• 한국정보통신학회논문지
• /
• 제10권9호
• /
• pp.1590-1595
• /
• 2006

본 논문에서는 검색된 수많은 결과 중에서 특정 사용자의 선호도를 고려 한 최적의 문서만을 제공하기 위하여 사용자 프로파일을 이용한 문서 순위 결정기법을 제안한다. 사용자 프로파일을 구축하여 사용자의 선호도를 표현하고 검색결과 문서들을 대상으로 잠재적 구조를 분석 한 다음, 사용자 프로파일과 분석 결과로 표현된 문서들과의 유사성을 비교한다. 그리고 적합성 정도에 따라 사용자에게 최적의 문서를 제공하는 데에 목적이 있다.

• 한국경영과학회지
• /
• 제23권3호
• /
• pp.27-36
• /
• 1998

This work has improved the method of Kim and Gal's (6) in that of requiring less response of the DM(decision maker) and ease of reply. The underlying notion is the MCDC(maximally changeable dominance cone) for describing all efficient solutions under the particular preference structure. According to the DM's partial preference expression, enlarging the MCDC is achieved, which results in reducing the solutions needed to take into consideration. The cone generators corresponding to the DM's response are added to the MCDC, which results the MCDC is enlarged. Adopting the scheme of pairwise comparison as a means of acquiring preference attitude, an improved interactive method is proposed. And also, a scheme of choosing a reference point is suggested to achieve the computational efficiency.

• 아동학회지
• /
• 제30권5호
• /
• pp.73-85
• /
• 2009

The purpose of this research was to compare mathematically gifted students with non-gifted students in perception of learning environments, learning ability beliefs, and preference for problem-solving and task. Thirty-seven mathematically gifted students and 75 general students in middle school completed questionnaires about perceptions about mathematics. Data were analyzed by ${\chi}^2$ test and t-test. Compared with general students, mathematically gifted students estimated their talents for mathematics higher, studied mathematics more, expended more time and effort to solving difficult problems, put learning mathematics itself as their primary purpose for studying mathematics and regarded inappropriate environments as the major obstacle to mathematics study. Mathematically gifted students perceived their parents' support higher, solved problem creatively, and had higher preference for challenging tasks.

• 한국실내디자인학회논문집
• /
• 제29호
• /
• pp.163-172
• /
• 2001

An office is understood as a system consisted of three subsystem : office work, technology and organization. In the age of information, an office is a complicated device in an organization to create, process, modify and deliver various information for organizational goals. The purpose of this study is to provide design guidelines on office workstations based on the analysis of employees' preference and work-style responding to current changes of an organization and work process. Through a literature survey, the study briefly reviewed characteristics of interior design to find changing factors and directions of office interior. Work characteristics in an office are analyzed based on information, activity and communication characteristics while office environment is analyzed based on physical and technological factors. Finally, questionnaire items are derived from a critical comparison between work characteristics and workstation organization(furniture etc) factor. workplace strategies by preference are suggested to increase office productivity, employee satisfaction and to reduce space costs.

• 한국조경학회지
• /
• 제23권2호
• /
• pp.104-112
• /
• 1995

The purpose of this study was to investigate cross-cultural comparison of landscape preferences among Korean, Japanese and Western groups, and to get some clues to be used in judging this cultural influence. Moreover this study suggested fundamental data for design theory of modern landscape architecture. The results were as follows ; Natural factors including vegetation, water and rock, structural factors and spatial factors could be significant variables on Korean traditional landscape. The mean preference scores for both landscape element and landscape space were significantly different(p(0.01, p(0.05) with the Korean most perferred, the Western in the middle, and Japanese least. There were both differences and similarities in landscape preference among Korean, Japanese and Western groups.

• 대한영양사협회학술지
• /
• 제11권1호
• /
• pp.11-20
• /
• 2005

This study was conducted to investigate preference for convenience food and dietary attitude in college students in Seoul and Kyunggi-do area. This study used a questionnaires as instrument tool. Thequestionnaire consisted of socio-demographic characteristics of the subjects, the valuation of preference for convenience, the concern of nutrition, and the dietary attitude. The subject were 199 males and 137 females. The mean age of subjects was 22.4$\pm$2.3year. The results have been summarized as follows Male students preferred more convenience food than females. Male students liked chicken, ice cream, ramyeon, pizza·hamburgerandfemalestudentslikedchicken,pizza, ice cream, ramyeon·hamburger. The kinds of convenience foods for a substitute meal were ramyeon, hamburger, bread, potato in male group and female group had frequently ramyeon, hamburger, bread, rice cake for a substitute meal. Male students were more likely to eat ramyeon (p<0.01) and purchased sabalmyeon The subjects used to purchase sabalmyeon as main convenience food at convenient store The score of preference for convenience food in male group was higher than female group. The score of attitude toward balanced diet in female group was higher than male group(p<0.01). In scores of concern for nutrition information, balanced diet, and nutrition knowledge, Female group had higher scores of concern for nutrition information, balanced diet, and nutrition knowledge than that of male group (p<0.01).There was no significant difference in the degree of preference for packing types, however, Male group tended to prefer more micro wave type than female group. The persons to affect the consumption of convenience food were friends. There was no significant difference in the time of purchase convenience food, however, Male tended to purchase convenience food at the time of snack than female group. As a results, proper nutritional education and qualitative development of convenience food are required in order to improve the consuming attitude of consumers and their preference for convenience food.

