유통업체 브랜드와 제조업체 브랜드의 태도와 구매의도 간의 경쟁효과 분석

최자영(Choi, Jayoung),최윤식(Choi, YunSik) 한국상품학회 2009 商品學硏究 Vol.27 No.4

본 연구는 구조방정식 모형을 이용하여 매장이미지가 PB및 NB의 태도와 구매의도에 어떤 역할을 하며,PB와 NB간에 경쟁효과를 인과구조 모형을 개발하여 그 모형에 대해 검증하였다.연구모형의 기본 틀은 매장이미지가 PB및 NB에 대한 태도와 구매의도 모두에 영향력을 가진다는 것과 PB태도와 NB구매의도,그리고 NB태도와 PB구매의도 간에는 부적인 효과가 있다는 과정으로 구성되었다. 연구결과,매장이미지가 좋을수록 소비자의 PB및 NB에 대한 태도는 긍정적으로 형성되는 것으로 나타났다.소비자가 특정 매장에 대해 긍정적인 이미지를 갖게 되면,매장 안에서 판매되는 PB와 NB에 대한 태도는 긍정적으로 형성된다고 볼 수 있다.둘째,본 연구에서는 PB에 대한 태도와 NB의도간의 관계와 NB에 대한 태도와 PB의도간의 관계에 대한 결과가 비대칭적인 결과가 도출되었다.즉,소비자가 PB에 대한 태도를 긍정적으로 형성하면,NB구매의도가 낮아진다.하지만,NB에 대한 태도와 PB구매의도 간의 관계는 통계적으로 유의하지 않는 것으로 나타났다.다시 말해서,PB에 대한 태도가 긍정적이면 PB의 구매의도가 높아지는 반면 NB의 구매의도는 낮아져서 예상했던 결과가 나왔다.그러나 NB의 태도가 좋으면 NB의 구매의도는 높아지나 PB의 구매의도에는 아무런 영향을 미치지 못하는 것으로 나타나 NB에 대한 긍정적인 태도가 경쟁브랜드인 PB에 대한 구매의도를 낮추지는 않는다는 결과는 PB판매전략에 새로운 시사점을 제공할 것이다. For 50 years many private brands (PB) have been dramatically developed and have been considered as a strategically important role in retailers. PB could provide a number of benefits to retailers, consumers, and small businesses. Retatilers could obtain hign unit margins by minimizing costs and build consumer's loyalty to their stores. Consumers could make a purchase a relatively low-price product. Small businesses could have an opportunity to not only achieve scale of economies in production, but also increase sales with less marketing cost. Recent studies demonstrated that many consumers are more likely to make a purchase decision by comparing PB and NBs due to the increases of PB's share in stores. However, most previous studies have been limited to understand consumers' purchase behaviors by accounting for competitive effects between PB and Bs. The purpose of the study is to examine not only the role of sore image on attitude and purchase intentions of PB and NB products, but also the competitive effects between PB and NB in the consideration set by using structural equation modeling. This research provides both academic and practical implications. First, the findings show that store image has positive effects on both attitude and purchase intentions of PB and NB. Positive store image leads to form positive attitudes and purchase intentions of PB and NB. Therefore, retialers should make an effort to highlight the importance of store image when building a retailing strategy. Second, there are competitive effects between PB and NB's attitudes and purchase intentions. Attitude toward PB increases Pb's purchase intention, but decreases NB's purchase intention. However, attitudes toward NB do not affect B's purchase intention. These finding would provide signficant implications for building PB's strategies in both retailing sector and small business.

네트워크와 시장: 신고전학파 시장이론 비판을 중심으로

최배근(Pae Kun Choi),최윤식(Yunsik Choi) 건국대학교 경제경영연구소 2006 商經硏究 Vol.31 No.2

Changes on the economic circumstance caused by development of the informationtechnology has been variously discussing in the fleld of economics since the 1990s. Thosechanges, however, have been mostly considered merely as technical shocks rather than as fundamental changes that operate economic system. This paper clearly points out that the network economy is another phase of relation of production whose mechanism is absolutely different from the market economy, This paper also shows the problems of current system where network is cooperating with market system. Externality caused by network could bring about disturbances on tile market price. Market economy stands on the principles of the exclusive private property and perfect competition between agents, while the network economy can get efficiency through co-ownership and cooperation, Above all, this paper aims to show the limitation of current economic thoughts. It is not possible that modern economics understand relations of production beyond market system, Modern economics are restricted and enervated to explain current economic situation, collision and contradiction between network economy and market economy, This paper tries to grope for a new economic recognition by revealing a historical root of marketeconomy and mainstream economics.

