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David DeFranza

@ddefranza.bsky.social
26 followers 15 following 4 posts

Assistant Professor of Marketing at University College Dublin. Interested in marketing, consumer psychology, and computational social science. daviddefranza.com

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David DeFranza @ddefranza.bsky.social · 27/04/2026
Our new paper finds that not all misinformation sharers face equal consequences. On Reddit, low-status users get downvoted and challenged. High-status users see engagement hold or even increase. Reputation may matter more than accuracy. (Open access) doi.org/10.1093/jcmc/zmag005
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David DeFranza @ddefranza.bsky.social · 09/01/2026
Struggling to fit a Zero-Inflated LASSO with a large-N dataset? My new package, gradLasso, uses optimized gradient descent which scales efficiently and includes λ CV, stability selection, bootstrapped coefficients and confidence intervals, and more. cran.r-project.org/package=grad... #rstats
Cross-validated error for lambda selection plot generated by gradLasso.
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