Round 187

Round UUID: d9f56a1e-37cd-47a4-bb27-8ecc93c36b95

Prompt:

Classify each reef as either 'Healthy' or 'Stressed' using ONLY the following explicit, threshold-based rules. Apply the rules in order, without exception, guessing, or using features not given below. Favor objective thresholds, and operate only on the stated criteria.

A. Assign 'Stressed' if ANY of these are true:
  1. ReefIntegrityScore is 'Very Poor'; OR PollutionLevel is 'Critical' and NOT all of:
      - PreviousStressIncidents is 'None'
      - DistantStressIndicators is 'None'
      - PredatorActivityLevel is 'None'
  2. BleachingEventsPerYear is 'Constant' or 'Frequent' AND (
      a. AlgalCoverage is 'Heavy' OR 
      b. ReefIntegrityScore is not 'Good' or better OR 
      c. PollutionLevel is 'High' or worse OR 
      d. PreviousStressIncidents is not 'None' or 'Minor' OR
      e. BiodiversityIndex is 'Medium' or lower
      )
  3. At least THREE of these are true:
      • PreviousStressIncidents is not 'None' 
      • DistantStressIndicators is not 'None'
      • NearbyHealthyReef is 'Absent' 
      • PredatorActivityLevel is 'High' or worse
      • PollutionLevel is 'High' or worse
      • BiodiversityIndex is 'Medium' or lower
  4. ObservationDuration > 100 AND (BleachingEventsPerYear is 'Constant' or 'Frequent').

B. Assign 'Healthy' if and only if ALL of these are true:
  1. BiodiversityIndex is 'High' or 'Very High'
  2. ReefIntegrityScore is at least 'Moderate' (not 'Poor' or 'Very Poor')
  3. PollutionLevel is 'Low' or 'Moderate'
  4. PreviousStressIncidents is 'None' or 'Minor'
  5. BleachingEventsPerYear is not 'Frequent' or 'Constant', UNLESS: (
      PollutionLevel is 'Low' or 'Moderate' AND PreviousStressIncidents is 'None' or 'Minor' AND BiodiversityIndex is 'High' or 'Very High' (all must be true for exception)
     )
  6. AlgalCoverage is not 'Heavy'; 'Extensive' is allowed ONLY if all above conditions are strictly met and PredatorActivityLevel is not 'High' or worse and DistantStressIndicators is not 'Confirmed' or worse.

C. If neither A nor B applies, assign:
   - 'Stressed' if there are at least TWO negative signals among: PreviousStressIncidents not 'None', DistantStressIndicators not 'None', NearbyHealthyReef 'Absent', PredatorActivityLevel 'High' or worse, PollutionLevel 'High' or worse, BiodiversityIndex 'Medium' or lower.
   - 'Healthy' otherwise.

Notes:
- AlgalCoverage 'Extensive' alone is NOT sufficient for 'Stressed', and is compatible with 'Healthy' ONLY if ALL other Healthy criteria, including positive stress, predator, and distant signals, are met.
- PollutionLevel 'Critical' or BleachingEventsPerYear 'Constant'/'Frequent' are decisive only as listed above.
- If BleachingEventsPerYear is 'Constant' or 'Frequent' AND BiodiversityIndex is 'Medium' or lower, always assign 'Stressed.'
- Numerical variables (ObservationDuration, CoralAgeEstimate, AcousticIntensity, ReefAverageAge) are only used in explicit rules above.
- When case is ambiguous, classify as 'Healthy' ONLY if positive indicators are clearly dominant and no decisive negative from A applies.

Apply the above rules EXACTLY, with no interpretation, extrapolation, or exception beyond what is written.

• Inferences: 1000
• Created: 2025-04-17 04:32:10+00:00
• First inference: 2025-04-17 04:32:19+00:00
• Last inference: 2025-04-17 06:20:41+00:00
• Completed: yes
• Train accuracy: 0.4342273307790549 (KT 0.362)
• Validation accuracy: 0.5096153846153846 (KT 0.293)
• Test accuracy: 0.336283185840708 (KT 0.473)