Tag cloud

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## Contents

* 1 Definition
* 2 Methodes and application areas
* 3 Links
* 3.1 Tag/word cloud software
* 3.2 Examples of webservices with tag clouds
* 3.3 Examples of tag clouds from the world of education
* 4 References

## Definition[edit | edit source]

* "A tag cloud (or weighted list in visual design) can be used as a visual depiction of content tags used on a website. Often, more frequently used tags are depicted in a larger font or otherwise emphasized, while the displayed order is generally alphabetical. Thus both finding a tag by alphabet and by popularity is possible. Selecting a single tag within a tag cloud will generally lead to a collection of items that are associated with that tag"(Wikipedia, retrieved 13:13, 14 September 2006 (MEST))

Here is a practical explanation from Communicopia (retrieved 13:13, 14 September 2006 (MEST) and slightly shortened):

A tag cloud shows you all the tags we are using on this site. Tags are a new style of search data that describe what each page or story on the site is about. The tag cloud is therefore a visual map of the content on a site. Tags that are large and bold are written about a lot, tags that are smaller have only been written about a few times.

Tags are a new form of information design pioneered by the most successful online communities. They offer another way to navigate content on a site, showing patterns, the scope of content available, and how popular different keywords are.

Some sites allow you to tag content with your own words, helping you organize and remember content that is relevant to you. And by sharing your tags with others, an evolutionary "wisdom of crowds" map is created, helping you and others find valuable signals within all the noise.

Below is a tagcloud for this wiki, with maintenance categories filtered out

3D 3D printing 3d AMP ActionScript Code Snippets ActionScript programming projects ActionScript tutorials Actionscript 3 Adaptive learning Affect and motivation Affordances Affordances and constraints of learning technologies Analytics Annotation Art Artificial intelligence Artificial intelligence and education Assets Authoring tools BPMN Bibliography Blended Learning Blurp Books Browser extensions COAP-3000 COAP 2100 COAP 2100 Archive COAP 2170 COAP 3110 COAP 3120 COAP 3150 CS1 errors: dates CS6 icons CS6 pointers CSCW CSS Cartography Category name Certificate of Open Studies Citizen science Citizen science infrastructure Citizen science project Citizen science software Classroom technologies Cloud computing Cognitive tools Collaborative learning Community Community-oriented instructional design models Computational making Computer-mediated communication Computer games Computer literacy Computerized embroidery Content management Contents Courses and workshops Culture Cutting plotter Data mining and learning analytics tools Databases Demo Mons Design and research methods Design methodologies Digital learning in emergencies Digital libraries Digital storytelling Digital video Disambiguation Document standards Documentation E-book E-learning tools E-science E-textile Education and instruction Educational design tools Educational games Educational hardware Educational modeling languages Educational robotics Educational software Educational technologies Educational technology - the field Educational theories Edutech families Edutech institutions Edutechwiki documentation Embroidery format Emoji Ergonomics and human-computer interaction Esoteric templates Evaluation methods and grids Example cases Experiential learning and virtual worlds Fab lab Fabbster 3D printer Felix 3D printer Flash Flash, Flex and ActionScript Flash CS3 tutorials Flash tutorials Flex Flex tutorials Fonts Free online encyclopedias Free text GraphViz GraphViz dot HTML Hardware Help Help tools Hotfix stone design Hypertext ICT in society INRP Identity and authentication Imported vocabulary InkStitch Inkscape Innovation and change Installation tips Instructional design methods Instructional design models Instructional theories Integrated learning environments Interaction design, user experience and usability JavaScript Javascript Knowledge and idea management Knowledge representation LEGO Laser cutting Learner assessment and evaluation Learning approaches and technology trends Learning communities Learning design Learning management systems Learning objects Learning theories Links Literacy Literary programming Maintenance MakeCode Mathematics MediaWiki extension Mediawiki documentation Metacognition and learning strategies Microworlds Mobile computing Multimedia Music Networking technologies News items OWL Reasoner Open education Organization and management Overviews PHP Pages using ISBN magic links Pages using RFC magic links Pages using deprecated enclose attributes Pages using deprecated source tags Pages using duplicate arguments in template calls Pages with RSS feeds Pages with a map rendered by the Maps extension Pages with broken file links Pages with math errors Pages with reference errors Pages with script errors Pages with syntax highlighting errors Pedagogic strategies Pedagogical scenarios Peer-net Personal learning environments Physicalization Pictographic languages Portalware Position Papers Position paper Presentation software Privacy Program, course and teacher evaluation Programming Programming Environment Project-oriented instructional design models Project management and planning Property rights and copyright Psychological theories Psychology and learning Questionnaires RDFS Reasoner RapMan Real-time communication Reasoner Research methodologies Research methodology tutorials Rich internet applications Rubrics Rule Reasoner STL model SVG Screenshots Semantic Form demo Semantic Forms URL demo Semantic Mediawiki Server administration Simulation environments Social computing Socio-political and organization Software information Special contents Standards Stitch Era tutorials Subject areas Syllabus page Synonyms Taxonomies Teacher development Teacher tools Technologies Technology education Templates Testing Toronto school Triple Store Trust Turtlestitch Tutorials UML Uncategorized Under construction Virtual environments Virtual reality Visual programming language Visualization Web-based training Web authoring Web standards Web technologies Web technology tutorials Wikilog manual Wikimedia Wikis Workflow Writing X3D tutorials XML

