• Title/Summary/Keyword: Web surfing

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Lightweight Packet Authentication for Access Control in IEEE 802.11 (IEEE 802.11에서의 접근 제어를 위한 Lightweight 패킷 인증)

  • Lee, Keun-Soon;Kim, Hyo-Jin;Song, Joo-Seok
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.15 no.4
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    • pp.29-38
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    • 2005
  • Because IEEE 802.11 has several security vulnerabilities, IEEE 802.11i was proposed and accepted. But IEEE 802.11i has much overhead for most of users for the web surfing. Besides not only node the authentication but also the packet authentication is needed to communicate. Although IEEE 802.11i uses TKIP(Temporal Key integrity Protocol) and CCMP(CTR with CBC-MAC Protocol), they have a lot of overheads. In this paper, Lightweight Packet Authentication(LIPA) is proposed. LIPA has less overhead and short delay so that it can be affordable for simple web-surfing which does not need stronger security. After comparing performances of LIPA with those of TKIP and CCMP, LIPA is more efficient than other schemes for transmitting packets.

A Hybrid Platform Technology for Personalization Service based on Contents of Open Software (공개 소프트웨어 콘텐츠의 기반한 개인화 서비스를 위한 하이브리드 플랫폼 기술)

  • Hong, Yo-Hoon;Park, Sungkon
    • Journal of Digital Contents Society
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    • v.15 no.4
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    • pp.465-471
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    • 2014
  • This paper, describes software hybrid platform that display a individual service environment, a standard concomitant web-browsing with interface form by WYSIWYG method webpage specific location as webpage addition without professional programming skill. That provides a controlled individual service working environment, personal platform of low cost/high efficiency the exiting internet webpage without modification. so these skill provide software or contents surfing web site that browsing web site and a distribution environment. this paper proposes a individual hybrid platform of compositional ecosystem that enrich a exiting web site.

Design and Implementation of Differentiated Web Courseware for ICT Education in Elementary Schools (초등학교 ICT 소양교육을 위한 수준별 웹 코스웨어의 설계 및 구현)

  • Lee, Miw-Ha;Moon, Sung-Won
    • Journal of The Korean Association of Information Education
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    • v.10 no.3
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    • pp.425-434
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    • 2006
  • This study designed and implemented differentiated web courseware for ICT education based on the analysis of the contents of the guidelines for information and communications technology education in elementary schools. The web courseware was designed to provide students with self-directed, differentiated learning in ICT education. The contents of the courseware consist of 'understanding of the computer,' 'mouse and keyboard,' and 'surfing on the Internet.' Each of the contents includes diagnostic and formative evaluations so that students can select their own learning activities of the beginning, intermediate, and advanced levels. The web courseware is expected to be used as self-directed learning materials for ICT education through learner-centered differentiated learning activities.

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Voice Command Web Browser Using Variable Vocabulary Word Recognizer (가변어휘 단어 인식기를 사용한 음성 명령 웹 브라우저)

  • 이항섭
    • The Journal of the Acoustical Society of Korea
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    • v.18 no.2
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    • pp.48-52
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    • 1999
  • In this paper, we describe a Voice Command Web Browser using a variable vocabulary word recognizer that can do Internet surfing with Korean speech recognition on the Web. The feature of this browser is that it can handle the links and menus of the web browser by speech. Therefore, we can use speech interface together with mouse for web browsing. To recognize the recognition candidates dynamically changing according to Web pages, we use the variable vocabulary word recognizer. The recognizer was trained using POW (Phonetically Optimized Words) 3,848 words. So that it can recognize new words which did not exist in training data. The preliminary test results showed that the performance of speaker-independent and vocabulary-independent recognition is 93.8% for 32 Korean words. The Voice Command Web Browser was developed on windows 95/NT using Netscape Navigator and reflected usability test results in order to offer easy interface to users unfamiliar with speech interface. In on-line experiment of speaker-independent and environment-independent situation, Voice Command Web Browser showed recognition accuracy of 90%.

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FastIO: High Speed Launching of Smart TV Apps (FastIO: 스마트 TV 앱의 고속 구동 기법)

  • Lee, Cheolhee;Hwang, Taeho;Won, Youjip;Lee, Seongjin
    • Journal of KIISE
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    • v.43 no.7
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    • pp.725-735
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    • 2016
  • Smart TV uses Webkit as a web browser engine to provide contents such as web surfing, VOD watching, and games. Webkit uses web resources, such as HTML, CSS, JavaScript, and images, in order to run applications. At the start of an application, Webkit loads resources to the memory and creates DOM tree and render tree, which is a time consuming process. However, DOM tree and render tree created by the smart TV application do not change over time because the smart TV application uses web resources stored in a disk. If DOM tree and render tree can be stored and reused, it is possible to reduce loading time of an application. In this paper, we propose FastIO technique that selectively adds persistency to dynamically allocated memory. FastIO reduces overall application loading time by eliminating the process of loading resources from storage, parsing the HTML documents, and creating DOM tree and render tree. Comparison of the application resource loading times indicates that the web browser with FastIO is 7.9x, 44.8x, and 2.9x faster than the legacy web browser in an SSD, Ramdisk, and eMMC environment, respectively.

