________ 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
Smallest Hamster in the World
Mechanisms of pain at the nociceptor level.
Many U.S. regions under threat due to changes in sea level
Changes in the Level of Education, 1975-2010
Share of Hours Worked by Education Level, 1940–2008
Data management questions