Social metadata and Web 2.0

Agricultural University of AthensAgricultural University of Athens

Co-funded by the European Union,through the Comenius Programme

Social Metadata and Web 2.0 ToolsSocial Metadata and Web 2.0 Tools(folskonomies & social tagging)(folskonomies & social tagging)


22//2121Social Metadata and Web 2.0 Tools

StructureStructure

• FolksonomiesFolksonomies• Tags / Tagging in the WebTags / Tagging in the Web• Taxonomies Vs FolksonomiesTaxonomies Vs Folksonomies• Web 2.0 toolsWeb 2.0 tools• Examples of useExamples of use



FolksonomiesFolksonomies

• Internet-based information retrieval Internet-based information retrieval methodology consisting of methodology consisting of collaboratively generated, open-ended collaboratively generated, open-ended labels that categorize content such as labels that categorize content such as Web pages, online photographs, and Web pages, online photographs, and Web links Web links

http://www.2020systems.com/internet-ad-glossary-e-q.html




• UUser generated taxonomy used to ser generated taxonomy used to categorize and retrieve Web pages and categorize and retrieve Web pages and other web content using open ended other web content using open ended labels called tagslabels called tags

• Most commonlyMost commonly Internet-based, but Internet-based, but their use may occur in other contexts as their use may occur in other contexts as wellwell

http://www.enterprisesocialsoftware.info/glossary




• FFolksonomic tagging is intended to make olksonomic tagging is intended to make a body of information increasingly easy to a body of information increasingly easy to search, discover, and navigate over timesearch, discover, and navigate over time

• The idealThe ideal folksonomy is accessible as a folksonomy is accessible as a shared vocabulary that is both originated by, shared vocabulary that is both originated by, and familiar to, its primary usersand familiar to, its primary users

http://www.enterprisesocialsoftware.info/glossary



Tagging…Tagging…Holland, garden

Cycling, house

Countryside, vacation



TagsTags

• TagTag is a non-hierarchical keyword or is a non-hierarchical keyword or term assigned to a piece of information term assigned to a piece of information – Internet bookmark, Internet bookmark, – Digital image, Digital image, – Computer fileComputer file– etcetc



Tags in generalTags in general

Army tags

Clothes’ tags

Luggage tags


Tagging in the WebTagging in the Web



TaggingTagging

• Assigning non-hierarchical keywords or Assigning non-hierarchical keywords or terms to pieces of informationterms to pieces of information



Web TagsWeb Tags



• Tags facilitate searching for this resourceTags facilitate searching for this resource• Chosen informally and personally by the creator or Chosen informally and personally by the creator or

viewerviewer





Kinds of FolksonomiesKinds of Folksonomies

http://www.personalinfocloud.com/2005/02/explaining_and_.html

Broad FolksonomiesBroad Folksonomies Narrow FolksonomiesNarrow Folksonomies

• MMany people any people tagtag the the same object and every same object and every person can tag the object person can tag the object with their own tags in their with their own tags in their own vocabularyown vocabulary

• DDone by one or a few one by one or a few people providing tags that people providing tags that the person uses to get the person uses to get back to that informationback to that information



EvolutionEvolution

No taggingNo tagging

Few users tagging one resourceFew users tagging one resourceAuthor generated tagsAuthor generated tags

Many tagging one resource Many tagging one resource (folksonomy)(folksonomy)

User generated tagsUser generated tags



Broad VS NarrowBroad VS Narrow

• Broad folksonomies generate a Broad folksonomies generate a vocabulary of tags provided by many vocabulary of tags provided by many usersusers

• Narrow folksonomies are limited to the Narrow folksonomies are limited to the tags provided by few userstags provided by few users

http://www.personalinfocloud.com/2005/02/explaining_and_.html



Taxonomies VS FolksonomiesTaxonomies VS Folksonomies

Unsystematic

Flexible

Random

User based

Professionally developed

Sophisticated

Carefully Engineered

Expert based



StrengthsStrengths

• Cheap and extendableCheap and extendable• Quick and responsive to user needsQuick and responsive to user needs• Community buildingCommunity building• FeedbackFeedback• Scalability, easy for everyone to useScalability, easy for everyone to use• Classification systems can emergeClassification systems can emerge• Added value metadataAdded value metadata

