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Jorge Ortiz

3 accepted papers

2026

POLICYGRID: Causal Discovery for Adaptive Policy Optimization in Embodied Agents (Student Abstract)

AAAI 2026technical

Embodied agents must reason causally, as correlation-based models fail under intervention and distribution shift. This challenge arises in domains like robotics and cyber-physical systems, where agents balance efficiency and comfort under uncertainty. We introduce POLICYGRID, unifying causal discove

Cited by 0SourcePDFScholar
2017

Non-negative matrix factorization of signals with overlapping events for event detection applications

ICASSP 2017accepted

In many event detection applications, training data may contain tags with multiple, simultaneous events. This is particularly likely when the definition of “event” is broad and includes events that can persist for an extended period of time. Decomposing a mixed signal into signals corresponding to i…

Cited by 0SourceScholar