Week 2 Notes

Published

September 15, 2025

Key Concepts Learned

  • Algorithms: sets of instructions for solving problems or completing tasks
  • Data analytics is inherently subjective
  • Algorithmic decision-making in government:
    • Assists or replaces human decision-makers
    • Relies on models that process historical data
  • Inputs: “features,” predictors, independent variables, x
  • Outputs: “labels,” outcomes, dependent variables, y
    • Promises efficiency, consistency, objectivity, and cost savings
  • Margin of error (MOE):
    • Large MOE relative to estimate = less reliable
    • Small MOE relative to estimate = more reliable
    • “M” in data tables stands for margin of error

Coding Techniques

  • Clarified distinctions between:
    • Data science: algorithms/methods, computer science focus
    • Data analytics: applying data science methods across disciplines
    • Machine learning: algorithms for classification and prediction that learn from data
    • Artificial intelligence (AI): algorithms that adjust and improve across iterations

Questions & Challenges

  • When will I figure out Github!?

Connections to Policy

  • Real-World Examples
    • Criminal justice/recidivism risk
    • Housing & finance/mortgage lending
    • Healthcare/patient care prioritization
  • Government Data Collection History
    • Civic registration systems, census data, administrative records, operations research
  • Why Census Data Matters
    • Foundation for understanding community demographics; allocating government resources; tracking neighborhood change; designing fair algorithms

Reflection

  • I’m slowly getting things… I think?