  Coreference annotation is an important, yet expensive and time consuming,
task, which often involved expert annotators trained on complex decision
guidelines. To enable cheaper and more efficient annotation, we present CoRefi,
a web-based coreference annotation suite, oriented for crowdsourcing. Beyond
the core coreference annotation tool, CoRefi provides guided onboarding for the
task as well as a novel algorithm for a reviewing phase. CoRefi is open source
and directly embeds into any website, including popular crowdsourcing
platforms.
  CoRefi Demo: aka.ms/corefi Video Tour: aka.ms/corefivideo Github Repo:
https://github.com/aribornstein/corefi
