• Journal of Korea Multimedia Society
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• v.17 no.11
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• pp.1286-1295
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• 2014

This paper suggests the way that it could improve the reliability about preference of user's feedback by adding weighting factor on sentiment analysis, and efficiently make a sentiment analysis of users' emotional perspective on the big data massively generated on twitter. To solve errors on earlier studies, this paper has improved recall and precision of sensibility determination by using sensibility dictionary subdivided sentiment polarity based on the level of sensibility and given impotance to sensibility determination by populating slang, new words, emoticons and idiomatic expressions not in the system dictionary. It has considered the context through conjunctive adverbs fixed in korean characteristics which are free to the word order. It also recognize sensibility words such as TF(Term Frequency), RT(Retweet), Follower which are weighting factors of preference and has increased reliability of preference analysis considering weight on 'a very emotional tweet', 'a recognised tweet from users' and 'a tweeter influencer'

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2012.10a
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• pp.364-369
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• 2012

The vehicle sound classified into driving sound due to power-train, operating sound due to electric motor like sunroof, door lock and electronic sound. These vehicle sound has various features depend on the characteristic of sound that user required. And it based on cultural and regional difference of user. In this study, the user required vehicle sound characteristics for luxury sedan was investigated in overall viewpoint. And virtual target sound was developed through the result of user preference investigation. Next, Jury test was carried out in Germany, USA and Korea for evaluating the target sound. And the regional and individual difference of preference was analyzed through the result of jury test. This result of research will be contributed to design of vehicle sound quality and target sound setting.

• Journal of the Korean Society of Food Culture
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• v.15 no.5
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• pp.423-434
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• 2000

The purpose of this study was to develop menu planning in the elementary food service system. This survey conducted in 10 elementary schools located in Inchon area. Among 300 questionnaires, 258 responses were collected and were analyzed by SAS program. Household income levels, food habits and preference of menu were investigated using frequency and percentiles with chi-square test. The result showed that mostly people belonged to lower middle income classes. As for preference of school food service menu, elementary students chose correction of unbalanced diet and good nutrition, while mothers of them ranked correction of unbalanced diet and convenience of preparing food. Regardness of mothers for menu preference of the elementary school students came to an agreement overall.

• Journal of the Korean Data and Information Science Society
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• v.14 no.2
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• pp.237-245
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• 2003

MDS(multi-dimensional scaling) for preference data is a graphical tool which usually figures out how consumers recognize, evaluate certain products. This article is mainly concerned with an optimal scaling for MDS when target configuration is available. Rotation of axis and SUR(seemingly unrelated regression) methods are employed to get a new configuration which is obtained as close to the target as we can. Methodologies developed here are also illustrated via a real data set.

• Journal of Intelligence and Information Systems
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• v.12 no.4
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• pp.1-14
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• 2006

This study proposed a customer preference estimation model for production recommendation and a method to enhance the performance of product recommendation using the estimated customer preference information. That is, we suggested customer preference estimation model to estimate exactly customer's product preference with his behavior. This model shows the relationship of customer's behaviors with his preferences. The proposed estimation model is optimized by learning the relative weights of customer's behavior variables to have an effect on his preference and enables to estimate exactly his preference. To validate our proposed models, we collected virtual book store data and then made a comparative analysis of our proposed models and a benchmark model in terms of performance results of collaborative filtering for product recommendation. The benchmark model means a prior preference weighting model. The results of our empirical analysis showed that our proposed model performed better results than the benchmark model.

• Journal of the Korean Institute of Landscape Architecture
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• v.24 no.2
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• pp.74-85
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• 1996

The objective of this study is to investigate the influence of viewing aspects based on formal aesthetics and psychophysica approaches of the MAISAN provincial park for landscape management. Two methods are applied in this study. First, according to the field study with map the quantitative analyses of the viewshed area, visual section and scenery types were achieved, herein the visual landscape characteristics is found. Second, based upon visual preference evaluation of the relationships between the viewing aspects and visual preference scores to landscape slides were measured by questionnaires. The main conclusions obtained by the research are as follows. Visual area of MAISAN has a quite wide viewshed though itself is surrounded. The preference for the visual terminal were change by its characteristics to the visual corridors, view points, viewing types and viewing distance. Especially, the regression analysis between visual preference and viewing distance indicated Y=-3.20X\sup 2\+18.64X+20.64. In this case, viewing distance 794m from O\sub p\ is more important point for visual experience. The viewing types B·C and famous view A obtained a high visual preference score. A visual terminus are viewed along an entire RouteA, so revealed by its evolving spatial containment as to exact the full potential of its changing perspectives. Also we conducted the degree of visual influence by the shade in visual area at MAISAN and clarified viewing vantage Route and point in LSH being necessary for landscape preservation.

