• 한국벤처창업학회:학술대회논문집
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• 2017.04a
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• pp.24-24
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• 2017

본 연구에서는 카페 비즈니스에서 중요한 서비스 품질의 여러 요인 중 카페의 사회문화성이 새로운 커피 비즈니스의 주요 특성으로 대두됨을 인식하여 이를 통해 카페의 이미지와 브랜드 충성도의 향상방안을 모색해보고자 함에 본 연구의 목적이다. 커피 전문점 중 전문브랜드와, 지역브랜드, 개인카페를 중심으로 설문을 통해 이를 분석한 결과, 카페 서비스품질 중 사회문화성은 전국 프랜차이즈는 브랜드 충성도를 도리어 낮추는 결과를 주지만 개인카페는 브랜드 충성도를 높이는 요인으로 작용하는 차별된 효과가 나타나 개인카페나 지역프랜차이즈의 카페 비즈니스에서는 전문성이 기반이 되어야만 브랜드 충성도를 향상시킬 수 있으며, 개인카페는 지역 프랜차이즈보다는 더욱 덜 복잡한 서비스 전략이 필요한 것으로 나타났다. 또한 개인카페의 특수한 사항들이 사회문화성을 통한 브랜드 이미지를 향상시키고 이를 통해 브랜드 충성도를 높이는 것을 알 수 있다. 결과적으로 전국 프랜차이즈는 서비스 품질 중 접근성과 확신성을 통해 브랜드 이미지와 브랜드 충성도가 높아지는 전략이 우선적으로 대두되며, 그 외의 서비스 품질들은 충분히 현재의 상태로도 매우 만족스러운 결과인 것으로 나타났다. 반면, 지역 프랜차이즈의 경우는 서비스 품질 중 확신성이 강화되고, 서비스 전문성과 접근성을 통해서 더욱 브랜드 이미지와 브랜드 충성도를 향상시킬 수 있는 전략이 마련되어야 전국 프랜차이즈화 될 수 있는 고객의 인지력을 향상할 수 있는 전략이 모색된다. 반면, 지역기반의 개인카페들은 전국단위의 프랜차이즈보다 전국단위의 프랜차이즈로 나아가기 위해서는 지역기반의 지역프랜차이즈 카페들보다도 전문성 강화가 중요하며, 사회문화성을 강조하는 서비스 전략을 통해 고객들로 하여금 브랜드 충성도를 높이도록 전략화 방안이 필요하다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2004.11a
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• pp.232-235
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• 2004

The apartment reconstruction project is making some problems, such as delay of lack specialty, conflict between project owners and cost increasing etc. The enforcement process of project are very complicated, the term of project is long and too many project owners are participating. For this reasons. it is always in the face of uncertainty. To promote the reconstructing project successfully. we need to make risk management process to get rid of uncertain factors which occur in forwarding the reconstructing project This study has for its objects. First, suggest the best way of risk analysis to manage risk factors systematically and efficiently recognized in The Apartment reconstruction protect. Second, furnish basic data to build the risk managing system of The apartment reconstructing project.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.10C
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• pp.992-1000
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• 2009

Available electric wave resources have been limited than frequency demands that increase with the development of radio communication. According to FCC's (Federal Communication Commission) report, 70% of allocated spectrum was unused. This means that the lack phenomenon of electronic wave resources is ineffectively managed compare with the finiteness of frequency resources. According to the recognition of unused frequency within allocated band, this progress has been investigating to identify the unused TV channel and provide radio communication services. This paper proposed the sensing algorithm that efficiently recognizes the frequency resources which does not use and shares with the licensed user through using the multi-band CIC (Cascaded Integrator Comb) filter based on polyphase filter bank. The simulation results verifies that the proposed scheme can obtain the similar performance of variance and relatively low complexity to the existing scheme.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.46 no.2
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• pp.114-123
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• 2009

Context-aware systems are reactive computing systems, aware of external context. Considering various sensors and actuators connected, application programming on top of such systems is known to be much more complex than in contentional ones. This paper suggests a formal framework for context-aware systems, by extracting their common properties. That makes a useful birds-eye view for the behaviors of a whole complex system, as a base for a convenient developing environment and systematic analysis. In this framework, reactive-ness is handled by event-condition-action rules and global state-transitions, which are essential in a lot of context-aware applications. In addition, behaviors of each elementary device are modelled with its own state-transitions, and tightly bound to the entire task.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.44 no.3
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• pp.57-67
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• 2007

Researchers in mobile AR systems have so far put the value on the technical challenges involved in the limitations imposed from mobility. Beyond such immediate technical questions, however, are questions regarding the possible contents that are to be used for the user’s interaction in ubiquitous computing environment. Various aspects of context of user and environment can be utilized easily as well as effectively. Moreover, the environment will be equipped with lots of pervasive but invisible computing resources. However, it is difficult for users to have access to those computing resources. At the same time, as the smart appliances get to have more features, their user interfaces tend to become harder to use. Thus, in this paper, we propose Context-Aware Mobile Augmented Reality (CAMAR) system. In our system, users only need to take a picture of smart appliances with a built-in camera in a mobile device when they intend to control the appliances. It lets users interact with the smart appliances through personalized control interfaces on their mobile devices. Also, it supports enabling contents to be not only personalized but also shared selectively and interactively among user communities.

