• 제목/요약/키워드: chi Method

검색결과 2,806건 처리시간 0.034초

On the Implementation of Maximum-likelihood Factor Analysis

  • Song, Moon-Sup;Park, Chi-Hoon
    • Journal of the Korean Statistical Society
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    • 제9권1호
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    • pp.13-29
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    • 1980
  • The statistical theory of factor analysis is briefly reviewed with emphasis on the maximum-likelihood method. A modified version of Joreskog(1975) is used for the implementation of the maximum-likelihood method. For the minimization of the conditional minimum function, an adaptive Newton-Raphson method is applied.

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χ2히스토그램을 이용한 승강기 내의 흡연 추출 (Extraction of Smoking in Elevator Using χ2 Histogram)

  • 신성윤;김희애;진찬용;박상준;이양원;이현창
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2013년도 춘계학술대회
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    • pp.119-121
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    • 2013
  • 승강기 내에서는 흡연이 금지되어 있는 것이 사실이다. 승강기 내에서 흡연을 하는 것은 상도덕에 어긋나는 일이며 우리 아이들과 여성들에게 매우 치명적일 수 있다. 본 논문에서는 승강기 내에서 흡연을 하는 사람을 추출하여 포렌식 증거 자료로 제출하기 위해서이다. 방법은 흰색 막대를 입에 물거나, 연기를 내품는 사람을 추출하는 것이다. 방법은 장면 전환 검출에서 ${\chi}^2$ 히스토그램 방법으로 추출한다.

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The Antecedents of Relationship Marketing and Customer Loyalty: A Case of the Designed Fashion Product

  • KHOA, Bui Thanh
    • The Journal of Asian Finance, Economics and Business
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    • 제7권2호
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    • pp.195-204
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    • 2020
  • Customer loyalty is a desired and essential result for companies in a business environment with a lot of competition, of which the fashion industry is no exception. For the fashion industry, the competition between businesses is increasingly fierce with the appearance of tailored fashion brands for each customer, also known as a designed fashion brand. The objective of this study is to examine the relationship between the antecedents of the relationship (reputation of designer, social media marketing) and customer relationship (trust and intimacy), and loyalty of customer for a designed fashion brand. The mixed research method is used to achieve research objectives with qualitative and quantitative research method. Qualitative data was collected through in-depth interview with 12 participants in Ho Chi Minh City, while quantitative data was collected by a survey of 799 respondents in Ho Chi Minh City and Hanoi City. The results show that the antecedents of relationship marketing positively affect on customer relationship and customer loyalty. Moreover, customer relationship has a positive impact on the customer loyalty when shopping for fashion products. From the research results, some managerial implications are also proposed for the designed fashion brands to improve the relationship marketing performance.

The Effect of Trade Integration on Business Cycle Synchronization in East Asia

  • NGUYEN, Vinh Thi Hong;HOANG, Thuy Thi Thanh;NGUYEN, Sang Minh
    • The Journal of Asian Finance, Economics and Business
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    • 제7권8호
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    • pp.225-231
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    • 2020
  • The paper aims to investigate the impact of trade integration on business cycle synchronization for the East Asian countries during 2005- 2017 based on the endogeneity hypothesis of Optimum Currency Area criteria. We test the determinants of business cycles by calculating bilateral trade, financial integration, and business cycle synchronization. Applying the system Generalized Method of Moments for dynamic panel data models, the results show that business cycle synchronization is highly associated with trade and financial integration. These findings confirm the endogeneity hypothesis that more trade integration will mitigate asymmetric shocks, and have a positive impact on the business cycle synchronization. The increased trade intensity and financial linkage lead to more correlated business cycles in East Asia. Apart from trade and financial integration, the trade structure differential, monetary policy similarity also influence the business cycle comovement. The significantly negative impact of trade structure differential on business cycle synchronization suggests that countries with less similar structures are more likely to undergo asymmetric shocks. The results also indicate that monetary policy matters for output comovement. This study recommends that the East Asian countries should focus on bilateral trade as well as financial integration with each other to reap benefits from the integration process.

