quantitative analysis of user-generated content on the web
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Quantitative Analysis of User-Generated Content
on the Web
Xavier Ochoa, ESPOL, EcuadorErik Duval, KULeuven, Bélgica
TopicsWhy?StudiesFindings
Implication of the Findings
ConclusionFurterWork
Why?
• UGC economy:– Supply: Users publishing their content
–Demand: Users viewing content from others
–Currency: Attention
Why?
• Demand (Popularity) is relatively well understood:
• But Supply (Publication) is not....
How a ‘hit’ is born (S Sinha, RK Pan, 2006)
Studies
Studies
1. Descriptive Statistics
2. Distribution Fitting
3. Concentration Analysis
Findings
• Distribution of supply is not Normal
Findings
• Distribution of supply has a heavy tail
Findings
Lotka (“fat-tail”) Weibull (“fat-belly”)
Implications of the Findings
There is not such thing as an “average user”
Low Class
Middle Class
High Class
Implications of the Findings
The production of different UGC types is similar, but not
the same.
Implications of the Findings
Pareto Rule (80/20) applies to UGC
(but no substitute to measuring)
Implications of the Findings
“Fat-tail” UGC production is similar to professional
production.
Implications of Findings
The distribution is not affected by site size
or production effort
Implications of the Findings
Make your bet, head or tail?
50% of Content is generated here
50% of Content is generated here
Implications of the Findings
Informetrics can help us to understand UGC production
(and vice versa)
Conclusions
• Measuring is our only way to test our hypothesis about how Web works
• If you admin a UGC-based site, measure production to gain insight on the other side of your economy
• Inequality of Contribution of UGC is real and should be dealt with in all its variations.
Further Work
• Modeling Production of UGC• Integrate UGC inside the Informetrics /
Scientometrics / Webometrics framework• Expand the data collection and analysis– Measure growth (size and contributors)– Measure production rate– Use at least 3 examples for each type of UGC
Xie xie, questions?
Xavier Ochoa – xavier@cti.espol.edu.ecErik Duval – Erik.Duval@cs.kuleuven.be
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