• 대한지역사회영양학회지
• /
• 제27권1호
• /
• pp.27-35
• /
• 2022

Objectives: The purposes of this study were to compare the degree of sodium reduction practice and estimate sodium intake by salty food preference. Methods: Sodium reduction practices, salty food preferences and estimated sodium intake were surveyed for restaurant owners (n = 80), employees (n = 82) and customers (n = 727) at the restaurants participating in the sodium reduction project in Daegu, Korea. Estimated sodium intake was performed by examining sex, age, body mass index (BMI), salty eating habit and dietary behaviors. Results: The degree of sodium reduction practice was significantly higher in salinity meter use (P < 0.001), low salt seasonings (P < 0.001) and efforts to make the foods as bland as possible overall (P < 0.001) in the restaurants participating in sodium reduction project than in homes (P < 0.001). The degree of sodium reduction practice appeared lower in the high salty food preference group than in the low-preference group in such items as efforts to make the foods as bland as possible overall (P < 0.05) and washing the salty taste and then cooking (P < 0.05). The high-preference group showed high-salt dietary behavior, including eating all the soup until nothing was left (P < 0.05) more than the low-preference group, but low-salt dietary behavior included checking the sodium content in processed foods (P < 0 .0 5) less than the low-preference group. The high-preference group was higher in the soup and stew intake frequency than the low-preference group (P < 0.05) and much lower in nuts (P < 0.05) and fruits (P < 0.05) intake frequency. The high-preference group had a higher salty eating habit (P < 0.05), salty taste assessment (P < 0.05) and estimated sodium intake (P < 0.05) than the low-preference group. Conclusions: The present study showed that the salty food preference was strongly associated with lower sodium reduction practice and higher estimated sodium intake.

• 대한교통학회지
• /
• 제13권4호
• /
• pp.31-45
• /
• 1995

In recent year, especially in the mode choice analysis, it has been perceived that the importance of individual performance data using stated preference(SP) experiments as well as revealed preference data . Since SP experiments present respondent with various hypothetical alternatives, which are produced by a combination of a number of different attribute levels, and ask them to indicate a preference, it is possible to analyze travel behavior under a situation of potential environment change such as proposed alternative mode of transportation. The basic problems, however, remains that SP are not consistent with the actual travel behaviors and the research reports for stability of mode choice model using SP data has not been sufficient. Under this background, this study is to examine the characteristics of mode choice model using the SP data by the following items. $\circled1$ Analysis of factors affecting the mode choice behavior by the variance analysis of orthogonal-arrays-table $\circled2$ The reliability of SP data by transfer intention data $\circled3$ The stability of SP responses obtained from repetitive question by the comparison of model coefficient specified by each repetitive data. $\circled4$ The stability of ranking data in mode choice model For the analysis, we assumed subway operations in the Gwang-Ju , and set up a choice-set of hypothetical options based on Experimental Design Method.

• 컴퓨터교육학회논문지
• /
• 제7권5호
• /
• pp.1-8
• /
• 2004

본 연구에서는 학습자의 시각적 학습 선호도에 따른 정화상을 이용한 CAI와 애니메이션을 이용한 CAI의 효과를 학습자의 개념 이해도, 개념 응용력, 학습 동기의 측면에서 비교하였다. 서울시에 소재한 중학교에서 1학년 59명을 대상으로 분자의 운동에 대하여 4차시 동안 수업을 진행하였다. 이원 공변량 분석 결과, 학습자의 시각적 학습 선호도와 관계없이 애니메이션을 이용한 CAI 집단이 정화상을 이용한 CAI 집단 보다 개념 검사 점수가 유의미하게 높았다. 그러나 개념 응용력 검사와 학습 동기 검사 결과는 두 집단 간에 차이가 없었다.

• International Journal of Contents
• /
• 제11권2호
• /
• pp.20-30
• /
• 2015

We propose a new method that specifies objective image quality factors by evaluating an image quality measurement model using random images. In other words, No-Reference variables are used to evaluate the quality of an original image without using any reference for comparison. 1000 portrait images were collected from a web gallery with votes constituting over 30 recommendation values. The bottom-up data collecting process was used to calculate the following image quality factors: total range, average, standard deviation, normalized distribution, z-score, preference percentage. A final grade is awarded out of 100 points, and this method ranks and grades the final estimated image quality preference in terms of total image quality factors. The results of the proposed image quality evaluation model consist of the specific dynamic range, skin tone R, G, B, L, A, B, and RSC contrast. We can present the total for the expected preference points as the average of the objective image qualities. Our proposed image quality evaluation model can measure the preferences for an actual image using a statistical analysis. The results indicate that this is a practical image quality measurement model that can extract a subject's preferred image quality.