번째 자료의 기준 주소와 pq개의 주소간의 차들로 구분한 후, 주소간의 차들은 첫번째 자료 요소의 기억모듈번호로부터 번호에 따라 오름차순 정렬되고 빠른 기억모듈에 저장된다. 그래서 m개의 주소간의 차이들에 첫번째 자료의 기준주소 더해진 후, 첫 번째 요소의 기억모듈 번호에 의한 오른쪽 회전이 간격을 가진 9가지 서브어레이 모두이게 요구된다. 9가지 자료 이동 형태를 멀티플렉싱과 회전에 의해 1가지로 감소시킨 효율적인 자료 이동 회로를 제안하였다. 제안된 충돌회피기억 장치는 이전기억 장치와 비교하여 자료 접근형태, 간격, 자료 배열의 크기에 제한, 하드웨어 비용, 속도, 복잡도면에서 개선하였다.

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Conflict-Free Memory System for 9-types Subarray Access (9가지 부배열 형태의 접근을 위한 충돌회피 기억장치)

  • Park, Chun-Ja;Park, Jong-Won
    • Proceedings of the Korea Information Processing Society Conference
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    • 2002.04a
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    • pp.695-698
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    • 2002
  • 이 논문에서는 SIMD처리기에서 기억장치 접근시간을 감소시키기 위한 기억장치를 제안했다. 이 기억장치는 MxN 배열내 자료들의 임의의 위치에서 일정 간격인 블록형태와 8방향 선형태인 pq개의 자료들의 동시접근을 지원한다. 기억모듈 수는 pq보다 큰 소수이고, 간격은 기억모듈 수의 배수가 아닌 양수이다. 간단하고 빠른 주소계산회로와 이동회로를 위해, 요구된 자료들에서 첫번째 자료의 기준 주소와 pq개의 주소간의 차들로 구분한 후, 주소간의 차들은 첫번째 자료요소의 기억모듈번호로부터 번호에 따라 오름차순 정렬되고 따른 기억모듈에 저장된다. 9가지 자료 이동형태를 멀티플렉싱과 회전에 의해 1가지로 감소시킨 효율적인 자료 이동 회로를 제안하였다. 제안된 충돌회피 기억장치는 이전 기억장치와 비교하여 자료 접근형태, 간격, 자료 배열의 크기에 제한, 하드웨어 비용, 속도, 복잡도면에서 개선하였다.

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A Study on the Factors Promoting the Use of Memory-based Emotion in Evaluating the Brand (상표평가에서 기억감정의 이용을 촉진하는 요인에 관한 연구)

  • Choi, Nak-Hwan;Na, Ji-Eun
    • Journal of Global Scholars of Marketing Science
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    • v.13
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    • pp.49-70
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    • 2004
  • Recently, consumer researchers have suggested that consumers evaluate brand by subjective memory-based-emotion which was formed by their experience. However, relatively little consumer research has been done to explore conditions under which memory-based-emotion is used in brand evaluation. Therefore, this study explored the conditions to facilitate usage of memory-based- emotion such as accessibility, representativeness, relevance of consumption goal, when consumers evaluate brand. In addition, we investigated the factors that influence responses of memory-based- emotion, such as similarity of encoding and retrieving condition and level of organization. The results of this study suggest that level of organization was positively related to accessibility and representativeness. But similarity of encoding and retrieving condition was not related to them. And accessibility, representativeness influence on use of memory-based-emotion in consumer brand evaluation. But relevance of consumption goal did not influence on use of memory-based-emotion in consumer brand evaluation.

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The effect of syntatic and pragmatic Constraints on Sentential Representaition and Memory Accessibility (통사적 제약과 화용적 제약이 문장의 표상과 기억접근에 미치는 효과)

  • Kim, Sung-Il;Lee, Jae-Ho
    • Korean Journal of Cognitive Science
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    • v.6 no.2
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    • pp.97-116
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    • 1995
  • This study was conducted to investigate how syntaction and pragmatic constraints influence the sentential representation and memory accessibility. In order to seperate the syntactic constraints from the pragmatic constraint from the pragmatic constraints,the syntactic role of constituent in the sentence (subject or object) and the order of mention(first or second) were manipulted.After each sentence was presented by RSVP procedure,the probe recognition time was measured to investigate memory accessibility.In Experiment 1,in which SOA interval was 255ms,it was found that the subject of a sentece were more accessible than the object and participants first in a sentence were more accessible than participants mentioned later.However, in Experiment 2,in which SOA interval was 1540ms,it was found that participants mentioned first in a sentence were more accessible than participants mentioned later while there was no significant difference between the subject and object of a sentece.These results suggest that the syntactic and pragmatic constraints have an independent effect on the initial senential representation at the early stage of constructing representation,but as time passes only the pragmatic constraints influence sentential representation.These results also support a theoretical position which assumes that sentential representation is constructed through the process of convergent statisfaction of multiple constraints.

