Types of Data Analyzed / Mined

Poll

table data - fixed # of columns (75) 70.8% time series (36) 34.0% text - free-form (35) 33.0% transactions (association rules) (30) 28.3% anonymized data (27) 25.5% spatial data (2D 3-D) (15) 14.2% other (15) 14.2% email (11) 10.4% web clickstream (9) 8.5% links or networks (9) 8.5% images / video (8) 7.5% XML data (7) 6.6% web content (6) 5.7% music / audio (5) 4.7%

Note from the Editor

Compared to 2005 KDnuggets Poll on
Types of data you analyzed/mined in last 12 months, the biggest increase was in anonymized data - from 11% in 2005 to 25% of respondents in 2006 (perhaps and indicator of increasing importance of privacy issues).

There was a small decline in percentage analyzing
table data (from 82% to 71%), but it still remained the leading data type.

Data types with significant drop in percentage were:

• web content percentage dropped from 15% in 2005 to 5.7% in 2006
• web clickstream percentage dropped from 17% to 8.5%.
• XML data percentage dropped from 13 to 6.6%.

Other types of data did not significantly change their percentages.