• Title/Summary/Keyword: Pursuit

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Prediction and Classification Using Projection Pursuit Regression with Automatic Order Selection

  • Park, Heon Jin;Choi, Daewoo;Koo, Ja-Yong
    • Communications for Statistical Applications and Methods
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    • v.7 no.2
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    • pp.585-596
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    • 2000
  • We developed a macro for prediction and classification using profection pursuit regression based on Friedman (1984b) and Hwang, et al. (1994). In the macro, the order of the Hermite functions can be selected automatically. In projection pursuit regression, we compare several smoothing methods such as super smoothing, smoothing with the Hermite functions. Also, classification methods applied to German credit data are compared.

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사서와 행복의 추구

  • Kim, Yeong-Gwi
    • KLA journal
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    • v.22 no.6
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    • pp.62-67
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    • 1981
  • 이 논문은 Library Journal V. 106, N. 11 (June 1981) pp. 1172~1174에 실린 Haynes McMullen의 ‘Librarians and The Pursuit of Happiness'를 번역한 것이다. 저자 Haynes Mcmullen은 North Carolina의 Chapel Hill에 있는 North Carolina University의 도서관학교의 도서관학 교수이다. ’Librarians and The Pursuit of Happines'는 원래 Joel M. Lee와 Beth A. Hamilton이 편집한 (Linnet Bks, Shoe String Pr., Hamden, Conn, 1979) As much to Learn as to Teach: Essays in Honor of Lester Asheim에 있는 ‘American Librarians and The Pursuit of Happiness.' 에 실린 것이다.

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Projection Pursuit을 이용한 이변량 정규분포의 검정

  • 김남현
    • Proceedings of the Korean Statistical Society Conference
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    • 2001.11a
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    • pp.131-136
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    • 2001
  • projection pursuit을 이용하여 이변량 정규분포의 적합도 검정을 위한 통계량을 제안한다. 기본적인 생각은 이변량 정규분포의 가정하에 표준정규분포를 갖는 모든 선형조합을 고려하여 이들의 순서통계량과 이론적인 분위수를 비교하는 것이다. 이와 같이 제안된 통계량은 선형변환에 대해서 불변(invariant)이다. 본 논문에서는 제안된 통계량의 극한분포를 적절한 Gaussian process의 적분으로 표현한다.

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Outlier Identification in Regression Analysis using Projection Pursuit

  • Kim, Hyojung;Park, Chongsun
    • Communications for Statistical Applications and Methods
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    • v.7 no.3
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    • pp.633-641
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    • 2000
  • In this paper, we propose a method to identify multiple outliers in regression analysis with only assumption of smoothness on the regression function. Our method uses single-linkage clustering algorithm and Projection Pursuit Regression (PPR). It was compared with existing methods using several simulated and real examples and turned out to be very useful in regression problem with the regression function which is far from linear.

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Consumption Behavior of Women Consumers in their 20s and 30s for Imported Famous Brand Products (20, 30대 여성의 수입유명브랜드 제품 소비행동)

  • 유미현;이승신
    • Journal of the Korean Home Economics Association
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    • v.42 no.2
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    • pp.33-46
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    • 2004
  • This study investigated the plan to activate consumption behavior through research using a questionnaire investigating the consumption behavior of imported famous brand products and conducted a case study in order to supplement the qualitative sense. This research was conducted on women consumers in their 20s and 30s. 483 questionnaires were used for statistical analysis. The interview research was conducted with 10 consumers in the case study. Following are the study results: 1. Women consumers showed the highest level of conspicuous consumption behavior in the consumption behavior of imported famous brand products. 2.The educational level of consumers and friends showed the greatest statistically significant effect on conspicuous consumption behavior. Both the perception on the openness of imports and the frequency of travel abroad had significant effect on function-pursuit consumption behavior, while age and marital status had the greatest effect on aesthetic-pursuit consumption behavior.

The study of the relationship among materialism, clothing shopping orientation and clothing impulse buying (물질주의, 의류쇼핑성향, 의류충동구매간의 관계)

  • Chung, Misil
    • Korean Journal of Human Ecology
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    • v.24 no.6
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    • pp.829-846
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    • 2015
  • The purpose of this study was to examine the influence of materialism and clothing shopping orientation on clothing impulse buying. The subjects were 309 female college students in Gyeongsang provinces. The obtained data were analyzed by reliability analysis, frequency, factor analysis, correlation analysis and regression analysis. The major results of this study were as follows: First, two factors of materialism were identified: happiness pursuit materialism and possession pursuit materialism. Second, two factors of clothing shopping orientation were identified: conspicuous shopping orientation and hedonic shopping orientation. Third, a significant positive correlation was found among two factors of materialism, two factors of clothing shopping orientation, and clothing impulse buying. Fourth, possession pursuit materialism influences clothing impulse buying through conspicuous shopping orientation. Fifth, happiness pursuit materialism influences clothing impulse buying through hedonic shopping orientation.

