• 제목/요약/키워드: xSelection

검색결과 451건 처리시간 0.026초

기계학습을 통한 디스크립터 자동부여에 관한 연구 (A Study on automatic assignment of descriptors using machine learning)

  • 김판준
    • 정보관리학회지
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    • 제23권1호
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    • pp.279-299
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    • 2006
  • 학술지 논문에 디스크립터를 자동부여하기 위하여 기계학습 기반의 접근법을 적용하였다. 정보학 분야의 핵심 학술지를 선정하여 지난 11년간 수록된 논문들을 대상으로 문헌집단을 구성하였고, 자질 선정과 학습집합의 크기에 따른 성능을 살펴보았다. 그 결과, 자질 선정에서는 카이제곱 통계량(CHI)과 고빈도 선호 자질 선정 기준들(COS, GSS, JAC)을 사용하여 자질을 축소한 다음, 지지벡터기계(SVM)로 학습한 결과가 가장 좋은 성능을 보였다. 학습집합의 크기에서는 지지벡터기계(SVM)와 투표형 퍼셉트론(VPT)의 경우에는 상당한 영향을 받지만 나이브 베이즈(NB)의 경우에는 거의 영향을 받지 않는 것으로 나타났다.

Outlier detection of GPS monitoring data using relational analysis and negative selection algorithm

  • Yi, Ting-Hua;Ye, X.W.;Li, Hong-Nan;Guo, Qing
    • Smart Structures and Systems
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    • 제20권2호
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    • pp.219-229
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    • 2017
  • Outlier detection is an imperative task to identify the occurrence of abnormal events before the structures are suffered from sudden failure during their service lives. This paper proposes a two-phase method for the outlier detection of Global Positioning System (GPS) monitoring data. Prompt judgment of the occurrence of abnormal data is firstly carried out by use of the relational analysis as the relationship among the data obtained from the adjacent locations following a certain rule. Then, a negative selection algorithm (NSA) is adopted for further accurate localization of the abnormal data. To reduce the computation cost in the NSA, an improved scheme by integrating the adjustable radius into the training stage is designed and implemented. Numerical simulations and experimental verifications demonstrate that the proposed method is encouraging compared with the original method in the aspects of efficiency and reliability. This method is only based on the monitoring data without the requirement of the engineer expertise on the structural operational characteristics, which can be easily embedded in a software system for the continuous and reliable monitoring of civil infrastructure.

자기 이미지가 의복 스타일 이미지 평가와 선택에 미치는 영향 (The Effect of Women′s Self-Image on Image Evaluation and Selection in Clothing Styles)

  • 류숙희;김보연
    • 복식문화연구
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    • 제9권5호
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    • pp.734-746
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    • 2001
  • The purpose of this study is to investigate the influence of women's self-image on image evaluation of clothing self-image, and on their selection of clothing styles by situations. The subject of investigation was 500 women above 20 living in Daegu. 6 types of clothing styles including classic, casual, elegant, dramatic, romantic, and mannish and 7 social situations including shopping near house, shopping in a busy street, cultural center, wedding ceremony, dinning out, alumni meeting or fraternity meeting, and couples meeting were used for this study. Data analysis was performed using SPSS package, which included factor analysis, reliability test, cluster analysis, ANOVA, and X²-test. The results are summarized as follows. 1. Adult women could be classified into 4 groups such as the passive mannish, the passive feminine, the active mannish, and the active feminine by their self-images. 2. There were different opinions on each clothing style by self-image. In the image of each clothing style by self-image groups, the passive feminine group considered classic style having effect to make people look tall, mature and elegant style to make people look active and charming. Also, they rated the boldness of dramatic style and the activeness of mannish style high. The active feminine group estimated the boldness of mannish style high. 3. Selection of clothing style differed according to various situations. More formal the situation was, more classic style tended to be selected and for less formal situation, mannish style was selected.

