This paper presents a review of altmetrics or alternative metrics. This concept is defined as the creation and study of new indicators for analysing scientific and academic research activity based onWeb 2.0. The underlying premise is that variables such as mentions in blogs, numberof tweets or saves ofan articleby researchersin reference management systems, may be a valid measure of the use and impactof scientific publications. In this respect,these measuresare becoming particularly relevant, being at the centre of debate within the bibliometric community. Firstly,an explanation is given of the main platforms and indicators for this type of measurement. Subsequently,a study is undertaken of a selection of papers from the field of communication, comparing the number of citations received withtheir 2.0 indicators.The results show that the most cited articles within recent years also have significantly higher altmetric indicators. Next follows a review of the principal empirical studies undertaken, centering on the correlations between bibliometric and alternative indicators. To conclude, the main limitations of altmetrics are highlighted,alongside a reflective consideration of the role altmetrics may play in capturing the impactof research in Web 2.0 platforms.
In this post from the blog "The Innovation Diaries", the author tries to categorize people's tweets into a hierarchy resembling Abraham Maslow's Hierarchy of Needs for human beings. Each category is well explained and then illustrated by a few examples.
Denise Pires, a student from University of Amsterdam, wrote in the blog "Masters of Media" about why we, as human beings, tend to use the well-known microblogging service.
MySpace und Facebook haben jeweils Umsätze von 750 beziehungsweise 300 Millionen Dollar, während LinkedIn 2008 immerhin zwischen 75 und 100 Millionen einfahren konnte. Die Gesamtbewertung dieser Firmen hängt jedoch noch immer von ihrem einst gigantischen Wachstumspotenzial ab – und genau das gilt inzwischen als übertrieben positiv eingeschätzt.
I go through phases of complacency and disbelief when thinking about web accessibility. Working at SitePoint HQ, I’m fairly lucky in that everybody here is on the same page when it comes to accessibility; we spend time making sure our sites are access
I posted an updated tech demo of RhNav - Rhizome Navigation visualizing user behavior of this blog. The graph is now centered around the page where most time is spent. Noise created by search engine robots is filtered which should clear things up quite a
Using RhNav - Rhizome Navigation I wrote a data aggregator for Technorati's API. The first result is a video which visualizes blog domains by analysing Technorati's Cosmos (the blogs which link to a particular URL). The video is a screencast of RhNav fetc
In case you couldn't (or wouldn't *lazy*), we are here to provide the masses (but mostly ourselves) a place to catalog our media collection, whether it be books, DVDs, CDs...
And we're more than just that. We're providing a place for the packrats to commune and orate.
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on Database and Expert Systems Applications (DEXA 2010), page 193--197. Bilbao, Spain, IEEE Computer Society Press, (August 2010)
B. Markines, C. Cattuto, and F. Menczer. Proceedings of the 5th International Workshop on Adversarial Information Retrieval on the Web, page 41--48. New York, NY, USA, ACM, (2009)