• Journal of KIISE:Software and Applications
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• v.32 no.11
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• pp.1029-1035
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• 2005

Web streaming environment need a suitable video playback service technique, a streaming technique for real-time delivery and an efficient control technique due to its limited environment. In this paper, we propose an effective control technique for real-time media stream playback as a connection technique between the high-quality media player and web browser based on Linux environment. The proposed stream control technique presents control data through 050 on media playback screen of web browser, and process the user's input data. It acts GUI-independently, and is designed considering addition and extension for control data.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.12 no.8
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• pp.3804-3819
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• 2018

The increasing popularity of HTTP adaptive video streaming services has dramatically increased bandwidth requirements on operator networks, which attempt to shape their traffic through Deep Packet inspection (DPI). However, Google and certain content providers have started to encrypt their video services. As a result, operators often encounter difficulties in shaping their encrypted video traffic via DPI. This highlights the need for new traffic classification methods for encrypted HTTP adaptive video streaming to enable smart traffic shaping. These new methods will have to effectively estimate the quality representation layer and playout buffer. We present a new machine learning method and show for the first time that video quality representation classification for (YouTube) encrypted HTTP adaptive streaming is possible. The crawler codes and the datasets are provided in [43,44,51]. An extensive empirical evaluation shows that our method is able to independently classify every video segment into one of the quality representation layers with 97% accuracy if the browser is Safari with a Flash Player and 77% accuracy if the browser is Chrome, Explorer, Firefox or Safari with an HTML5 player.

• The Korean Journal of Emergency Medical Services
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• v.16 no.2
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• pp.43-51
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• 2012

Purpose : We try to disclose how much the keywords of the papers from the Korean Journal of Emergency Medical Services with Medical Subject Headings(MeSH) terminologies and to understand the major subjects of the recent emergency medical technology research in Korea from keywords. Methods : We analyzed keywords from 524 articles of the Korean Journal of Emergency Medical Services that were published between 2005 and 2011. We investigated frequently used keywords and what percentages of keywords agree with MeSH terms using the MeSH browser. Results : There were on average 3.2 keywords per article. The most frequent key words were AED, Attitude, Cardiopulmonary Resuscitation, CPR, EMT, EMT students, External Defibrillator, Job satisfaction, Knowledge, 119 EMT in order. The number of terms in precise agreement with MeSH headings was 101(19.3%); 327 terms(62.4%) were not found in the MeSH browser and 96 terms(18.3%) partially matched MeSH terms. Conclusion : Many keywords used in the Korean Journal of Emergency Medical Services did not agree with MeSH terms. We conclude that contribution rules should be using MeSH terms and authors should be educated in the proper use of MeSH terms in their research and subsequent publication.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.555-559
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• 2002

Internet users can input URL in Address window of browser or click address of site that is registered to Bookmark and sail the world of internet. But, need input of ID and password and mouse click action of 4-5 times to reach on target page that users want. This environment is very annoying work to users who approach specification page repeatedly every day. So, Homepage (first screen) of URL that want is not, Web Page Access Manager's development that can approach to target page that want by mouse click of short once. That may make web users can approach fast on target page, and minimise effort by web sailing.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.624-627
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• 2002

In this thesis, a method of solving the IP(Internet Protocol) address collision problem on the Web browser in the TCP/IP based on LAN(Local Area Network). These days a number of computers are increasing in geometrical progression, but general users who are not experts are lack of the knowledge about TCP/IP address, and they may use not only their own but also other users' TCP/IP addresses by mistake or intentionally. For the more they may use IP address which is the same as network equipments and then the situation will cause the whole network to be disturbed. As the result it may be happened that not only the original users' network but also the whole users' one do not operate properly in the LAN.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.916-919
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• 2002

In this thesis, a method of solving the IP(Internet Protocol) address collision problem on the Web browser in the TCP/IP based on LAN(Local Area Network).These days a number of computers are increasing in geometrical progression, but general users who are not experts are lack of the knowledge about TCP/IP address, and they may use not only their own but also other users' TCP/IP addresses by mistake or intentionally. For the more they may use IP address which is the same as network equipments and then the situation will cause the whole network to be disturbed. As the result it may be happened that not only the original users'network but also the whole users' one do not operate properly in the LAN.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.187-190
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• 2012

This paper proposes an one-time authentication system for web applications by making use of the quick-response code, which is widely used nowadays. The process is not time-consuming. It does not require any browser extensions or specific hardware to complete a task. The system uses QR code which is basically a two-dimensional black and white image encoding a piece of digital information. When a user logs into a site, the web server will generate a challenge encoded to form a QR code. The user captures a picture of QR code with a mobile camera which results in decoding the QR code. The challenge shall be sent back to the server; the web server then logs the PC browser in. The authentication using Challenge-Response is easy to understand and the process is fast. The system proposes the improvement of usability and security of online authentication.

