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AI Alignment for the Working Engineer

Moving beyond philosophy to practical techniques for building AI systems that do what we actually want.

Sarah Kim

Sarah Kim

2023-12-20

14 min read

AI Alignment for the Working Engineer

Alignment isn't just a research problem for the future - it's an engineering challenge we face today with every AI system we deploy. Here's a practical guide to building systems that actually do what users want.

The Alignment Problem in Practice

Every AI deployment faces alignment challenges:

Intended: "Help users find relevant information"
Actual: "Maximize engagement metrics"
Result: Clickbait, misinformation, addiction

The gap between intended and actual behavior is the alignment problem.

Practical Techniques

1. Specification Gaming Prevention

AI systems are excellent at finding loopholes:

BAD: Easy to game

reward = clicks_per_session

BETTER: Harder to game

reward = ( user_satisfaction_survey 0.4 + task_completion_rate 0.3 + return_user_rate 0.2 + support_ticket_reduction 0.1 )

2. Constitutional AI in Production

Define explicit principles, then enforce them:

CONSTITUTION = [
    "Provide accurate information, admit uncertainty",
    "Respect user privacy and autonomy",
    "Avoid manipulation or deception",
    "Consider long-term user wellbeing over short-term engagement",
]

def generate_response(query, context): response = model.generate(query, context) for principle in CONSTITUTION: if violates(response, principle): response = model.revise(response, principle) return response

3. Interpretability for Trust

You can't align what you can't understand:

class InterpretableDecision:
    def __init__(self, action, confidence, reasoning):
        self.action = action
        self.confidence = confidence
        self.reasoning = reasoning  # Human-readable explanation
        self.alternatives = []  # What else was considered
        self.uncertainty_sources = []  # Where the model is unsure

4. Human-in-the-Loop Design

For high-stakes decisions:

┌─────────────────────────────────────┐
│         AI Recommendation           │
├─────────────────────────────────────┤
│ Action: Approve loan application    │
│ Confidence: 73%                     │
│                                     │
│ Key factors:                        │
│ • Income stability: Strong          │
│ • Credit history: Moderate          │
│ • Debt ratio: Concerning            │
│                                     │
│ [Approve] [Review] [Reject]         │
└─────────────────────────────────────┘

5. Monitoring and Feedback Loops

class AlignmentMonitor:
    def track(self, interaction):
        # Immediate metrics
        self.log_user_feedback(interaction)
        
        # Behavioral metrics
        self.detect_manipulation_patterns(interaction)
        
        # Long-term outcomes
        self.track_user_wellbeing(interaction.user_id)
    
    def alert_on_drift(self):
        if self.manipulation_score > THRESHOLD:
            alert_team("Potential gaming behavior detected")

Common Pitfalls

Goodhart's Law

"When a measure becomes a target, it ceases to be a good measure."

Every metric you optimize will be gamed. Solutions:

  • Multiple orthogonal metrics
  • Regularly rotate metrics
  • Human evaluation alongside automated metrics
  • Value Lock-in

    Don't assume today's values are correct:

    Allow values to be updated

    class EvolvingValues: def __init__(self): self.values = load_current_values() self.uncertainty = estimate_value_uncertainty() def update_values(self, feedback, societal_changes): # Values should be updatable, not hardcoded self.values = bayesian_update( self.values, feedback, self.uncertainty )

    Automation Bias

    Humans over-trust AI recommendations. Counter this:

  • Show confidence intervals, not point estimates
  • Highlight cases where AI is likely wrong
  • Train users on AI limitations
  • The Bottom Line

    Alignment isn't solved by:

  • ❌ Adding a "don't be evil" clause
  • ❌ Hoping the AI figures out what we want
  • ❌ Waiting for AGI researchers to solve it
  • Alignment requires:

  • ✅ Careful specification of objectives
  • ✅ Robust monitoring and feedback
  • ✅ Human oversight at appropriate levels
  • ✅ Humility about our own uncertainty
  • Build for the AI you have, not the AI you imagine.


    Further reading: RLHF in Practice - When Reward Modeling Goes Wrong

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