• Title/Summary/Keyword: 확률 탐색

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A Study on the Export Potential of Bangladesh's Ready-Made Garments (중력모형을 이용한 방글라데시 의류 유망 수출시장 추정)

  • Hossain, Sumon;Oh, Keunyeob
    • Management & Information Systems Review
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    • v.37 no.2
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    • pp.87-108
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    • 2018
  • This article explores the international trade flow of Bangladesh's ready-made garments (RMG). We first suggest the brief history and an international structure of trade among countries by using the trade volume. Then we implemented a gravity model regression with the sample of 38 major partner countries in order to investigate the potential export market for the RMG industry. The fixed effect and random effect model for the panel data during the period of 1990 to 2011 are estimated. Our result shows that Bangladesh's RMG exports are affected positively by the size of economy, inflation, exchange rate, foreign direct investment(FDI) and trade openness. On the other hand, the distance between trading partners are related negatively with the trade volume. We used the estimated coefficients from the panel regression in order to predict RMG export potential of Bangladesh. This might show which country is the promising export market for Bangladesh RMG industry. We found that Bangladesh has the highest potential of RMG export with Japan and USA, which seem to have considerable room for export growth if trade barriers and constraints are removed. We added some policy implications for encouraging the RMG export of Bangladesh by using the results from the analysis.

The Relationship among Trust of Instructors, Leisure Benefit and Resilience for Golf Participants (골프참여자의 지도자 신뢰와 여가 이득 및 회복탄력성의 관계)

  • Kim, Hyung-Jin
    • Journal of the Korean Applied Science and Technology
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    • v.37 no.5
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    • pp.1344-1355
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    • 2020
  • The purpose of this study was to investigate the relationship among trust of instructors, leisure benefit and resilience for golf participants. To achieve the goal of this study, a total of 250 questionnaires were distributed and 250 copies were collected back. Out of those returned questionnaires, insincerely replied or double-replied questionnaires were excluded and finally 234 questionnaires were analyzed for this study. For analysis of the data, frequency analysis, exploratory factor analysis, reliability analysis, confirmatory factor analysis, correlation analysis, and structural equating modeling were conducted using SPSS 18.0 and AMOS 18.0. Main findings were as follows: First trust of instructors had a positive effect on leisure benefit. Second, leisure benefit had a positive effect on resilience. Third, trust of instructors had a positive effect on resilience. Fourth, leisure benefit mediated the relationship between golf participant trust of instructors and resilience. Therefore, it is necessary to make efforts to make golf participation lead to satisfaction, and in addition, it is necessary to seek various and convenient services so that various benefits can be generated through golf, and even psychological management through careful observation of golf participants. Is judged.

Longitudinal Transition of Adolescents' Psychological Character Profiles and its Predictors in Multicultural Families (다문화 가정 청소년의 심리적 특성 잠재프로파일의 종단적 변화 및 영향 요인)

  • Yeon, Eun Mo;Choi, Hyo-Sik
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.3
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    • pp.164-172
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    • 2020
  • This study investigated the longitudinal transition of adolescents' psychological character profiles, which includes self-esteem, acculturative stress, depression, and social withdrawal, and the predictive effects of parental efficacy, families' support, and friends' support in multicultural families. The sample consisted of 1,188 adolescents in elementary school, who were re-examined in three years, when they were in middle school from the part of waves 2 and 6 of the Multicultural Adolescents Panel Study. A latent profile analysis identified three distinct profiles of psychological character among adolescents in elementary school and middle school: stable, social withdrawal, and unstable. As compared to elementary school, adolescents' psychological characteristics stayed stable and played critical roles on the latent classes. Parental efficacy, and supports from family and friends played critical roles on the latent classes. Specifically, as adolescents perceived full of supports from friends, they were more likely to make transitions to the stable group. Implications for intervention in multicultural families are discussed.

A effects of behavior type of dance art instructors in elementary on class satisfaction (무용 예술강사의 교수행동유형이 초등 수업만족도에 미치는 영향)

  • Woo, Jung-Wook;Lee, Eun-Joo
    • Journal of Digital Convergence
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    • v.18 no.2
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    • pp.455-462
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    • 2020
  • The purpose of this study was to investigate the effect of behavior type of dance art instructors in elementary dance education on class satisfaction focused on mediations of flow and perceived competence between commanding and positive reward types. A total of 453 questionnaires were analyzed for this study. For the analysis of the data, SPSS 18.0 version was used and double mediation model operating in serial, proposed by Hayes and a bootstrapping method were used. First, instructor's commanding type and positive reward type were statistically positive effect on class satisfaction. Second, the indirect effect of instructor's commanding type, and positive reward type on class satisfaction through the flow was statistically positive significant. Third, the indirect effect of instructor's commanding type, and reward type on class satisfaction through the perceived competence was statistically not significant. Lastly, the indirect effect of instructor's commanding type, and positive reward type on class satisfaction through the flow and perceived competence was statistically positive significant.

