• The Journal of the Acoustical Society of Korea
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• v.23 no.5
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• pp.410-419
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• 2004

In this paper. we propose a method of confidence measure fusion under Bayesian framework for speech recognition. Centralized and distributed schemes are considered for confidence measure fusion. Centralized fusion is feature level fusion which combines the values of individual confidence scores and makes a final decision. In contrast. distributed fusion is decision level fusion which combines the individual decision makings made by each individual confidence measuring method. Optimal Bayesian fusion rules for centralized and distributed cases are presented. In isolated word Out-of-Vocabulary (OOV) rejection experiments. centralized Bayesian fusion shows over 13% relative equal error rate (EER) reduction compared with the individual confidence measure methods. In contrast. the distributed Bayesian fusion shows no significant performance increase.

• Journal of the Korean Home Economics Association
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• v.45 no.6
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• pp.1-9
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• 2007

Even though self-confidence is a personal factor of a people, it works as behavioristic factor in consumer behavior. In this study, the influence of consumer self-confidence on clothing purchase behavior was investigated. A total of 284 data sets were analyzed after collecting questionnaires from college students in Seoul using convenient sampling method. For data analysis, chi-square test, analysis of variance, reliability test and factor analysis were performed by SPSSWIN program. The results were as followed. First, the clothing purchase places were affected by the consumers' level of self-confidence. The more confident consumers preferred internet shopping and Dongdaemun market to large-scale shops. The discount stores were selected by the less confident consumers. Second, information search was one of the main reasons to visit internet shopping mall by the more confident consumers. Third, the more confident consumers showed the higher level of clothing involvement than the less confident consumers. Finally, unplanned purchases, such as pure impulse buying and reminder buying were more likely to occur by the more confident consumers with less purchase conflicts.

• The Korean Journal of Emergency Medical Services
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• v.18 no.1
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• pp.55-66
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• 2014

Purpose : The purpose of the study is to investigate the knowledge, attitude, confidence, and experiences of community health practitioner(CHP) regarding cardiopulmonary resuscitation(CPR). Methods : The subjects were 333 CHP in G Province, C Province, and I Metropolitan City. A structured self-reported questionnaire was filled out by 209 participants from July 29, 2013 to September 30, 2013. Results : Confidence level toward CPR was intermediate, and knowledge and attitude level was very low. Seventeen participants performed CPR to cardiac arrest victim. Eleven patients among 25 patients had spontaneous recovery of circulation (ROSC). So the rate was very high. Conclusion : It is necessary to perform the efficient CPR in CHP. In order to improve the positive attitude and confidence in CHP, the renewal system must maintain every two years.

• The Journal of Information Systems
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• v.20 no.3
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• pp.63-79
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• 2011

Deducting the risk level of infrastructure and buildings based on past human disaster risk cases and implementing prevention measures are important activities for disaster prevention. The object of this study is to measure the confidence to proceed quantitative analysis of various disaster risk cases through text mining methodology. Indeed, by examining confidence calculation process and method, this study suggests also a basic quantitative framework. The framework to measure the confidence is composed into four stages. First step describes correlation by categorizing basic elements based on human disaster ontology. Secondly, terms and cases of Term-Document Matrix will be created and the frequency of certain cases and terms will be quantified, the correlation value will be added to the missing values. In the third stage, association rules will be created according to the basic elements of human disaster risk cases. Lastly, the confidence value of disaster risk cases will be measured through association rules. This kind of confidence value will become a key element when deciding a risk level of a new disaster risk, followed up by preventive measures. Through collection of human disaster risk cases related to road infrastructure, this study will demonstrate a case where the four steps of the quantitative framework and process had been actually used for verification.

• International Journal of Reliability and Applications
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• v.7 no.2
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• pp.177-186
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• 2006

Typical confidence intervals for a mean or mean residual life (MRL) are centered about the mean or mean residual life. We discuss novel confidence intervals that produce statements like "we are 95% confident that the MRL function, e(t), is greater than a prespecified $\mu_o$ for all t in the interval [0, $\hat{\theta})$)" where $\hat{\theta}$ is determined from the sample data, confidence level, and $\mu_o$. Also, we can have statements like 'we are 95% confident that the MRL of population 1, namely $e_1$(t), is greater than the MRL of population 2, $e_2$(t), for all t in the interval [0, $\hat{\theta}$)" where $\hat{\theta}$ is determined from the sample data and confidence level. We illustrate these one and two sample confidence intervals on internal bonds (tensile strengths) for an important modem engineered wood product, called medium density fiberboard (MDF), used internationally.

• Communications for Statistical Applications and Methods
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• v.16 no.2
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• pp.363-372
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• 2009

The difference of two independent binomial proportions is frequently of interest in biomedical research. The interval estimation may be an important tool for the inferential problem. Many confidence intervals have been proposed. They can be classified into the class of exact confidence intervals or the class of approximate confidence intervals. Ore may prefer exact confidence interval s in that they guarantee the minimum coverage probability greater than the nominal confidence level. However, someone, for example Agresti and Coull (1998) claims that "approximation is better than exact." It seems that when sample size is large, the approximate interval is more preferable to the exact interval. However, the choice is not clear when sample, size is small. In this note, an exact confidence and an approximate confidence interval, which were recommended by Santner et al. (2007) and Lee (2006b), respectively, are compared in terms of the coverage probability and the expected length.

