DEA Week 12

What is the primary objective of data mining?

• Data visualization

• Finding useful patterns in data

• Data storage

• Data retrieval

Which of the following is NOT considered a data mining technique?

• Classification

• Clustering

• Descriptive statistics

• Regression

What does the term "nontrivial process" in data mining refer to?

• Simple calculations

• Complex algorithms and iterations

• Data storage

• Data visualization

Which of the following is a key characteristic of patterns found through data mining?

• Redundant

• Previously known

• Potentially useful

• Uninterpretable

Which type of data mining involves uncovering hidden patterns in unlabeled data?

• Supervised

• Unsupervised

• Directed

• Inferential

What is the main difference between classification and regression in data mining?

• Classification deals with numeric output, regression with categorical

• Regression deals with numeric output, classification with categorical

• Both deal with categorical output

• Both deal with numeric output

Which of the following algorithms is used for classification?

• K-Means

• Linear Regression

• Logistic Regression

• PCA

What is clustering used for in data mining?

• Predicting output variables

• Identifying natural groupings in a dataset

• Data cleaning

• Data visualization

Which tool is NOT typically used for data mining?

• R

• SAS Enterprise Miner

• RapidMiner

• Microsoft Word

What does the CRISP-DM model stand for in data mining?

• Cross Industry Standard Process for Data Mining

• Customer Relationship Industry Standard Process

• Custom Industry Standard Process

• Cross Industry Statistical Process