• Journal of the Korean Home Economics Association
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• v.43 no.10 s.212
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• pp.69-79
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• 2005

The purpose of this study was to determine restaurant patrons' preference differences in interior design style of restaurants according to their lifestyles. Written questionnaires were handed out to 500 adults in Seoul and surroundings and the results were sampled by convenience sampling. The questionnaire was composed of respondents' general characteristics, lifestyles, and preference for 10 types of interior design style. A total of 415 questionnaires were usable for data analysis, resulting in a response rate of $83\%$. To analyze the collected data, frequency, factor, reliability, quick clustering K- means and One-Way ANOVA analysis were conducted using SPSS 10.0. The results showed that there were preference differences in 10 types of interior design style of restaurants according to lifestyle types which were categorized into 4 groups. The conservative and self-convinced group showed the lowest preference scores in the 10 types of interior design style which are Romantic, Ethnic, Classic, High-Tech, Elegant, Country, Modem, Minimal, Natural, and Casual style. The quality life pursuing group and extroverted individuality groups showed the high preference scores in most of the styles, especially in the Classic and Elegant styles. The realistic self-centered group showed the highest preference scores in Casual style among the 4 groups. These study findings indicate that restaurants should take into account their patrons' lifestyles as a mean of market segmentation, and respond to their taste and preference when they have established suitable servicescape.

• Journal of Korean Elementary Science Education
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• v.26 no.2
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• pp.216-225
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• 2007

The purpose of this study is to find out the differences (if any) and the causes of preferences for science between elementary school boys and girls. Another purpose of this study is to find out when such differences in preference begin and what their causes we. Fourth, fifth and sixth grades from elementary school A in Gyeongg-gi Province participated twice in research surveys on preference levels in science with education, career course and personal experience taken into account. A total of 997 survey responses, (excluding no responses or half-hearted ones) were selected for comparative analysis. The analysis methods used were frequency analysis, cross stabs and one-way ANOVA Analysis which depended on survey items. The results of this study show that preference levels in science are 61.7% and the difference of preference levels in science between boys and girls are 31.2% and 30.5% with boys showing higher percentages in science preference levels than girls(p<.01). Moreover, the results also show that the point in which changes in preference level in science emerges is from fifth and sixth grades. Therefore, the gender difference in preference levels in science begins with fifth grade students, with science being slightly more favored by boys. finally, the main causes in gender differences seems to be the experiment participants' levels, scientific education textbook preference level, interests in science class, and plans for the future that are related to field of science. Among these causes, interests level in science class and preference levels in science are closely related.

• Korean journal of food and cookery science
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• v.26 no.4
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• pp.434-440
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• 2010

This study was conducted among university students living in the Daegu-Gyeongbuk region to determine the perception, Preference, and improved consciousness of Gyeongbuk local foods classified by the Yugyo, Silla, Ocean, and Gaya cultures. In the Andong area, subjects demonstrated outstanding, high rates of perception of and preference for local foods. The perception of and preference for foods from the Yugyo and Silla cultures were relatively high compared to those of others. The degree of perception of Gwamegi foods was high, but the degree of preference was rather low. It is believed that establishing new counterplans is necessary to obtain higincrease preference for foods from the Ocean culture. Sigeumjang foods of the Ocean culture showed alow degree of both perception and preference. The analysis showed that there was a discrepancy between the perception of and preference for foods in the Gaya culture. To improve the relationship between awareness of and preference for foods in the same culture we determined that menu strategy, development strategy and sales strategy were important factors. The results of the survey investigating the correlation between improved awareness of and perception of foods showed menu strategy and development strategy had meaningful effects. According to the survey, the factors that influenced choices of foods local to Yugyo were classified into categores-: menu strategy, development strategy, product strategy, and sales strategy.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.41 no.2
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• pp.167-173
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• 2018

Each municipality is promoting signboard improvement projects, but the effectiveness is not great. The main reason for this is that when the signboard is manufactured the location of the shop is only dependent on the visual aspiration effect and it is not harmonized with the building by applying uniform design. The signboard are installed almost everywhere in the city, such as residential, natural and commercial environments. And the signboard provides various services such as traffic information and life safety to customers. Also, by applying design and functional elements, we can enhance the competitiveness of companies and improve the urban environment by enhancing the mutual connection effect of customers and space. The purpose of this study is to investigate the effect of design elements and functional elements of the signboard on customer preference. In other words, we conducted surveys and analyzes of 152 specialists and non-experts (customers, self-employed). As a result of the study, the following conclusions were drawn. First, the functions and design elements of signboards are important factors that have a positive effect on customer preference. Second, the function of the signboard has a positive(+) influence on the customer preference, and the information providing function and the corporate image side function directly affect the customer preference. Third, color elements have a positive(+) meaningful effect on customer preference. Especially, similar color sign affects customer preference positively. Fourth, the signboard design component has a positive(+) significant effect on customer preference. In particular, typefaces have a positive effect on customer preference.