  We present SetExpander, a corpus-based system for expanding a seed set of
terms into a more complete set of terms that belong to the same semantic class.
SetExpander implements an iterative end-to end workflow for term set expansion.
It enables users to easily select a seed set of terms, expand it, view the
expanded set, validate it, re-expand the validated set and store it, thus
simplifying the extraction of domain-specific fine-grained semantic classes.
SetExpander has been used for solving real-life use cases including integration
in an automated recruitment system and an issues and defects resolution system.
A video demo of SetExpander is available at
https://drive.google.com/open?id=1e545bB87Autsch36DjnJHmq3HWfSd1Rv (some images
were blurred for privacy reasons).
