• Journal of KIISE:Databases
• /
• v.35 no.3
• /
• pp.272-285
• /
• 2008

In this paper, we concentrate on data allocation methods for multiple broadcast channels. When the server broadcasts data, the important issue is to let mobile clients access requested data rapidly. Previous works first sorted data by their access probabilities and allocate the sorted data to the multiple channels by partitioning them into multiple channels. However, they do not reflect the difference of access probabilities among data allocated in the same channel. This paper proposes ZGMD allocation method. ZGMD allocates data item on multiple channels so that the difference of access probability in the same channel is maximized. ZGMD allocates sorted data to each channels and applies Broadcast Disk in each channel. ZGMD requires a proper indexing scheme for the performance improvement. This is because in ZGMD method each channel got allocated both hot and cold data. As a result, the sequential search heuristic does not allow the mobile client to access hot data items quickly. The proposed index scheme is based on using dedicated index channels in order to search the data channel where the requested data is. We show that our method achieve the near-optimal performance in terms of the average access time and significantly outperforms the existing methods.

• Journal of Distribution Science
• /
• v.9 no.2
• /
• pp.31-36
• /
• 2011

I conducted empirical analyses of what happens when an offline channel expands to an online channel and whether the pre-existing offline channel's competitive assets (e.g. brand reputation and level of service satisfaction) can be linked to online channel preference. I found that an offline channel's brand reputation and level of service satisfaction can have a direct influence on offline channel preference and a second-hand influence on online channel preference. Thus, if the competitiveness of the online channel is strong enough and its customers have a higher preference for the offline channel, they will be committed and loyal to the company. The resultant enhanced competitiveness of the offline channel will present opportunities for both present and future success. The main results are the following. First, the management of the distribution channel service quality is more important than that of the brand reputation. Customers' experiences of service and subjective evaluations are not important only as the leading factors in the long-term brand reputation management but also as influential factors in channel preference. SoThus, given that the service quality of the pre-existing channel is not the customers' main concern, a strategy of improving the level of service satisfaction aimed at present customers is more valuable than a wide brand positioning strategy aimed at general and new customers. Second, when an offline channel company establishes an internet shopping mall on an online channel, it is highly likely that the preference and subjective evaluation of the present customers will influence the online channel. This applies not only to the special case of an expansion from an offline intermediary channel to an online one, but also to an online channel acting as an expansion of the business model of a conventional manufacturing or service company: both cases are vertical integrations of marketing channels in an expansion of the distribution channel. My theory applies to a wide range of contexts. Third and finally, any business strategy can grasp the meaning of 'channel expansion. Fundamentally, it is an expansion of the sales activity channel and marketing activity. However, it is also a way of enhancing marketing and sales competitiveness through an expansion to an online or offline channel. The expansion of an offline company to an online channel could be seen not as improvement but as an innovation of the business process by which two goals are achieved with one technique. The former is expected to increase the sales of the offline company, and the latter is also expected to increase sales while also contributing to cost reduction.

• Proceedings of the Korea Contents Association Conference
• /
• 2012.05a
• /
• pp.157-158
• /
• 2012

본 연구는 온라인 채널상에서 소비자의 구매의사결정이 어떠한 영향을 미치고 있는지 알아보기 위한 실증적인 연구조사이다. 온라인 채널의 가치를 담고 있는 채널자산에는 소비자의 이성적요인과 감성적요인이 영향을 미치고 있다. 이러한 요인들이 소비자의 브랜드 선호도와 브랜드이미지에 영향을 주어 궁극적으로 구매의도를 형성한다는 것을 규명하고자 하였다. 따라서 감성적인 요인이 온라인에 대한 애호도와 선호도에 유의적인 영향을 주는 것으로 밝혀졌고 온라인 이용자가 정보 수집을 추구하면서 단순히 정보탐색자체를 즐기기도 한다는 기존 연구결과를 재확인하였다. 또한 소비자의 감성적 요인이 브랜드 선호도와 이미지에 유의한 결과를 갖게 되어 인지-태도의 순도 가능하다는 것이 규명되었다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2015.05a
• /
• pp.423-425
• /
• 2015

최근 대형 마트 및 백화점에서는 옴니채널 형식의 유통전략이 급부상하고 있으나, 소상공인 및 전통시장은 고비용의 옴니채널 형식을 도입하기가 어렵다. 이를 해결하고자 소자본으로 구축 가능한 니즈 분석을 활용한 모바일 플랫폼이 고안되었으나, 단순히 사용자의 행동 및 후기를 활용한 니즈분석은 개인만의 선호도 분석으로서 타인의 선호도를 알 수 없다는 문제점이 있다. 본 논문에서는 앞서 언급한 내 외부 소셜 네트워크 서비스를 활용하여 타인의 상품 선호도 또한 분석하고 결합하여 보다 효과적으로 상품 선호도 분석을 하였으며 사용자 지정 선호도 분석을 지원한다.

• Journal of Broadcast Engineering
• /
• v.7 no.2
• /
• pp.153-167
• /
• 2002

With the advent of digital broadcasting, a large number of program channels become available at the user terminals such as set-top-box or PC. Channel navigation and searching become more difficult at TV terminal sides using a conventional device such as a TV remote controller. The MPEG-7 MDS (Multimedia Description Scheme) and TV Anytime set up a standard about how to describe user preferences for genre, channel, actor/actress, keyword, etc. of the TV programs, and how to describe usage history for user's program consumption behaviors and preferences. But they do not describe how to use them. In this paper, we describe an IPG (Intelligent Program Guider) system that provides TV program and channel information based on user preferences and suggest easy access to TV program that user wants. The IPG monitors user's behaviors of interacting to programs and automatically updates the user's preference changes according1y. The IPG utilizes user preferences description scheme specified in both MPEG-7 MDS and TV Anytime metadata specifications.