Coarse to Fine Image Registration of Unmanned Aerial Vehicle Images over Agricultural Area using SURF and Mutual Information Methods (SURF 기법과 상호정보기법을 활용한 농경지 지역 무인항공기 영상 간 정밀영상등록)

  • Kim, Taeheon;Lee, Kirim;Lee, Won Hee;Yeom, Junho;Jung, Sejung;Han, Youkyung
    • Korean Journal of Remote Sensing
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    • v.35 no.6_1
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    • pp.945-957
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    • 2019
  • In this study, we propose a coarse to fine image registration method for eliminating geometric error between images over agricultural areas acquired using Unmanned Aerial Vehicle (UAV). First, images of agricultural area were acquired using UAV, and then orthophotos were generated. In order to reduce the probability of extracting outliers that cause errors during image registration, the region of interest is selected by using the metadata of the generated orthophotos to minimize the search area. The coarse image registration was performed based on the extracted tie-points using the Speeded-Up Robust Features (SURF) method to eliminate geometric error between orthophotos. Subsequently, the fine image registration was performed using tie-points extracted through the Mutual Information (MI) method, which can extract the tie-points effectively even if there is no outstanding spatial properties or structure in the image. To verify the effectiveness and superiority of the proposed method, a comparison analysis using 8 orthophotos was performed with the results of image registration using the SURF method and the MI method individually. As a result, we confirmed that the proposed method can effectively eliminated the geometric errors between the orthophotos.

Exploring the Patterns of Engineering College Students' Engineering-Related Creativity by Gender, Academic Year, and Engineering Education Accreditation Program through Latent Class Analysis (잠재집단분석방법을 통한 공과대학 학생들의 성별, 학년별, 공학인증제 프로그램 선택에 따른 공학 창의성 유형 탐색)

  • Lee, Jun-Ki;Shin, Sein;Rachmatullah, Arif;Ha, Minsu
    • Journal of Science Education
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    • v.41 no.1
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    • pp.16-35
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    • 2017
  • This study attempted to investigate the relationship among engineering students' creativity, engineering education accreditation, gender, and academic year. To be specific, fist, we examined the validity and reliability of the instrument for measuring engineering students' creativity by conducting Rasch analysis. Second, we compared level of creativity in terms of gender, academic year, and engineering education accreditation by using three-way ANOVA. Third, correlations among four constructs of creativity were examined. Fourth, latent classes with respect to creativity within the participants were identified using polytomous latent class analysis (poLCA). Data were collected from 2098 engineering students by using instrument for measuring four different constructs (creative cognition, creative tendency, collaboration, environment). By using Rasch analysis, validity and reliability of instrument for measuring creativity were confirmed. And the results of three-way ANOVA showed that there were significant difference in creativity in terms of gender. Female students showed the low level of creativity compared with male students. Also there were significant difference in creativity except creative cognition factor in terms of academic year. But there were no significant difference in creativity between students who participated engineering education accreditation program and the others. All constructs of creativity were significantly correlated with each others. Lastly, poLCA results showed that there were three distinct subgroups within engineering students in terms of the level of creativity. In the subgroup with low creativity, there were more female and first year students. Based on these findings, we discussed education for engineering students' creativity.

This Type of Diet affected of One-Person Households is also on the Selection of Catering Properties and Behavior Intention (1인 가구 형태의 식생활유형이 외식선택속성과 행동의도에 미치는 영향)

  • Jang, Yong-Hyun;Lee, Bo Soon;Lee, Jong-Ho
    • Culinary science and hospitality research
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    • v.22 no.5
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    • pp.25-36
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    • 2016
  • This study examined the factors that affect the relationship between single-person households, food related life style, restaurant selection attributes, and behavioral intention. In order to perform statistical analyses required in the study, SPSS 18.0 Statistical Program was employed for frequency analysis, factor analysis, reliability analysis, correlations, and regression analysis. The results of exploratory factor analysis showed that four factors regarding food related life style were extracted from all measurements with a KMO of 0.716 and a total cumulative variance of 64.437%, With regard to restaurant selection attributes, one factor was extracted with a total cumulative variance of 75.372% and a KMO score of 0.739. One factor for behavioral intention was extracted that accounted for a total cumulative variance of 61.312% and a KMO score of 0.666. All factors were significant to .000 and the correlation between variables was significant. Thus, based on the results, the main research hypotheses regarding the relationships among food related life style restaurant selection attributes, and behavioral intention were adopted.

