• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.143-144
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• 2022

늘어나는 인건비와 코로나 시대가 다가오면서 무인 카페나 무인 편의점 등 무인 가게가 많아지는 것을 볼 수 있다, 그러나 가게 관리자가 없음에 따라 장기 체류 고객이 가게의 기물을 파손하는 문제가 증가하였다. 본 논문에서는 CCTV를 이용하여 장기 체류 고객을 인식하고 가게 관리자에게 알려주는 시스템을 설계하였다. 장기 체류 고객 알림에 따라 기물 파손이 발생할 때 관리자의 출동 시간을 단축하는 효과가 있다.

• Journal of the Korean association of regional geographers
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• v.20 no.1
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• pp.112-127
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• 2014

This study aims to understand the change of migrant policies, namely assimilation, multiculturalism and social integration, in the West through critical perspectives and to derive implications for the Korea's migrant policy from the experience of the West. In 1970s, assimilation policy was severely criticized from the limitation of cultural diversity, and multiculturalism expanded rapidly in the West focusing on the migrant's right and cultural difference. However, multiculturalism received severely criticism because it makes social isolation and segregation between mainstream society and migrants. Since 2000 social integration became the major policy for migrant incorporation, focusing migrant's attitude and practice to receive the value and culture of mainstream society with the active participation of socioeconomic activities. However, social integration policy reveal some problems which regard migrants as the object of control, and also as the object of discrimination. The experience of the Western policies suggests on the careful selection for the migrant's incorporation policies in Korea with the consideration of social inclusion of migrant, analysis on the problems of multiculturalism and social integration policy, and the necessity of mainstream society's change into the acculturation.

• The Journal of the Korea Contents Association
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• v.16 no.10
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• pp.81-95
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• 2016

This study aims to introduce a new approach to make up for the weak points in small business, to explore views of the small business employees and job-seekers on the basis of Q-Methodology. From the Q-methodology, the types of perception toward small business and their features from diverse views were drawn. The data from 33 participants were analyzed by using QUANL-PC program. The perception types were classified as four types: positive perception type, negative perception type, high evaluation about utilitarian pursuit type, neutral evaluation type. The results found that views toward small business are more positive than previous findings and perceptions were diverse beyond the dichotomy. Hence, to mitigate job mismatch, small business recruiting strategy should be provided based on diverse job-seeker types.

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.48 no.6
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• pp.43-50
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• 2011

Currently, conventional security methods including IC card or password type method are quickly switched into biometric security systems in various applications and the electrocardiogram (ECG) has been considered as one of novel biometrics way. However, conventional ECG based biometrics used lead II signal which conventionally used for formulaic signal to heart disease diagnosis and it is not suitable for biometrics since it is rather difficult to find consistent features for heart disease patents. To overcome this problem, we developed new biometrics system using ECG lead III signals. For wave extraction, signal peak points are extracted through AAV algorithm. For feature selection, extracted waves are categorized into one of four wave types and total twenty two features including number of vertices, wave shapes, amplitude information and interval information are extracted based on their wave types. Experimental results for thirty-six people showed 100% specificity, 95.59% sensitivity and 99.17% of overall identification accuracy.

• Journal of Science Education
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• v.35 no.2
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• pp.193-203
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• 2011

The purpose of this study is to investigate and analyze high school girls' observational characteristics. A total of 77 female high students were asked to observe 'Las Meninas', a well known 17th century painting by Diego Velazquez and volumetric flask. MBTI(Myer Briggs Type Indicator) was implemented for student's personal characteristics. We analyzed testimony into its differences between objective and practical, and subjective and abstract, wholeness by character type. As a result, 41 participants have preference for sensuous recognition and the rest of the 36 participants have preference for intuitional recognition. From the observation statement, it showed differences of the results according to their character type. As the result that it showed above, learners used two ways of recognition but they showed tendency with strong reliance on their preferred recognition. In case of preferring the sensuous recognition, it tended towards the basis of phenomenological analysis, objective fact and physical judge. However, in case of preferring the intuitional recognition, it tended to observe by momentary thinking, flash of idea and meaning behind.

