• International journal of advanced smart convergence
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• 제10권4호
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• pp.38-44
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• 2021

The purpose of this study is to investigate the structural relationship among brand dependence, brand attitude, brand satisfaction and repurchase intention of online golf goods consumers. To achieve the purpose of this study, a survey was conducted on consumers who had experience in purchasing golf goods online by visiting golf driving ranges in Seoul and Kyeonggi area. A total of 200 people were surveyed and 197 data were used for the final data processing. SPSS 23 and AMOS 23 were used for data processing. We obtained the following results. First, brand dependence had a positive effect on brand attitude, but it did not have a significant effect on repurchase intention.Second, brand attitude had a positive effect on brand satisfaction and repurchase intention; third, brand satisfaction had a positive effect on repurchase intentionFirst, face has been shown to have a significant impact on symbolic consumption propensity. Second, symbolic consumption tendencies have a significant impact on product satisfaction and intention to purchase new products. Third, product satisfaction has been shown to have a negative impact on the intention of purchasing new products.

• Journal of the Korean Data and Information Science Society
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• 제14권2호
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• pp.413-428
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• 2003

If a restriction is imposed only to a (proper) subset of parameters of interest, we call it a local restriction. Statistical inference under a local restriction in multinomial setting is studied. The maximum likelihood estimation under a local restriction and likelihood ratio tests for and against a local restriction are discussed. A real data is analyzed for illustrative purpose.

• 전자공학회논문지S
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• 제34S권8호
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• pp.74-83
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• 1997

In this paper, we propose a new fractal image decoding algorithm with fast convergence speed by using the data dependence and the improved initial image estimation. Conventional method for fractal image decoding requires high-degrdd computational complexity in decoding process, because of iterated contractive transformations applied to whole range blocks. On proposed method, Range of reconstruction imagte is divided into referenced range and data dependence region. And computational complexity is reduced by application of iterated contractive transformations for the referenced range only. Data dependence region can be decoded by one transformations when the referenced range is converged. In addition, more exact initial image is estimated by using bound () function in case of all, and an initial image more nearer to a fixed point is estimated by using range block division estimation. Consequently, the convergence speed of reconstruction iamge is improved with 40% reduction of computational complexity.

• Journal of Information Processing Systems
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• 제10권4호
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• pp.523-542
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• 2014

One-dimensional arrays with subscripts formed by induction variables in real programs appear quite frequently. For most famous data dependence testing methods, checking if integer-valued solutions exist for one-dimensional arrays with references created by induction variable is very difficult. The I test, which is a refined combination of the GCD and Banerjee tests, is an efficient and precise data dependence testing technique to compute if integer-valued solutions exist for one-dimensional arrays with constant bounds and single increments. In this paper, the non-continuous I test, which is an extension of the I test, is proposed to figure out whether there are integer-valued solutions for one-dimensional arrays with constant bounds and non-sing ularincrements or not. Experiments with the benchmarks that have been cited from Livermore and Vector Loop, reveal that there are definitive results for 67 pairs of one-dimensional arrays that were tested.

• 산업융합연구
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• 제21권7호
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• pp.65-73
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• 2023

본 연구는 청소년의 학업무기력과 스마트폰 의존의 관계를 파악하고 자아존중감과 친구관계의 병렬매개효과를 검증하였다. 이를 위해 한국청소년정책연구원에서 수행한 한국아동·청소년 패널조사 2018(KCYPS) 4차 자료를 활용하였으며, 조사에 응답한 청소년 중 무응답 및 이상 값 346명을 제거한 뒤 2,244명을 분석에 활용하였다. 자료분석을 위해 통계패키지 프로그램 SPSS WIN 25.0과 Hayes(2013)의 PROCESS Macro V 3.5를 활용하였으며, 다음과 같은 결과를 도출했다. 첫째, 청소년의 학업무기력은 스마트폰 의존에 정(+)적인 영향이 나타났다. 둘째, 청소년의 학업무기력과 스마트폰 의존의 관계에서 자아존중감은 매개하는 것으로 나타났다. 셋째, 청소년의 학업무기력과 스마트폰 의존의 관계에서 친구관계는 매개하는 것으로 나타났다. 이를 토대로 청소년의 스마트폰 의존을 감소시키기 위한 실천적·정책적 제언과 연구의 한계점을 극복하기 위한 후속 연구를 제안했다.

