Group items tagged

Collaborative tagging describes the process by which many users add metadata in the form of keywords to shared content. Recently, collaborative tagging has grown in popularity on the web, on sites that allow users to tag bookmarks, photographs and other content. In this paper we analyze the structure of collaborative tagging systems as well as their dynamical aspects. Specifically, we discovered regularities in user activity, tag frequencies, kinds of tags used, bursts of popularity in bookmarking and a remarkable stability in the relative proportions of tags within a given url. We also present a dynamical model of collaborative tagging that predicts these stable patterns and relates them to imitation and shared knowledge.

article about collaborative tagging.

This paper explores the system of categories that is used to classify articles in Wikipedia. It is compared to collaborative tagging systems like del.icio.us and to hierarchical classification like the Dewey Decimal Classification (DDC). Specifics and commonalitiess of these systems of subject indexing are exposed. Analysis of structural and statistical properties (descriptors per record, records per descriptor, descriptor levels) shows that the category system of Wikimedia is a thesaurus that combines collaborative tagging and hierarchical subject indexing in a special way.

comparison of Dewey's system of categorization and Wikipedia's mixed model.

Yahoo! employee describes and defines criteria and algorithms for a collaborative tag system: Since tags are created by individual users in a free form, one important problem facing tagging is to identify most appropriate tags, while eliminating noise and spam. For this purpose, we define a set of general criteria for a good tagging system. These criteria include high coverage of multiple facets to ensure good recall, least effort to reduce the cost involved in browsing, and high popularity to ensure tag quality. We propose a collaborative tag suggestion algorithm using these criteria to spot high-quality tags.

another one about tagging: describes criteria for a good tagging system.

abstract of the international conference april 27-29, 2007 @ mit about "Collaboration and Collective Intelligence". some interesting resources and issues.

interesting stuff about principles of collaboration...

interessant stukje over samenwerkingsprincipes...

blogs, wiki, projects.. etc. Meest interessante ding is dat de search-query naast content ook members in de resultaten laat zien. Deze hebben in het verleden interesse getoond voor het onderwerp of zijn actief geweest.

Social and enterprise collaboration software. Wikis, blogs, projects.

another paper on collaborative tagging.. interesting..

This paper gives an overview of current trends in manual indexing on the Web. Along with a general rise of user generated content there are more and more tagging systems that allow users to annotate digital resources with tags (keywords) and share their annotations with other users. Tagging is frequently seen in contrast to traditional knowledge organization systems or as something completely new. This paper shows that tagging should better be seen as a popular form of manual indexing on the Web. Difference between controlled and free indexing blurs with sufficient feedback mechanisms. A revised typology of tagging systems is presented that includes different user roles and knowledge organization systems with hierarchical relationships and vocabulary control. A detailed bibliography of current research in collaborative tagging is included.

good blogpost about enterprise 2.0

Eigentaste is a collaborative filtering algorithm that uses universal queries to elicit real-valued user ratings on a common set of items and applies principal component analysis (PCA) to the resulting dense subset of the ratings matrix. PCA facilitates dimensionality reduction for offline clustering of users and rapid computation of recommendations. Eigentaste was patented by UC Berkeley in 2003. It has many possible applications, such as the recommendation of books, movies, toys, stocks, and music. It was originally used in an online joke recommendation system called Jester, which recommends new jokes to users based on their ratings of an initial set.

basecamp alternatief.. open source.

ProjectPier is a Free, Open-Source, self-hosted PHP application for managing tasks, projects and teams through an intuitive web interface. ProjectPier will help your organization communicate, collaborate and get things done Its function is similar to commercial groupware/project management products, but allows the freedom and scalability of self-hosting. Even better, it will always be free.

Stack Overflow is a collaboratively edited question and answer site for programmers - regardless of platform or language. Jump in and share your software engineering expertise!

handig om even naar te kijken: erg goed discussieforum >> inclusief votes e.d.

Communities of Practice... relevant or not?

here Etienne Wenger, the godfather of Communities of Practice, shortly explains his main theories in simple terms.

introduction to knowledge management

online crowdsourcing platform voor film makers

online crowdsourcing platform for making films: Create your film project from the ground up. Connect with film professionals and fans. Build your audience and career. Use tools to enhance and share your talent.

succesvol social platform om innovatie te ondersteunen.

innovation social platform

Twine is a new service that helps you organize, share and discover information about your interests, with networks of like-minded people. You can use Twine alone, with friends, groups and communities, or even in your company.

idd een erg interessant initiatief, wat overeenkomstigheden heeft met PEERS. Toch wordt hier geen onderscheid gemaakt tussen wat een persoon creëert, en wat een persoon leest/bekijkt. Ook is er geen beoordelingsmechanisme/algoritme.

Nice article explaining the most common "2.0" uses in organizations, and 6.0 things to keep in mind when adopting 2.0 stuff