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A novel page replacement policy associated with ACT-R inspired by human memory retrieval process (인간 기억 인출 과정을 응용하여 설계된 ACT-R 기반 페이지 교체 정책)

  • Roh, Hong-Chan;Park, Sang-Hyun
    • The KIPS Transactions:PartD
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    • v.18D no.1
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    • pp.1-8
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    • 2011
  • The cache structure, which is designed for assuring fast accesses to frequently accessed data, resides on the various levels of computer system hierarchies. Many studies on this cache structure have been conducted and thus many page-replacement algorithms have been proposed. Most of page-replacement algorithms are designed on the basis of heuristic methods by using their own criteria such as how recently pages are accessed and how often they are accessed. This data-retrieval process in computer systems is analogous to human memory retrieval process since the retrieval process of human memory depends on frequency and recency of the retrieval events as well. A recent study regarding human memory cognition revealed that the possibility of the retrieval success and the retrieval latency have a strong correlation with the frequency and recency of the previous retrieval events. In this paper, we propose a novel page-replacement algorithm by utilizing the knowledge from the recent research regarding human memory cognition. Through a set of experiments, we demonstrated that our new method presents better hit-ratio than the LRFU algorithm which has been known as the best performing page-replacement algorithm for DBMS caches.

Design to Chip with Multi-Access Memory System and Parallel Processor for 16 Processing Elements of Image Processing Purpose (영상처리용 16개의 처리기를 위한 다중접근기억장치 및 병렬처리기의 칩 설계)

  • Lim, Jae-Ho;Park, Seong-Mi;Park, Jong-Won
    • Journal of Korea Multimedia Society
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    • v.14 no.11
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    • pp.1401-1408
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    • 2011
  • This dissertation present a chip with Multi-Access Memory System(MAMS) and parallel processor for 16 Processing Elements of image processing purpose. MAMS is a kind of parallel access memory system and can simultaneously access to random pixel datas with eight types. It is possible to set a interval about pixel datas to access, too. The parallel processor built-in MAMS actually has been realized in 2003 but its performance fell short of a real time process for high-definition images. I designed a improved parallel processing system by means of addition and expansion of Memory Modules and Processing Elements of previous one. It is feasible to perform a Morphological Closing at the speed of 3 times of the previous one and 6 times of serial system.

Memory retention of mathematical concepts in multiplication in the inquiry-based pantomime instruction (탐구 중심 판토마임 교수에서 곱셈 개념의 기억의 보존)

  • Bae, Jong-Soo;Park, Do-Yong;Park, Man-Goo
    • School Mathematics
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    • v.9 no.4
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    • pp.507-521
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    • 2007
  • The purpose of this study was to investigate the effects of memory retention of mathematical concepts in multiplication in the inquiry-based pantomime instructions. Three months later after the pre-test, a comparison was made between traditional class (TC) and class with the inquiry-based pantomime (IP) approach in terms of students retention of mathematical understandings. Results of the study indicated that the If instructions promoted effective long-term retention of knowledge. We concluded that instructional strategies that promoted active engagement in learning using life examples and drawings produced effective long-term retention of knowledge.

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A Study on the Approach Method of Product Form by User Mental -Concentrated on Implicit & Explicit memory- (사용자 심리적 연상에 의한 제품형태 접근 방법에 관한연구 -암묵기억과 외현기억을 중심으로-)

  • 안철홍;정도성
    • Archives of design research
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    • v.15 no.1
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    • pp.27-36
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    • 2002
  • To do this, study of human memory and theoretical approach on form in general is carried out to compare the types of memories and the stage of perceive theoretically to discover the relationship between psychological perceive and form. In the second please, scenario of form recognition in cultural aspect is studied through various written records to obtain unbiased critics on what a person can feel from a form through various analysis and experiment. Examples will be given on products designed on the basis of correlation with form through analysis. Through this procedure, elements of reactions on implicit and explicit is derived (Data obtained from experiments on computers and inquiries are used) Analyzed elements are than divided into, general knowledge, memories of reality and subconsciousness memories and basic mental image and user mental image and mental image of form of each products are analyzed. In the third phase, the way of adapting of the elements obtained from the analysis of implicit and explicit reaction to the field of design is predicted. Together with this, future theme this the study will be suggested. Confusions obtained from this study can be listed as below.

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Fractional Differencing, Long-memory Dynamics, and Asset Pricing (분수차분 장기기억과정과 증권의 가격결정)

  • Rhee, Il-King
    • The Korean Journal of Financial Management
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    • v.18 no.1
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    • pp.1-21
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    • 2001
  • 주가가 장기기억과정에 의하여 생성되면 주가과정에 가해진 충격은 쌍곡선감소율로 소멸한다. 따라서 충격의 영향이 대단히 느리게 감소하여 충격이 지속성을 가진다. 반면 주가가 단기 기억과정을 따르면 지수율로 감소하여 소멸한다. 지수율감소는 충격의 영향을 급속히 소멸시키므로 충격의 영향이 조만간 소멸한다. 따라서 충격으로 변화된 주가는 평균으로 회귀한다. 충격의 영향이 영원히 존재하는 과정도 존재한다. 장기기억과정은 쪽거리차분과정 또는 분수차분과정이다. 차분모수가 분수일 것이 요구되는 시계열은 장기기억과정이다. 주가가 장기기억과정에 의하여 생성되고 있는지의 여부를 검정하였다. 장기기억과정을 형성시키는 차분모수는 분수차분모수이다. 일별 주가지수의 수익률을 사용하여 차분모수를 추정하였는 바 그 값이 0에 근접하고 있음이 밝혀졌다. 그러나 Kospi, Nasdaq과 Mib30은 장기기억모수가 0에 접근하고 있으나 0이 아니다. 따라서 이 지수들은 장기기억과정에 의하여 생성된다고 할 수 있다. 반면 Dow Jones, S&P 500와 Dax는 장기기억모수가 0이라는 가설이 기각되지 않고 있어 이 지수들은 단기기억과정을 따르고 있다. 따라서 평균회귀과정에 의하여 생성되고 있음을 알 수 있다.

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