Channing Moore

I knew “fluorescents are weird” well enough to check again after we went outside in the sun, but I was not prepared for how much they would change.

21.06.2025 14:33 — 👍 2    🔁 0    💬 1    📌 0

In college I (the lighting designer) went fabric shopping with the costume designer. I brought my swatchbook of lighting color gels.

We went to this big warehouse in an old factory building, acres of cloth under fluorescent lights. I looked at how the samples would look in the colors of my lights.

21.06.2025 14:31 — 👍 1    🔁 0    💬 1    📌 0

Same here…

when I say, “my field,” I mean perceptual neuroscience, biophysics, engineering…

but tech is where I first learned that color metamerism existed and just how bananas it can be.

21.06.2025 14:27 — 👍 1    🔁 0    💬 1    📌 0

Metamerism (color) - Wikipedia

My field broadly if not narrowly:

cloth, paper, paint, and the like can look radically different colors under different lights even if the lights are the same color.

14.10.2023 19:52 — 👍 25    🔁 6    💬 2    📌 0

Whoops, Carthago is feminine, that should be Carthago deleta est.

29.07.2023 14:03 — 👍 0    🔁 0    💬 0    📌 0

I think this could have worked equally well as a post about sea-level rise.

29.07.2023 13:33 — 👍 0    🔁 0    💬 0    📌 0

Seriously, what map tool lets you just delete Tunisia and literally flood-fill it with blue?

https://www.nytimes.com/2023/07/29/world/africa/africa-coups-niger.html?smid=nytcore-ios-share&referringSource=articleShare

29.07.2023 13:15 — 👍 0    🔁 0    💬 1    📌 0

A map of Africa published online 2023-07-29 by the New York Times. Tunisia has been replaced on the map by a new arm of the Mediterranean Sea.

It only took a couple of millennia, but the NYT confirms this morning that the exhortation of Cato the Elder has come to pass:

Carthago deletus est.

29.07.2023 13:10 — 👍 1    🔁 0    💬 2    📌 0

Sortie - Wikipedia

It does! It comes from the French word because it means exiting your fortress to make a quick strike at the folks besieging it. Or so Wikipedia would have you believe: https://en.m.wikipedia.org/wiki/Sortie

29.07.2023 12:44 — 👍 3    🔁 0    💬 1    📌 0

We used a partial version of the balancing scheme from the PANN and PSLA/AST papers. Full balancing (PANN, PSLA/AST) hurts mAP on a held-out set, but partial balancing gives a small boost over baseline:

05.07.2023 15:02 — 👍 0    🔁 0    💬 0    📌 0

The training speedup is probably the most surprising finding. Other papers have suggested this, but the magnitude of the speedup is quite large: 6x with full balancing (but poor generalization) 2x with partial balancing at optimal generalization performance.

05.07.2023 15:01 — 👍 0    🔁 0    💬 1    📌 0

Dataset balancing can hurt model performance Machine learning from training data with a skewed distribution of examples per class can lead to models that favor performance on common classes at the expense of performance on rare ones....

Our 2023 ICASSP paper is now up on arXiv: Dataset balancing can hurt model performance https://arxiv.org/abs/2307.00079 Dataset balancing works differently than you might assume: - can cause overfitting; - doesn’t improve performance on rare classes; - speeds up training convergence.

05.07.2023 15:01 — 👍 5    🔁 0    💬 1    📌 0