• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.7
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• pp.925-934
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• 2017

R-tree is index structure which is frequently used for handling spatial data. However, if the number of dimensions increases, or if only partial dimensions are used for searching the certain data according to user preference, the time for indexing is greatly increased and the efficiency of the generated R-tree is greatly reduced. Hence, it is not suitable for the multidimensional data, where dimensions are continuously increasing. In this paper, we propose a multidimensional hash index, a new multidimensional index structure based on a hash index. The multidimensional hash index classifies data into buckets of euclidean space through a hash function, and then, when an actual search is requested, generates a hash search tree for effective searching. The generated hash search tree is able to handle user preferences in selected dimensional space. Experimental results show that the proposed method has better indexing performance than R-tree, while maintaining the similar search performance.

• Journal of Distribution Science
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• v.9 no.2
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• pp.31-36
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• 2011

I conducted empirical analyses of what happens when an offline channel expands to an online channel and whether the pre-existing offline channel's competitive assets (e.g. brand reputation and level of service satisfaction) can be linked to online channel preference. I found that an offline channel's brand reputation and level of service satisfaction can have a direct influence on offline channel preference and a second-hand influence on online channel preference. Thus, if the competitiveness of the online channel is strong enough and its customers have a higher preference for the offline channel, they will be committed and loyal to the company. The resultant enhanced competitiveness of the offline channel will present opportunities for both present and future success. The main results are the following. First, the management of the distribution channel service quality is more important than that of the brand reputation. Customers' experiences of service and subjective evaluations are not important only as the leading factors in the long-term brand reputation management but also as influential factors in channel preference. SoThus, given that the service quality of the pre-existing channel is not the customers' main concern, a strategy of improving the level of service satisfaction aimed at present customers is more valuable than a wide brand positioning strategy aimed at general and new customers. Second, when an offline channel company establishes an internet shopping mall on an online channel, it is highly likely that the preference and subjective evaluation of the present customers will influence the online channel. This applies not only to the special case of an expansion from an offline intermediary channel to an online one, but also to an online channel acting as an expansion of the business model of a conventional manufacturing or service company: both cases are vertical integrations of marketing channels in an expansion of the distribution channel. My theory applies to a wide range of contexts. Third and finally, any business strategy can grasp the meaning of 'channel expansion. Fundamentally, it is an expansion of the sales activity channel and marketing activity. However, it is also a way of enhancing marketing and sales competitiveness through an expansion to an online or offline channel. The expansion of an offline company to an online channel could be seen not as improvement but as an innovation of the business process by which two goals are achieved with one technique. The former is expected to increase the sales of the offline company, and the latter is also expected to increase sales while also contributing to cost reduction.

• Journal of Korean Elementary Science Education
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• v.28 no.4
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• pp.440-449
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• 2009

The purpose of this study is to make a preference and result analysis on the free inquiry method of pre-service elementary school teachers. Also, this study investigates how free inquiry activities effect the science-related attitudes and the self-directed learning characteristics of pre-service elementary school teachers. For this study 76, second year, science education pre-service elementary school teachers from Busan National University of education were selected. The inquiry examined the effectiveness of each of the following teaching methods: the IIM method, the PBL method, the PROJECT method, and the small group inquiry method. The students were divided into groups in which they incorporated the respective methods into their practice. In conclusion, the IIM free inquiry activities proved to be much more effective than the PBL method, the PROJECT method, and the small group inquire method in terms of developing self-directed learning characteristics and science related attitudes at the significant difference of p=0.05.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.05a
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• pp.635-636
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• 2014

최근 몇 년간 전세계적으로 모바일 기기의 사용이 급속도로 증가되고 있다. 이는 모바일 App 기반으로 하는 전자상거래 형태의 다양한 변화와 웹과 같은 영향력 있는 모바일 앱 스토어의 성장에 영향을 주었다. 그러나, 수많은 App스토어에 존재하고 있는 애플리케이션은 간편한 추천방법으로 사용자에게 뷰 정보를 제공하여 다수의 사용자는 원하는 아이템을 찾는데 많은 시간과 노력을 기울여야 한다. 이에 본 논문에서는 재능마켓으로 "재능쇼핑"을 위해 집단지성을 기반으로 하는 재능추천 시스템을 제안한다. 이는 집단 지성을 기반으로 사용자의 선호도 정보와 재능정보를 분석 평가하여 구매자에게 재능쇼핑에 대한 아이템을 자동 추천하도록 설계 구현하였다. 따라서 본 논문에서 제안한 시스템은 소비자에게는 맞춤형 구매정보 제공을 가능하게 하며, 오픈 마켓 관리자에게는 구매자의 니즈에 대한 자동분석과 사용자 구매 효율성의 증진이 향상될 것으로 기대한다.

