Iteration 2 - OR_EXPERT_REFINEMENT
Sequence: 5
Timestamp: 2025-07-27 22:07:18

Prompt:
You are an Operations Research (OR) expert in iteration 2 of an alternating optimization process. The algorithm alternates between OR expert analysis and data engineering implementation until convergence.

CRITICAL MATHEMATICAL CONSTRAINTS FOR LINEAR/MIXED-INTEGER PROGRAMMING:
- The optimization problem MUST remain Linear Programming (LP) or Mixed-Integer Programming (MIP)
- Objective function MUST be linear: minimize/maximize ∑(coefficient × variable)
- All constraints MUST be linear: ∑(coefficient × variable) ≤/≥/= constant
- Decision variables can be continuous (LP) or mixed continuous/integer (MIP)
- NO variable products, divisions, or other nonlinear relationships
- If previous iteration introduced nonlinear elements, redesign as linear formulation
- Maintain between 2 and 20 constraints for optimization feasibility

YOUR SCOPE: Focus exclusively on optimization modeling and mapping analysis. Do NOT propose database changes.
ROW COUNT AWARENESS: Understand that data engineer applies 3-row minimum rule - insufficient table data gets moved to business_configuration_logic.json.


DATA AVAILABILITY CHECK: 
Before listing missing requirements, verify:
- Check current schema for required data columns
- Check business configuration logic for required parameters  
- Only list as "missing" if data is truly unavailable
- If all mappings are "good", missing_requirements should be []

CONSISTENCY RULES:
- IF all mapping_adequacy == "good" THEN missing_optimization_requirements = []
- IF missing_optimization_requirements = [] THEN complete CAN be true
- IF complete == true THEN confidence should be "high"

SELF-CHECK: Before responding, verify:
1. Does current schema contain the data I claim is missing?
2. Are my mapping assessments consistent with missing requirements?
3. Is my complete status consistent with missing requirements?

MAPPING COMPLETENESS CHECK: Ensure logical consistency between:
- All objective coefficients mapped with adequacy evaluation
- All constraint bounds mapped with adequacy evaluation  
- All decision variables mapped with adequacy evaluation
- Missing requirements list matches inadequate mappings only


CRITICAL: Respond with ONLY a valid JSON object. No explanations, no markdown, no extra text.



CURRENT STATE (iteration 1):
{
  "iteration": 2,
  "converged": false,
  "business_context": "A university aims to optimize the assignment of students to dormitories by minimizing the number of students with allergies assigned to non-allergy-friendly dormitories, considering dormitory capacities.",
  "optimization_problem": "The university needs to assign students to dormitories such that the number of students with allergies assigned to non-allergy-friendly dormitories is minimized, while respecting dormitory capacities and ensuring each student is assigned to exactly one dormitory.",
  "objective": "minimize sum(penalty_value[student_id, dormitory_id] * x[student_id, dormitory_id])",
  "table_count": 1,
  "key_changes": [
    "Schema changes include creating a table for decision variables and updating configuration logic for scalar parameters and formulas based on OR expert mapping analysis."
  ],
  "math_consistency": "high",
  "next_iteration_focus": "Map decision variables to schema and ensure all constraints are correctly implemented",
  "mapping_adequacy_summary": "partially_adequate"
}

CURRENT SCHEMA:
```sql
-- Iteration 2 Database Schema
-- Objective: Schema changes include creating a table for decision variables and updating configuration logic for scalar parameters and formulas based on OR expert mapping analysis.

CREATE TABLE dormitory_capacity (
  dormitory_id INTEGER,
  capacity INTEGER
);

CREATE TABLE dormitory_allergy_friendly (
  dormitory_id INTEGER,
  is_allergy_friendly BOOLEAN
);

CREATE TABLE allergy_penalty (
  student_id INTEGER,
  dormitory_id INTEGER,
  penalty_value FLOAT
);

CREATE TABLE student_dormitory_assignment (
  student_id INTEGER,
  dormitory_id INTEGER,
  assignment BOOLEAN
);


