Aggregator

Aggregator is a type of Evaluator which aggregates scores of multiple other Evaluators into one.

Grail by default provides 5 aggregators:

Average (Mean)
Min
Max
Sum
Product

Example

auto aggregator = std::make_shared<ProductAggregator<ContextType>>(
  std::vector<Evaluator<ContextType>>
  {
    someConsideration, someCurve, someOtherAggregator
  });

var aggregator = new ProductAggregator<ContextType>(
  new List<Evaluator<ContextType>>()
  {
    someConsideration, someCurve, someOtherAggregator
  });

API Reference

Aggregator API