Multi-hop Routing Protocol based on Neighbor Conditions in Multichannel Ad-hoc Cognitive Radio Networks (인지 무선 애드혹 네트워크에서의 주변 상황을 고려한 협력적 멀티홉 라우팅 방법)

  • Park, Goon-Woo;Choi, Jae-Kark;Yoo, Sang-Jo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.36 no.4A
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    • pp.369-379
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    • 2011
  • During the routing process between nodes on the CR(Cognitive Radio) network conducting for efficient use of limited frequency resources, spectrum handover process due to the appearance of the PU occupies most of the routing latency, and also decreases the reliability of the path. In this paper, a cooperative routing protocol in a multi-channel environment is proposed. The source node broadcasts a message with available channel lists and probability of PU appearance during its route guidance. The intermediate nodes re-transmit the message, received from the source node, and update and maintain the information, status table of the path. The destination node determines the optimal path and sends a reply message to the selected path after it receives the messages from the intermediate nodes. The average probability of the PU appearance and the average time of the PU appearance are updated while transferring data. During data transmission the channel with the lowest probability of appearance of the PU is selected dynamically and if a PU appears on the current channel partial repairment is performed. It is examined that reliability of the selected path considerably is improved and the routing cost is reduced significantly compared to traditional routing methods.

A Exploratory Comparison Study on Anchoring Effect according to Regularity of Snack's Shape (스낵모양의 규칙성에 따른 앵커링 효과의 탐색적 비교연구)

  • Oh, Ji-Won;Lee, Hyun-Kyung;Kim, Gwi-Gon
    • Journal of Digital Convergence
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    • v.14 no.6
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    • pp.237-244
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    • 2016
  • The purpose of this study examines the influence of anchoring and adjustment according to regularity of snack's shape. Especially this study choose 'choco chip' as a snack with regularity to compare with 2012's study. The results of this study are as follows. 1) The anchoring and adjustment also appears in 'choco chip' with regularity. But statistical meaning is different from the result of prior study. 2) The difference of anchoring effect reduced according to additional verbal information in 'choco chip' with regularity. but has no statistical meaning of interaction effect. However the causes of two results are different. 3) The interaction effect of cognitive load(without vs. moderate vs. high) is meaningful statistically. difference of anchoring effect reduced according to additional verbal information in 'choco chip' with regularity in 'choco chip' with regularity. This study provides strategic implication that it overcomes the limitation of the prior resuarch and may reinforce the biased judgement by cognitive overload.

The Influence of Parental Violence and Support Behavior on Dating Violence (부모의 폭력 및 지지행동이 이성교제폭력에 미치는 영향)

  • Chang, Hee-Suk
    • Korean Journal of Social Welfare
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    • v.50
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    • pp.131-155
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    • 2002
  • The present study investigated the influence of parental behavior on their children's dating violence and the pathways by which parental behavior affected their children's violent acts in their respective dating relationships. The related variables in parental behavior were marital violence, child abuse, and parental support. This study identified whether parental violence and support behavior effected dating violence, and if that dating violence was in any way mediated by conflict resolution skills, depression, or delinquency. In addition, the study examined any differences between males and females that were affected by parental behavior. Subjects included 760 students from 14 of the universities in and around Seoul. The Structural Equation Model(SEM) was employed to fulfill the study objectives. The SEM results were the following: The experience of child abuse was associated with severe forms of dating violence, and was only mediated by delinquent acts. Such outcomes were consistent across genders. In this data set, in contrast to the previous studies, the observation of parental violence was not related to children's violent behavior. According to the analysis of SEM, parental support rather than parental violence was more likely to influence their children's dating violence. The lower the level of parental support the greater the negative affect on children's conflict resolution skills, depression, and delinquency, which in turn had an influence on their dating violence. More specifically, an attitude of parental neglect adversely affected women's conflict resolution skills, and increased the frequency of male delinquent behavior. In the light of these findings, practical implications for decreasing dating violence were discussed.

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