응급의료서비스에 대한 대중의 인식이 공공의료시스템 브랜드 자산에 미치는 영향

김기영(Ki-Young Kim),최윤식(Yunsik Choi),최지연(Jiyeon Choi),최성용(Sungyong Choi) 한국산업경영시스템학회 2021 한국산업경영시스템학회지 Vol.44 No.3

This study examines the effects of the public’s perception of emergency medical service (EMS) on the public health system’s brand equity and the moderating effect of governance on this relationship using Keller’s customer-based brand equity model. It uses four EMS functions: rescue/first-aid and transfer activities; disaster prevention, preparation, and response activities; educational activities in urgent situations; and medical treatment in emergency rooms to examine the effects of them on brand meaning of the public health system. Our findings are important for understanding the public as customers of the public health system and devising and/ or adapting healthcare policies and marketing strategies to develop brand equity and increase customers’ loyalty to the public health system.

New Motion Vector Prediction for Pipelined Motion Estimation in H.264/AVC

Jinha Choi,Yunho Jung,Yunsik Lee,Jaeseok Kim 대한전자공학회 2008 ICEIC:International Conference on Electronics, Inf Vol.1 No.1

This paper proposes a new motion vector prediction (MVP) scheme for high speed motion estimation (ME) in H.264/AVC. Though MVP is essential for high coding efficiency, ME with MVP cannot be processed in parallel for high speed implementation due to the data dependency of MVP. To eliminate this data dependency, MVP schemes are proposed. However these MVPs degrade coding quality for high speed processing. The proposed MVP uses the motion vectors in the neighboring macro blocks instead of those in the near sub-macro blocks which are used in the standard. Consequently, high speed ME is possible by using the proposed MVP and the processing time is reduced by up to 88% with insignificant coding quality degradation. The proposed MVP decrease 0.01 ㏈ Bjontegaard difference PSNR (BDPSNR) and increase 1.08% BD bit rate. The proposed MVP is verified with ME architecture which can encode SD (720×576) resolution video sequence in real-time at 54MHz operation clock with 284K logic gates.

차량 CAN 데이터를 이용한 딥러닝 기반 실시간 운전자 성향 분류 기법

신윤식(YunSik Shin),송희진(HeeJin Song),박재용(JaeYong Park),최준원(JunWon Choi) 한국자동차공학회 2020 한국자동차공학회 부문종합 학술대회 Vol.2020 No.7

In this paper, we propose a deep learning-based driver’s style classification method using the CAN data. We collected the 7 hours of CAN data for 100 drivers with different driving style in suburb area in Kwangju province. We categorized the driving style into “sport” versus “comfort” based on the surveys from both driver and passenger. We use the 1D Convolutional Neural Network(1D-CNN) model to extract the feature from 25.6 seconds of the CAN data and train the model to classify between the sport and comfort styles from the feature. Our evaluation shows that the proposed method achieves the accuracy of 80.94% for the test dataset and exhibits reasonable rea-time classification performance when deployed in a test vehicle.

The Brightness Characteristics of the V- grooved LGPs Carved with Heated Tip

Kyuman Choi,JoonMo Lee,Yunsik Lee,SeungMok. Lee 대한전자공학회 2010 ICEIC:International Conference on Electronics, Inf Vol.1 No.1

LGP referred as an important component in a back light unit of the LCD. Appropriate cutting conditions of the tip were investigated followed by the LGP was fabricated using the previously optimized tip. The tip was heated to make the V-groove which possessed the depths of tens to hundreds ㎛. The brightness and brightness uniformity characteristics of the LGP fabricated in this experiment were found to be about 20% and 15% higher than that of the commercial products.

