• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.513-516
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• 2013

In this paper, we present an information collecting system in medical information management domain. Our proposed system performs a systemized process, consisting of collection, transmission, and management, to develop intelligent medical information system and medical big data processing system. Our information collecting system consists of low-power biomedical sensors, biomedical information collecting devices, and storage systems. Currently, almost biomedical information of patients is collected manually by employees like nurses and medical doctors. Therefore, collected biometric data can be error-pronoun data. Since there is a lack to make big data of medical information, it is difficult to enhance the quality of medical services and researches. Accordingly, through our proposed system, we can overcome the problems like error-pronoun biometric data. In addition, we can extremely extend the area of collectable biometric data. Furthermore, using this system, we are able to make a real-time biomedical analysis system, like a real-time patient diagnosis system, and establish a strategy to against future medical markets changing rapidly.

• Smart Media Journal
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• v.12 no.1
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• pp.9-16
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• 2023

Recently, a convolutional neural network (CNN) based system is being developed to overcome the limitations of human resources in the apple quality classification of farmhouse. However, since convolutional neural networks receive only images of the same size, preprocessing such as sampling may be required, and in the case of oversampling, information loss of the original image such as image quality degradation and blurring occurs. In this paper, in order to minimize the above problem, to generate a image patch based graph of an original image and propose a random walk-based positional encoding method to apply the graph transformer model. The above method continuously learns the position embedding information of patches which don't have a positional information based on the random walk algorithm, and finds the optimal graph structure by aggregating useful node information through the self-attention technique of graph transformer model. Therefore, it is robust and shows good performance even in a new graph structure of random node order and an arbitrary graph structure according to the location of an object in an image. As a result, when experimented with 5 apple quality datasets, the learning accuracy was higher than other GNN models by a minimum of 1.3% to a maximum of 4.7%, and the number of parameters was 3.59M, which was about 15% less than the 23.52M of the ResNet18 model. Therefore, it shows fast reasoning speed according to the reduction of the amount of computation and proves the effect.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.25 no.4
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• pp.101-110
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• 2017

This research identifies the relation between the quality of cabin service(personnel and material services) in Korean low-cost airlines and resulting customer satisfaction and loyalty. Its aim is to provide low-cost airlines' international flights with basic information when building strategies, and to suggest a strategic implication for an original and competitive cabin service policy that can enhance customer retention. As a result of the analysis, first, hypothesis 1 on relation between the quality of Korean low-cost airlines' cabin service and customer satisfaction was all valid. Moreover, it was coherent with the results of previous researches. Second, hypothesis 2 on relation between the quality of Korean low-cost airlines' cabin service and customer satisfaction was also valid and coherent with previous studies. Third, hypothesis 3 on relation between customer satisfaction and loyalty was valid and coherent with existing studies. Consequently, this research suggests that in order to achieve the continuous retention of loyal customers through customer satisfaction, the quality of personnel and material service has to be considered primarily. In addition to that, this research also suggests that the original and competitive service marketing of low-cost airline is necessary for an airline to continue its profit-making.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.180-181
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• 2011

에너지 절약 최적화를 위한 녹색 기술개발은 지속가능경제와 화석연료 사용에 의한 부작용을 최소화하기 위한 전세계적 화두로 대두되고 있다. 중소기업은 다양한 품목에서 자체적인 생산활동을 수행하며 대기업 제품에 사용되는 부품을 실질적으로 공급하고 전체 근로자의 85%이상을 고용하는 등 국가적인 부가가치 창출에 큰 역할을 수행하고 있으나, 인적자원과 관리 인프라의 부족과 부재로 인해 체계적인 에너지 관리를 통한 에너지 사용 절감을 위한 최적화 활동 수행에 한계점을 가지고 있다. 그러나, 향후 직접적인 에너지 절감을 통한 원가 경쟁력 향상은 물론 향후 탄소 거래제와 생산 공정과 결과물에 대한 정량적인 탄소배출량 관리제도의 법제화에 대비하여 이러한 제한상황에 대한 해결안 제시가 절실하게 요구되고 있다. 본 논문은 이러한 문제를 해결하기 위하여 서해안 산업단지를 대상으로 한국산업기술대학교 전력저감센터에서 개발중인 중소기업을 위한 energy saving management system (ESMS)에 대해 기술한다. ESMS는 개별 공장에서 소비되는 전체전력과 대표 부하에서의 소비전력의 전력품질과 현황을 모니터링하고 부하특성에 맞는 전력저감 메커니즘을 제공한다. 또한 자체적인 과거 소비전력 경향과 광역 공단의 전체 소비 데이터와의 비교 데이터를 통해 자체적인 전력 소비 현황 및 절감대책을 수립하도록 지원한다.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.19 no.1
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• pp.74-87
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• 2011

