A specialist must choose between a naive Bayes model and a full Bayesian network. Pearson correlations between features have absolute values ranging from 0.1 to 0.95. Which model better represents this data?
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Correct answer: A full Bayesian network, because some features are statistically dependent..
Why this is the answer
A full Bayesian network is the better choice because the Pearson correlation values, ranging from 0.1 to 0.95, indicate that some features are statistically dependent. A naive Bayes model assumes that all features are conditionally independent given the class variable. This assumption is often violated in real-world data, and the presence of correlations (even low ones like 0.1, and especially high ones like 0.95) directly contradicts this assumption. A full Bayesian network, in contrast, can explicitly model and represent these dependencies between features, leading to a more accurate representation of the data and potentially better predictive performance.
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