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중국조선족 여자대학생의 의복태도집단별 의류점포선택평가기준 (Evaluation Criteria For Clothing Stores by Clothing Attitudes for Korean-Chinese College Female Students)

  • 김순심
    • 한국지역사회생활과학회지
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    • 제16권4호
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    • pp.59-69
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    • 2005
  • This study examined the shop selection standards and preferred shops depending on the clothing attitudes identified by the psychological characteristics of consumers. To this end, this study selected the Korean Chinese college women in Yanbian. The study was conducted against 300 college students from May to June, 2002. Questionnaire was used for studying the subject of the thesis. Each question was rate4 in 5 point scale, where 1 means 'not at all' and 5 means 'definitely'. The data of this study was statistically analyzed using the SAS PC program. The t-test and $X^{2}$ were conducted to identify the evaluation criteria for clothing store and the preferred shops depending on clothing attitude groups and the factor analysis was carried out to analyze the clothing behavior factors. The results of study are summarized as described below. The clothing attitude of college women was classified into four factors: fashionable, brand-oriented, aesthetic and modest. The subjects were divided into two groups with higher average score and that with lower average score by factor, respectively. As a result of study on the evaluation standards of shop selection and preferred shops depending on the clothing attitude, for the evaluation standards of shop selection, three factors, fashionable, brand-oriented and modest factors, showed the significant difference between two groups. There was a significant difference between two groups in fashionable and brand-oriented factor and the preferred shops.

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과시소비성향과 정장 수입브랜드선호에 따른 의복구매행동에 관한 연구 (Clothing Purchasing Behavior by Conspicuous Consumption and Imported-Brand Preferences)

  • 박미정;임숙자;이승희
    • 한국의류학회지
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    • 제26권1호
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    • pp.3-14
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    • 2002
  • The purpose of this study was to examine conspicuous consuming tendency and imported-brand preferences based on purchasing behavior of clothing. 464 women living in Seoul were collected for this study. For data analysis, descriptive statistics, Pearson's correlation analysis, ANOVA, Duncan's multiple range teats, and $X^2-test$ were used. As the result, five factors in conspicuous consumption are generated from the factor analysis. Consumers with high conspicuous consumption prefer imported-brand clothing. According to the levels of conspicuous consumption, purchasing behaviors of clothing are significantly different in information usages, clothing selection evaluations, patronage store types, purchasing frequencies, and seasonal clothing expenditure. Finally, clothing purchasing behaviors are significantly different by imported-brand clothing preference in information usages, clothing selection standards, and patronage store types.

대학생의 의류소재 인지도 및 의복구매시 선택기준과 소재의 영향 (The Fabric Knowledge and the Selection Criteria & Fabric Impact on Clothing Purchase of University Students)

  • 최종명
    • 한국생활과학회지
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    • 제13권6호
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    • pp.935-941
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    • 2004
  • The purpose of this study is to survey fabric knowledge about apparel products, and to identify not only clothing purchase criteria but the impact of fabrics on the decision-making process in clothing purchase. The 234 questionnaires were distributed to university students(120 males, 114 females), and were analyzed by frequencies, t-test, $x^{2}$ and ANOVA. The results are as follows: 1) The students had apparel fabrics knowledge above the average, and there were partially significant differences in the knowledge by genders. 2) They put a higher priority, in purchasing apparel products, on factors such as design, size, color, fabric, and price of clothing than those including ease of care, sewing, and fashion trend. 3) The consideration of fabrics influenced a post-purchase process. 4) Male students showed less concern, except information search process, with the fabric than females in the decision-making process for clothing purchase.

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노년 여성(老年 女性)의 의복구매행동(衣服購買行動)에 관(關)한 연구(硏究) (A Study on the Clothes Purchasing Behavior of the Eldery Women)

  • 위혜정;손희순
    • 패션비즈니스
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    • 제4권4호
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    • pp.29-40
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    • 2000
  • Eldery generation is a strategic purchasing consumer group in domestic fashion market for the future. The thesis of this study is that identifies needs and desires of eldery women by researching clothes purchasing behaviors and clothes selection standards. For the study, a questionnaire was used as a method of mearsurement and the eldery women in Seoul and Kyonggi were selected as a sample. Data was processed by SPSS $PC^+$ program and analyzed by using frequency, percentage, $x^2$-test and t-test. As a result of this study, clothes purchasing behaviors and clothes selection standards of eldery women can be recognized in related to age and others. A based on the results, this study is expected to assist that marketers can establish effective marketing strategy for the silver fashion business.

