Question
a.
Store only light summaries
b.
Strive to store detailed data unless it's a burden
c.
Extract detailed data directly from operational systems
d.
Only keep high-level summaries
Posted under Data Warehousing and OLAP
Engage with the Community - Add Your Comment
Confused About the Answer? Ask for Details Here.
Know the Explanation? Add it Here.
Q. What compromise approach is suggested for the level of granularity in the data warehouse for data mining engagements?
Similar Questions
Discover Related MCQs
Q. What is the relationship between data mining algorithms and data mining techniques?
View solution
Q. How are data mining processes related to data mining applications?
View solution
Q. What is clustering in the context of data mining?
View solution
Q. How is cluster detection characterized in terms of knowledge discovery?
View solution
Q. In cluster detection, what is the role of variables like age group and income level?
View solution
Q. What is the purpose of forming clusters in data mining?
View solution
Q. What is essential for understanding and utilizing the clusters formed by the data mining algorithm?
View solution
Q. In the context of data mining, what is K in the K-means clustering algorithm?
View solution
Q. How does the K-means clustering algorithm initially choose centroids?
View solution
Q. What determines the closeness of a customer record to a centroid in the K-means clustering algorithm?
View solution
Q. How does the algorithm redraw cluster boundaries in the K-means clustering algorithm?
View solution
Q. What is the primary application of decision trees in data mining?
View solution
Q. Why might decision trees be suitable in cases where the reasons for predictions are important?
View solution
Q. How is the effectiveness of a decision tree measured?
View solution
Q. What does pruning aim to achieve in decision trees?
View solution
Q. In memory-based reasoning (MBR), what does the algorithm use to predict unknown instances?
View solution
Q. What does the distance function do in MBR?
View solution
Q. What is the key role of the combination function in MBR?
View solution
Q. In MBR, what does the nearest neighbor predict for unknown respondents?
View solution
Q. What are the three critical issues when solving a data mining problem using MBR?
View solution
Suggested Topics
Are you eager to expand your knowledge beyond Data Warehousing and OLAP? We've curated a selection of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!