Nugget Pyramids

The present methodology for evaluating complex questions at TREC analyzes an- swers in terms of facts called “nuggets”. The official F-score metric represents the harmonic mean between recall and pre- …...

The idea of “nugget pyramids” has re- cently been introduced as a refinement to the nugget-based methodology used to evaluate answers to complex questions in the TREC QA tracks. This …...