• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.14 no.2
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• pp.115-121
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• 2021

This paper used big data and artificial intelligence technology to predict the rapidly increasing internet traffic. There have been various studies on traffic prediction in the past, but they have not been able to reflect the increasing factors that induce huge Internet traffic such as smartphones and streaming in recent years. In addition, event-like factors such as the release of large-capacity popular games or the provision of new contents by OTT (Over the Top) operators are more difficult to predict in advance. Due to these characteristics, it was impossible for an ISP (Internet Service Provider) to reflect real-time service quality management or traffic forecasts in the network business environment with the existing method. Therefore, in this study, in order to solve this problem, an Internet traffic collection system was constructed that searches, discriminates and collects traffic data in real time, separate from the existing NMS. Through this, the flexibility and elasticity to automatically register the data of the collection target are secured, and real-time network quality monitoring is possible. In addition, a large amount of traffic data collected from the system was analyzed by machine learning (AI) to predict future traffic of OTT operators. Through this, more scientific and systematic prediction was possible, and in addition, it was possible to optimize the interworking between ISP operators and to secure the quality of large-scale OTT services.

• Korean Journal of Social Welfare Studies
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• v.47 no.3
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• pp.5-33
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• 2016

This study investigates the current features of social service provision system focusing on the core institutional traits of the system and community environment. Specifically, the study analyzes the differences in the contents and characteristics of social service provision, according to the community types, such as metropolitan area, medium size cities, and rural area. Also, the study explores the relationships among the three major subsystems in the social service provision system based on the types of financial provisions. Furthermore, the interaction effects between the community factors and financial traits on the relationships among sub- components in the service provision system are investigated. In this study other organizations, service users and public sector are regarded as three major sub-components in the provision system. The study utilizes the raw data from '2015 Social Service Demand and Provision Survey', which interviewed 4,100 social service organizations. Results from analyses show that the gap among metropolitan area, medium cites, and rural area is not so much bigger in the diverse provision features(e.g. the competition level, the major focus on the users, and policy demands on public sector) of provider-provision-organizations than in those of both of user-provision-organization and of market-way-organizations. User-provision organizations show the distinct differences in terms of the focus points on the users, while marketed organizations do in terms of the policy demands to the public sector. In rural area, user-provision organizations act like provider-provision-organizations whereas they do market-way-organizations in the urban area. Research findings show that the social service provision types utilizing market mechanism(such as user-provision, and market-way) are not so well fit into the characteristics of rural area.

• Journal of the Korean Society for information Management
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• v.34 no.1
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• pp.219-239
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• 2017

As IT technology develops rapidly and the personal dissemination of smart devices increases, video material is especially used as a medium of information transmission among audiovisual materials. Video as an information service content has become an indispensable element, and it has been used in various ways such as unidirectional delivery through TV, interactive service through the Internet, and audiovisual library borrowing. Especially, in the Internet environment, the information provider tries to reduce the effort and cost for the processing of the provided information in view of the video service through the smart device. In addition, users want to utilize only the desired parts because of the burden on excessive network usage, time and space constraints. Therefore, it is necessary to enhance the usability of the video by automatically classifying, summarizing, and indexing similar parts of the contents. In this paper, we propose a method of automatically segmenting the shots that make up videos by analyzing the contents and characteristics of language education videos and indexing the detailed contents information of the linguistic videos by combining visual features. The accuracy of the semantic based shot segmentation is high, and it can be effectively applied to the summary service of language education videos.

• Korean journal of communication and information
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• v.46
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• pp.485-510
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• 2009

Since the inception of Internet Protocol TV's real-time service on January, 2009, technological challenges and lack of content diversity of IPTV have been cited as problem areas. While past researches focused on IPTV's technological, industrial and policy facets, this research surveyed the viewers' viewing and usage patterns, and the level of service satisfaction among actual audiences of MegaTV, SKBroadband, and LGTV since January. The results show that subscription fee and content types were the two dominant determinants in audience's choice of a particular IPTV company. The high users of IPTV were on average aged between 30-39, and women tended to be heavier users than men. The surveyed audience also regarded IPTV to be more similar to the Internet than any other medium such as Cable TV and Satellite TV. IPTV audience cited 'lifestyle service' and 'additional service' offerings to be highly relevant to their usage and satisfaction; interactive service and educational service also showed high correlation to usage and satisfaction. The most watched contents on IPTV were domestic TV series, followed by foreign movies and variety shows. 'Fees for additional features,' 'lack of real-time terrestrial TV service', and 'lack of content variety' were the major areas of concern for IPTV viewers. They answered that the monthly fee was the most important factor in the selection of IPTV. Use of pay-per-view contents and add-on interactive service fees were also seen as problematic. With regards to future usage, the IPTV audience revealed that they were very sensitive and reluctant to pay for additional services. While existing researches concentrated on IPTV's technological problems and lack of content diversity, this study illuminated the more pragmatical side of the viewers, namely, the importance of price in audience's selection of an IPTV service provider. From these results, it is recommended that, before doing anything else, the service providers try to meet the audience's expected price points in order to garner the full potential of IPTV and the attendant mass audience.

