Author

Sahil Sidheekh

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Preprint Aug 2026

A Compositional Theory of Curvature in Probabilistic Circuits

Probabilistic Circuits (PCs) are generative models that support exact inference and, unlike deep neural networks, admit an exact and tractable measure of loss-surface curvature: the trace of the Hessian of the log-likelihood. Recent work regularizes this trace globally to bias learning toward flatter, better generalizi...

Hrithik Suresh, Sahil Sidheekh, Shelar Parth Vijay et al. · 0 citations

#machine learning Preprint Aug 2026

Reliable Fusion of Conflicting Experts

We study the problem of aggregating opinions from multiple black-box experts in noisy, conflict-prone settings where expert reliability varies across inputs. Static aggregation methods, such as majority voting, fail to capture this variability and often yield unreliable outcomes under disagreement. We propose a tractab...

Pranuthi Tenali, Sahil Sidheekh, Saurabh Mathur et al. · 0 citations

#artificial intelligence Conference Feb 2024

Building Expressive and Tractable Probabilistic Generative Models: A Review

A unified perspective on the inherent trade-offs between expressivity and tractability is provided, highlighting the design principles and algorithmic extensions that have enabled building expressive and efficient PCs, and a taxonomy of the field is provided.

Sahil Sidheekh, S. Natarajan · International Joint Conferen... · 13 citations