Author Question: ________ can be achieved by rolling up a data cube to the smallest level of aggregation needed, ... (Read 170 times)

LaDunn · **on:** Jul 7, 2018

________ can be achieved by rolling up a data cube to the smallest level of aggregation needed, reducing the dimensionality, or dividing continuous measures into discrete intervals.

A) Data cleansing
B) Normalization
C) Clustering
D) Data reduction
E) Inferencing

Question 2

How can the effectiveness of e-mail advertising campaigns be measured directly?

A) by reflecting the percentage of visitors who actually perform the marketer's desired action
B) by reflecting the number of surfers who click on an ad divided by the number of times it was displayed
C) by creating use cases and business models to determine the ratio of the opened mails to the sent mails
D) by conducting online polls, starting online forums, and collecting user feedbacks
E) by including special links in the e-mail that allow tracking which e-mails the customers have opened or reacted to