Sub-components of Housing Life-styles by the Characteristics of Apartment Housing Residents (공동주택 거주자 특성에 따른 주생활양식의 하위구성요인)

  • 김미희;이유미
    • Korean Journal of Human Ecology
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    • v.1 no.2
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    • pp.75-88
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    • 1998
  • This study designed to explore the patterns of housing life-styles and the characteristics of apartment housing residents and to examine the relationships between housing life-styles and the characteristics of apartment-housing residents. The data for this study was collected by questionnaires administered to 278 homemakers living in apartment housing over 20s pyong(66$m^2$) in the Kwangju area. The major findings of this study can be summarized as follows; 1. Housing life-styles were grouped into 9 sub-categories : the Anbang-centered, the dining-centered, the pursuit of conspicuosness and conformity, orientation to change, the pursuit of orderliness, the pursuit of decoration, orientation to community, pursuit of individuality and the orientation to a natural environment. 2. Housing life-styles were significantly different according to age, educational background, and employment status of homemakers, occupation of the primary income provider, family-life cycle stage, total household income, and housing size. (Korean J Human Ecology 1(2):75~88. 1998)

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A Market Oriented Study on the Wearing Attitude and Purechase Behavior of Jeans (청바지의 착용태도 및 구매행동에 관한 마케팅적 연구)

  • 이선재
    • Journal of the Korean Society of Costume
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    • v.43
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    • pp.109-124
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    • 1999
  • This study was aimed to analyze consumer's wearing attitude and the purchase behavior of jeans and the jean manufacturer's marketing strategies. Subjects were 448 male and female in their teens twenties and thirties living in Seoul. Data were obtained by self-administered questions and analyzed by SAS package. The main findings of this research are as follows: factors of fashion pursuit famous brand pursuit sexual attraction pursuit practicality pursuit. 2. In analysis between jeans wearing attitude type of information source purchase behavior and demographic characteristics showed signicficant difference partially. 3. The most influential design of jeans purchase was a fitting factor. The consumers preferred low price shops in downtown and colledge area and department store because of it's variety of jean goods. So the market segmentation and the brand positioning method according to consumers' wearing attitude and purchase behavior should be concerned properly in maketing strategy design include product and advertising strategy.

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Multipath Matching Pursuit Using Prior Information (사전 정보를 이용한 다중경로 정합 추구)

  • Min, Byeongcheon;Park, Daeyoung
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.41 no.6
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    • pp.628-630
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    • 2016
  • Compressive sensing can recover an original sparse signal from a few measurements. Its performance is affected by the number of non-zero elements in the signal. The knowledge of partial locations of non-zero elements can improve the recovery performance. In this paper, we apply the partial location knowledge to the multipath matching pursuit. The numerical results show it improves the signal recovery performance and the channel estimation performance in the ITU-VB channel.

The Effect of Consumption Value on College Students' Clothing Attitudes (남녀 대학생의 소비가치가 의복태도에 미치는 영향)

  • Park, Eun-Hee;Ku, Yang-Suk
    • Journal of Fashion Business
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    • v.12 no.5
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    • pp.141-154
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    • 2008
  • The purpose of this study was to identify factor structure of consumption value, clothing attitudes and the effects of consumption value on clothing attitudes. Questionnaires were administered to 513 college students living in Deagu and Kyungbook province. Data were analyzed by using frequency, factor analysis, multiple regression, t-test, ANOVA, and Scheffe-test. The findings are as follows. Consumption values were composed of five factors such as social value, differentiated individuality, material value, functional value, and circumstances value. Clothing attitudes were composed of five factors such as pursuit of individuality, fashion interests, utility pursuit, appearance conspicuousness, and social approval. The effects of consumption value on each of clothing attitude variables, pursuit of individuality, fashion interests, appearance conspicuousness, and social approval were explained by the factors such as social value, differentiated individuality, and functional value, utility pursuit by social value, functional value, and circumstances value.