• The Journal of the Korea Contents Association
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• v.18 no.9
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• pp.231-239
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• 2018

This study will analyze the meaning and the characteristic of advertising system in Facebook, one of the leading social platforms. This study focuses on finding the trend of mobile advertisement and observing Facebook users behavior. During 30seconds, the researcher observed the behaviors of 50 male and female university students which they access and use their own Facebook individually. After the observation, the researcher did an in-depth analysis based on offline discussion with tested participants. As a result, it can be classified in positive causes and negative causes of the advertisement. There are 3 positive causes; native advertisement effect, acquaintance effect, and big data effect and they help people watch the advertisement positively. 1.5-3 times per second high speed scroll behavior (Finger effect) is the main negative cause and it help users escape from the advertisement easily. These positive and negative causes have an interactive synergy which reduces user stress and makes people enjoy ad more than other media. Finally, both of them cause making Facebook a better environment for the advertisement.

• Journal of Korea Multimedia Society
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• v.13 no.8
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• pp.1245-1255
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• 2010

In current Web 2.0 environment, one of the most core technology is social bookmarking which users put tags and bookmarks to their interesting Web pages. The main purpose of social bookmarking is an effective information service by use of retrieval, grouping and share based on user's bookmark information and tagging result of their interesting Web pages. But, current social bookmarking system uses the number of bookmarks and tag information separately in information retrieval, where the number of bookmarks stand for user's degree of interest on Web contents, information retrieval, and classification serve the purpose of tag information. Because of above reason, social bookmarking system does not utilize effectively the bookmark information and tagging result. This paper proposes a Web contents ranking algorithm combining bookmarks and tag information, based on preceding research on associative tag extraction by tag clustering. Moreover, we conduct a performance evaluation comparing with existing retrieval methodology for efficiency analysis of our proposed algorithm. As the result, social bookmarking system utilizing bookmark with tag, key point of our research, deduces a effective retrieval results compare with existing systems.

• Journal of Korean Library and Information Science Society
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• v.47 no.4
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• pp.385-409
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• 2016

This study is to examine the effect of book festivals on personal reading habituation and library revitalization. The survey of participants of book festivals is conducted. As a result, it appears that participation of book festivals has a impact on personal reading habituation and recognition of and using library. The followings are results of this survey: recognition of participants about book festivals has a impact on personal reading habituation and recognition of library and using library, but the effect(2.1~4.7%) is slight; Satisfaction of book fair(display and selling booths) has a impact on personal reading habituation(30.1%); Satisfaction of experience booths has a impact on recognition of library(22.4%) and using library(26.4%); Satisfaction of participating in book festivals also has a impact on participant's reading habituation(24.5%), recognition of library(20.1%) and using library(27.5%).

• The Journal of the Korea Contents Association
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• v.15 no.10
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• pp.92-104
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• 2015

Many publishing companies go to storytelling marketing through facebook in these days. Because storytelling marketing through facebook is thought for publishing company as useful marketing method in accordance with the increase of social media user. Thus, this study classified storytelling marketing type by episode, experience, anniversary, information and also analyzed the difference of cognitive reaction, emotional reaction and variables which effect to purchase intention according to each storytelling marketing type. As the results, anniversary type and information type got more positive reaction from responses rather than episode type and experience type with respect to likability, reliability, informativeness, engagement. Also engagement, likability, informativeness are revealed as major variables which effect to purchase intention of each storytelling type. Thus, storytelling marketing of publishing company through facebook need to focus on anniversary type and information type. And it is important to combine naturally the information regarding to book that publishing company want to sell with the fun, pleasure factors that story can give.

• Journal of Digital Contents Society
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• v.17 no.5
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• pp.375-381
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• 2016

Recently, a foreground-background segmentation using codebook model has been researched actively. The codebook is created one for each pixel in the image. The codewords are vector-quantized representative values of same positional training samples from the input image sequences. The training is necessary for a long time in the most of codebook-based algorithms. In this paper, the initial codebook model is generated simply using median operation with several image frames. The initial codebook is updated to adapt the dynamic changes of backgrounds based on the frequencies of codewords that matched to input pixel during the detection process. We implemented the proposed algorithm in the environment of visual c++ with opencv 3.0, and tested to some of the public video sequences from PETS2009. The test sequences contain the various scenarios including quasi-periodic motion images, loitering objects in the local area for a short time, etc. The experimental results show that the proposed algorithm has good performance compared to the GMM algorithm and standard codebook algorithm.

• Journal of the Economic Geographical Society of Korea
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• v.10 no.2
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• pp.182-196
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• 2007

EU has pursued of the economic growth and the promotion of jobs by a free movement of workers. The free labour mobility brings a sustainable economic development through the creating jobs and the acquisition of a new knowledge and technology, but it also produces the geographical unequality of the movement of workers. And the enlargement of the EU redistributes geographically the flow of labour mobility. The flow of labour movement within EU changes to the structure of mobility that moves from the North to the North instead of the movement from the South to the North as an economic development in the South and an economic transformation to the service and hightech industry in the North. The mobility of unskilled workers has diminished, but the mobility of expert workers has increased. The flow of labour movement within EU has a structure hierarchic that the experts labour move from the North to the North, and the unskilled labour move from the South to the North and from the northern Africa to the South of Europe.

• Journal of the Institute of Electronics and Information Engineers
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• v.53 no.3
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• pp.21-28
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• 2016

We propose an adaptive scheme of a differential codebook for temporally correlated channels. And the codeword entries of the propose codebook are selected among the set of M-PSK constellations - the values of M proposed in this paper are 8, 16, or 32. Firstly, we analyze mathematically how the optimal spherical cap radius of the proposed codebook is tracked. Then, we explain the practical implementation of the proposed adaptive method. Practically, some candidate differential codebooks we propose in this paper can be switched according to the temporal correlation coefficients of wireless channels in the proposed scheme. Monte-Carlo simulations demonstrate that the achievable throughput performance employing the proposed codebook is always superior to those of the differential codebooks employing M-PSK constellations and non-adaptive differential codebooks with the same amount of feedback information.

• The Journal of the Korea Contents Association
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• v.21 no.5
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• pp.118-128
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• 2021

As interest in the audiobook market is growing, this study examined the influence of audiobook usage on purchase intention. An online survey was conducted in December 2020 targeting those in their 20s to 40s with experience using audiobooks. PLS-SEM was employed and the results are as follows. First, information, relaxation, and convenience motivation of audiobooks had a positive impact on user satisfaction. Second, while innovativeness of users had a positive impact on satisfaction, multitasking did not significantly affect satisfaction. Third, satisfaction had a positive impact on continued use and purchase intention. Finally, the continued use intention positively affected the purchase intention. This study is significant as an early study on the use of audiobooks. It is also meaningful in that it explored the process of evolving books in accordance with changes in technology and market demand.

• The Korean Publising Journal, Monthly
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• s.367
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• pp.55-55
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• 2006

• 한국상하수도협회지
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• s.11
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• pp.34-39
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• 2005