Orange Blog

By: Blaž Zupan, Jun 16, 2022

Ideas and Notes for Teachers

We are crafting free educational material to help in data science training.

Categories: education

By: Zala Gruden, Jun 2, 2022

How to grow trees in a marmalade factory?

We visited fourthgraders in our local elementary school and taught them about clustering and data collection.


By: Ela Praznik, May 25, 2022

An introduction to the Kaplan-Meier Estimator

The Survival Analysis add-on offers accesible tools for survival analysis, the Kaplan-Meier widget being a prime example. In this blogpost we provide an introduction to the Kaplan-Meier Estimator using a simple example and show how the tool can be used in Orange on larger datasets.


By: Ajda Pretnar Žagar, May 20, 2022

Confusion matrix for regression?

Confusion matrix shows classification error, but what is a suitable alternative for observing regression errors in Orange?


By: Noah Novšak, May 13, 2022

Predictive Modelling with Attribute Interactions

The Interactions widget has been added back to Orange 3. Illustrating how to use attribute interactions to improve predictive models.

Categories: orange interaction addons

By: Zala Gruden, May 12, 2022

We have launched a new project on the topic of AI in schools

Read more about the project in the blogpost and Check out the site to find out more about the prepaired activities.


By: Blaž Zupan, Apr 26, 2022

Training with Orange: A Tutorial at AIME 2022 in Halifax

A conference on Artificial Intelligence in Medicine is hosting our tutorial on training of crucial mechanics behind data science and machine learning with Orange.

Categories: orange workshop

By: Blaž Zupan, Apr 26, 2022

Orange Webinar for Educators #1: Where to Start?

On Thursday, May 26, 2022, at 16:00 CET, we will organize a webinar for educators who either use or are interested in using Orange Data Mining in data science training. The webinar will feature a short demo on using Orange for training in machine learning. We will showcase several data visualization and exploration widgets and show you some tricks that you could use in your training sessions. We will also present our GitHub repository with our openly-available Orange training material.

Categories: orange workshop

By: Ajda Pretnar Žagar, Mar 18, 2022

LDAvis: visualization for LDA topic modelling

Text add-on recently got extended with LDAvis widget, a visualization that enables exploring word frequencies in LDA-generated topics. See how to construct LDAvis pipeline in Orange.


By: Primož Godec, Feb 11, 2022

Editing the photographs collection with the help of machine learning

The core element of Orange's image analysis is embedding images in the vector space, which just became a feaster with our infrastructure upgrades. We use this opportunity to show possible ways of analyzing images through observing similar images and classifying them.