• Management Science and Financial Engineering
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• v.11 no.3
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• pp.137-153
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• 2005

Collaborative filtering-based recommendation systems make personalized recommendations based on users' ratings on products. Recommender systems must collect sufficient rating information from users to provide relevant recommendations because less user rating information results in poorer performance of recommender systems. To learn about new users, recommendation systems must first present users with an initial item list. In this study, we designed and analyzed seven selection strategies including the popularity, favorite, clustering, genre, and entropy methods. We investigated how these strategies performed using MovieLens, a public dataset. While the favorite and popularity methods tended to produce the highest average score and greatest average number of ratings, respectively, a hybrid of both favorite and popularity methods or a hybrid of demographic, favorite, and popularity methods also performed within acceptable ranges for both rating scores and numbers of ratings.

• Journal of Nutrition and Health
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• v.43 no.5
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• pp.475-488
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• 2010

The daily caffeine intake from elementary school children's favorite foods was surveyed and evaluated. Children may respond to caffeine differently from adults because they have different physiological makeup and are functionally immature. Therefore, caffeine exposure may have more serious consequences for children than for adults, irrespective of sensitivity. Their preference, perception, and intake of caffeine from children's favorite foods were investigated by questionnaire for 355 children. The order of children's preference over foods containing caffeine was ice cream and ices, confectionary, milk and milk products, and soft beverage. The daily caffeine intake of children was estimated to range from 0.16 to 917.28 mg/day, with an average of $36.04\;{\pm}\;82.7$ mg/day and $36.9\;{\pm}\;96.0$ mg/day for boys and girls, respectively. The daily caffeine intake according to body weight was $1.08\;{\pm}\;2.23$ mg/kg and $1.12\;{\pm}\;2.66$ mg/kg for boys and girls, respectively. The percentage of acceptable daily intake (ADI) of caffeine was 43.4% for boys and 44.9% for girls. The sources of caffeine for boys and girls were soft beverage (18.3 mg and 16.1 mg), milk and milk products (8.9 mg and 8.5 mg), ice cream and ices (5.7 mg and 7.3 mg), chocolate (1.6 mg and 3.2 mg), and confectionery (1.6 mg and 1.8 mg).

• The Korean Journal of Food And Nutrition
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• v.9 no.2
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• pp.151-159
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• 1996

To develop a ginseng wine, the brewing conditions and sensory evalution of the wine were studied. The ginseng, ginseng marc and red ginseng marc can be made into wine by ethanol fermentation with Saccharomyces cerevisae. The results showed that the higher ginseng concentration was, the faster the brewing velocity became. The ginseng marc wine brewed with 10% ginseng marc and 25% sugar was a great favorite The results from the mixture of ginseng and ginseng marc revealed that the mute the content of ginseng was, the faster the velocity of brewing became. It took 27 days for a wine from 10% ginseng marc to be brewed Into 12% ethanol, 10% ginseng took 10days and red ginseng took 15 days. Among these, a wine from 10% ginseng was superior to others in flavor, color and taste. And the wine from 6.7% red ginseng was favorite. Contents of the favorite wine from ginseng marc were 80mg/ml of reducing sugar, 2.6 of acidity, 12% of ethanol, 28mg/ml of saponin, and it's pH was 3.5. Contents of the favorite wine from red ginseng marc were 58mg/ml of reducing sugar, 2.8 of acidity, 12% of ethanol, 44mg/ml of saponin, and it's pH was 2.8.

• Korean Journal of Adult Nursing
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• v.20 no.2
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• pp.321-330
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• 2008

Purpose: This study was intended to determine how the choice of music affects the physiological and psychological status of women college student during music therapy. Methods: A nonequivalent experimental group pretest-posttest design was used. 19 out of 54 subjects were assigned to listen to their favorite music and 17 to their unfavorite music for 20 minutes using MP3 players and headphones. Anxiety, blood pressure, pulse and blood glucose levels of the subjects were measured before treatment. The data was analyzed by Mann-Whitney and Wilcoxon signed rank test using the SPSS/WIN 10.0 program. Results: The result showed that systolic blood pressure, blood glucose and anxiety level decreased significantly in the favorite music group. however systolic blood pressure, pulse rate and anxiety level increased significantly in the unfavorite music group. The favorite music group showed a significantly higher level of satisfaction than the unfavorite music group. Conclusion: Choice of music affects the physiological and psychological status of an individual. Favorite music listening would enhance the effect of music therapy. Therefore, selection of music must be considered in light of the subject's preference and characteristics.

• Journal of Korean Clinical Nursing Research
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• v.23 no.1
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• pp.30-39
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• 2017

Purpose: The aim of this study was to evaluate the effects of favorite music therapy on the stress response of hysterectomy patients undergoing general anesthesia. Methods: Date were collected from June 29, 2015 to January 18, 2016 and the participants were 79 hysterectomy patients (experimental group 40 and control group 39). The experimental group listened to their favorite music through earphones from the moment they entered the surgical waiting room until they exited from the post anesthesia care unit. Results: There were statistically significant differences in anxiety (F=15.92, p<.001), systolic blood pressure (F=4.23, p=.008), diastolic blood pressure (F=3.07, p=.033), and heart rate (F=19.93, p<.001) between participants in the experimental group and the control group according to measurement times. Conclusion: The study results show that favorite music therapy considering patients' preferences is effective in reducing anxiety among patients undergoing a hysterectomy under general anesthesia, thus leading to a stable change in their blood pressure and heart rate.