“Folksonomies: Community Metadata?”, Marieke Guy, UKOLN



WeaknessesWeaknesses

• AmbiguityAmbiguity• Only single words – no spaces allowed Only single words – no spaces allowed • No No homonym, synonyms homonym, synonyms or localisation or localisation

controlcontrol• Uncontrolled and chaoticUncontrolled and chaotic• ImpreciseImprecise• Many tags are single use, many compound Many tags are single use, many compound

wordswords• Worst in searching than controlled Worst in searching than controlled

vocabulariesvocabularies“Folksonomies: Community Metadata?”, Marieke Guy, UKOLN


Web 2.0Web 2.0

What does it mean?What does it mean?



Godfather: Tim O’ReillyGodfather: Tim O’Reilly

• According to Tim O’Reilly, According to Tim O’Reilly, Web 2.0Web 2.0 begins with a sudden emergence of a begins with a sudden emergence of a whole range of software tools, whole range of software tools, applications and platforms in the last applications and platforms in the last 4-5 years or so that is taking the WWW 4-5 years or so that is taking the WWW to a completely different directionto a completely different direction



In a nutshellIn a nutshell

• Web 2.0 means…Web 2.0 means…– SharingSharing– Tagging Tagging – BookmarksBookmarks– RatingRating– InteractingInteracting– SocializingSocializing– CollaboratingCollaborating



I am a student/pupilI am a student/pupil

• I can I can shareshare my sources for writing an my sources for writing an essay or paper with my friendsessay or paper with my friends

• I can I can collaboratecollaborate with other students with other students or pupils that deal with the same topicsor pupils that deal with the same topics

• I can I can bookmarkbookmark interesting resources interesting resources



www.kerpoof.comwww.kerpoof.com



Tag GalaxyTag Galaxy

• Browsing through a universe of tags, Browsing through a universe of tags, allows pupils to find resources to allows pupils to find resources to support their needssupport their needs

• http://www.taggalaxy.com/



Tag GalaxyTag Galaxy



I am a teacherI am a teacher

• I can use existing tools to open I can use existing tools to open discussions between my students to discussions between my students to encourage encourage interactioninteraction

• I can I can share share my notes with them and my notes with them and raterate their assignments their assignments

• I can I can interactinteract with other colleagues with other colleagues



YackPackYackPack


http://www.yackpack.comhttp://www.yackpack.com


FunctionalitiesFunctionalities

• Grade student work, giving feedbackGrade student work, giving feedback• Give assignments for oral practice in foreign Give assignments for oral practice in foreign

language learning language learning • Discuss topics as a class, as staff, as a district, Discuss topics as a class, as staff, as a district,

and with other educators and with other educators • Answer questions from studentsAnswer questions from students• Collaborate with other classroomsCollaborate with other classrooms



Wiki SpacesWiki Spaces

• Free and membership WikisFree and membership Wikis

• Teachers can set up a wiki on any Teachers can set up a wiki on any subject they want to teach to their subject they want to teach to their pupilspupils



EverNoteEverNote

• Evernote enables you to save your Evernote enables you to save your ideas ideas – Things you see, and things you like can be Things you see, and things you like can be

stored in a personal workspacestored in a personal workspace– Find them all on any computer or device Find them all on any computer or device

you useyou use– A teacher can collect material on any given A teacher can collect material on any given

subject and provide access to pupilssubject and provide access to pupils





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EvaluationEvaluation


Social Metadata and Web 2.0 Social Metadata and Web 2.0 ToolsTools

(folskonomies & social tagging)(folskonomies & social tagging)

Informatics LaboratoryInformatics LaboratoryAgricultural University of AthensAgricultural University of Athens

http://infolab-dev.aua.gr/

Education

Social metadata and Web 2.0