Ongoing since 2022Online · Education · beginner · kaggle, machine-learning, data-science
A free, non-competitive Kaggle challenge designed for beginners to learn basic machine learning concepts. Participants build a binary classification model in Python to predict which passengers were transported to an alternate dimension using the Spaceship Titanic dataset.
Ongoing since 2012Online · Education · beginner · kaggle, machine-learning, binary-classification
A free beginner-friendly competition on Kaggle where you build a machine learning model to predict Titanic passenger survival. Using Python and tabular data, you practice binary classification and data analysis without needing prior ML experience.
Ongoing since 2016Online · Education · intermediate · regression, machine-learning, python
A free data science competition where participants predict house prices in Ames, Iowa using advanced regression techniques. Designed for those with Python or R experience to practice feature engineering and machine learning models like random forests.
Ongoing since 2021Online · Education · intermediate · time-series-forecasting, machine-learning, data-science
A free Kaggle competition where participants use machine learning to forecast store sales for an Ecuadorian grocery retailer. It targets those practicing time-series forecasting and regression skills on real-world retail data.
Ongoing since 2024Online · Tech · intermediate · llm, machine-learning, classification
A free online competition where you build a machine learning model to predict which of two LLM-generated responses users will prefer. Participants use real-world Chatbot Arena data to develop classification models addressing alignment and bias issues in AI.
Online · Education · intermediate · data-science, machine-learning, python
A team-based competition where students use Python and machine learning to identify anomalies in Mars rover imagery using unsupervised techniques. Participants submit code and reports via GitHub for a chance to advance to an offline round.
Online · Education · intermediate · data-science, sql, nlp
A free 12-day online data science competition where participants restore a fictional system using SQL, NLP, and data visualization. This event targets students and professionals looking to practice data analysis, problem-solving, and building end-to-end data solutions.