• 월간산업보건
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• s.89
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• pp.36-38
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• 1995

인터넷은 한마디로 "정보의 바다"라고 할 수 있다. 다른 방향에서 본다면 인터넷이란 하나의 거대한 도서관이라고도 할 수 있다. 도서관에서는 각 정보를 색인화하여 쉽게 정보를 찾아 볼수 있게 되어 있고 새로운 정보가 나오면 추가로 색인을 재 정리하는 시스템으로 되어 있다. 인터넷도 도서관의 색인 시스템과 마ㅏㄴ가지로 전세계의 전산망 특히 산업보건과 관련된 기관에 접속하여 키보드로 산업보건정보를 찾을수 있게 되어 있다. 그렇다면 우리가 어떻게 전세계에 산재되어 있는 대형, 소형, IBM, 매킨토시 컴퓨터의 전산망에 접근하여 정보를 찾아 낼 수 있는가? 하고 의문을 갖는 사람들이 있을 것이다. 인터넷이 바로 그것을 가능하게 해준다. 그러면 어떻게 인터넷에 접근을 할 수 있는가? 많은 대학의 전산망, 교육망, 연구망을 통해 인터넷에 연결되어 있고 여러가지 상업서비스도 생겨나서 인터넷접속이 얼마든지 가능하다. 그러나 여기에는 또 한가지의 문제가 있다. 인터넷은 UNIX 운영시스템으로 구성되어 있기 때문에 약간의 UNIX언어를 알아야 인터넷 접근이 가능하다는 것이다. 이런한 문제 때문에 일반인들은 인터넷의 접근을 회피하게 된다. 그러나 이러한 단점은 World Wide Web(WWW)와 Web browser라는 프로그램이 나오면서 해결되었고 요즈음 일반적으로 많이 사용하고 있는browser는 Mosaic과 Netscape라는 프로그램이다. Netscape은 UNIX운영시스템이 탑재된 work station이나 대형컴퓨터에 보다 많이 이용되고 일반 개인용컴퓨터 사용자는 Mosaic 프로그램 버그(bug)가 적기 때문에 주로 사용하고 있다. Netscape도 사용법에 있어서는 Mosaic과 별 차이가 없다. 필자는 Netscape보다는 Mosaic을 주로 사용해 왔기 때문에 Mosaic을 이용하여 인터넷에 접근하는 방법과 필자가 접속해 본 미국의 산업보건관련 기관을 소개하고자 한다.

• Journal of Korean Institute of Industrial Engineers
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• v.29 no.3
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• pp.197-205
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• 2003

Many people get plenty of information from World Wide Web, and the study of the factors that affect on reading task on web browser is presenting important issue. But domestic studies on legibility of Korean on web environment were relatively poor and the study about suitable text layout for skimming wasn't carried out also. At this point, this study was performed to investigate the effects of two types of reading, three levels of line length, and three levels of interlinear spacing on comprehension and reading rate when subjects read the materials on web browser. Reading speed, error rate, subjective preference and SACL(Stress and Arousal Checklist) evaluation were measured to evaluate the effects. Eighteen volunteer subjects participated in eighteen web document sessions with two different reading types, three different line lengths, and three different interlinear spacings. Statistical results from objective and subjective evaluations indicate that 50 characters per line of line length and 100 percents of interlinear spacing improved reading rate, overall error rates were reduced when reading normally, and SACL measures were increased at fast reading type. Consequently, in order to design text layout to retrieve information in WWW environment effectively, just applying guidelines of traditional printed material is not proper. Therefore, it is effective to consider reading type, line length, and interlinear spacing. Implications of these results and suggestions for the further study are also addressed.

• Genomics & Informatics
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• v.3 no.3
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• pp.68-73
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• 2005

Pharmacogenomics research requires an intelligent integration of large-scale genomic and clinical data with public and private knowledge resources. We developed a web-based knowledge base for KPRN (Korea Pharmacogenomics Research Network, http://kprn.snubi. org/). Four major types of information is integrated; genetic variation, drug information, disease information, and literature annotation. Eighteen Korean pharmacogenomics research groups in collaboration have submitted 859 genotype data sets for 91 disease-related genes. Integrative analysis and visualization of the large collection of data supported by integrated biomedical path­ways and ontology resources are provided with a user-friendly interface and visualization engine empowered by Generic Genome Browser.