• The Journal of the Acoustical Society of Korea
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• v.20 no.5
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• pp.35-47
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• 2001

This paper describes an efficient harmonic-CELP speech coder by taking advantages of harmonic and CELP coders into account. According to frame voicing decision, the proposed harmonic-CELP coder adopts the RP-VSELP coder as a fast CELP in case of an unvoiced frame, or an improved harmonic coder in case of a voiced frame. The proposed coder has main features as follows: simple pitch detection, fast harmonic estimation, variable dimension harmonic vector quantization, perceptual weighting reflecting frequency resolution, fast harmonic synthesis, naturalness control using band voicing, and multi-mode. These features make the proposed coder require very low complexity, compared with HVXC coder To demonstrate the performance of the proposed coder, a 2.4 kbps coder has been implemented and compared with reference coders. From results of informal listening tests, the proposed coder showed good quality while requiring low delay and complexity.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.05a
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• pp.901-904
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• 2014

As sensing techniques have advanced, context-aware technologies have been developed under the various domain for each different purpose. The number of services were created and are being used actually, but the services for specific spatial domain are not adequate yet. To solve this, there have been many efforts, and some of them were actually successful. Among them, the methods which used ontology-based inference were relatively reliable and appropriate for context-aware system, but not able to support contexts for individual without complex rules. In this paper, current scope of context inference is extended from user-oriented context modeling to entity-oriented. Furthermore, we used user profile and home profile to provide more specific context information of not only each individual but entity.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2005.11a
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• pp.175-178
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• 2005

스마트 홈과 같은 유비쿼터스 환경은 다양한 센서 및 제어 네트워크가 밀집되어 있는 복잡한 시스템이다. 본 논문에서는 이러한 환경하에서 복잡한 인터페이스의 사용에 대한 사용자의 인지 부담(cognitive load)를 줄이고 개인화된(personalized) 서비스를 자율적으로 제공하기 위한 사용자 행동 패턴 선호도 학습 기법을 제안한다. 이를 위해 지식 발견(Knowledge Discovery)을 위한 평생 학습(life-long learning)의 관점에서 퍼지 귀납(Fuzzy Inductive)학습 방법론을 제안하며, 이것은 수치 데이터로부터 입력 공간에 대한 효율적인 퍼지 분할(fuzzy partition)을 얻어내고 일관성있는(consisitent) 퍼지 상관 룰(fuzzy association rule)을 얻어내도록 한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.9
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• pp.182-187
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• 2019

With the transition to the era of the Fourth Industrial Revolution, movements of overall change, including technology, society and culture, are becoming increasingly diverse. Among these, even the manufacturing industry, which can be regarded as Korea's leading core industry, is also seeing great changes centered on smart factories. Expert analyses and corporate opinions suggest that smart factories are needed to be competitive in the manufacturing sector. In this study, the impact of small and medium manufacturers' awareness regarding smart factories was analyzed through a survey. The results showed that the need for smart plant construction and the degree of awareness regarding this was very high. In a survey of the planned or implemented level, more companies were expected to deploy, implement, and reduce instruments than those that did not have a plan to build smart factories. The main difficulties involved in deployment were funding problems and the results of the preliminary review phase were derived in order to successfully build a smart factory. Therefore, financial support was most needed to build smart factories, and a need to upgrade the support amount, match it with suppliers for a preliminary review and expand consulting was found.

• Archives of design research
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• v.12 no.1
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• pp.97-106
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• 1999

As the Production technology Progresses, the necessity to consider consumers needs being complex and diverse in the phase of developing product is being more important. However, existing system of consumers needs being structured with the view of marketing is too abstractive and categorical to apply in the phase of developing product. So, the goal of this study is to establish method that structuralize customer's needs for applying practically in the phase of the product concept development and to suggest guidelines to needs structuralization with emphasis on the view of cognitive science/cognitive psychology. The major findings of this study is summerized as follows. First, to structuralize not only customer's needs category which being used as standard to assort needs in existing way but also practical needs features, it must contain the concept of emotion that is actual product's meaning to customers in its structure, and for this reason, the structuralized needs with emotions can be defined as emotional needs structure. Second, categorization of concept will be divided as essential concept and referential concept centering around symbolic concept, and from this supposition, emotional needs structure can be composed as benefit concept(essential concept), customer needs(referential concept) centering around emotion(symbolic concept).