Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wisdom of the Crowd or Wisdom of a Few? An Analysis of Users' Content
  Generation   In this paper we analyze how user generated content (UGC) is created,
challenging the well known {\it wisdom of crowds} concept. Although it is known
that user activity in most settings follow a power law, that is, few people do
a lot, while most do nothing, there are few studies that characterize well this
activity. In our analysis of datasets from two different social networks,
Facebook and Twitter, we find that a small percentage of active users and much
less of all users represent 50\% of the UGC. We also analyze the dynamic
behavior of the generation of this content to find that the set of most active
users is quite stable in time. Moreover, we study the social graph, finding
that those active users are highly connected among them. This implies that most
of the wisdom comes from a few users, challenging the independence assumption
needed to have a wisdom of crowds. We also address the content that is never
seen by any people, which we call digital desert, that challenges the
assumption that the content of every person should be taken in account in a
collective decision. We also compare our results with Wikipedia data and we
address the quality of UGC content using an Amazon dataset. At the end our
results are not surprising, as the Web is a reflection of our own society,
where economical or political power also is in the hands of minorities.

37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
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The categories of this paper are: q-fin
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The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
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The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an