Machine Learning Lesson 2: Preparing Data (Missing Values and Text Columns)
Models only accept complete, numeric tables. Find and fill missing values with the median and turn text columns like city into 0/1 columns with…
Read article →AI & ML
Artificial intelligence explained by building it: machine learning, neural networks, LLMs, RAG and agents — plus how to build your own language model.
Machine Learning Lesson 1: What ML Is and Your First Model
Machine Learning Lesson 1: What ML Is and Your First Model
What machine learning actually is, the words you need (features, target, training), installing scikit-learn, and a first model that predicts flat prices from area.
Read article →Group Customers Automatically with K-Means in Python (From an Excel File)
Group Customers Automatically with K-Means in Python (From an Excel File)
Use k-means clustering to split customers into segments by orders, spend and recency — reading from and writing back to Excel with pandas and…
Read article →Decision Trees in Python: A Model You Can Actually Read
Decision Trees in Python: A Model You Can Actually Read
Train a decision tree classifier with scikit-learn, print its rules as plain if/else text, measure accuracy honestly with a test split, and avoid overfitting…
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