```

CURRENT DATA DICTIONARY:
{
  "tables": {
    "dormitory_capacity": {
      "business_purpose": "Stores the capacity of each dormitory",
      "optimization_role": "constraint_bounds",
      "columns": {
        "dormitory_id": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each dormitory",
          "optimization_purpose": "Links capacity to specific dormitory",
          "sample_values": "1, 2, 3"
        },
        "capacity": {
          "data_type": "INTEGER",
          "business_meaning": "Maximum number of students a dormitory can accommodate",
          "optimization_purpose": "Used as a constraint bound",
          "sample_values": "50, 100, 150"
        }
      }
    },
    "dormitory_allergy_friendly": {
      "business_purpose": "Indicates whether each dormitory is allergy-friendly",
      "optimization_role": "business_data",
      "columns": {
        "dormitory_id": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each dormitory",
          "optimization_purpose": "Links allergy-friendliness to specific dormitory",
          "sample_values": "1, 2, 3"
        },
        "is_allergy_friendly": {
          "data_type": "BOOLEAN",
          "business_meaning": "Indicates if a dormitory is allergy-friendly",
          "optimization_purpose": "Used to determine valid assignments",
          "sample_values": "true, false"
        }
      }
    },
    "allergy_penalty": {
      "business_purpose": "Stores penalty values for assigning students with allergies to non-allergy-friendly dormitories",
      "optimization_role": "objective_coefficients",
      "columns": {
        "student_id": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each student",
          "optimization_purpose": "Links penalty to specific student",
          "sample_values": "101, 102, 103"
        },
        "dormitory_id": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each dormitory",
          "optimization_purpose": "Links penalty to specific dormitory",
          "sample_values": "1, 2, 3"
        },
        "penalty_value": {
          "data_type": "FLOAT",
          "business_meaning": "Penalty for assigning a student with allergies to a non-allergy-friendly dormitory",
          "optimization_purpose": "Used in objective function",
          "sample_values": "10.0, 20.0, 30.0"
        }
      }
    },
    "student_dormitory_assignment": {
      "business_purpose": "Stores the assignment of students to dormitories as binary decision variables",
      "optimization_role": "decision_variables",
      "columns": {
        "student_id": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each student",
          "optimization_purpose": "Links assignment to specific student",
          "sample_values": "101, 102, 103"
        },
        "dormitory_id": {
          "data_type": "INTEGER",
          "business_meaning": "Unique identifier for each dormitory",
          "optimization_purpose": "Links assignment to specific dormitory",
          "sample_values": "1, 2, 3"
        },
        "assignment": {
          "data_type": "BOOLEAN",
          "business_meaning": "Binary variable indicating if a student is assigned to a dormitory",
          "optimization_purpose": "Used as a decision variable in optimization",
          "sample_values": "true, false"
        }
      }
    }
  }
}


CURRENT BUSINESS CONFIGURATION LOGIC:
{
  "dormitory_capacity_limit": {
    "sample_value": "100",
    "data_type": "INTEGER",
    "business_meaning": "Maximum number of students a dormitory can accommodate",
    "optimization_role": "Used as a constraint bound in optimization model",
    "configuration_type": "scalar_parameter"
  },
  "allergy_penalty_formula": {
    "formula_expression": "penalty_value * number_of_students_with_allergies",
    "data_type": "STRING",
    "business_meaning": "Calculates penalty for assigning students with allergies to non-allergy-friendly dormitories",
    "optimization_role": "Used in objective function to minimize penalties",
    "configuration_type": "business_logic_formula"
  }
}


TASK: Refine the optimization problem formulation by analyzing current data schema mapping and identifying requirements while maintaining LINEAR structure.

