• Title/Summary/Keyword: Measure theory

Search Result 981, Processing Time 0.033 seconds

Development of a Scale for Alcohol Drinking Prevention Behavior in Early Elementary School Based on Ajzen's Theory of Planned Behavior (초등학교 저학년 학생의 음주예방행위 예측변수 측정도구 개발 - Ajzen의 계획적 행위이론 기반 -)

  • Kim, Younkyoung;Lee, Chong Mi;Kang, Seo Young
    • Journal of Korean Academy of Nursing
    • /
    • v.50 no.2
    • /
    • pp.210-227
    • /
    • 2020
  • Purpose: This study aimed to develop a scale to measure variables related to alcohol drinking prevention behavior in early elementary school, based on the theory of planned behavior. Methods: A scale was developed to measure variables related to alcohol drinking prevention behavior. Initial items for direct evaluation were constructed through a literature review, and those for belief-based indirect measure were generated through interviews with 30 second- and third-grade elementary school students. The collected data from 286 third-grade elementary school students were then subjected to item analysis, exploratory and confirmative factor analysis, criterion-related validity testing, and internal consistency assessment. Results: The final scale consisted of 35 items. Intention, attitudes, subjective norms, and perceived behavioral control explained 82.7% of the variance; behavioral beliefs, normative beliefs, and control beliefs explained 65.6% of the variance; and evaluation of outcome, motivation to comply, and power of control beliefs explained 72.8% of the variance. The confirmatory factor analysis indicated that the theoretical models had a satisfactory goodness of fit. Criterion-related validity was confirmed between the direct evaluation variables and the indirect measure variables (attitudes r=.64, p<.001; subjective norms r=.39, p<.001; perceived behavioral control r=.62, p<.001). Cronbach's α was .89 for the direct evaluation variables and .93 for the indirect measure variables. Conclusion: The scale developed in this study is valid and reliable. It could be used to measure and explain variables related to alcohol drinking prevention behavior in early elementary school.

An Image Retrieval Method based on Quantitative Emotion Evaluation on Color Harmony (색채조화의 정량적 감성평가에 기초한 이미지 검색법)

  • Kim, Don-Han;Jeong, Jae-Wook
    • Science of Emotion and Sensibility
    • /
    • v.15 no.1
    • /
    • pp.87-96
    • /
    • 2012
  • This paper proposes a Image retrieval system that searches the closest images to the user's emotional need and displays images with higher ratings of color harmony from Moon-Spencer's Color Harmony Theory first. Once an emotional adjective is placed, the system searches for images with colors that contain more elements derived from Aesthetic Measure results and displays in such order. In order to test reliability of the proposed emotion retrieval method based on Moon-Spencer's Color Harmony Theory, this study compared the order of Aesthetic Measure results with the user satisfaction ratings using 200 sample images. The analysis demonstrated that the participants' average satisfaction on 15 emotion adjectives selected for the study was 5.0 on a 7-point Likert scale. Correlation analyses were performed to test the consistency the orders between Aesthetic Measure values and user satisfaction ratings. Positive correlations above R=.5 were observed in all 14 emotion words except "Clear". These findings prove the potential of the proposed emotion retrieval system based on Moon-Spencer's Color Harmony Theory to effectively reflect user emotion in such visual stimulus search as image database.

  • PDF

Selecting Good Speech Features for Recognition

  • Lee, Young-Jik;Hwang, Kyu-Woong
    • ETRI Journal
    • /
    • v.18 no.1
    • /
    • pp.29-41
    • /
    • 1996
  • This paper describes a method to select a suitable feature for speech recognition using information theoretic measure. Conventional speech recognition systems heuristically choose a portion of frequency components, cepstrum, mel-cepstrum, energy, and their time differences of speech waveforms as their speech features. However, these systems never have good performance if the selected features are not suitable for speech recognition. Since the recognition rate is the only performance measure of speech recognition system, it is hard to judge how suitable the selected feature is. To solve this problem, it is essential to analyze the feature itself, and measure how good the feature itself is. Good speech features should contain all of the class-related information and as small amount of the class-irrelevant variation as possible. In this paper, we suggest a method to measure the class-related information and the amount of the class-irrelevant variation based on the Shannon's information theory. Using this method, we compare the mel-scaled FFT, cepstrum, mel-cepstrum, and wavelet features of the TIMIT speech data. The result shows that, among these features, the mel-scaled FFT is the best feature for speech recognition based on the proposed measure.

  • PDF

A Study on the Analysis of Part Commonality and Redundancy in a Product Line by Entropy Measure (엔트로피 척도(尺度)를 이용(利用)한 제품(製品)라인의 부품 (部品) 공통성(共通性) 및 중복성(重複性) 분석(分析)에 관(關)한 연구(硏究))

  • Ro, Jae-Ho
    • Journal of Industrial Technology
    • /
    • v.3
    • /
    • pp.39-46
    • /
    • 1983
  • This paper presents a quantitative measure of the degree of part commonality and redundancy in a product line based on entropy measure of information theory. The several possible methods of analysis are discussed and the use of the entropy measure is discussed. These commonality and redundancy measure can be applied to analyze the usage pattern of part across a product line and to determine which parts have the broadest usage across the firm's product lines. An analysis of the results by entropy statistics is compared with the practical part usage in a simulation of several types of part usage's distributions.

