What's happening on the web


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  • The intent is to enhance the usability and usefulness of the Web and its interconnected resources through: documents "marked up" with semantic information (an extension of the HTML <meta> tags used in today's Web pages to supply information for Web search engines using web crawlers). This could be machine-readable information about the human-readable content of the document (such as the creator, title, description, etc., of the document) or it could be purely metadata representing a set of facts (such as resources and services elsewhere in the site). Common metadata vocabularies and maps between vocabularies that allow document creators to mark up their documents so that agents can use the information in the supplied metadata (so that Author in the sense of 'the Author of the page' won't be confused with Author in the sense of a book that is the subject of a book review).
  • What's happening on the web

    1. 1. CIAN Forum 28 February 2006 What’s happening on the web?
    2. 2. In today’s session… <ul><li>Semantic web – finding meaning on the web </li></ul><ul><li>Tagging – how we can all categorise the web </li></ul><ul><li>How the web is connecting people </li></ul><ul><li>Google – taking over everything? </li></ul>
    3. 3. The Semantic Web <ul><li>The Semantic Web is a project that intends to create a universal medium for information exchange by giving meaning (semantics), in a manner understandable by machines, to the content of documents on the Web. </li></ul>
    4. 4. The Semantic Web [2] <ul><ul><li>The Semantic Web is an extension of the current web in which information is given well-defined meaning , better enabling computers and people to work in cooperation. </li></ul></ul><ul><ul><ul><li>Tim Berners-Lee, James Hendler, Ora Lassila, The Semantic Web, Scientific American, May 2001 </li></ul></ul></ul><ul><ul><ul><li>www.w3.org/2001/sw </li></ul></ul></ul>
    5. 5. The Semantic Web [3] <ul><li>The Semantic Web aims to make web pages understandable by computers , so that they can search websites and perform actions in a standardized way. </li></ul>
    6. 6. The Semantic Web [4] <ul><li>If HTML and the Web made all the online documents look like one huge book , RDF, schema, and inference languages will make all the data in the world look like one huge database . </li></ul><ul><ul><li>Tim Berners-Lee, Weaving the Web, 1999 </li></ul></ul><ul><ul><li>www.semanticweb.org </li></ul></ul>
    7. 7. Resource Description Framework <ul><li>The Semantic Web is a collaborative effort led by W3C with participation from many partners. </li></ul><ul><li>It is based on the Resource Description Framework (RDF) . </li></ul>
    8. 8. Resource Description Framework [2] <ul><li>RDF is a simple data model for referring to objects (&quot;resources&quot;) and how they are related. An RDF-based model can be represented in XML syntax. </li></ul>
    9. 9. Resource Description Framework [3] <ul><li>Software has no common sense . </li></ul><ul><li>The purpose of RDF is to provide an encoding and interpretation mechanism so that resources can be described in a way that software can understand . </li></ul>
    10. 10. Resource Description Framework [4] <ul><li>en.wikipedia.org/wiki/Resource_Description_Framework </li></ul>
    11. 11. By the way… <ul><li>Wikipedia is a fantastic resource – anyone can contribute to it, even you! </li></ul><ul><ul><li>en.wikipedia.org </li></ul></ul><ul><li>(someone with a sense of humour and too much time has done this - </li></ul><ul><ul><li>uncyclopedia.org/wiki/AAAAAAAAA ) </li></ul></ul>
    12. 12. Tagging <ul><li>Tagging is the use of ad hoc , user-created metadata . A tag is a keyword or category label. Tags help you find things that have characteristics in common. </li></ul>
    13. 13. Tagging [2]
    14. 14. Tagging [3] <ul><li>It is developing into an important alternative to centrally organised information structures on the web. </li></ul><ul><ul><li>www.sifry.com/alerts/archives/000270.html </li></ul></ul>
    15. 15. Tagging [4] <ul><li>Also known as </li></ul><ul><li>Social classification </li></ul><ul><ul><li>Mobtagging </li></ul></ul><ul><li>Folksonomy </li></ul><ul><li>Free tagging </li></ul><ul><li>Mob indexing </li></ul>
