• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.9 no.5
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• pp.45-51
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• 2009

In this paper, we propose a multiplex channel shopping mall services using IPTV. The main idea and features are as follows. First, we suggest bi-directional conversation channel instead of conventional unidirectional channel. Currently shopping mall broadcast services are one sidedly provided by commercial company. In these kinds of methods, efficient communication of information between commercial company and users is difficult problem. In this paper, we can solve this problem by using IPTV technology. Second, we can create new profit model by using combination of both the advantages of internet shopping mall and the advantages of cable TV shopping mall.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.14 no.4
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• pp.39-44
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• 2014

IMS(IP Multi-Media Subsystem) base on the IP service platform which can offer multimedia as the voice, audio, video, and data is service platform. In 3G mobile communication in the early day, IMS had a suggestion for supporting to multimedia service in the 3GPP. But now It is broadly substituting in the IPTV, wire phone company and it is substituted in internet platform base on the soft-switch in currently. Especially nowadays, 4G LTE in a mobile communication company is rapidly growing in market. Therefore, in this study, we had designed to the main prosser that can admit to 1,000 user over and SIP gateway which can link the IMS 코어 that can link SIP Device which adopt the standard protocol on the SIP.

• Journal of Internet Computing and Services
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• v.3 no.6
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• pp.63-77
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• 2002

Recently, roost of the companies have, utilized internet with the purpose of business. According to this tendency, each company is exchanging various information and offering services of e-business through Web-Site. Contents on Web-Site are getting huge and the period of contents renewal is getting short. Consequently, each company is faced with many problems for the contents management because of specialization and fractionation of contents. A contents management system that creates, maintains and manages efficiently and conveniently contents on Web-Site toward solving these problems is very required. in this paper, we design and implement such a web contents management system. It also supports dynamic web page publication based on the XML components.

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.131.1-131
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• 2001

At the present time, multimedia chip, internet application, and network equipment is designed by using ARM core. Because it has a good debugging, software compiler and needed low power. We must process a data coding to send a multimedia data by real time. So need to connect software and hardware algorithm. In this research, We design interface for ARM9/AMBA based board using VHDL for these function implementation. The board is used the ARM company´s ARM940T for software function implementation and Xilinx company´s Virtex E2000 for hardware function algorithm. The various hardware algorithm (ME,ME,DCT) block for performance can be implemented on this system.

• International Commerce and Information Review
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• v.3 no.2
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• pp.261-280
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• 2001

From the IMF(International Monetary fund) crisis, the management conditions of the trading company which run business in world market, has rapidly changed. In particular, the trading conglomerate's competitive power have declined. This study, addressing such changes, intend to analyze what factors are that have generated this changes in trading conglomerate's environment. The study specifically takes it into account that the differences between Korea trading company and Japan's. This research was confirmed by data and field survey in two country. The results of research are summarized as follow. The Korean trading company are inferior to the Japanese trading company in total volume(Korea: 24.1, Japan 100), the benefit volume(Korea: 8.7, Japan 100), the stability of turnover(Korea: 36.6, Japan 100), the network power in foreign country(Korea: 19.2, Japan 100), the power of e-business(Korea: 17.0, Japan 100). But the debt ratio of Korea company is significantly lower than that of Japan's(Korea: 160.4%, Japan 940.5%). In conclusion, providing that the Korean trading company want to be a world-class champion in trading field, they have to introduce the new management strategies which means the high-profit base trading, the long term investment and the internet business.

• Journal of Intelligence and Information Systems
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• v.21 no.4
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• pp.37-51
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• 2015

