ISDS EXAM 4 Questions with100%
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Data Mining - A way to develop intelligence (i.e. actionable information
or knowledge) from data that an organization collects, organizes, and
stores.
What recent factors have increased the popularity of data mining? -
Ge...
Definition of data mining: The __________ process of identifying valid,
novel, potentially useful, and ultimately understandable patterns in data
stored in structured databases. - ✔✔Nontrivial
Valid - ✔✔The discovered patterns should hold true on new data
Novel - ✔✔Previously unknown patterns are discovered
Potentially Useful - ✔✔Results should lead to some business benefit
Another name for data mining: - ✔✔Knowledge discovery
What is the most critical ingredient for data mining which may include
soft/unstructured data? - ✔✔Data
The miner is often an ____ ____. - ✔✔End user
Striking it rich requires _______ _______. - ✔✔Creative thinking
Two types of categorical data: - ✔✔Nominal and Ordinal
Nominal Data - ✔✔Simple codes assigned as labels. Ex: Marital status as
S-sing, M-married, D-divorced
Ordinal Data - ✔✔Codes assigned as rank order. Ex: Credit score as (1)
low, (2) medium, or (3) high
Two types of numerical data: - ✔✔Interval and Ratio
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