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유통구조 변화가 소비자 행동에 미치는 영향에 관한연구-신유통업태 출현에 따른 가전제품 구매행동을 중심으로- (A Study of consumer behavior for electric appliance according to emergencing price-off store)

  • 문숙재;조성은;김연정
    • 가정과삶의질연구
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    • 제16권1호
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    • pp.13-26
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    • 1998
  • The purpose of this study of identify the changing trends of consumer behavior to emergencing Price-off store. Therefore this study analyzed contributing factors to consumer market selection behavior focused on electric appliances. for these research the data were collected through the questionnaire and 407 respondents were housewives in Seoul and Gyeongi-do. Their data were analyzed using Frequency Mean and $x^2$-test. The Major findings of this study were as follows. 1) The percentage of purchasing the national brands of electric appliances were majority. In general the frequency prefered shopping store were the general agents department store discount store and wholesale club were in order. 2) When consumer buy the electric appliance in wholsesale club the buying percentage of iron was the highest. And the percentage of selection of foreign goods brands were very high. 3) The most important factors to determine the using Price-off store was the presence of this market around the housing and easing and easiness of parking.

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5축 CAM 가공 작업 프로세스 개선을 위한 가공 템플릿 활용 (Utilization of machining templates to improve 5-axis CAM machining process)

  • 이동천;김선용
    • Design & Manufacturing
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    • 제11권1호
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    • pp.45-49
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    • 2017
  • Currently, a lot of efforts to make increases the manufacturing efficiency have tried and there is growing the interest to implementing the machining operation through CAM automation and optimization. This kind of movement has shown gradually in 5X milling as well as 3X milling task. By the way, in case of 5X milling, it is difficult to hire the CAM experts who is an experience for 5X machining and also it has too big trouble to use them due to high cost. For this reason, you can see the manufacturer who is concern the CAM S/W to provide the NC automation program that beginners can generate easily the 5X milling in short term and the existing 5X milling process can be improved. These requirements need to make a NC automation process including the practical machining strategies same as the generation by NC expert. In order to support this, it is necessary to directly apply the 3D machining part based on NC template which includes the machining procedures, standard cutter library, auto machine area selection, analyze tool for part shape, machining condition setting considering the material stiffness to be provided by CimatronE and it should be created the 5axis machining data by a minimized operation. With user-friendly, CimatronE's NC machining automation tools improve the 5-axis machining process and speed up the process, maximizing work efficiency and improving product productivity compared to existing machining tasks.

The Implications of X-ray Use in Chuna Manual Therapy from the Viewpoint of Korean Medicine Doctors

  • Kim, Tae Gyu;Gi, Yumi;Yang, Kyu Jin;Lee, Ki-Beom;Jo, Hooin;Choi, Jongho;Lee, Yoon Jae;Lee, Sanghun;Ha, In-Hyuk
    • Journal of Acupuncture Research
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    • 제35권3호
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    • pp.108-114
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    • 2018
  • Background: The purpose of this survey study was to understand how utilization of X-rays as an adjunct to Chuna manual therapy (CT) supports treatment, as assessed by Korean medicine doctors (KMDs). Methods: A survey was emailed to all 18,289 members of the Association of Korean Oriental Medicine (AKOM)to determine the implications of X-ray use in CT. Surveys were collected from September 22, 2017 to October 15, 2017. Results: Of the 18,289 KMDs 562 completed the survey. The implications of a radiological diagnosis (X-ray) with CT was assessed using 5 items in a questionnaire: time to diagnosis, accuracy of treatment, patient comprehension and satisfaction, CT effect, and safety of CT. Survey participants identified improvement in patient comprehension and satisfaction as the most important factor for X-ray use with CT, followed by increased safety of CT. From the determinant factors for selection of CT intensity and specific techniques, severity of clinical symptoms was shown to be the most influential factor. Degenerative changes of the spine and degree of spinal malposition were also reported to be highly influential. Conclusion: The KMDs' that participated in this study indicated that utilization of X-rays in conjunction with CT administration improved patient comprehension and satisfaction, and CT safety. Installation of radiological equipment in Korean medicine clinics where CT is provided may increase safety and patients' satisfaction.