Other IT & Programming Subjects
Data Mining
True or False? Tests in CART are always Binary.
Explanation:
TRUE. CART (Classification and Regression Trees) uses binary splits at each node. Each test divides data into exactly two branches, creating a binary tree structure.
Decision trees are able to handle missing values without using any impute transformation. True or False?
Explanation:
TRUE. Decision trees can handle missing values through surrogate splits or by treating missing as a separate category, without requiring imputation to fill in missing data.
True or False? Economic indicators are external data factors.
Explanation:
TRUE. Economic indicators like interest rates, inflation, and GDP are external factors outside organizational control. They come from the broader economy and affect business operations.
True or False? The MARS algorithm cannot produce rules.
Explanation:
TRUE. MARS (Multivariate Adaptive Regression Splines) creates continuous piecewise linear models for regression/classification but doesn't produce explicit if-then rules like decision trees.
True or False? Artificial neural networks are linear predictive models.
Explanation:
FALSE. Neural networks are non-linear models. Activation functions introduce non-linearity, enabling networks to learn complex patterns linear models cannot capture.
What is the purpose of the Hadoop Distributed File System (HDFS)?
Explanation:
HDFS enables computation by giving each server data access. It stores large files across cluster nodes, allowing parallel processing where computation moves to data rather than moving data.
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