Unified Metric Loading From Multiple Sources With Factory Pattern

HuggingFace community-driven open-source library of evaluation

Unique: Uses a three-tier source resolution strategy (Hub → local → cache) with lazy instantiation of EvaluationModule subclasses, enabling seamless switching between community and custom metrics without reimplementation. The factory pattern decouples metric discovery from computation, allowing metrics to be versioned and shared as Hub Spaces with interactive widgets.

vs others: More flexible than monolithic metric libraries (e.g., scikit-learn) because metrics are decoupled from the library release cycle and can be updated independently on the Hub; more discoverable than ad-hoc metric scripts because all modules expose standardized metadata and documentation.