This paper tried to research the relationship among the passenger's satisfaction and expectation of in-flight service quality, overall satisfaction and passenger's Loyalty by emphasizing on two groups of passengers and cabin crews from K-airline to find out which service quality area should be focused on for pursuing premium in-flight service. Such six service quality areas as in-flight equipment, food&beverage, duty-free sales, service ability, service image and specialized service were conceived and survey questions were made based on relevant previous researches. The analysis has used the data of 281 passengers and 336 cabin crews from K-airline. According to the analysis, in physical service factors, passengers perceive satisfaction from duty-free sales contributes to overall service satisfaction. However, cabin crews believed in-flight equipment and food&beverage are important to overall service satisfaction. In human service factors, both groups seemed to agree service ability and service image have a positive impact on overall service satisfaction. Among service satisfaction factors, the customer's satisfaction from cabin crew's service ability(service response, professional knowledge and foreign language skill) is also proven to be directly connected to customer loyalty.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.26 no.3
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• pp.1-8
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• 2018

Aviation industry is growing rapidly, and this growth is expected to continue. However, aircraft accident rate is still high, and 65 percent of accidents occur during landing phase due to unstable approach. Therefore, this research analyzed causes and countermeasures of unstable approach. In order to derive countermeasures, this study selected P International Airport as an example case. In addition, this research analyzed A airline's FOQA data, regional Standard Operating Procedures, and 5 years of environmental factors to identified correlation of those contributing factors. In conclusion, his research concluded following results. First of all, because of P International Airport's geological features, pilots are required to conduct Circling Approach, and this advanced maneuver increases workload at the final stage of flight. Secondarily, meteorological factors such as crosswind, seasonal rain front, local visibility contributes unstable approach. Lastly, these geological and meteorological factors are interrelated, and this uncommon environment can decrease circumstantial judgement ability of pilots and jeopardize aviation safety. As a consequence, it is recommended to reinforce the Crew Resource Management and Threat & Error Management systems so that pilots can perceive identical safety target.

• Journal of Distribution Science
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• v.15 no.4
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• pp.59-67
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• 2017

Purpose - This study's aims are to examine the effects of airline service quality on brand image, brand attitude and reuse intention and the mediating roles of brand image and brand attitude in the relationship between airline service quality and reuse intention. Research design, data and methodology - A total of 500 questionnaire copies were distributed and 474 were used for the empirical study after excluding some empirical inappropriate or unusable ones. To analyze the collected data, the SPSS/WIN 22.0 statistical package was used. Results - The result of analysis showed that all the intangible, tangible and human elements of the airline service quality positively influenced on brand image and brand attitude and did not directly influence on reuse intention. However, brand image and brand attitude played mediating roles in the relationship between all the service quality elements and reuse intention. Conclusions - This means that airlines need to develop service quality, which is differentiated and provides special feelings for customers and work out improvement strategies for positive brand images and attitudes, since customers choose and reuse airlines, based on brand images and attitudes, which are perceived and formed through the experience of airline service quality and word of mouth.

