Most of the winning algorithms in machine learning competitions are tree-based models and the base estimator for most of the tree-based...

What is Machine Learning? Arthur Samuel (1959) - Machine Learning: Field of study that gives computers the ability to learn without being...

Population vs Sample Suppose someone wants to know some measurements such as height or weight or blood pressure of the whole population....

The North American Industry Classification System (NAICS) is an industry classification system developed by the statistical agencies of...

Data visualization is the practice of translating information into a visual context, such as a map or graph, to make data easier for the...

Happy families are all alike; every unhappy family is unhappy in its own way. ( Leo Tolstoy ) Tidy datasets are all alike but every messy...

Due to the development of the relational database management system (RDMS), combining and merging data has become an essential...

After loading, merging, and preparing a data set, the next important step is to compute group statistics and pandas provides a...

For a data scientist, the first step is to import data to the workplace. In python, most of us use the `read_csv` method for importing...

The IMDB website has a description of the Office (US) as "A mockumentary on a group of typical office workers, where the workday consists...