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Data types analyzed/mined in the past 12 months

          

Types of Data Analyzed/Mined in the past 12 months
[144 voters]

table data (fixed # of columns) (102) 70.8%
time series (56) 38.9%
itemsets / transactions (52) 36.1%
text (free-form) (43) 29.9%
anonymized data (38) 26.4%
social network data (28) 19.4%
other (22) 15.3%
web content (19) 13.2%
XML data (17) 11.8%
web clickstream (15) 10.4%
email (15) 10.4%
images / video (11) 7.6%
music / audio (3) 2.1%

Comparing with a similar 2009 KDnuggets Poll: Types of Data Analyzed/Mined in the past 12 months , we see that the top 3 data types are still

  1. table data
  2. time series
  3. itemsets / transactions

Ignoring Spatial data, which was accidentally excluded from the 2010 poll, Data types with the highest increase in popularity
measured by (pct_usage2010 - pct_usage2009)/pct_usage2009 were

  1. other , up 61.3%
  2. social network data, up 53.9%
  3. anonymized data, up 39.3%

Largest decrease in popularity was for

  1. text free-form, down 21.2%
  2. images / video, down 39.5%
  3. music / audio , down 71.7%

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