See tagging (or folksomy) for a global discussion of tagging as opposed to use metadata taxonomies à la Dublin Core.

## Methodes and application areas[edit | edit source]

According to the Wikipedia article [1], there are to methods for producting a tag cloud:

1. The number of times that tag has been applied to a single item. Therefore, a tag becomes bigger when more people decide to apply it to a single item.
2. The number of items that have been given that tag. Therefore, more popular tags become bigger.

At the time of writing this, there is still a lot of discussion on how to optimize computing of tag clouds and visualization methods. See Hassan-Monteroa and Herrero-Solan (2006) for discussion and a proposal.

Tag clouds are popular in:

* the blogsphere
* in social bookmarking applications (links management)
* in content syndications that implement collaborative tagging
* ....

See social software

## Links[edit | edit source]

* Wikipedia: Tag cloud

### Tag/word cloud software[edit | edit source]

* 9 Word Cloud Generators That Aren’t Wordle, By Kate Smitty on August 29, 2013
* Semantic Result Formats allows to generate word clouds in MediaWikis.

### Examples of webservices with tag clouds[edit | edit source]

* del.icio.us \- cloud of users' most popular words tagging web pages
* Technorati \- most popular tags of blogs
* Flickr \- most popular tags of photos
* Furl
* Tag Clouds Gallery: Examples And Good Practices, Smashing Magazine, By Vitaly Friedman, November 7th, 2007.

Most of the better blog engines allow (optionally) to generate and display a tag cloud.

### Examples of tag clouds from the world of education[edit | edit source]

* EdTechTalk Blogs tag cloud
* Education futures tag clould
* Resource-Base - Standards, Architectures and Open Source in Education tag cloud

## References[edit | edit source]

* Brooks, C. H. and Montanez, N. 2006. Improved annotation of the blogosphere via autotagging and hierarchical clustering. In Proceedings of the 15th International Conference on World Wide Web (Edinburgh, Scotland, May 23 - 26, 2006). WWW '06. ACM Press, New York, NY, 625-632. DOI= http://doi.acm.org/10.1145/1135777.1135869. Abstract/HTML/PDF

* Hassan, Yusef and Monteroa Víctor Herrero-Solana (2006), Improving Tag-Clouds as Visual Information Retrieval Interfaces, International Conference on Multidisciplinary Information Sciences and Technologies, InSciT2006. Mérida, Spain. October 25-28, 2006. PDF Preprint

* Heymann, P., Garcia-Molina, H. (2007). Collaborative creation of communal hierarchical taxonomies in social tagging systems. InfoLab Technical Report, Computer Science Department, Stanford University Abstract/PDF/PS/Text

* Hsieh, W.T., Lai, W.S., Chou S.C.T.: A collaborative tagging system for learning resources sharing. In IV International Conference on Multimedia and Information and Communication Technologies in Education (m-ICTE2006), Seville, Spain (2006) 1364-1368