• The KIPS Transactions:PartC
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• v.11C no.4
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• pp.545-554
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• 2004

WebDAV is a protocol to support collaboration among the workers in geographically distant locations through the Internet. WebDAV extends the web communication protocol HTTP/1.1 to provide a standard infrastructure for supporting asynchronous collaboration for various contents across the Internet. To provide the WebDAV functionality in legacy applications such as web-based collaborative systems or document management systems, those systems need to be implemented additionally to handle the WebDAV methods and headers information. In this paper, we developed an Apache-based WebDAV server, named DAVinci(WebDAV Is New Collaborative web-authoring Innovation)which supports the WebDAV specification. DAVinci was implemented as a form of service provider on a mod_dav Apache module. Mod_day, which is an Apache module, is an open source module to provide WebDAV capabilities in an Apache web server. We used a file system for storing resources and the PostgreSQL database for their properties. In addition, the system provides a consistency manager to guarantee that both resources and properties are maintained without inconsistency between resources and their properties.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.273-280
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• 2014

This study deals with the digital policy proposal through the study about the relation of the sustainable use and the addiction to social media such as facebook. Researcher tried to figure out the antecedents and consequence factors about the service addiction recognized by the social media users and to obtain the measures for the sustainable use of service and the implications for the prevention of addiction. Research results showed that 1) the individual innovation had an effect on the service satisfaction, the addiction, and the sustainable use, 2) the service satisfaction influenced on the addiction and the sustainable use, 3) the perceived service addiction had a reverse effect on the sustainable use. This is described that user's addiction recognition is the obstacle of sustainable growth in service. The proposed policy of this research is summarized as the following two. 1) When the users act the addictive using behavior, service provider has to pay attention to user's withdrawal from the service because of their addiction. 2) The government should offer healing facilities, service etc. for the addicted users and the prevention of the service addiction when they recognized their discomfort.

• Journal of Digital Convergence
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• v.10 no.1
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• pp.277-291
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• 2012

Smartphone (smartpad) and cloud computing has grown rapidly. So, the users started getting interested in multi-screen services. However, various OS / platforms due to the increased content development time and cost. Increase the cost of content development for a multi-screen service, it has been an obstacle. To solve this problem in this study, HTML5-based multi-screen service platform standards specification was established. HTML5 is a specification of the next generation of Web standards. Standards specification established by this study were research in terms of the service provider. And, this standards specification can be used independently of the service infrastructure and device. In addition, this standards specification in order to develop a multi-screen services are efficient and easy to use. For verification adequacy of standards specification established in this study, Scenarios technical entries were mapped by standard specification entries.

• Convergence Security Journal
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• v.13 no.5
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• pp.129-135
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• 2013

The revised security industry law revised 17 provisions among 31 provisions in order to root out the violent event. The main contents of the revised security industry law is the intensitfication of the required condition of permission, intensitfication of the obligation, management strengthening of the public resentment of group field, official, reason of expansion of the expenses instructor and guard, dress and equipment, vehicle, intensitfication of the managing director, intensitfication of the punishment, and etc. However, there is the problem including the putting under an obligation of the arrangement new appointment education, cause provider punishment of the service company violence, awareness of the police to the security company, excessive regulation, intensification of punishment problem, supervision power intensitfication of the revised security industry law is excessive the police, and etc. The individual responsibility education completion method and public resentment of group field in addition to is thought in order to solve this that exclusion of the prior education obligation, revision of the security industry law, burden on tax payers of the extra charge, punishment of the violence request contract trader, introduction of the guard qualification certificate system, and etc. are needed.

• Archives of design research
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• v.11 no.2
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• pp.242-248
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• 1998

Rapid increasing number of the internet web site enables the users receives information prepared with multimedia techniques as an exchanging gateway to the world. It is also realized that we are living in information society connected by the flooding number of the web sites. Consequently, setting up the identity in developing a homepage is critical since clear distinction from other sites is required for the homepage in which a random user can delivers the ideas from the message offered by the provider. In this paper, in order to establish the identity for a homepage, what kinds of components of the identity should be discussed and how the identity is reflected in the existing homepage are analyzed with the selected sample web sites. The design process in developing the identity for Ssamzie homepage (www ssarnzie eo.kr) is reviewed for comparing with others of the selected sites as a case study. These will explain that the roles of the designers in a homepage preparation will not be limited to the graphic expressions but will be expanded to the contribution to provide the reasonable distinction in terms of the establishing identity of the web sites. Moreover, the phase of the designer can be reevaluated by emphasizing the roles and the established identity.

• Journal of Korea Multimedia Society
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• v.9 no.7
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• pp.782-800
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• 2006

Image metadata is used to describe the contents, structures, and features of a given image data. There exist lots of image metadata-related standards. Such image metadata need to be shared to efficiently search the correct images in Web Service-enabled distributed environments. In this thesis, we propose an interoperable system architecture for utilizing image metadata and query extension methods using metadata mapping for correct and efficient image searching. In the proposed methods, the provider schema using non-standard image metadata are mapped into the schema based on the VRA standard, which is used as a basic and intermediary standard in MDR(MetaData Registry). We support mapping operations between the VRA standard and other standards, to reduce the number of unnecessary mapping operations and to enable easier addition of schema based on new standards. Using the proposed query processing methods, which utilize image metadata and overcome their heterogeneity by metadata mapping, it is possible to severely improve the correctness of image retrieval. To show the usefulness of our schemes, we implemented a prototype system and performed retrieval performance evaluation on extended query processing.