• Journal of the Korean Society of Food Science and Nutrition
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• v.17 no.2
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• pp.95-102
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• 1988

This survey was performed to investigate the favorite foods of housewives lived in the metropolitan area and farm and fishing village, and to find the correlation of the results between those two areas. The most favorite staple foods of housewives in both areas were boiled rice, and iced noodle in noodles. The most favorite sidedishes were beef soup, pot stew with soybean paste, roasted ribs, beef, pickled wild seasame leaf, fried shrimp and pickled korean cabbage. The most favorite one in beverages was fruit punch, and in teas was coffee. Jangachies(pickled vegetables with spices) were in complete correlation, on the other hands buns, fruits, seasoned greens and broths were in the convese correlation between the metropolitan area and farm and fishing village. Teas, diet foods, meats, pan boilings, confections, noodles, somothered dishes, fried foods, boiled rices, Kimchies, rice cakes, hard-boiled foods in soy and beverages were in the general correlation between those two areas.

• Korean journal of communication and information
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• v.58
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• pp.154-177
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• 2012

Considering the growing importance of TV favorite channel setting function due to the rapid increase of number of TV channels, this study tried to find factors which affect the attitude toward and intention to use the favorite channel setting function. As related theories, this study used theory of diffusion of innovation, channel repertoire, channel changing behaviors, and social influences and suggested research hypotheses and questions based on the theories. After collecting data through online survey of 192 general audience, this study empirically analyzed the data by using multiple regression analysis. The result showed that innate innovativeness, relative advantage and social critical mass affected attitude toward using the favorite channel setting function and that compatibility, visibility, social critical mass influenced intention to use the function.

• Journal of the Korea Fashion and Costume Design Association
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• v.12 no.4
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• pp.15-28
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• 2010

This study was intended to present basic materials for the direction of product planning and marketing strategy to increase the market share of men's underwear. For this purpose, it attempted to classify the groups according to the benefit of pursuing men's underwear and analyze the differences in purchase behavior among the segmented groups. The specific purposes of the study were to investigate the purchase behavior of men's underwear, to segment the consumers into groups according to underwear benefits sought, to investigate the differences in purchase behavior among the groups, and to investigate the differences in demographics among the groups. The questionnaire was distributed to men aged the 20s to the 40s living in Seoul. A total of 297 questionnaires were used for the final analysis. As a result, the following findings were obtained. It was found that 84.8% of the respondents showed there was no favorite underwear brand. They showed the favorite color of translucent color, the favorite style of trunk and brief, the favorite post-processing of silver nano, deo processing, and the favorite material of charcoal. In purchasing men's underwear, the respondents showed a preference for simple image, and the discount store as the place of purchase. The results also showed that there were four groups of underwear benefits sought: sex appeal/individuality, comfort, practicality, and fashion/brand groups. In regard to the group differences, there were significant differences in underwear purchase motives, underwear preferences, store selection criteria, and demographics.

• Korean journal of food and cookery science
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• v.30 no.5
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• pp.650-662
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• 2014

This study was conducted to identify middle school students' caffeine intake from their favorite foods containing caffeine as well as several factors related to their intake. The objects of the investigation were 369 middle school students in the urban area of Changwon-si and 358 middle school students in the rural area of Haman-gun. The average height was 162.3cm, average weight was 52.3 kg and average BMI was 19.8. The food habit score was generally positive at an average of 3.37. The food habit scores of rural area students were higher than those of urban area students (p<.05). The average stress score was somewhat low at 2.82. The stress index for rural students was lower than that of urban students (p<.01). The recognition of caffeine in favorite foods was 8.12 out of a 12 point scale. The average nutritional knowledge score regarding caffeine was very low at 3.08 out of a 10 point scale. The main reason for selecting favorite foods was 'taste'. The percentage of students who don't check food labels was 49.1%. 'House' was the main location while 'good taste' was the biggest reason for eating caffeine-containing foods. The main side effect of caffeine intake was 'nausea'. The average daily caffeine intake for all subjects was 26.96 mg, with the urban students averaging 27.90 mg and the rural students averaging 25.99 mg. The correlations between several factors and caffeine intake were examined. Food habit showed a negative correlation with stress score and caffeine intake. Nutritional knowledge and recognition of caffeine had positive correlations with caffeine intake. Hence nutritional education about caffeine should be emphasized to improve students' healthy food habits.

• Convergence Security Journal
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• v.14 no.5
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• pp.9-15
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• 2014

Although the increase in number of the programs provides rich entertainment to viewers, it also has caused a negative of making it hard for viewers to find out their favorite programs. To address the problem, several researches have been performed mainly focusing on the technologies to analyze a viewer's TV watching-patterns and to recommend a program (or a channel) based on the analysis when a viewer changes channels. The researches, however, have the trouble of frequently failing to choose proper programs because, in the real-world broadcasting circumstance, the programs are re-broadcast over a number of the channels and a set of programs of a genre are usually playing in the overlapped times. To avoid the trouble, the data service, proposed in the paper, allows a viewer to book "explicitly" his/her favorite programs and provides a set of functions of listing up the booked program's broadcasting schedules and reserving viewing or recording the booked programs.