Doc Zamora's ML & AI

Doc Zamora's ML & AI

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Spurious Correlations in Machine Learning

May 31, 20224 min read

Lucky Correlations One of the challenges we face while designing machine learning solutions is picking the right prediction features. Deciding which...

Spurious Correlations in Machine Learning

Recommend Cereals with the Correlation Coefficient

Apr 20, 20223 min read

Today's post is about how to recommend things. Concretely, we are going to perform a basic implementation of an item-to-item recommender by using the...

Recommend Cereals with the Correlation Coefficient

Bootstrapping vs Cross-Validation

Apr 17, 20224 min read

Boostraping Bootstrapping is a resampling technique with replacement; that is, we can choose on every sample a subset of elements that might be...

Bootstrapping vs Cross-Validation

P-Value Intuition: Flipping Two Coins Example

Apr 16, 20223 min read

To understand what a p-value is, I looked into some simple scenarios to explain this without having to get into probability density functions and...

P-Value Intuition: Flipping Two Coins Example

Covariance and Correlation Coefficient

Apr 13, 20224 min read

Covariance Covariance is a measure that help us understand if two independent variables vary together (also called joint variability). If the...

Covariance and Correlation Coefficient

Poisson Probability: Earthquakes in San Francisco

Apr 13, 20222 min read

What is it? The Poisson distribution (Haight, 1967) is a discrete probability distribution that expresses the probability of a given number of...

Poisson Probability: Earthquakes in San Francisco