• Journal of the Korea Institute of Information and Communication Engineering
• /
• v.18 no.1
• /
• pp.103-108
• /
• 2014

The flash memory which is exploited on hand-held devices such as smart phones is a non-volatile storage and has the benefit that it can store mass data at a small sized chip. To process queries on the mass data stored in the flash memory, the index scheme should be exploited. However, since the write operation of the flash memory is slower than the read operation and the overwrite is not supported, it is required to reevaluate the performance of the index and find out the drawbacks. In this paper, we evaluate the performance of a space division typed index scheme on the flash memory. To do this, we implement the fixed grid file and measure the average speeds of the query and update processing on a various condition and compare the value of the flash memory with that of the magnetic disk.

• The Research Journal of the Costume Culture
• /
• v.21 no.6
• /
• pp.877-890
• /
• 2013

This study was an experimental qualitative study on the characteristics of fashion brand's mobile SNS. The study was focused on mobile Facebook and identified the characteristics of fashion brand's mobile SNS. In-depth interviews were conducted with 10 people in the 20s, who have used fashion brand's mobile Facebook application and currently live in Seoul or Gyeonggi province. After analysis of the in-depth interview data, four characteristics of fashion brand's mobile SNS were identified as follows. First, it was possible to access fashion brand's mobile SNS at any time anywhere, if users needed brand-related information. In this study, this characteristic was named 'fashion accessibility'. Second, it was possible to access update-information using fashion brand's mobile SNS or get up-to-date information about the brand in real-time. In this study, this characteristic was named 'fashion recentness'. Third, it was possible to store or capture fashion brand-related images and texts. In this study, this characteristic was named 'ease of storage of fashion data'. Fourth, fashion brand's mobile SNS was useful in various ways to fashion consumers, so this characteristic was named 'fashion usefulness' in this study. The study extracted 10 sub-characteristics of the characteristics of fashion brand's mobile SNS based on the results of a qualitative study. This study has significant value which suggests directions for future research. Also, this paper is expected to provide managerial implications to fashion companies that need to develop mobile SNS marketing strategies.

• Journal of the Institute of Electronics Engineers of Korea SD
• /
• v.46 no.1
• /
• pp.68-75
• /
• 2009

As the recent performance of microprocessor is improving quickly, the necessity of cache is growing because of the increase of the access time of main memory. Every block of direct-mapped cache maps to one cache line. Although the mapping rule is simple, if different blocks map to one cache line, the miss ratio will be higher than the set-associative cache due to conflicts. In this paper, for the improvement of the direct-mapped cache of OpenRISC, 4-way set-associative cache is proposed. Four blocks of the main memory of the proposed cache map to one cache line so that the miss ratio is less than the direct-mapped cache. Pseudo-LRU Policy, which is one of the Line Replacement Policies, is used for decreasing the number of bits that store LRU value. The OpenRISC core including the 4-way set-associative cache was verified with FPGA emulation. As the result of performance measurement using test program, the performance of the OpenRISC core including the 4-way set-associative cache is higher than the previous one by 50% and the decrease of miss ratio is more than 15%.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.20 no.1
• /
• pp.183-197
• /
• 2018

This study examined outdoor sports wear purchase behaviors among middle-aged male consumers based on outdoor sports wear shopping orientation. Data research was conducted on 300 internet users in their 40s and 50s located all parts of the country. The SPSS 24.0 software program was used to conduct data analyses such as descriptive statistics, frequency analysis, factor analysis, cluster analysis, $x^2-test$, t-test, ANOVA, and Duncan test as a post-hoc analysis. The results of this study were as follows: Firstly, outdoor sports wear shopping orientation was identified with fivefactors : the tendencies of wanting to show off a brand name, conservative purchasing, economical purchasing setting a high value on a salesperson, and impulse purchasing. Secondly, the middle-aged male consumers were classified in to three groups by the cluster analysis: a rational group, an indifferent shopping group, and pursuit brand shopping group. Thirdly, the evaluation criteria of products were significantly different depending on outdoor sports wear shopping orientation subdivision in all factors. Fourthly, in the case of fashion information sources regarding outdoor sportswear, significant differences were found according to shopping orientation subdivision in mass media/store source, personal source/ prior shopping experience. Fifthly, all types of stores were significantly different depending on shopping orientation subdivision except for large discount stores.

• Fashion & Textile Research Journal
• /
• v.20 no.3
• /
• pp.304-311
• /
• 2018

This research used a questionnaire to provide basic data for the design of dressing form that enables the manufacture of senior menswear with an improved fit to match the dissatisfaction with the fit of male suits over the 50s. We used 132 questionnaires as analytical data. The results were: The item 'purchasing method of formal suits' showed that 95.5% purchased ready-to-wear jackets. The 'abdominal obesity type' and 'trunk waist type' had a high frequency of 'complaints about the size of the ready-to-wear jacket'. They choose their suits and wear them directly from the store. It is expected that senior males will complain about ready-to-wear formal suits due to the increase in girth item than normal type due to change of body shape since they consider size to also be important when purchasing suits. The most important part of the body when purchasing suits is the shoulder area, followed by the front width and back width of the fit. As for the degree of recognition of suit size, 38.1% said that they know the size and 'Suit size is hard to understand'. As a result of dissatisfaction with formal dressing, the items of 'Neck wide of get loose', 'Drag line of back neck', 'Not fit of front opening', 'Not fit of shoulder slope' and 'dissatisfaction'. Therefore, it is salient to establish suit fitting system and size system for senior men.