• Proceedings of the Korean Information Science Society Conference
• /
• 2005.07b
• /
• pp.730-732
• /
• 2005

디지털 방송이 본격적으로 시작되고 각 가정에 디지털 TV의 보급이 많이 이루어짐에 따라 사용자들이 시청할 수 있는 채널 및 프로그램의 수는 기존의 공중파 환경과 비교하여 폭발적으로 증가하였다. 채널의 수가 수백 개로 늘어나기 때문에 사용자가 자신이 원하는 프로그램을 찾기 위해서는 리모콘을 누르거나 방송 편성표를 검색하는 것과 같은 많은 시간과 노력을 필요하다. 따라서 이러한 문제점을 해결하기 위해서는 사용자의 프로파일과 선호도 정보를 분석하여 사용자의 취향에 적합한 프로그램을 추천해줄 수 있는 방법이 필요하다. 본 논문에서는 수백 개의 채널에서 방송되는 프로그램 및 사용자의 선호도 정보를 분석하여 사용자가 원하는 프로그램을 추천해주고 시청 히스토리를 분석하여 사용자 모델을 동적으로 갱신하는 기법을 제안한다.

• Cartoon and Animation Studies
• /
• s.13
• /
• pp.211-221
• /
• 2008

Animation programs are regarded as bad genre in the aspect of advertisement revenues due to relative low viewing ratios. But programming of animation can be considered positively in the aspect of channel loyalty and preference. This study is based on the assumption that if the scheduling of animation genres could bring out the improvement of channel image of broadcasting stations in the long term, the terrestrial broadcasters could reconsider the increase of animation programs. The research questions of this study are as follows: 1. What is the relationship between the programming ratio of animation genres and the concentration of viewing patterns? 2. How has the increase of animation programming influenced the channel image of broadcasters? 3. Why is it necessary to increase of reinforce the programming of animation genre in the new media platforms? The teenagers aged from 8 to 14 can generally make a decision which program they want to watch. Likewise, the adult viewers aged from 30 to 40 can make a selection which commodity they want to buy. The results of this study indicate that the adult viewers have showed the strong preference for the same broadcasting stations which they have been exposed to in their teenages. This result implies that in the new media environment, animation genre can lead the viewers' loyally and preference for the broadcasting channel for a long period.

• Journal of Broadcast Engineering
• /
• v.21 no.2
• /
• pp.210-218
• /
• 2016

In this study VOD usage patterns(VOD use and paid amount) of IPTV users were investigated reflecting the level of media use characteristics such as TV viewing time, star preference, and genre preference. Also the impact of media using characteristics and the evaluation of guide channel on the intention to use VOD was analyzed. The web survey was conducted against the respondents who have used VOD and guide channel. The results are as follows. Among the media usage characteristics, star preference has the impact on the VOD use, while genre preference has relation to the willingness to pay for VOD. Secondly, the intention to view the guide channel, entertainment of the channel, and the users' genre preference have significant impacts on the intention to use VOD. Therefore, it is necessary to raise the viewing rate of guide channel by providing the customized promotion strategy and diverse events based on the analysis of VOD usage.

• The Journal of Small Business Innovation
• /
• v.20 no.1
• /
• pp.35-46
• /
• 2017

The purpose of this study is to obtain the implications for establishing a marketing strategy for retailers by analyzing whether the consumer's preference for products (food) is influenced by on-line, off-line, and omni-channel preferences. The research model consisted of the effects of consumers' food selection characteristics on business preference and omni channel preference. The results of analysis based on 477 questionnaires are summarized as follows. First, food purchasing characteristics that utilize the seven characteristics of (1) freshness of food, (2) taste, (3) quality and safety, (4) tasting, (5) food function and information, (6) country of origin, and (7) brand loyalty, has various effects on types of business preference, omni-channel preference. The adopted hypotheses were selected in order of brand loyalty (5 times), freshness (3 times), tasting (3 times), and origin (1 time). The selective attributes on foods are: (1) what kind of brand, (2) how good the freshness is, (3) tasting. (4) The country of origin is to be compressed. Actually consumers seem to utilize only the core selective factors that are appropriate to the characteristics of the distribution channel rather than all of them in the shopping of the food, and there is three characteristics on Convenience Store and only one or two factors in the other types of business. Second, in the analysis of the omni-channel preference analysis, food selection characteristics has been shown to have a limited effect, which is attributed to the fact that the consumer has not yet understood the concept of omni channel. Third, the results of this study suggest that there is a need to reflect the selection characteristics of foods that have diverse influences by business type in the marketing strategies. Because consumers make reasonable consumption to use both on-line and off-line simultaneously, consumers who use Omni Channel focus on quality and safety of food, identify products through tasting, pursue brands that can trust anywhere. Customers who pursue rationality will have a high preference for using Omni Channel. Product choice characteristic has significant effect on omni-channel preference. For a few years, omni-channel strategy of retailers meets with a difficulty. This study make a first attempt to study omni-channel preference changing retailing paradigm.

• Proceedings of the Korea Database Society Conference
• /
• 2008.05a
• /
• pp.43-53
• /
• 2008

Various mobile Internet services have been commercialized these days and mobile banking service is considered one of the most potential business models. However, the market growth has been limited since the implementation environment is different from that of wired-internet business services. This study is investigating the effect of mobile channel preference, perceived usability, perceived value on sustained use of mobile banking service and discussed the direction of future research at the end.