M icroblogging is a possibility for a specific community to exchange ideas, interests and information. http://www.flickr.com/photos/vividbreeze/480057824 Microblogging is a small-scale form of blogging, generally made up of short, succinct messages, used by both users and business to share news, post status updates and carry on conversations

http://www.twitter.com http://www.jaiku.com http://www.pownce.com ( down on December 15, 2008) http://www.flickr.com/photos/ericrice/1815164756/ http://www.plurk.com http://identi.ca/

http://www.twitter.com

http://www.flickr.com/photos/luc/1824234195 What the hell is twitter? - 140 character - from mobile, client or web interface - Followers - Direct messages - @Replies and Retweets - #Hashtags - Open API

http://www.slideshare.net/mweller/twitter-microblogging-and-living-in-the-stream-presentation?type=powerpoint

Question? How must a web-based application that can also be used offline (without Internet connection) for information retrieval and knowledge discovery based on a micro-content system like Twitter look like?

http://grabeeter.tugraz.at

http://grabeeter.tugraz.at/registration

http://grabeeter.tugraz.at/developers

Archive and Search offline

Grabeeter Architecture

Discussion All (more than 3200) Tweets accessible on Grabeeter (if user registers before) Change of writing style: tweets are written for once own not only for a broader public Easy deployment using JavaFX technology Twitter API restriction ( limit 3200 ) Twitter capacity problem ( API over capacity )

Micro-content (tweets) is achievable due to the fact that any tweet can be retrieved at anytime from a local hard-drive Micro-content is storable in a way that the user can distinguish between different events Micro-content is searchable along keywords, hash tags, time frames as well as different entities (URLs, @, ... ) Grabeeter allows ...

Future Work and Outlook Mobile client for Android, iPhone, … Improvements of search features Triplification of stored information Interlinking of triples with Linked Open Data

World of Data  Semantic Universe

SOCIAL LEARNING Computer and Information Services http:/ /tugraz .at http:/ / elearning . tugraz.at Grabeeter: Grab and Search your Tweets http://grabeeter.tugraz.at Slides available at: http://elearningblog.tugraz.at behi_at b.taraghi(at)tugraz .at