• Journal of Digital Contents Society
• /
• v.16 no.4
• /
• pp.545-553
• /
• 2015

While all of the data has a value in itself, most of the data that is collected in the real world is a random and unstructured. In order to extract useful information from the data, it is need to use the data transform and analysis algorithms. Data mining is used for this purpose. Today, there is not only need for a variety of data mining techniques to analyze the data but also need for a computational requirements and rapid analysis time for huge volume of data. The method commonly used to store huge volume of data is to use the hadoop. A method for analyzing data in hadoop is to use the MapReduce framework. In this paper, we developed a tournament-based MapReduce method for high efficiency in developing an algorithm on a single machine to the MapReduce framework. This proposed method can apply many analysis algorithms and we showed the usefulness of proposed tournament based method to apply frequently used data mining algorithms k-means and k-nearest neighbor classification.

• Korean Journal of Human Ecology
• /
• v.10 no.1
• /
• pp.113-126
• /
• 2001

The purpose of this study was to investigate clothing behavior and ornaments wear of university students. The subject of this study consists of 241 college students who were attended in Kongju National University. SPSSWIN Program was utilized to calculated frequency(N), mean value(M) and standard deviation(SD) for statistical analysis. Differences among the populations were examined through T-test, F-test, $x^2$-test. The results of this study were as follow : 1. Clothing behavior of university students had significant difference according to sex, grade. In general, female students showed higher score than did male students in clothing interest, clothing conformity, self-estimation about clothing, clothing dependence, clothing aesthetic, clothing modesty, A first-year students had high tendency in clothing interest. 2. The wear of ornaments had significant difference according to variables. Buying the ornaments, most of students sot information in show window and emphasized on design. Male students wanted to have the ornaments of shoes, watch, hat & necklet, but female students wanted to have the ornaments of shoes, earring, necklet & hairpin. 3. Clothing behavior has Influenced university students' ornaments wear. The university students who appeared to be interested in clothes were apparently influenced by peers when selecting ornaments. Ornaments were usually bought in the department store, while belts were among the most popular choices. Students who stressed color when purchasing ornaments showed a high level of interest in and dependence on clothes. On the basic of these results, we can conclude that university students' taste in clothing behavior and use of ornaments wear depend on several different factors. Therefore, it is possible to outline the shift in clothing attitudes during adolescence. In order to understand university students' behaviour concerning clothes, much guidance and various studies on the subject are much recommended.

• Korean Institute of Interior Design Journal
• /
• v.23 no.3
• /
• pp.193-203
• /
• 2014

In a rapidly changing market, the companies are applying a variety of elements for promoting sales for the inflow of consumers. For the elements of sales promotion, the tendency to apply the experiential marketing that provides a positive recognition centering on the customers, and in such tendency, the consumers places the values on the experience obtained from the spatial elements of sales promotion provided by the companies. As it is reflected on the life style of consumers, the drugstores applied with the experiential marketing as a mean of sales promotion is rapidly growing in the distribution market. In this study, the elements of sales promotion was picked out and 5 types of experience such as sense, feel, think, act, relate of Bernd H. Schmitt was investigated. The spatial composition of drugstores were classified into destination, assortment, convenience and occasion, and through self experienced visual research, the experiential marketing strategy applied to drugstores and the elements of sales promotion applied with experiential marketing was analyzed. The streets of Hongik University as a strategic point of beauty, by selecting four H&B stores which were recently opened, a future direction is proposed by conducting the case analysis on the elements of sales promotion of drugstores and the spatial composition of drugstores applied with experiential marketing. In conclusion, in overall space, the behavioral experiential elements are weak. The behavioral experiential elements are a marketing that induce the intuitive behavior added with expertise and considered difficult to be maintained. Although the consumers think that the biggest value of drugstores is 'free and convenient product test' but in the other hand, they tend to think most positively about the consulting of experts. Therefore, the space emphasized with expertise should be more highlighted but such space should consider the convenience of consumers.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.13 no.12
• /
• pp.6105-6110
• /
• 2012

Smart devices have made our daily life more intelligent and provided convenient life styles in which advanced interface and high speed LTE enable us to have proliferation of empirical Apps. This research has analyzed and evaluated Unstructured data from the users who experienced 'Hair Style Magic Mirror App' by focusing on emotional information. Further this study suggests some directions that the application development industry should take in the near future. The findings through Chi-Square analysis indicate that the application has not affected the overall satisfaction of the consumers; consumers received higher satisfaction in paid version of applications than free versions. Emotional Information analysis shows that users value the practicality of each application the most. Thus, the application developers should focus on practicality and sensitivity side corresponding to the demand of consumers.

• Journal of the Korean Society for information Management
• /
• v.26 no.2
• /
• pp.65-82
• /
• 2009

This exploratory study describes the social bookmarking perceptions and behaviors of students in university courses. Although an emerging discussion regarding the value of social bookmarking tools exists, how users adopt tools in practice is not well known. Students were asked to utilize the bookmarking tool del.icio.us to store information relating to course projects. They were also asked to comment how they employed del.icio.us for course projects. The study analyzed student perceptions and behaviors when using social bookmarking tools for university coursework. The study noted that the use of tags, notes, and networking within these social bookmarking tools remained less active and social bookmarking services in Web 2.0 as shared collaboration, shared communities, and vertical search were less present. Utilizing social bookmarking tools to facilitate personal information management includes the activities of information use, information re-use, and mobility.