• 제목/요약/키워드: Set Association

검색결과 4,010건 처리시간 0.033초

전기제품의원리-텔레비전수상기(TelevisionSet)

  • 한국전기제품안전협회
    • 제품안전
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    • 6호통권162호
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    • pp.58-61
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    • 2007
  • 지난 호에는 컬러수상기의 구조, 전자빔의 원리 및 비월주사의 구조에 대해서 알아보았다. 이어서 이번호에는 TV수신용 안테나(antenna), 튜너(tuner) 등의 원리 및 구조에 대해서 알아보도록 하겠다.

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옴니채널 성향, 조절초점과 고려상표군 형성에 관한 연구 (The Influence of Omni-channel Propensity and Regulatory Focus on Consideration Set Formation)

  • 한상설
    • 산경연구논집
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    • 제10권5호
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    • pp.49-58
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    • 2019
  • Purpose - Consumer behaviors or decision-making process has been changing recently as the consumer environment, including mobile everyday life, has changed. In view of this changing consumer smart environment, this study aims to investigate structural relation about the influence omni-channel propensity and regulatory focus on consideration set formation. Research design, data, and methodology - In order to proceed with this study, we review previous studies and setting hypotheses. The hypothesis was verified through a survey that was conducted for university students with experience in purchasing in less than three months. With reference to previous studies, operational definition was made for the questionnaire design. From 2018 Nov. to 2019 Feb. Survey was conducted on the panel consumers who purchase item within that period. 315 collected survey data were used to verify hypotheses except the data that had incorrect values. This data were used for SPSS/AMOS for confirm hypothesis which developed by researcher. Results - The results of this study are as follows. First, Consumers were considering a more heterogeneous alternatives if they were more omni-channel propensity in the process of forming consideration set. Second, Consumers were more conscious of the price if they were more omni-channel propensity Third, Consumers were considering a more newness alternatives if they were more omni-channel propensity in the process of forming consideration set. Meanwhile, The results of the study on regulatory focus and consideration set relationships are as follows. Consumers were considering a more heterogeneous alternatives if they were more promotion focus tendency in the process of forming consideration set. Second, Prevention focus tendency were more conscious of the price in the process of considering alternatives. Third, Consumers were considering a more newness alternatives if they were more promotion focus tendency. Conclusions - Depending on the changing consumer environment, the omni-channel propensity was shown to influence the formation of the consideration set. Also, Regulatory focus of consumers significantly influence to formation of consideration set. this study also contributes to the development of the theory as well as the practical approach with understanding consumer decision process on smart(mobile) environment.

집합 결합과 신경망을 이용한 복합질환의 예측 (A Prediction Model for Complex Diseases using Set Association & Artificial Neural Network)

  • 최현주;김승현;위규범
    • 정보처리학회논문지B
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    • 제15B권4호
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    • pp.323-330
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    • 2008
  • 복합질환은 다수의 유전자들이 상호작용하여 유발되는 질병으로서, 여러 유전자들이 관여한다는 복잡성 때문에 전통적인 분석 방법을 적용하는데 한계가 있다. 최근에는 기계학습 기법을 이용한 새로운 분석 방법들이 제안되고 있다. 신경망은 이처럼 복잡한 데이터에서 일정한 패턴을 찾아 이를 분류하는데 적합한 모델이다. 그러나 다량의 데이터가 입력으로 들어오는 경우에 학습에 오랜 시간이 걸리고 패턴을 찾기가 어려워지는 단점이 있다. 본 연구에서는 다량의 SNP 데이터로부터 질병에 연관된 소수의 중요 SNP을 찾기 위한 통계학적인 방법인 집합결합(set association)과 신경망을 결합한 모델을 제시한다. 이 모델을 천식 관련 SNP 데이터에 적용하여 천식 발병 여부를 예측한 결과, 신경망만 사용했을 때보다 실행 시간도 빠르고 예측 정확도도 높았다. 이 모델은 다른 복합질환의 예측에도 효과적으로 사용할 수 있을 것으로 기대한다.

Incremental Model-based Test Suite Reduction with Formal Concept Analysis

  • Ng, Pin;Fung, Richard Y.K.;Kong, Ray W.M.
    • Journal of Information Processing Systems
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    • 제6권2호
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    • pp.197-208
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    • 2010
  • Test scenarios can be derived based on some system models for requirements validation purposes. Model-based test suite reduction aims to provide a smaller set of test scenarios which can preserve the original test coverage with respect to some testing criteria. We are proposing to apply Formal Concept Analysis (FCA) in analyzing the association between a set of test scenarios and a set of transitions specified in a state machine model. By utilizing the properties of concept lattice, we are able to determine incrementally a minimal set of test scenarios with adequate test coverage.

Internet Shopping Optimization Problem With Delivery Constraints

  • Chung, Ji-Bok
    • 유통과학연구
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    • 제15권2호
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    • pp.15-20
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    • 2017
  • Purpose - This paper aims to suggest a delivery constrained internet shopping optimization problem (DISOP) which must be solved for online recommendation system to provide a customized service considering cost and delivery conditions at the same time. Research design, data, and methodology - To solve a (DISOP), we propose a multi-objective formulation and a solution approach. By using a commercial optimization software (LINDO), a (DISOP) can be solved iteratively and a pareto optimal set can be calculated for real-sized problem. Results - We propose a new research problem which is different with internet shopping optimization problem since our problem considers not only the purchasing cost but also delivery conditions at the same time. Furthermore, we suggest a multi-objective mathematical formulation for our research problem and provide a solution approach to get a pareto optimal set by using numerical example. Conclusions - This paper proposes a multi-objective optimization problem to solve internet shopping optimization problem with delivery constraint and a solution approach to get a pareto optimal set. The results of research will contribute to develop a customized comparison and recommendation system to help more easy and smart online shopping service.

CnHpsUL*을 위한 집합 이론적 크립키형 의미론 (Set-Theoretical Kripke-Style Semantics for an Extension of HpsUL, CnHpsUL*)

  • 양은석
    • 논리연구
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    • 제21권1호
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    • pp.39-57
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    • 2018
  • 이 글에서 우리는 약화 없는 비교환적인 퍼지 논리의 비대수적 크립키형 의미론 즉 집합 이론적 크립키형 의미론을 다룬다. 이를 위하여 먼저 우리는 가-유니놈에 기반한 퍼지 논리 HpsUL의 한 확장 체계인 $CnHpsUL^*$을 소개한다. 다음으로 CnHpsUL*을 위한 집합 이론적 크립키형 의미론을 소개한다.

약한 결합 원리를 갖는 준구조 퍼지 논리를 위한 집합 이론적 크립키형 의미론 (Set-theoretic Kripke-style Semantics for Weakly Associative Substructural Fuzzy Logics)

  • 양은석
    • 논리연구
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    • 제22권1호
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    • pp.25-42
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    • 2019
  • 이 글에서 우리는 (곱 연언 &의) 약한 형식의 결합 원리를 갖는 준구조 퍼지 논리를 위한 집합 이론적 크립키형 의미론을 연구한다. 이를 위하여 먼저 약한 결합 원리를 갖는 세 준구조 퍼지 논리체계들을 상기한 후 이 체계들에 상응하는 크립키형 의미론을 소개한다. 다음으로 집합 이론적 방식을 이용하여 이 체계들이 완전하다는 것을 보인다.