• KIPS Transactions on Software and Data Engineering
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• v.4 no.4
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• pp.201-208
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• 2015

This paper proposes a method for detecting the direction indicator shown in the road surface efficiently from the black box system installed on the vehicle. In the proposed method, the direction indicators are detected by inverse perspective mapping(IPM) and bag of visual features(BOF)-based NN classifier. In order to apply the proposed method to real-time environments, the candidated regions of direction indicator in an image only performs IPM, and BOF-based NN is used for the classification of feature information from direction indicators. The results of applying the proposed method to the road surface direction indicators detection and recognition, the detection accuracy was presented at least about 89%, and the method presents a relatively high detection rate in the various road conditions. Thus it can be seen that the proposed method is applied to safe driving support systems available.

• Journal of Korean Society of Transportation
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• v.25 no.3
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• pp.99-109
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• 2007

Variable message signs (VMS), which are used for providing real-time information on traffic conditions and accident occurrences, are one of the important components of intelligent transportation systems VMS messages need to meet human factor requirements: messages should be readable and understandable while driving. Lab-controlled experiments on VMS messages were conducted to obtain useful data for analyzing drivers' responsive characteristics for VMS messages. Binary logistic regression (BLR) modeling techniques were applied to explore the relationships among drivers' message perceptions, message reading time, and amount of VMS messages. Probabilistic outcomes of the proposed BLR-based perception model could be greatly utilized to design VMS messages considering drivers' legibility performance. The major contribution of this study is to develop invaluable statistical models that can be used in designing VMS messages more effectively from the human factor point of view. The results could be further applied to establish the scheme of VMS message phase and duration.

• Journal of Korean Academy of Nursing Administration
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• v.9 no.1
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• pp.129-139
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• 2003

Purpose : The purpose of this study is to investigate the actual condition and recognition about social service activity(SSA) of nurses. Methods : This is a descriptive study. The data were collected by a structured questionare from July 15 to 31, 2002. The questionares were sent to 711 nurses of 38 hospitals, and 664 cases were returned. The answer rate is 93.4%. The data were analyzed by SPSS 11.0. Results : 1. 71.0% nurses had a SSA experience during university, but only 14.2% nurses are participated in SSA now. 2. In the case of having an experience, 56.0% nurses participated in SSA under 1 year, 69.5% nurses didn't support the service costs. 3. In the case of not having experience, the main reason why they didn't participate in is to lack of opportunity. 4. 91.1% nurses recognize the necessity of SSA and 99.5% nurses agree with the necessity of operation system. 82.9% nurses approve the cooperation system among the regions. 87.2% nurses have an intension to participate in SSA when the cooperation system is set up. Conclusion : It need to set up the social service operating system among the regions, and encourage nurse to participate in the SSA.

• Asian Pacific Journal of Cancer Prevention
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• v.16 no.2
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• pp.635-639
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• 2015

Background: In the absence of routine screening program for cervical cancer in Iran and high rate of diagnosed cancer in its advanced stage, recognition of sociodemographic factors related to delayed diagnosis of cancer in Iran could be helpful in reducing the burden of disease in our community. The aim of this study was to determine the stage of cervical cancer at diagnosis and factors related to delayed diagnosis of cervical cancer in Isfahan, Iran. Materials and Methods: In this cross sectional study women diagnosed with cervical cancer for the first time by histo-pathological examination were enrolled. According to the clinical and paraclinical findings and staging of the cancer, they were classified into early and delayed diagnosis of cervical cancer. Sociodemographic factors were compared in the two groups. Results: In this study of 55 women mean age was $48.3{\pm}12.0.$ According to our classification 6/55 (10.9%) and 49/55 (89.1%) of them had early and delayed diagnosis of cervical cancer. Delayed diagnosis of the cancer was significantly higher in patients with lower degree of education, lower socioeconomic status, having smoker and addict husband and those who did not have a history of Pap smear test (p<0.05). Conclusions: The results of this study indicated risk factors related to delayed diagnosis of cervical cancer. The affected women should be targeted for implementation of specialized educational programmes for improving knowledge and screening test.

• The Journal of the Acoustical Society of Korea
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• v.14 no.1
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• pp.31-39
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• 1995

In this paper, we have constructed phoneme discriminant filters [PDF] according to the linear discriminant function. These discriminant filters do not follow the heuristic rules by the experts but the mathematical methods in iterative learning. Proposed system. is based on the piecewise linear classifier and error correction learning method. The segmentation of speech and the classification of phoneme are carried out simutaneously by the PDF. Because each of them operates independently, some speech intervals may have multiple outputs. Therefore, we introduce the unified coefficients by the output unification process. But sometimes the output has a region which shows no response, or insensitive. So we propose time windows and median filters to remove such problems. We have trained this system with the 549 monosyllables uttered 3 times by 3 male speakers. After we detect the endpoint of speech signal using threshold value and zero crossing rate, the vowels and consonants are separated by the PDF, and then selected phoneme passes through the following PDF. Finally this system unifies the outputs for competitive region or insensitive area using time window and median filter.