An Automated Topic Specific Web Crawler Calculating Degree of Relevance (연관도를 계산하는 자동화된 주제 기반 웹 수집기)

  • Seo Hae-Sung;Choi Young-Soo;Choi Kyung-Hee;Jung Gi-Hyun;Noh Sang-Uk
    • Journal of Internet Computing and Services
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    • v.7 no.3
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    • pp.155-167
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    • 2006
  • It is desirable if users surfing on the Internet could find Web pages related to their interests as closely as possible. Toward this ends, this paper presents a topic specific Web crawler computing the degree of relevance. collecting a cluster of pages given a specific topic, and refining the preliminary set of related web pages using term frequency/document frequency, entropy, and compiled rules. In the experiments, we tested our topic specific crawler in terms of the accuracy of its classification, crawling efficiency, and crawling consistency. First, the classification accuracy using the set of rules compiled by CN2 was the best, among those of C4.5 and back propagation learning algorithms. Second, we measured the classification efficiency to determine the best threshold value affecting the degree of relevance. In the third experiment, the consistency of our topic specific crawler was measured in terms of the number of the resulting URLs overlapped with different starting URLs. The experimental results imply that our topic specific crawler was fairly consistent, regardless of the starting URLs randomly chosen.

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A Web-based Synchronous Distance Learning System Supporting the Collaborative Browsing (공동 브라우징을 지원하는 웹 기반의 동기적 원격 학습 시스템)

  • 이성제;신근재;김엄준;김문석;성미영
    • Journal of Korea Multimedia Society
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    • v.4 no.5
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    • pp.430-438
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    • 2001
  • In this paper, we present the design and implementation of a web-based distance learning system supporting the collaborative browsing. Our system consists of an education affair management system, a video conferencing server/client, a white-board server/client, a session manager and a web browser sharing system. Among other things, our collaborative web browser is unique and not found in any other system. The web browser shows synchronously the same web pages as the lecturer moves through them. Therefore, it allows the student to feel real-time surfing gust as the lecturer would. The session manager supports multi-user and multi-group, and integrates various synchronous collaborative component into one distance learning system by providing the same session data and information of users in a session group. Our collaborative browsing system can increase the efficiency of distance learning and provides the effect of learning in the same classroom by supporting various synchronous functionalities, such as collaborative browsing.

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Design and Implementation of a Web-based Courseware for Learning Local Community through the Internet (지역과 사회 탐구 학습을 위한 웹 기반 코스웨어 구현)

  • Song, Su-Yeon;Lee, Ki-Jun;Lin, Chi-Ho
    • The Journal of Information Technology
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    • v.5 no.2
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    • pp.1-9
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    • 2002
  • This papers is a study on design and implementation of a web-based courseware for learning Yungwol local community through the internet which is one of the self leading learning methods. Learners can learn Yungwol local community by using the web-based courseware and on the basis of this learning methods, learners can use them according to their wish at anytime and anyplace. The learner-centered teaching model can be offered by sharing, exchanging, and interacting the information each other. To achieve such purpose, two learning grounds are applied. One is the research learning ground which students can study for themselves in the course of searching for the changing cause which can affect to local community and culture. And the other is the experimental ground where is the changing cause searched from research learning ground. Social and physical environment of the lot of community can realized by surfing the network and e-mails producing web-based file through internet. If these web-based research community is more developed and used under the local area network school, self-leading research learning methods will be done regardless of the place and the time.

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Effect of Various Instruction Media on Students′ Satisfaction of Food Purchasing Class (수업매체 활용이 학생들의 식품구매학 강의 만족도에 미치는 영향)

  • 윤지영;홍완수
    • Korean Journal of Community Nutrition
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    • v.9 no.3
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    • pp.326-332
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    • 2004
  • The research objective was to identify the effect of various instruction media on improving students' foodservice management competencies and for increasing class satisfaction. The research involved a comparison of two student groups. One group consisted of students who attended a lecture-based food purchasing class (Group A). The other group was students who attended the same class, and who also used various media as well as receiving the lecture (Group B). The results were as follows: 1) After a 16 week program, Group B perceived their procurement management competencies to be higher than those of Group A, especially in setting up purchasing goals, marketing research, and using computer systems for procurement; 2) In terms of class satisfaction, it was also observed that Group B was more satisfied with food purchasing class than was Group A. Group B gave high scores, especially in effective utilization of media, increasing motivation, and understanding; 3) Group B perceived that various instruction media was helpful for developing their procurement management competencies. Respondents evaluated the usefulness of media in the following order: using Power Point watching videos, visiting web-sites for food purchasing class, and surfing the World Wide Web. The results of the research show that using various instruction media for food purchasing classes would improve students' foodservice management competencies. Therefore, instructors who teach foodservice management related courses should consider developing teaching strategies that apply various instruction media for students to enhance their foodservice management competencies and to increase class satisfaction.

Analysis of Icon Design Used in Web as a Mark (표지로서 웹에 활용하는 아이콘 디자인 분석)

  • 김경조;신수길
    • Archives of design research
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    • v.16 no.3
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    • pp.143-150
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    • 2003
  • An icon which is used in website as a role of a mark is an important device, what is called, to find the contents The users get satisfied with their internet surfing when visualization of icon has exactly the right content. Therefore, visualization of contents - performing more fast and more convenient functions in searching a right content which a user want - becomes much more important. In this study, we researched the expressive ways of con indicating the common contents in the website, we divided into a visible and an invisible content, analysed the cases in symbolic situation and finally suggested the most appropriate method of visualization in each type.

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