Wrote a grammar checker that used both ML models and rules (which in turn used e.g. part-of-speech taggers based on ML). Wrote a system for automatically gradi

Wrote a grammar checker that used both ML models and rules (which in turn used e.g. part-of-speech taggers based on ML). Wrote a system for automatically grading kids' essays (think the lame "summarize this passage"-type passages on standardized tests). In that case it was actually a platform for machine learning - ie, plumb together feature modules into modeling modules and compare output model results.