    16. 16. Comments about tagging <ul><li>Searching for information, not sorting it, is the wave of the future [Steve Jobs, Apple] </li></ul><ul><li>The old way creates a tree, the new rakes leaves together [David Weinberger] </li></ul><ul><li>Folksonomies don’t support searching … as well as tags from controlled vocabularies applied by professionals [Lou Rosenfeld] </li></ul><ul><li>Building, maintaining and enforcing a controlled vocabulary is, relative to folksonomies, enormously expensive [Clay Shirky] </li></ul>
    17. 17. Tagging sites <ul><li>Tagging has become popular at sites like </li></ul><ul><li>Flickr - flickr.com /photos/tags </li></ul><ul><li>Technorati - www.technorati.com </li></ul><ul><li>Del.icio.us – del.icio.us </li></ul><ul><li>Furl – www.furl.net </li></ul>
    18. 18. Flickr <ul><li>flickr.com - an online photo management and sharing application that allows people to </li></ul><ul><li>share their photos </li></ul><ul><li>organise their photos </li></ul><ul><li>flickr.com /photos/tags </li></ul>
    19. 19. NLA & Flickr <ul><li>13 January 2006 – A new partnership between Yahoo! Australia & NZ and the National Library of Australia will create the country’s most comprehensive publicly accessible bank of digital images featuring contemporary photographs of urban and rural Australia . </li></ul><ul><li>www.nla.gov.au/pressrel/2006/flickr.html </li></ul>
    20. 20. Del.icio.us <ul><li>Social bookmarking - allows users to build up their bookmarks on the web and share them with others. </li></ul><ul><li>Del.icio.us displays </li></ul><ul><li>link to website/blog etc </li></ul><ul><li>links to everyone who has bookmarked it </li></ul><ul><li>del.icio.us /tag </li></ul>
    21. 21. Technorati <ul><li>Technorati is a real-time search engine that keeps track of what is going on in the world of weblogs . </li></ul><ul><ul><li>www.technorati.com /tags </li></ul></ul>
    22. 22. Furl <ul><li>A free service that saves items you find on the Web and enables you to find them again </li></ul><ul><ul><li>www.furl.net </li></ul></ul>
    23. 23. Podcasting <ul><li>A podcast is a web feed of audio or video files placed on the Internet for anyone to download or subscribe to. </li></ul><ul><li>Podcasting is about creating audio or video content for people to listen to when, where and how they want. </li></ul><ul><li>You can listen to a podcast on a computer or a portable mp3 player eg iPod </li></ul><ul><li>You can download a podcast or subscribe to a podcast service to automatically receive audio files of interest </li></ul>
    24. 24. Podcasting [2] <ul><li>www.podcast.net </li></ul><ul><li>www.podcastingnews.com/topics/Podcasting_FAQ.html </li></ul><ul><li>www.abc.net.au/rn/podcast/help.htm </li></ul><ul><li>www.abc.net.au/triplej/listen/podcast.htm </li></ul>
    25. 25. Podcasting [3] <ul><li>Podcasts can be information, entertainment, an audio blog …anything. </li></ul><ul><li>The latest pod sensation – faceless </li></ul><ul><ul><li>www.bamster.com </li></ul></ul>
    26. 26. Google <ul><li>Began as a research project in 1996 by 2 students at Stanford University. </li></ul><ul><li>A search engine that analyses the relationships between web sites and ranks search results by relevance, based on the notion that the number of references to sites, similar to academic citations, gives them added credibility. </li></ul>
    27. 27. Google [2] <ul><li>Google's mission is to organise the world's information and make it universally useful and accessible </li></ul><ul><li>Google Books – plans to digitise all the books in the world </li></ul><ul><li>Google Earth - combines satellite imagery , maps and Google Search </li></ul><ul><li>Google Froogle – online shopping – froogle.google.com </li></ul><ul><li>Gmail - Google's free webmail service integrating instant messaging - gmail.google.com </li></ul>
    28. 28. Recent Google issues <ul><li>In return for being allowed to operate in China , Google is now going filter the types of sites Chinese internet users can see. So when someone in China searches for “Tiananmen Square”, “Tibet”, “Democracy”, “Falun Gong” or “Taiwan”; they will only be seeing what the Chinese government wants them to see. </li></ul><ul><li>Great firewall of China - article on Open Democracy </li></ul>
    29. 29. Google Schmoogle <ul><li>Is Google making us making us lazy and stupid ? </li></ul><ul><li>‘ Google does no thinking at all, it’s a system.’ </li></ul><ul><li>www.abc.net.au/rn/talks/8.30/mediarpt/stories/s1571598.htm </li></ul>
    30. 30. Libraries Australia <ul><li>Libraries Australia , a service that enables anyone with an Internet connection to select from more than 40 million items held in over 800 libraries across the nation, was launched on Monday 27 February </li></ul><ul><li>librariesaustralia.nla.gov.au </li></ul>