Factors Affecting the Behavioral Intention and Behavior of Using E-Wallets of Youth in Vietnam

  • PHAN, Trong Nhan;HO, Truc Vi;LE-HOANG, Phuong Viet
    • The Journal of Asian Finance, Economics and Business
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    • 제7권10호
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    • pp.295-302
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    • 2020
  • The study examines an empirical case that explores the key constructs of the Unified Theory of Acceptance and Use of Technology (UTAUT) (Venkatesh, Morris, Davis & Davis, 2003) and the relationship between security and privacy of the Theory of Perceived Risk (TPR) (Bauer, 1960). This study employs survey data of 200 young Internet users aged 18 to 25. The study was conducted through two steps: preliminary research by qualitative research method to form the official research scale then formal research by quantitative research method using CFA and SEM to test the research model. The research results show that performance expectancy and social influence significantly predict behavioral intention to use e-wallets in payment. In contrast, the factors, namely, security and privacy, and effort expectancy, are statistically insignificant on behavioral intention. Nevertheless, the facilitating conditions factor still affects the behavior of using e-wallets. The study proposes a model to generalize the online payment environment through the integration of UTAUT and TPR models that are important for online payment management and researchers in the technology environment. The findings of this study suggest that social influence significantly affects the intention of young people to use e-wallets instead of security and privacy.

寸口脈의 小腸, 大腸 配屬 論議로 바라본 脈診의 經絡診斷 연구 (Study of Discussion for Pulse Diagnosis of Meridian System seen by Research Assignment of the Small and Large Intestine in Wrist Pulse-taking Method)

  • 황치혁;김명현;김병수
    • 동의생리병리학회지
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    • 제29권3호
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    • pp.240-245
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    • 2015
  • Pulse diagnosis, the most popular diagnostic tool in traditional Korean medicine, had had many forms but had been fixed on using wrist pulse and placing internal organs on Cun, Guan and Chi(寸 關 尺). Wang Shuhe(王叔和) suggested placing six viscera(六腑) on Cun, Guan and Chi based on relationship between external and internal meridian vessel, and Zhang Jiebin(張介賓) criticized his suggestion and insisted that pulse diagnosis should be based on the organ system. But the origin of pulse diagnosis which can be found in "(Huangdi's) Internal Classic(黃帝內經)" is a tool mainly for diagnosis of not internal organ system but meridian system. Most of material about pulse diagnosis after Ming dynasty(明代) reinterpreted pulse diagnosis in the aspect of organ system, So there has to be additional discussion about it.

Purchase Intention Towards Japanese Convenience Goods: A Cross-Sectional Study in Vietnam

  • NGUYEN, Nga Thi Quynh;NGUYEN, Duong Tuan;NGUYEN, Quynh Thi Phuc
    • The Journal of Asian Finance, Economics and Business
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    • 제8권10호
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    • pp.165-176
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    • 2021
  • The primary purpose of this study is to identify determinants influencing Vietnamese consumers' purchase intention towards Japanese convenience goods. The research model consisting of six factors affecting the dependent variable is proposed based on the Theory of Consumption Values and Theory of Perceived Value of purchase. This study employs a survey method in a convenient sampling method to collect data of target respondents. Data consisting of 180 samples was collected and analyzed using the SMARPLS3 software. The measurement model is assessed to confirm the validity and reliability of the construct, then hypotheses testing is performed with Bootstrapping analysis. The results demonstrated that five factors affect Vietnamese consumers' purchase intention towards Japanese convenience goods, including the price of the product, quality of the product, functional value, emotional value, and conditional value. Major findings of this study suggest that the functional value that consumer perceives about Japanese convenience goods has the most significant relationship with their purchase intention, followed by the quality of the product and the price of the product. Besides, emotional value and conditional value have a moderate influence on consumers' purchase intention. Whereas the influence of the epistemic value of the product on consumers' purchase intention is insignificant in this presented study.

