Samouczki data science

The Poisson distribution models the probability of a certain number of events occurring within a fixed interval. See how it's applied in real-world scenarios like queueing theory and traffic modeling.

Learn the key components of the ARIMA model, how to build and optimize it for accurate forecasts in Python, and explore its applications across industries.

Discover how CatBoost simplifies the handling of categorical data with the CatBoostClassifier() function. Understand the key differences between CatBoost vs. XGBoost to make informed choices in your machine learning projects.

Learn how Chebyshev distance offers a unique approach to spatial problems. Uncover its applications in robotics, GIS, and game development with coding examples in Python and R.

Learn how the binomial distribution models multiple binary outcomes and is used in fields like finance, healthcare, and machine learning.

Learn how to implement binary search in Python using iterative and recursive approaches, and explore the built-in bisect module for efficient, pre-implemented binary search functions.

Discover how the Bernoulli distribution captures binary outcomes and is applied in everything from coin flips to customer predictions.

Use t-tests when dealing with small samples or unknown variance, and Z-tests when samples are large and variance is known.

Hypothesis testing is a statistical method used to evaluate claims about populations based on sample data.

Learn about QR decomposition, the matrix factorization technique that decomposes matrix A into the product of an orthogonal matrix Q and an upper triangular matrix R.

Explore cosine distance and cosine similarity. Discover calculations, applications, and comparisons with other metrics. Learn to implement in R and Python using numpy.

Learn how to calculate and apply Manhattan Distance with coding examples in Python and R, and explore its use in machine learning and pathfinding.