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researcher

J. Rivera

3 papers hereh-index 221 citations8 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author1
  • middle author1

Across the 2 of 3 papers where every author was matched, so the position is known.

fields
  • cs.AI2
  • cs.CL1
same name
  • J. Rivera — 2 papers, h 6

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

collaborators
Showing cs.AIShow all

2 papers · 1 filter

cs.AI2026

Measuring Activation Control in Large Language Models

Marek Mateusz Kowalski, Joshua Fonseca Rivera, Uzay Macar +1

Safe deployment of increasingly capable models will likely come to rely on latent-space monitoring as a complement to behavioral evaluations, especially when evaluation-aware model…

cs.AI2026

Item Response Theory for AI Safety

Joshua Fonseca Rivera, Neil Shah, David Demitri Africa +1

Language models differ in how safely they behave and these differences are measured by safety benchmarks. But aggregated benchmark scores are hard to trust and interpret, because b…

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