DATABASE FUNDAMENTALS
DATA WAREHOUSING AND DATA MINING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A set of databases from different vendors possibly using different database paradigms
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An approach to a problem that is not guaranteed to work but performs well in most cases
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Information that is hidden in a database and that cannot be recovered by a simple SQL query.
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None of these
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Detailed explanation-1: -Answer» C. information that is hidden in a database and that cannot be recovered by a simple sql query.
Detailed explanation-2: -Hidden knowledge–patterns in the data that cannot be revealed by standard SQL. This is where DM techniques are used. Deep knowledge–requires additional direction by others as to what to look for. DM techniques not there yet.
Detailed explanation-3: -Data mining is a terminology used in computer science and is defined as the process of extracting specific information from a database that was hidden and not explicitly available for the user, using a set of different techniques such as ML. It is also called knowledge discovery in databases (KDD).
Detailed explanation-4: -Answer: a. Explanation: The term KDD or Knowledge Discovery Database is refers to a broad process of discovering the knowledge in the data and emphasizes the high-level applications of specific Data Mining techniques as well.