The Impact of Foreign Ownership on Capital Structure: Empirical Evidence from Listed Firms in Vietnam

  • NGUYEN, Van Diep;DUONG, Quynh Nga
    • The Journal of Asian Finance, Economics and Business
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    • 제9권2호
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    • pp.363-370
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    • 2022
  • The study aims to probe the impact of foreign ownership on Vietnamese listed firms' capital structure. This study employs panel data of 288 non-financial firms listed on the Ho Chi Minh City stock exchange (HOSE) and Ha Noi stock exchange (HNX) in 2015-2019. In this research, we applied a Bayesian linear regression method to provide probabilistic explanations of the model uncertainty and effect of foreign ownership on the capital structure of non-financial listed enterprises in Vietnam. The findings of experimental analysis by Bayesian linear regression method through Markov chain Monte Carlo (MCMC) technique combined with Gibbs sampler suggest that foreign ownership has substantial adverse effects on the firms' capital structure. Our findings also indicate that a firm's size, age, and growth opportunities all have a strong positive and significant effect on its debt ratio. We found that the firms' profitability, tangible assets, and liquidity negatively and strongly affect firms' capital structure. Meanwhile, there is a low negative impact of dividends and inflation on the debt ratio. This research has ramifications for business managers since it improves a company's financial resources by developing a strong capital structure and considering foreign investment as a source of funding.

Assessment of the Quality of Non-Financial Information Disclosure: Empirical Evidence from Listed Companies in Vietnam

  • LE, Binh Thi Hai;NGUYEN, Nhat Quoc;NGUYEN, Cong Van
    • The Journal of Asian Finance, Economics and Business
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    • 제9권5호
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    • pp.111-118
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    • 2022
  • The purpose of this research is to evaluate the quality of non-financial information disclosure by companies listed on the Vietnamese stock exchange. In 2019, 140 annual reports from 140 companies listed on the Vietnam Stock Exchange were included in the research sample. The remaining 134 reports were eligible study after removing those that lacked essential data. Using the statistical software SPSS version 25 and Excel office software, the study has selected the data processing method and the disproportionate disclosure index method to evaluate the quality of non-financial information disclosure of companies. The findings of the study demonstrate that companies listed on the Vietnam stock exchange are particularly interested in giving non-financial information to financial statement consumers as required by law, although the level of disclosure is still inadequate. The findings also illustrate the varying levels of non-financial information disclosure by category of information, as well as substantial disparities between them (general information about the company, environmental and social information, corporate governance information, etc.). The findings of the study show that the majority of Vietnam's publicly traded enterprises are less interested in reporting environmental information.

일개지역 고령자의 요실금의 유병률, 지식 및 배뇨특성 (Prevalence of Urinary Incontinence and Other Urologic Symptoms in a Community Residing Elderly People)

  • 김증임
    • 대한간호학회지
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    • 제32권1호
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    • pp.28-39
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    • 2002
  • The purpose of this study was to measure the prevalence of urinary incontinence (UI), urologic symptoms, chronic health problems they have, and to explore whether the differences in incidence of UI ware by age, sex, voiding pattern, and chronic health problems. Method: 298 subject were selected, age range from 60 to 94 years residing in one city, in republic of Korea. Data was collected presence of UI, urologic symptoms, chronic health problems, knowledge, and the discomfort with incontinent. Collected data was analyzed with frequency, percentage, t-test, and $\chi$2-test. Result: The results of this study are as follows: 1. Mean age was 71.4 years. Prevalent rate of UI was 17.0%, woman showed more than man. 2. UI incidence was significant in age (t=7.84, p=.000), sex ($\chi$2 =9.47, p=.002), and voiding frequency ($\chi$2=18.34, p=.000). Also, UI incidence was significant relationship with chronic health problem of heart disease ($\chi$2 =10.65, p=0.001), hypertension ($\chi$2=4.04, p= 0.046) and respiratory problem ($\chi$2=9.67, p=0.002). 3. The UI was grouped into urgent incontinence (45%), stress incontinence (33%), and combined (22%). UI occurred during the daytime 48% and 17% at night. 4. Only 9.8 % of the UI seek advice and/or treatment for their symptoms, almost 90 % remained untreated due to lack of knowledge or improper information. 5. The discomforts due to their UI was no significant difference in their condition, the urgent use of the rest room, leaking urine, and nocturia. Conclusion: This study suggests that 1 year and 3 year follow-up study is needed to compare health status of UI. Also suggests intervention study for urologic discomfort of incontinent and behavioral education for the elderly are needed.