Due to the development of internet technology and the rapid increase of internet data, various studies are actively conducted on how to use and analyze internet data for various purposes. In particular, in recent years, a number of studies have been performed on the applications of text mining techniques in order to overcome the limitations of the current application of structured data. Especially, there are various studies on sentimental analysis to score opinions based on the distribution of polarity such as positivity or negativity of vocabularies or sentences of the texts in documents. As a part of such studies, this study tries to predict ups and downs of stock prices of companies by performing sentimental analysis on news contexts of the particular companies in the Internet. A variety of news on companies is produced online by different economic agents, and it is diffused quickly and accessed easily in the Internet. So, based on inefficient market hypothesis, we can expect that news information of an individual company can be used to predict the fluctuations of stock prices of the company if we apply proper data analysis techniques. However, as the areas of corporate management activity are different, an analysis considering characteristics of each company is required in the analysis of text data based on machine-learning. In addition, since the news including positive or negative information on certain companies have various impacts on other companies or industry fields, an analysis for the prediction of the stock price of each company is necessary. Therefore, this study attempted to predict changes in the stock prices of the individual companies that applied a sentimental analysis of the online news data. Accordingly, this study chose top company in KOSPI 200 as the subjects of the analysis, and collected and analyzed online news data by each company produced for two years on a representative domestic search portal service, Naver. In addition, considering the differences in the meanings of vocabularies for each of the certain economic subjects, it aims to improve performance by building up a lexicon for each individual company and applying that to an analysis. As a result of the analysis, the accuracy of the prediction by each company are different, and the prediction accurate rate turned out to be 56% on average. Comparing the accuracy of the prediction of stock prices on industry sectors, 'energy/chemical', 'consumer goods for living' and 'consumer discretionary' showed a relatively higher accuracy of the prediction of stock prices than other industries, while it was found that the sectors such as 'information technology' and 'shipbuilding/transportation' industry had lower accuracy of prediction. The number of the representative companies in each industry collected was five each, so it is somewhat difficult to generalize, but it could be confirmed that there was a difference in the accuracy of the prediction of stock prices depending on industry sectors. In addition, at the individual company level, the companies such as 'Kangwon Land', 'KT & G' and 'SK Innovation' showed a relatively higher prediction accuracy as compared to other companies, while it showed that the companies such as 'Young Poong', 'LG', 'Samsung Life Insurance', and 'Doosan' had a low prediction accuracy of less than 50%. In this paper, we performed an analysis of the share price performance relative to the prediction of individual companies through the vocabulary of pre-built company to take advantage of the online news information. In this paper, we aim to improve performance of the stock prices prediction, applying online news information, through the stock price prediction of individual companies. Based on this, in the future, it will be possible to find ways to increase the stock price prediction accuracy by complementing the problem of unnecessary words that are added to the sentiment dictionary.

• Journal of Applied Tourism Food and Beverage Management and Research
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• v.12 no.1
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• pp.57-78
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• 2001

The propose of this study is to explore Internet business models of tourism-related business and to research ]edging product agents focused on the company \"T\". The procedure for this study is as follows: 1) Study literature review about the Internet business models of tourism-related business 2) Characterize the lodging product agents 3) Analyze the Internet business model of the agent \"T\" based upon preview studies 4) Suggest the future study of this field.study of this field.

• Management & Information Systems Review
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• v.15
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• pp.37-50
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• 2004

Internet commerce has the potential to propel a company to 'break out' of existing strategic constraints and radically alter business processes, strengthen customer and supplier ties, and open up new markets. Therefore, many firms have rushed into internet commerce to conduct business more efficiently, create new business opportunities, and generate business value. The purpose of this study is to examine the relationship between the sales promotional functionality of internet shopping mall and its performance considering the characteristics of internet shopping mall's operational form as moderating variables. The results showed that the price functionality affects positive effects on the performance of shopping mall, and the characteristics of operational form can be considered as a significant moderating variables between the sales promotional functionality of shopping mall and the performance.

• Journal of Internet Computing and Services
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• v.22 no.6
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• pp.51-57
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• 2021

If a company's actions to save or avoid taxes are judged to be tax evasion rather than legal tax action by the tax authorities, the company will not only pay tax but also non-tax costs such as damage to corporate image and stock price decline due to a series of tax evasion-related news articles. Therefore, this study measures the frequency of occurrence of tax evasion controversial keywords in internet news portal as a factor to measure the severity of the case, and analyzes the effect of the frequency of occurrence on corporate value. In the Korean stock market, we crawl related articles from internet news portal by using keywords that are controversial for tax evasion targeting top companies based on market capitalization, and generate a time series of the frequency of occurrence of keywords about tax evasion by company and analyze the effect of frequency of appearance on book value versus market capitalization. Through panel regression and impulse response analysis, it is analyzed that the frequency of appearance has a negative effect on the market capitalization and the effect gradually decreases until 12 months. This study examines whether the tax evasion issue affects the corporate value of Korean companies and suggests that it is necessary to take these influences into account when entrepreneurs set up tax-planning schemes.

• Journal of Digital Contents Society
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• v.7 no.4
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• pp.263-269
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• 2006

The trend of the web is moving from portal-centered to user-centered, and RIA(rich internet application) is considered best solution for usability and functionality of the next generation web. But the lack of reference document or technical guide for RIA implementation is a big obstacle for extension of RIA environment to practical business engineer or user. In this paper, I will suggest the implementation conceptand reference site for user-centered environment based on RIA concept. The suggested concept support wire/wireless environment, and use the e-mail that is already used by many company or portal. The contents of this paper will be very helpful to the practical engineer or portal/company that want to use or implement about RIA environment.