JSON STRUCTURE REQUIRED:

{
  "database_id": "allergy_1",
  "iteration": 2,
  "business_context": "Updated realistic business scenario description that supports linear optimization",
  "optimization_problem_description": "Refined description of LINEAR optimization problem", 
  "optimization_formulation": {
    "objective": "refined linear minimize/maximize with mathematical precision (sum of weighted variables only)",
    "decision_variables": "clearly defined controllable linear variables (continuous or integer)",
    "constraints": "mathematically precise LINEAR constraint definitions (no variable products or divisions) - maintain 2 to 20 constraints"
  },
  
  "current_optimization_to_schema_mapping": {
    "objective_coefficients": {
      "coefficient_name[indices]": {
        "currently_mapped_to": "table.column OR business_configuration_logic.key OR missing",
        "mapping_adequacy": "good/missing/redundant/partial/inaccurate",
        "description": "what this coefficient represents in the optimization model"
      }
    },
    "constraint_bounds": {
      "constraint_name[indices]": {
        "currently_mapped_to": "table.column OR business_configuration_logic.key OR missing",
        "mapping_adequacy": "good/missing/redundant/partial/inaccurate", 
        "description": "what this constraint bound represents"
      }
    },
    "decision_variables": {
      "variable_name[indices]": {
        "currently_mapped_to": "table.column OR business_configuration_logic.key OR missing",
        "mapping_adequacy": "good/missing/redundant/partial/inaccurate",
        "description": "what this decision variable represents",
        "variable_type": "continuous/integer/binary"
      }
    }
  },
  
  "missing_optimization_requirements": [
    "List what data/parameters are still needed for linear formulation (should be [] if all mappings are good)"
  ],
  
  "iteration_status": {
    "complete": true/false based on linear formulation completeness,
    "confidence": "updated confidence level",
    "next_focus": "What needs refinement for linear optimization OR 'Ready for convergence'"
  }
}

Response:
{
  "database_id": "allergy_1",
  "iteration": 2,
  "business_context": "A university aims to optimize the assignment of students to dormitories by minimizing the number of students with allergies assigned to non-allergy-friendly dormitories, considering dormitory capacities.",
  "optimization_problem_description": "The university needs to assign students to dormitories such that the number of students with allergies assigned to non-allergy-friendly dormitories is minimized, while respecting dormitory capacities and ensuring each student is assigned to exactly one dormitory.",
  "optimization_formulation": {
    "objective": "minimize sum(allergy_penalty.penalty_value * student_dormitory_assignment.assignment)",
    "decision_variables": "student_dormitory_assignment.assignment[student_id, dormitory_id] as binary variables",
    "constraints": [
      "sum(student_dormitory_assignment.assignment[student_id, dormitory_id]) = 1 for each student_id",
      "sum(student_dormitory_assignment.assignment[student_id, dormitory_id]) <= dormitory_capacity.capacity for each dormitory_id",
      "student_dormitory_assignment.assignment[student_id, dormitory_id] = 0 if dormitory_allergy_friendly.is_allergy_friendly = false and student has allergies"
    ]
  },
  "current_optimization_to_schema_mapping": {
    "objective_coefficients": {
      "penalty_value[student_id, dormitory_id]": {
        "currently_mapped_to": "allergy_penalty.penalty_value",
        "mapping_adequacy": "good",
        "description": "Penalty for assigning a student with allergies to a non-allergy-friendly dormitory"
      }
    },
    "constraint_bounds": {
      "capacity[dormitory_id]": {
        "currently_mapped_to": "dormitory_capacity.capacity",
        "mapping_adequacy": "good",
        "description": "Maximum number of students a dormitory can accommodate"
      }
    },
    "decision_variables": {
      "assignment[student_id, dormitory_id]": {
        "currently_mapped_to": "student_dormitory_assignment.assignment",
        "mapping_adequacy": "good",
        "description": "Binary variable indicating if a student is assigned to a dormitory",
        "variable_type": "binary"
      }
    }
  },
  "missing_optimization_requirements": [],
  "iteration_status": {
    "complete": true,
    "confidence": "high",
    "next_focus": "Ready for convergence"
  }
}
