iiinova — where your digital self keeps evolving

Caleb Charpentier

@calcharp.bsky.social

71 followers 63 following 6 posts

Ph.D. Candidate in Uyeda Lab at Virginia Tech. Evolution, comparative methods, morphology, AI. 🖥️🐌🦋🤖

Posts Replies Media

Reposted by Caleb Charpentier

Josef Uyeda @pseudacris.bsky.social · 29/09/2026

New preprint led by grad student Caleb Charpentier that I'm very excited about! This is a hefty review & perspective on how we can close the gap in trust between new "Deep comparative methods", and the biological meaning & inferences that systematists want. ecoevorxiv.org/repository/v...

ecoevorxiv.org

On the Promise (and Practice) of Deep Comparative Methods: Expressivity, Limitations, and Design

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Reposted by Caleb Charpentier

EcoEvoRxiv @ecoevorxiv.bsky.social · 29/09/2026

On the Promise (and Practice) of Deep Comparative Methods: Expressivity, Limitations, and Design doi.org/10.32942/X2M...

An intuition for universal function approximation. A neural network with one hidden layer can form a weighted sum of sigmoid functions applied to weighted and shifted inputs. With that in mind, this figure illustrates the intuition behind the universal approximation results of Cybenko (1989) and Hornik et al. (1989) in one input dimension. More generally, neural networks can approximate mappings between high-dimensional numerical inputs and outputs. Because images, videos, CT scans, text, and conventional trait measurements can all be encoded numerically, this capacity allows neural networks to map complex patterns in any of these data sources onto other numerical representations or predictions.

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Caleb Charpentier @calcharp.bsky.social · 13/08/2026

I've updated my job search dashboard to be a bit visually easier to deal with, and RSS feeds are now included. It scrapes ecoevojobs.net, evoldir.net, and jobs.sciencecareers.org. Here is the site, if any EcoEvo people want a convenient job search tool: calebcharpentier.com/EcoEvoJobSearcher

calebcharpentier.com

Eco & Evo Jobs

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Caleb Charpentier @calcharp.bsky.social · 31/07/2026

Loved last week’s Education in the Age of AI workshop with 6th–12th grade teachers and researchers from @NSF’s Harnessing the #DataRevolution ecosystem! Explore the GBIF/iNaturalist tool we built for 6th–12th grade biology and environmental science: imageomics.github.io/hdr-species-... #imageomics

imageomics.github.io

Species Map Explorer

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Reposted by Caleb Charpentier

T. Mason Linscott @madmollusc.bsky.social · 09/04/2025

I am thrilled to announce I'll be starting as an Assistant Professor in the Department of Biology at New Mexico State University this Fall! I can't wait to work with some amazing colleagues and students amidst the sky islands of the SW! Woooo more ecophysiology, evolution, and snails!

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