• Journal of the Korea Safety Management & Science
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• v.10 no.2
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• pp.211-216
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• 2008

Using this model, SN ratio of taguchi method for each of subjective factors as well as values of weights are used in this comprehensive positioning method for product. A example is presented to illustrate the model and to show a rank reversal when compared to a model that eliminates the highest and lowest customers' values allocating the weights and the subjective factors.

• Science of Emotion and Sensibility
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• v.2 no.2
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• pp.11-16
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• 1999

본 연구는 한국인들이 선호하는 열차용 시트 디자인에 대한 감성특성을 파악하고 이를 실제 디자인으로 구체화하고자 실시되었다. 시트 디자인의 감성평가를 위해 형용사들을 추출하였고, 이를 이용하여 한국인들이 기대하는 열차용 시트 디자인의 감성특성을 조사하였다. 여기서 추출된 감성특성을 실제 디자인으로 보다 쉽고 구체화시키기 위하여, 특징적인 시트 디자인들을 시각적인 그림으로 제시하고, 각각에 대한 감성특성 및 선호도 평가를 실시하였다. 이러한 결과들을 종합하여 선호되는 시트 디자인의 감성특성과 이러한 감성특성과 관련을 가지는 실제 디자인 특징에 대하여 분석하였다. 이를 토대로 새로운 시트들을 디자인하여 2차 디자인 평가를 실시하였고, 가장 선호되었던 디자인을 최종 디자인 대안으로 결정하였다.

• Food Science and Industry
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• v.44 no.1
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• pp.87-95
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• 2011

• Korean Journal of Bronchoesophagology
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• v.3 no.1
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• pp.50-60
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• 1997

조기후두암은 치료 목표는 생명을 구하면서 동시에 후두기능을 최대한으로 보존하는 것이라고 할 수 있는데, 치료자의 철학과 환자의 선호도에 따라 방사선 치료, 레이저 수술 그리고 후두부분적출술 등의 방법이 적용되고 있다. 어떤 치료 방법이던 재발암에 대한 구제치료를 포함하면, 궁극적인 생존율은 거의 비슷하다. 그러므로 일차 치료후 얼마나 적극적으로 환자를 추적관찰하고, 적절한 구제수술을 시행하느냐에 따라 생명의 보존 그리고 재발암에서의 기능의 보존 여부가 좌우된다고 할 수 있다. 향후 보다 체계적인 추적 관찰법과 최소의 환자 부담으로 최대의 성과를 거둘 수 있는 치료방법 이 연구되어져야겠다.

• Journal of the Korean Society for Library and Information Science
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• v.47 no.2
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• pp.143-159
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• 2013

A series of citation analyses are conducted to find out the characteristics of citation behavior in the field of military science and technology in Korea. The analyses are done against the references at the ends of articles in the Journal of the Korea Institute of Military Science and Technology published during the period 1998-2012. The sample includes 4,563 references from 537 articles. The analyses focused on types of materials, such as monographs, continuous materials, reports, etc., cited by the researchers by year. Lastly, the study aims to suggest the preferences of cited materials. The results of the analyses might provide a guide for a research library to establish an effective acquisition policy and a basis for tangible proof to secure continuous financial support from administration.

• Korean Journal of Human Ecology
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• v.22 no.4
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• pp.651-665
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• 2013

The purpose of this research was to investigate preference and clothing images for T-shirts utilizing Hyojemunja Textile Pattern. The results of this study showed that the secondary students who participate in the study had low interest in Folk-painting and that the female students were more willing to buy T-shirts utilizing The Hyojemunja Textile Pattern than the others. Secondary students preferred letters-pattern to other ones of T-shirts and they opted for the patterns with black curve scripts and the patterns located in upper parts of T-shirts. However, the participants considered straight scripts more sophisticated, unique and feminine than curve scripts and therefore, this awareness helped them become more interested in Hyojemunja Textile Pattern. The findings of the study may suggest T-shirts utilizing Hyojemunja Textile Pattern can give those who have a low interest in Folk-painting increased chances to learn Folk-painting in secondary education.