SYS 478: Fall 2026

Thu, Oct 8

Module 3. A Toolkit for Understanding AI in Society

How Do Predictions Become Decisions?

Scores, thresholds, classifications, error, and accountability.

Topic / Focus

Today asks how predictions become decisions: scores, thresholds, classifications, error, and accountability, and who bears the cost when a threshold is set in the wrong place.

Format: Full class · Lesson template: Concept + Lab

Guiding Questions

  • How does a threshold turn a continuous score into a consequential decision?
  • Who bears the cost when a threshold produces a false positive or false negative?
  • What does procedural justice ask of a system that makes threshold decisions?

In This Class

In this meeting, we will:

  • walk through threshold cases: blood pressure, FICO cutoffs, the Allegheny Family Screening Tool, face-recognition matching
  • connect thresholds making uncertainty consequential to procedural justice
  • discuss who bears the cost of error in each case