• The Journal of the Acoustical Society of Korea
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• v.22 no.3
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• pp.188-193
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• 2003

Regardless of the distribution of the adaptation data in the testing environment, model-based adaptation methods that have so far been reported in various literature incorporates the adaptation data undiscriminatingly in reducing the mismatch between the training and testing environments. When the amount of data is small and the parameter tying is extensive, adaptation based on outlier data can be detrimental to the performance of the recognizer. The distribution of the adaptation data plays a critical role on the adaptation performance. In order to maximally improve the recognition rate in the testing environment using only a small number of adaptation data, supervised weighted training is applied to the structural maximum a posterior (SMAP) algorithm. We evaluate the performance of the proposed weighted SMAP (WSMAP) and SMAP on TIDIGITS corpus. The proposed WSMAP has been found to perform better for a small amount of data. The general idea of incorporating the distribution of the adaptation data is applicable to other adaptation algorithms.

• Journal of Digital Convergence
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• v.16 no.4
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• pp.29-37
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• 2018

The purpose of this study is to analyze the effects of self-development competency on employment readiness for job achievement of women's university students and to enhance the recruiting rate of female students ultimately. This paper classified the factors of self-development competency and employment readiness and defined a new research model. This study is meaningful what self-development competency is actually helpful for female undergraduates to get a job. Both self-recognition skill and self-control skill have positive primary effects on their career development skills in self-development competency. Career development skills has a positive secondary effect on not only their goal setting for job seeking but also their searching for job information. This paper suggests that career development skills is of paramount importance so as to improve employment readiness. It is expected that executable education policies and cases can be more developed on the basis of this study.

• Journal of Haehwa Medicine
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• v.24 no.1
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• pp.1-14
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• 2015

Objectives : The purpose of this study is to examine senior citizens' perception of medical welfare service in Daejeon, and to investigate the level of Korean Medicine University students' satisfaction about medical services that they have done. Methods : We visited Daejeon city hall and Dae jeon Seo-gu community health center, and interviewed them. After that we select two population and did two different surveys. First, to investigate the current state of medical services and medical welfare in Daejeon, we select neglected class senior citizens who were serviced at social welfare center. Second, we select Daejeon Korean Medicine University student to investigate the level of satisfaction about medical services and pre-education. In first population, we random select 25 of 34 senior citizen who visits mere social welfare center. In second population, we random select 78 of 115 Korean Medicine University student who belongs to medical welfare club. Results : We found some advantages and problems in medical services. A lot of senior citizen who were serviced at social welfare center showed high level of satisfaction about medical service. But there were few citizens who knows about health & medical welfare. And most Korean Medicine University student who services medical service to neglected class senior citizens showed high level of satisfaction. Conclusion : We concluded that medical welfare for senior citizen needs more publicizing. Because result of our survey, many senior citizens showed not only low level of recognition in medical welfare service, also showed low utilization rate in public health center. And most Korean Medicine University students were satisfied with themselves about medical service that they have done, it seemed medical service gives beneficial influence to not only senior citizen but also Korean Medicine University student.

• Journal of IKEEE
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• v.5 no.2 s.9
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• pp.190-200
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• 2001

This paper is addressed to welding defect feature vector selection and implementation method of welding defect classifier using fuzzy techniques. We compare IAV, zero-crossing number as time domain analysis, power spectrum coefficient as frequency domain, histogram as both domain for welding defect feature selection. We choose histogram as feature vector by graph analysis and find out that maximum frequent occurrence number and section of corresponding signal scale in relative histogram show obvious difference between normal welding and voiding with penetration depth defect. We implement a fuzzy welding defect classifier using these feature vector, test it to verify its effectiveness for 695 welding data frame which consist of 4000 sampled data. As result of test, correct classification rate is 92.96%. Lab experimental results show a effectiveness of fuzzy welding defect classifier using relative histogram for practical Laser welding monitoring system in industry.

• Korean Journal of Health Education and Promotion
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• v.11 no.2
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• pp.57-67
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• 1994

The aim of this study was to research and compare the demographic characteristics of drug abusers with non-drug abusers among junior high school students in Japan through a closed format questionnaire. The same questionnaire and face-to-face interviews were used in order to find the circumstances of drug abuser among Kyogoin(a sort of child welfare institution) students in Japan. The goal of the study was to provide basic materials for preventive education of drug abuse through the two investigations mentioned above. Between July 1993 and November 1993, the information for this study was collected from 964 students from 4 junior high schools, and also 142 students from 3 Kyogoin in Japan. A total of 1106 questionnaires were completed resulting in a following response rate of 90.4%. Information was based on the scales : family relation scale, school life scale, recognition on danger of drug abuse scale, family environment scale (Moos, 1986), self esteem inventory (Coopersmith, 1967), etc. The conclusions can be summarized as follows : 1. Drug abusers are more likely to lake communication in their families and have poorer human relations than non-drug abusers. Also their school life scores tended to be lawer non-drug abusers. 2. It was between their 6th year of elementary school and their first of Junior high school when the drug was first used. The drug of choice which they made their first attempt at using was a volatile solvent which was inhaled. It is likely that this drug is "gateway-drug" for adolescents in Japan because they then also tried other drugs (e.g. cocaine, marijuana, etc.) step by step. 3. It is therefore clearly important that greatly increasing education on the harmful effects of drug abuse before the summer vacation of the first term of the sixth year of elementary school. At the same time, intervention in the family will have an effective prevention strategy in Japan, as well., as well.