  • PDF

A New Importance Measure of Association Rules Using Information Theory (정보이론에 기반한 연관 규칙들의 새로운 중요도 측정 방법)

  • Lee, Chang-Hwan;Bae, Joohyun
    • KIPS Transactions on Software and Data Engineering
    • /
    • v.3 no.1
    • /
    • pp.37-42
    • /
    • 2014
  • The abstract should concisely state what was done, how it was done, principal results, and their significance. It should be less than 300 words for all forms of publication. The abstract should be written as one paragraph and should not contain tabular material or numbered references. At the end of abstract, keywords should be given in 3 to 5 words or phrases.

Analysis of Flatness of a Two-Axis Linear Motor with Grey Theory (그레이 이론을 이용한 2 축 리니어 모터의 평면도 분석)

  • 오준모;김준현;최우천
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2004.10a
    • /
    • pp.686-689
    • /
    • 2004
  • As the demands of X-Y linear motors increase, it becomes very important to measure flatness errors and to compensate them. In this study, in order to investigate flatness errors, a laser interferometer is used for measurement. To improve the measurement efficiency, a Union Jack method is adopted instead of a square method. The square method is frequently used because of its accuracy, but it requires many measurement points. In this study, the Union Jack method with Grey Theory is used. By using the Grey Theory, unmeasured data are predicted, and these are compared with results of the square method. The results show that the Union Jack method with Grey Theory is accurate enough to replace the square method.

  • PDF

Attitudinal Determinants of Summer Vacation Activity Participation -Application of the Theory of Planned Behavior- (여름휴가활동 선택의 영향요인에 관한 연구 - 계획행동이론을 적용하여 -)

  • 김승현;엄서호
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.25 no.1
    • /
    • pp.135-142
    • /
    • 1997
  • The objectives of this study was to test applicability of the theory of planned behavior by Ajzen & Driver(1992), to predicting summer vacation activity participation. Vacations to vist Sock-Cho City in summer were asked to complete a questionaire to measure attitudes, subjective norms, perceived behavioral control, and intentions in relation to participating in three vacation activities, at the beach, at the valley, and at the pool. After summer vacation, respondents were called to answer whether or not they had participated in those activities. The results showed that attitudes toward vocation consist of affective and instrumental component Consistent with the theory, attitudes, subjective norms and perceived behavioral control were significant variables in predicting intentions to participate in vacation activites. In addition, intentions and perceived control were influential in predicting vacation activities partication. Althouh the objectives of the study were achived, this application of the theory of planned behavior to Koreans summer vacation participations did not show the same power as the Ajzen & Driver's study(1992) in predicting recreation activties participation. It would be desirable for future research to apply the theory of planned behavior to various recreational settings.

  • PDF

Design of a Mechanism to Increase Lateral Stability of Mobile Robot (이동로봇의 횡방향 안정성 증대를 위한 기구)

  • 정상국;최용제
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2004.10a
    • /
    • pp.1148-1153
    • /
    • 2004
  • This paper presents the mechanism to increase lateral stability of a mobile robot using an energy stability margin theory. Previous measure of stability used in a wheeled mobile robot has been based on a static stability margin. However, the static stability margin is independent of the height of the robot and does not provide sufficient measure for the amount of stability when the terrain is not a horizontal plane. In this work, the energy stability margin theory, which is dependent on robot's height is used to develop a 2 dof mechanism to increase lateral stability. This proposed mechanism shifts the center of gravity of the robot to the point where the energy stability margin is maximized and overall stability of the robot equipped with this mechanism will be increased.

  • PDF

Power System Fault Diagnosis using Possibility Theory (가능성 이론을 이용한 전력계통 고장진단)

  • Lee, Heung-Jae;Lee, Chul-Kyun;Park, Deung-Yong;Kim, Seong-Hee;Ahn, Bok-Shin
    • The Transactions of the Korean Institute of Electrical Engineers A
    • /
    • v.48 no.6
    • /
    • pp.665-670
    • /
    • 1999
  • This paper introduces a fuzzy expert systems for fault diagnosis, where the causal relationships between faults and protective devices are defined as fuzzy relations. The uncertainties existing in the fault diagnosis are figured out using the possibility theory and the possibility measure is associated with the fuzzy relation to evaluate the possibilities of faults. Besides, the knowledge base in the expert system is described and explained. In this way, multiple-fault can be handled easily and simultaneously together with single faults.

  • PDF

A Comparative Study on the Factors Affecting the Loyalty to Cyber Communities: Focusing on Korea and India (가상공간에서의 사회적 교류가 가상공동체 몰입에 미치는 영향에 관한 연구: 한국과 인도를 비교하여)

  • Kim, Bong-Jun;Jeong, Chang-Mi;Cho, Nam-Jae
    • Asia pacific journal of information systems
    • /
    • v.14 no.2
    • /
    • pp.21-36
    • /
    • 2004
  • Since IT industry has changed very rapidly in technology, market environments, the cyber communities raise new social space. In spite of such growth of cyber communities, academic discussion is relatively limited. This Paper suggested several factors that affect the level of participator's loyalty on cyber communities. Participator's loyalty was classified into two categories, the psychological loyalty, which measure the psychological responses, and the behavior loyalty, which measure the absorption of time, the volume and frequency of visit to cyber communities. Consequently, this research has showed social awareness about cyber community culture and suggested the strategy directions for customer-oriented cyber Community Company.