• Journal of Korea Port Economic Association
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• v.33 no.4
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• pp.59-72
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• 2017

The purpose of this study is to analyze and compare the perceived job satisfaction of logistics company employees and students majoring in logistics who expect to engage in logistics occupations after graduation, and to suggest its implications in improving logistics job satisfaction. Based on previous studies on job satisfaction for logistics and other industries, the pertinent factors to logistics job satisfaction were identified, and a survey was conducted for logistics company employees and students majoring in logistics. Additionally, frequency analysis, reliability analysis, and t-test were performed to compare the differences in logistics job satisfaction. As a result of comparing the perceptions differences in job satisfaction between logistics company employees and students majoring in logistics, each pair of the following were significantly different: personal achievement, social achievement, job prospect, and economic satisfaction. However, there was no meaningful difference in job security and recognition from others.

• Journal of the Korea Institute of Building Construction
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• v.16 no.6
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• pp.553-560
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• 2016

Wage is a very important issue not only for the workers' current living but also for the future laboring landscape. As of 2014, it is reported that about 290,000 workers suffer from delay in payment of wage. The construction industry is particularly labor-intensive, which implies that delay in payment of wage is a serious problem. Despite this fact, in terms of the delayed payment of wage most studies have been conducted on the improvement of a system to resolve delayed payment in exclusion of labor workers' awareness and thinking. Thus, the purpose of this study is to understand construction labor' awareness and analyze the effectiveness of the resolution step of the delayed payment of wage based on construction labors' awareness. In the research result, more than 30 percent of all construction labors and managers are never aware of the settlement procedure of the delayed payment, and it appears that the resolution step system needs to be greatly improved. In conclusion, it is expected that this study will be utilized as fundamental data for the settlement procedure of the delayed payment, and the influence of delayed payment on construction labors' safety behavior and productivity should be further studied in the future.

• Journal of the Korea Convergence Society
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• v.9 no.6
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• pp.321-327
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• 2018

The study aims to investigate university students' perception of syllabus and their satisfaction of its components. A survey was conducted of the whole student body in a university located in Daejeaon city. 996 students answered the questionnaire. The findings of the study are as follows: Females or upper grade students showed a more positive response to the syllabus than males or lower grade students. The group who positively perceived satisfaction of the syllabus showed less satisfaction of the syllabus components. The subjects evaluated the details or directions of the categories of Exams, Assignment, and Instructors' information were insufficient or incorrect. The pedagogical implications and suggestions for syllabus are also discussed.

• The Journal of the Korea institute of electronic communication sciences
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• v.11 no.2
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• pp.215-222
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• 2016

Research on gait recognition and its use is actively underway. This study suggests a method to recognize abnormal gaits of pedestrians. The purposes of the existing research to recognize normal steps are to measure physical activities and to validate people by their walks, but the purpose to recognize abnormal steps in this study is to insure the safe life of pedestrians. There are situations in which pedestrians are unaware of themselves vulnerable and can not ask for help. The purpose of this research is that even if pedestrians are unaware of themselves and there are no spontaneous requests for helps, it is intended for them to escape from dangers and difficulties by adopting the recent IOT technology. Hence, this study analyzes normal pace of pedestrians using the triaxial acceleration sensors, and takes ranges of their normal walking. And then, the steps of pedestrians are measured using the triaxial acceleration sensors, contrasted with their normal walking ranges, and determine whether their steps are normal or not. When it is out of the state for normal paces, a method to determine as abnormal paces is suggested.

• Journal of the Institute of Electronics and Information Engineers
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• v.52 no.12
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• pp.150-157
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• 2015

Pedestrian detection has largely been researched as one of the important technologies for autonomous driving vehicle and preventing accidents. There are two categories for pedestrian detection, camera-based and LIDAR-based. LIDAR-based methods have the advantage of the wide angle of view and insensitivity of illuminance change while camera-based methods have not. However, there are several problems with 3D LIDAR, such as insufficient resolution to detect distant pedestrians and decrease in detection rate in a complex situation due to segmentation error and occlusion. In this paper, two methods using GM-PHD filter are proposed to improve the poor rates of pedestrian detection algorithms based on 3D LIDAR. First one improves detection performance and resolution of object by automatic accumulation of points in previous frames onto current objects. Second one additionally enhances the detection results by applying the GM-PHD filter which is modified in order to handle the poor situation to classified multi target. A quantitative evaluation with autonomously acquired road environment data shows the proposed methods highly increase the performance of existing pedestrian detection algorithms.