• Journal of the Korean Wood Science and Technology
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• v.41 no.5
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• pp.432-439
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• 2013

The aim of this study was to investigate the processes for evaluating the allowable bending stress. The confidence levels and the size-adjustment in standards were reviewed with experimental data. The results show that, (1) KS F 2152 was more strict than others overseas standards due to the higher confidence level. The 5% NTL of bending strengths by a method in KS F 2152 were lower than the overseas standards and more specimens were required for evaluating the structural properties according to KS F 2152. (2) Due to the absence of size-adjustment method in domestic standards, the specified size and the exponential parameters on the size-adjustment equation were reviewed by size factors. The specified size (width: 286 mm, length: 6096 mm), and the exponential parameters (w: 0.29, l: 0.14) will be suitable for developing the allowable bending stress in domestic standard. (3) The size adjusted allowable bending stresses of No. 2 grade Korean pine were lower than the allowable stresses tabulated in KBC even though less strict method (75% confidence level) to calculate 5% value was used. The allowable stresses tabulated in KBC are needed to be reviewed by continuous experimental data.

• Child Health Nursing Research
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• v.7 no.4
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• pp.405-420
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• 2001

The main purpose of this study was to identify the effect of phone counseling carried out to promote the role of the primiperous mothers. The data were collected from march 20 to may 30, 1998. The subjects for the study were the mothers of 60 first bon neonates admitted to and discharged from Sam-sung Medical Center's neonatal ward. Thirty subjects were assigned to the experimental group and thirty to the control group. A measure of maternal identity as well as level of self confidence in taking care of an infant after giving birth was taken. Informational supportive nursing was then provided to the mothers through phone counseling for a total of four times at 2~3 days, 7~8days, 12∼13days and 18∼1days after discharged. The level of self confidence in taking care of an infant was then remeasured. The control group was not provided with supportive nursing through phone counseling instead the level of confidence in taking care of an infant was measured at 3 weeks. Taking previous study documentary evidence into consideration the researcher developed a supportive nursing telephone counseling program that provided both informational and emotional support suitable to primiperous mothers. A semantic differential scale developed according to Osgood and translated and adapted by Koh Hyo-Jung was used as the maternal self identity measurement tool. The tool used to measure self confidence in taking care of infant was the developed by Bak Mi Suk which includes 13 items from Pharis's self confidence scale The data were analyzed using χ²-test, t-test and paired t-test. The result of the study are as follows 1. First hypothesis The level of self confidence in taking care of an infant for the group of primiparas who received phone counseling in the postpartum period would be higher than that of the primiparas who did not receive phone counselling : As the experimental group's level of self confidence in taking care infants was significantly higher than that of the control group this hypothesis is accepted 2. Second hypothesis The level of maternal identity will be higher for the group of primiparas who received phone counseling than that of primiparas who did not received phone counseling As the experimental group's level of maternal identity was significantly higher than that of the control group this hypothesis is accepted In looking at the results of the study as a whole, it can be concluded that emotional and informational nursing support provided through phone counselling is an effective strategy in promoting the role of new mothers.

• Korean Journal of Culture and Social Issue
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• v.12 no.1
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• pp.81-102
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• 2006

This study focused on driver's carefulness and researched the relationship between driving confidence and driving behaviour in elderly and young drivers. In order to evaluate the driving confidence level, 'Driving Confidence Scale' was developed. 175 of young drivers(younger than 25) and 150 of elderly drivers(older than 65) conducted Driving Confidence Scale. They answered their driving patterns; driving history, annual mileage, the frequency of committing traffic violation, and experience of accident within 5 years. Elderly driver's data was collected by face to face interview. The factors of driving confidence were analyzed and the driving confidence level of young and elderly drivers was compared. Driving Confidence was consisted of 4 factors; environment of traffic condition, safe driving, driving ability, attention. Elderly driver's confidence was lower than young driver's. Elderly drivers in high driving confidence group, showed longer driving history and they were tend to commit violations more frequently than elerly drivers in low driving confidence group. Young drivers, whose driving confidence level was high answered more driving history, annual mileage, the frequency of committing traffic violation and experience of accident within 5 years.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.16 no.4
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• pp.472-480
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• 2009

Purpose: The purpose of this study was to explore differences in health belief by compliance level with breast self-examination (BSE) and the predictors of BSE compliance among women. Method: Using a convenience sampling method, 163 women were selected for the sample. Data were measured for each participant during the period between December 2008 and February 2009, and analyzed by chi-square test, t-test, Kruskal-Wallis test with post hoc, and logistic regression analysis. Samples were categorized into three groups by the compliance level of BSE for the last 6 months: Never-performers (i.e, women who had never performed BSE), irregularly-performers (i.e, women who performed BSE at least once), and regularly-performers (i.e, women who performed monthly BSE). Result: Significant differences were reported among never-performers, irregularly-performers and regularly-performers correlated to age, level of education, mammography, ultrasonography, clinical examination, benefit, and confidence. There was no significant difference between irregularly-performers and regularly performers. The significant factor influencing compliance with BSE was 'confidence', which explained 33.7% of the variance in compliance with BSE. Conclusion: Women who had more confidence in their ability to perform BSE were more likely to practice BSE. It is necessary to develop the strategy to enforce woman's confidence in complying with BSE.