1.3 data-MInIng Methods 7
produced by a data-mining system depends on the information needs of the
organization using the system. A great variety of information can be extracted
from databases using different algorithms. An efficient system is often con-
sidered to be one that provides the most assistance to the decision-making
process. Simple, blind application of data-mining algorithms can lead to the
discovery of meaningless and useless “knowledge” from databases. Hence,
data-mining systems have to be carefully customized to fit the individual
needs of the intended users.
Sophisticated analytical methods are used for the extraction of mission-
critical information from databases. Different algorithms render different
types of ...