IoT-Cloud 융합 가상기계 시스템을 위한 Ahead-of-Time 컴파일 시스템의 설계

최찬휘 ( Chanwhi Choi ),손윤식 ( Yunsik Son ),이양선 ( Yangsun Lee ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.2

사물인터넷 기술의 사용이 증가하고 있으나 장치 및 플랫폼의 종류가 다양하여 한 번 구현한 응용프로그램을 재사용하기 어렵다. 사물인터넷 장치에서 가상기계를 사용하여 이러한 문제점을 해결할 수 있지만 가상기계의 응용 프로그램 실행 속도는 네이티브 코드에 비해 속도가 느려 가상기계의 실행속도를 개선할 필요가 있다. AoT 컴파일은 바이트코드를 네이티브 코드로 사전에 컴파일하여 가상기계의 실행 속도를 향상시키는 기법이다. 본 논문에서는 IoT-Cloud 융합 가상기계 시스템을 위한 AoT 컴파일 시스템을 설계한다. 설계한 시스템은 사물인터넷과 클라우드의 융합 환경에 적합하며, 바이트코드 중 일부만을 네이티브 코드로 컴파일하므로 네이티브 코드 로드에 의한 가상기계의 메모리 부담이 적다.

사물인터넷을 위한 경량 가상기계의 설계 및 구현

최찬휘 ( Chanwhi Choi ),손윤식 ( Yunsik Son ),정준호 ( Junho Jeong ),이양선 ( Yangsun Lee ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.1

다양한 사물인터넷 장치 환경간의 응용 프로그램의 플랫폼 독립성을 지원하기 위해 가상기계 기술을 사용할 수 있다. 그러나 사물인터넷 장치 환경은 가용 메모리가 한정적이므로 사물인터넷 환경에서 가상기계의 동작이 가능하게 하려면 적은 메모리를 사용하도록 경량화해야 한다. 본 논문에서는 경량의 가상기계를 설계하여 가용 메모리가 적은 저성능 사물인터넷 기기에서도 동작할 수 있게 하였다. 또한 가상기계를 구조적으로 설계하여 다양한 사물인터넷 장치의 성능에 따라 적합한 구성으로 이식할 수 있다.

심볼 테이블을 이용한 보안약점 정적 분석 도구의 설계

최광훈(Kwanghun Choi),박지현(Jihyeon Park),손윤식(Yunsik Son),오세만(Seman Oh) 한국정보과학회 2015 한국정보과학회 학술발표논문집 Vol.2015 No.12

ORiginal Article : Endoscopic and Clinical Factors Affecting the Prognosis of Colorectal Endoscopic Submucosal Dissection-Related Perforation

( Dong Uk Kang ),( Yunsik Choi ),( Ho Su Lee ),( Hyo Jeong Lee ),( Sang Hyoung Park ),( Dong Hoon Yang ),( Soon Man Yoon ),( Kyung Jo Kim ),( Byong Duk Ye ),( Seung Jae Myung ),( Suk Kyun Yang ),( Jin 대한간학회 2016 Gut and Liver Vol.10 No.3

Background/Aims: Although colorectal endoscopic submucosal dissection (ESD)-related perforation is not uncommon, the factors affecting clinical outcomes after perforation have not been investigated. This study was designed to investigate the factors influencing the clinical course of ESD-related colon perforation. Methods: Forty-three patients with colorectal ESD-related perforation were evaluated. The perforations were classified as endoscopic or radiologic perforations. The patients’ medical records and endoscopic pictures were analyzed. Results: The clinical outcomes were assessed by the duration of nil per os, intravenous antibiotics administration, and hospital stays, which were 2.7±1.5, 4.9±2.3, and 5.1±2.3 days, respectively. Multivariate analyses revealed that a larger tumor size, ESD failure, specific endoscopists, and abdominal pain were independently related to a poorer outcome. The time between perforation and clipping was 15.8±25.4 minutes in the endoscopic perforation group. The multivariate analysis of this group indicated that delayed clipping, specific endoscopists, and abdominal pain were independently associated with poorer outcomes. Conclusions: Tumor size, ESD failure, abdominal pain, and the endoscopist were factors that affected the clinical outcomes of patients with colorectal ESD-related perforation. The time between the perforation and clipping was an additional factor influencing the clinical course of endoscopic perforation. Decreasing this time period may improve outcomes. (Gut Liver 2016;10:420-428)