gato-hep#

We present gato-hep: the Gradient-based cATegorization Optimizer for High Energy Physics analyses. gato-hep learns boundaries in N-dimensional discriminants that maximize signal significance for binned likelihood fits, using a differentiable approximation of signal significance and gradient descent techniques for optimization with TensorFlow.

Key Features#

  • Optimize categorizations in multi-dimensional spaces using Gaussian Mixture Models (GMM) or 1D sigmoid-based models

  • Set the range of the discriminant dimensions as needed for your analysis

  • Penalize low-yield or high-uncertainty categories to keep optimizations analysis-friendly

  • Built-in annealing schedules for temperature / steepness (setting the level of approximation for differentiability), and learning rate to stabilize training

  • Ready-to-run toy workflows that mirror real HEP analysis patterns

Indices and tables#