Thomas Lefebvre
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tlbvr.com
Thomas Lefebvre
@tlbvr.com
Product/ML Eng. I'm building unsplash.com

I write things on tlbvr.com
Montreal 🇨🇦
Similar to: why do I always see my queen blunders after I made the move.
August 26, 2025 at 1:23 PM
Since each model has only seen a portion of the data, we can assume it will give "honest" predictions. We can gather all of these predictions and give that to cleanlab which will analyze the probabilities and output a report of potentially mislabeled images.

docs.cleanlab.ai/stable/tutor...
Detecting Issues in an Image Dataset with Datalab
This quickstart tutorial demonstrates how to find issues in image classification data. Here we use the Fashion-MNIST dataset (60,000 images of fashion products from 10 categories), but you can repl...
docs.cleanlab.ai
July 28, 2025 at 11:34 PM
I'm setting up K-fold cross validation producing K models, each trained on a subset of the training set and predicting on a validation set. Appending those predictions together, we ensure that the whole dataset has been seen but equally split amongst the models.
July 28, 2025 at 11:34 PM
Because I want to spot issues in my training data, I can't use a model trained on that data to create predictions because it'll be too confident since it's seen the data before.
July 28, 2025 at 11:34 PM
Victory!
July 27, 2025 at 5:17 PM
I spawned two machines. Someone stops me.
July 24, 2025 at 12:12 AM
It did not. Back to the drawing board.
July 23, 2025 at 11:20 PM
If we find a fourth, we could even play 4-players chess or bughouse.

www.chess.com/terms/4-play...
www.chess.com/terms/bughou...
July 17, 2025 at 12:08 PM
Making good progress. Here's a peek — Probably gonna take me another week or so.
June 23, 2025 at 8:51 PM
It's tough because I'm also learning new things I may have not bothered learning in any other way given the potentially steep learning curve.
June 21, 2025 at 2:07 PM