• Proceedings of the KAIS Fall Conference
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• 2012.05a
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• pp.401-405
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• 2012

우리나라의 서비스 직업에 대한 고용비중이 점차 높아지고 있는 동시에 여성의 경제활동도 함께 증가하는 추세를 보여주고 있다. 또한 현재 경영의 환경에 있어서의 소비자들은 기업과의 직접적인 대면과 함께 우량의 서비스 품질을 요구하는 경영환경의 시대에 있다. 각 기업은 차별화 전략으로서 최상의 서비스 제공을 통한 고객 만족 극대화에 초점을 맞추고 있으며 특히, 서비스 기업에서 추구하는 고객만족 또는 서비스 만족도가 기업의 경쟁우의를 결정짓고 기업의 이미지를 표현하는 중요한 요인으로 여겨지고 있다. 이러한 고객만족을 중시하는 기업과 조직의 목표에 의해 대부분의 고객센터의 여성 근로자들은 조직이 요구하는 감정표현의 규범에 의해 자신의 감정이나 느낌을 고객에게 연출하도록 강요받고 있다. 근로자의 기분과 감정과는 관계없이 고객에게 미소와 친절을 보내야 하는 고객센터 근로자들은 감정노동을 하고 있는 것이다. 이에 본 연구에서는 서비스 산업 중에서도 여성인력에 대한 의존도가 높은 고객만족센터(텔레마케터 or 전화상담원)에 근무하는 여성근로자를 중심으로 감정적 부조화에 따른 감정노동이 직무스트레스에 미치는 영향에 대하여 알아보고 연구 결과를 통해 고객센터의 여성근로자들의 인적자원관리 차원에서 감정노동에 대한 인지와 직무스트레스 조절을 통한 관리에 시사점을 제안하고자 한다.

• The Journal of Bigdata
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• v.2 no.2
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• pp.105-114
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• 2017

Today, many services are supported on the web sites. Analysis of usage patterns of web site visitors is very important to optimize the use and efficiency of the web sites. In this study, analysis of usage patterns and comparative analysis of user groups were conducted by analyzing web access log provided by BPI Challenge 2016. This data provides access logs to the web site in the IT system of a Dutch Employee Insurance Agency (UWV). The customer information, and the click data describing the customers' behavior when using the agency's web site. In this study, we use process mining techniques to analyze the usage patterns of customers and the characteristics of customer groups, and ultimately improve the service quality of customers using web services.

• Proceedings of the Korea Database Society Conference
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• 2010.06a
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• pp.21-31
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• 2010

중소기업은 변화하는 경쟁 환경에 능동적으로 대처하고 경쟁력확보와 생산성 향상을 위하여 IT를 기반으로 하는 다양한 생산정보시스템을 도입, 운영하고 있다. 이에 따라 효율적인 중소기업 생산정보화를 위하여 시스템 개발 과정을 정형화하는 생산정보시스템의 표준화가 요구된다. 특히 중소기업, IT업체, 감리업체 등 참여 기업 간의 의사소통, 그리고 구축된 생산정보화의 유지보수를 포함한 운영지원 등의 체계적이고 효율적인 운영을 위해서는 생산정보시스템의 개발 방법론 (PDSM)이 필요하다. 이에 따라 중소기업기술정보화진흥원에서 생산정보화시스템개발방법론(PSDM)을 개발하여 보급하고 있다. 본 연구에서는 정부가 지원하는 중소기업 생산정보화지원사업에 참여한 기업을 대상으로 생산정보화시스템개발방법론(PDSM)을 적용한 IT 업체의 적용사례를 통해 방법론의 활용에 따른 생산성 향상 및 작용 시 고려사항에 대해 살펴본다. PSDM은 효과적인 중소기업 생산정보를 위하여 시스템 과정을 표준화 하고 단계별 주요 활동에 대한 연구와 함께 프로젝트 범위, 일정, 비용, 인적자원 관리를 위한 WBS(Work Blockdown Structure)작성, 시스템의 신뢰성 품질, 생산성 향상을 위한 관리 항목 등의 내용을 포함하고 있다.