• 한국멀티미디어학회논문지
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• 제5권3호
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• pp.331-341
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• 2002

기존의 슬라이싱 기법들은 슬라이스를 생성하며 생성된 슬라이스의 정확성을 위해 종속 그래프를 사용한다. 그러나, 기존의 많은 슬라이싱 기법들은 동적 슬라이싱 기법에 바탕을 두고 데이터 통신 링크를 표현하기 때문에 많은 정점들(vertices)과 간선들(edges)을 필요로 한다. 그러므로 그 그래프는 매우 복잡하다. 어떤 프로그램 시스템에 대한 소프트웨 어 슬라이싱을 처리하기 위해 본 논문에서는 동적 시스템 종속그래프를 제안한다. 그리고, 소프트웨어 시스템의 동적 슬라이스를 산출하기 위해 관련 테이블들의 관계도를 이용한 효율적인 슬라이싱 알고리즘을 제안한다. 동적 슬라이스의 생성을 위한 동적시스템종속그래프는 제안된 알고리즘으로부터 얻어진 마킹테이블을 사용해서 얻어진다. 슬라이스의 최종 결과는 이 그래프를 추적함으로써 얻어진다. 결론적으로 제안된 동적시스템종속그래프 기법의 효율성을 기존의 종속그래프 기법과 비교하였다.

• 보건의료산업학회지
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• 제9권3호
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• pp.145-157
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• 2015

Objectives : This study identified factors that influenced social nicotine dependence in university students using descriptive methods. Methods : Data were collected 429 university students from 2 universities in B metropolitan city. The analytical methods were the t-test, ANOVA, Scheffe's test, Pearson's Correlation Coefficient and multiple regression analysis. Results : There were significant differences in social nicotine dependence according to gender (t=3.359, p=.001), smoking status (t=8.915, p=.000), religion (t=3.841, p=.022), economic status (t=3.632, p=.027) and grade (t=8.466, p=.000). Social nicotine dependence was weakly correlated with anxiety (r=.113, p<.05). Meaningful variables that explain social nicotine dependence were anxiety, self-efficacy self-esteem, female, smokers and no religion. Conclusions : It is necessary to develop a comprehensive smoke-free policy that considers social nicotine dependence to improve the cultural and social awareness of the associated health hazards of smoking, and to develop smoking cessation education and smoking prevention programs that improve the self-efficacy and self-esteem of university students.

• 응용통계연구
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• 제29권3호
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• pp.449-462
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• 2016

본 논문은 시계열 분석의 추론에서 매우 중요한 역할을 하는 장기적 분산에 대해서 붓스트랩을 이용한 추정을 다룬다. 본 논문은 기존의 방법을 두가지 측면에서 확장한다. 첫째, 단기억 시계열에서의 장기적 분산 추정을 확장하여 자료의 의존성이 매우 강한 장기간 의존 시계열에서 붓스트랩을 이용한 장기적 분산의 추정에 대해서 논의한다. 또한 장기간 의존 시계열이 평균변화모형과 매우 쉽게 잘 혼동됨이 잘 알려져 있기에 이를 해결하기 위해서 쌍봉형 커널을 이용한 추세 추정 및 붓스트랩의 블럭을 결정하는 방법을 제안한다. 모의 실험결과 제안한 방법이 매우 유의하였으며 북반구 평균 온도 변화 자료 분석으로 실증 자료 예제도 아울러 제시하였다.

• Human Ecology Research
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• 제52권5호
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• pp.519-528
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• 2014

This study explores how the main variables of youth going through a transition period (parents' nurturing behavior, the youth's self-esteem and ego resilience, the peer group relationships) affect the youth's school adjustment. It also analyzes the effects of theses variables on the youth's dependence on cell phones, which are considered a necessity in modern society. This research is verified by using a structure model verification method based on data from the Korean Children Youth Panel Study. According to the research, first, 1st-year students in middle school show better adjustment to their school life and less dependence on cell phones when they have a stronger sense of self-esteem and ego resilience; further, it is revealed that cell phone dependence has an indirect influence on the school life of these children. Second, they tend to show better adjustment to their school life and less dependence on cell phones when their parents' nurturing behaviors are more positive. Third, these children tend to depend more on cell phones when they have a positive peer group relationship, Moreover, cell phone dependence has an indirect influence on their school life. When considering the impact of cell phone to youth in modern society, need to prepare proper training program for correct uses and preventing from addiction.

• 한국지구과학회지
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• 제38권5호
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• pp.333-344
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• 2017

We present the environmental dependence of the luminosity-size relation of galaxies in the local universe (z < 0.01) along with their dependence on galaxy morphology represented by five broad types (E, dEs, S0, Sp, and Irr). The environmental parameters we consider are the local background density and the group/cluster membership together with the clustercenteric distance for the Virgo cluster galaxies. We derive the regression coefficient (${\beta}$), i.e., the slope of the line representing the least-squares fitting to the data and the Pearson correlation coefficient (c.c.) representing the goodness of the least-squares fit along with the confidence interval from bootstrap resampling. We find no significant dependence of the luminosity-size relation on galaxy morphology. However, there is a weak dependence of the luminosity-size relations on the environment of galaxies, in the sense that galaxies in the low density environment have shallower slopes than galaxies in the high density regions except for elliptical galaxies that show an opposite trend.