Code for: Towards Flexible Building Energy Surrogate Models: A Novel Feature Representation Method

The framework extracts fixed-length feature vectors directly from building geometry, construction assemblies, and climate data, offering an alternative to conventional design-parameter-based inputs.

Four representations are supported: a conventional parameter-based baseline and three parameter-independent alternatives. Parameter-based features (baseline), using the raw design parameters of a given design space, Global aggregated features, summarizing geometric, material, and climatic quantities via sums, means, and extrema into a compact vector, Coarse directional features, capturing orientation-dependent effects across six cardinal directions, and Fine directional features, resolving orientation dependence further using a 302-patch orientation discretization.