AI wish-list todos before July 18

[flannery-denny]

• use generate-pyret-images.arr for image-dot-plots in building-decision-trees. Redoing them by hand every time we generate slides is painful
• In data-driven-algorithms, have teachers compare the corrections from alt-words to corrections on their own phone
• student-facing lesson goals for natural language
• ES writes a paragraph about centroids for sentiment analysis (e.g. "essays with positive tone", compare to grammarly)
  add some text about what actual machine learning modeling would look like for what we're doing in the plagiarism lesson - compute a centroid for book recommendations.
• alternate corpora (recipes, nursery rhymes, gettysburg address)
• API for post-processing driving data
• Rewrite all contracts in AI as more complex versions that describe the info not just the datatype.
• Can emmanuel make this contract work without unicode characters?

[schanzer]

Moved "@starter-file{ai-text} points to ai-text (what Joe used) and @starter-file{ai-text2} points to ai-text2 (what ES will use). Eventually we can remove the former and rename the latter." to the weekend issue