Rachel Kohler, a computer science MS student advised by Dr. Luther, successfully defended her master’s thesis today. Rachel conducted interviews with geolocation experts that led to an accepted poster at the upcoming Collective Intelligence 2017 conference. She then led the development of GroundTruth, a software tool that uses crowdsourcing to support expert geolocators. She also conducted several experiments showing that crowds can substantially narrow down an expert’s search space. Congrats Rachel!