add engine and eval dataset

recipes/use_cases/prompt-migration/prompt_migration/engine.py

@@ -0,0 +1,68 @@
+import dspy
+from typing import List, Dict, Optional
+from dataclasses import dataclass
+
+@dataclass
+class PromptTemplate:
+    template: str
+    input_variables: List[str]
+    model_type: str  # 'openai' or 'llama'
+
+class PromptMigrationEngine:
+    def __init__(self, source_lm: dspy.OpenAI, target_lm: dspy.LM):
+        self.source_lm = source_lm
+        self.target_lm = target_lm
+        dspy.configure(lm=source_lm)
+    
+    def _optimize_transformation(self, transformer, eval_dataset):
+        """Optimize the transformation using the evaluation dataset."""
+        class AccuracyMetric:
+            def __call__(self, example, prediction, trace=None):
+                return float(prediction.target == example.expected_output)
+        
+        optimizer = dspy.BootstrapFewShotWithRandomSearch(
+            metric=AccuracyMetric(),
+            max_bootstrapped_demos=4,
+            max_labeled_demos=4,
+            num_threads=4
+        )
+        
+        train_data = [
+            dspy.Example(
+                source=item["text"],
+                expected_output=item["expected_summary"]
+            ).with_inputs("source") for item in eval_dataset
+        ]
+        
+        return optimizer.compile(transformer, trainset=train_data)
+    
+    def migrate_prompt(self, 
+                      source_prompt: PromptTemplate,
+                      eval_dataset: Optional[List[Dict]] = None) -> PromptTemplate:
+        """Migrates a prompt from source LM to target LM format."""
+        
+        class PromptTransformation(dspy.Signature):
+            """Convert a prompt from one format to another."""
+            source = dspy.InputField(desc="Source prompt template")
+            target = dspy.OutputField(desc="Transformed prompt template")
+        
+        class Transformer(dspy.Module):
+            def __init__(self):
+                super().__init__()
+                self.chain = dspy.ChainOfThought(PromptTransformation)
+            
+            def forward(self, source):
+                return self.chain(source=source)
+        
+        transformer = Transformer()
+        
+        if eval_dataset:
+            transformer = self._optimize_transformation(transformer, eval_dataset)
+            
+        result = transformer(source=source_prompt.template)
+        
+        return PromptTemplate(
+            template=result.target,
+            input_variables=source_prompt.input_variables,
+            model_type='llama'
+        ) 

recipes/use_cases/prompt-migration/prompt_migration/eval_dataset.py

@@ -0,0 +1,123 @@
+from typing import List, Dict
+
+def get_evaluation_dataset() -> List[Dict]:
+    """
+    Returns a comprehensive evaluation dataset for testing prompt migrations.
+    Each test case includes:
+    - text: Input text
+    - expected_summary: Expected output
+    - prompt_type: Type of prompt (summarization, classification, qa, etc.)
+    - complexity: Difficulty level (simple, medium, complex)
+    """
+    return [
+        # Summarization examples
+        {
+            "text": "The quick brown fox jumps over the lazy dog.",
+            "expected_summary": "A fox jumps over a dog.",
+            "prompt_type": "summarization",
+            "complexity": "simple"
+        },
+        {
+            "text": """Machine learning is a subset of artificial intelligence that focuses on developing 
+                   systems that can learn from and make decisions based on data. It has numerous 
+                   applications in various fields including healthcare, finance, and autonomous vehicles.""",
+            "expected_summary": "Machine learning is an AI technology that enables systems to learn and make decisions from data, used in healthcare, finance, and autonomous vehicles.",
+            "prompt_type": "summarization",
+            "complexity": "medium"
+        },
+
+        # Classification examples
+        {
+            "text": "I absolutely loved this product! Best purchase ever!",
+            "expected_summary": "Positive",
+            "prompt_type": "sentiment_classification",
+            "complexity": "simple"
+        },
+        {
+            "text": "The product works fine but the customer service could be better.",
+            "expected_summary": "Neutral",
+            "prompt_type": "sentiment_classification",
+            "complexity": "medium"
+        },
+
+        # Question-Answering examples
+        {
+            "text": "What is the capital of France? Context: Paris is the capital and largest city of France.",
+            "expected_summary": "Paris",
+            "prompt_type": "qa",
+            "complexity": "simple"
+        },
+        {
+            "text": """What causes rain? Context: Rain is precipitation of liquid water in the form of droplets. 
+                   Water vapor in warm air rises and cools, forming clouds. When the droplets become too 
+                   heavy, they fall as rain.""",
+            "expected_summary": "Rain occurs when water vapor in warm air rises, cools to form clouds, and droplets become heavy enough to fall.",
+            "prompt_type": "qa",
+            "complexity": "medium"
+        },
+
+        # Code-related examples
+        {
+            "text": "Write a function to add two numbers in Python.",
+            "expected_summary": "def add(a, b):\n    return a + b",
+            "prompt_type": "code_generation",
+            "complexity": "simple"
+        },
+        {
+            "text": "Explain what this code does: for i in range(len(arr)): arr[i] *= 2",
+            "expected_summary": "This code multiplies each element in the array 'arr' by 2.",
+            "prompt_type": "code_explanation",
+            "complexity": "simple"
+        },
+
+        # Text transformation examples
+        {
+            "text": "convert this to passive voice: The cat chased the mouse.",
+            "expected_summary": "The mouse was chased by the cat.",
+            "prompt_type": "text_transformation",
+            "complexity": "simple"
+        },
+        {
+            "text": "translate to French: Hello, how are you?",
+            "expected_summary": "Bonjour, comment allez-vous?",
+            "prompt_type": "translation",
+            "complexity": "simple"
+        },
+
+        # Complex reasoning examples
+        {
+            "text": """A train leaves Station A at 2:00 PM traveling at 60 mph. Another train leaves 
+                   Station B at 3:00 PM traveling at 75 mph in the opposite direction. If the stations 
+                   are 375 miles apart, at what time will the trains meet?""",
+            "expected_summary": "The trains will meet at 5:00 PM.",
+            "prompt_type": "problem_solving",
+            "complexity": "complex"
+        },
+        {
+            "text": """Analyze the environmental impact of electric vehicles versus traditional 
+                   gasoline vehicles, considering manufacturing, operation, and disposal.""",
+            "expected_summary": """Electric vehicles typically have higher manufacturing emissions but lower 
+                              operational emissions compared to gasoline vehicles. Overall lifecycle 
+                              environmental impact depends on electricity source and battery recycling.""",
+            "prompt_type": "analysis",
+            "complexity": "complex"
+        }
+    ]
+
+def get_eval_subset(prompt_type: str = None, complexity: str = None) -> List[Dict]:
+    """
+    Returns a filtered subset of the evaluation dataset based on prompt type and/or complexity.
+    
+    Args:
+        prompt_type: Type of prompts to filter (e.g., 'summarization', 'qa', etc.)
+        complexity: Complexity level to filter (e.g., 'simple', 'medium', 'complex')
+    """
+    dataset = get_evaluation_dataset()
+    
+    if prompt_type:
+        dataset = [d for d in dataset if d["prompt_type"] == prompt_type]
+    
+    if complexity:
+        dataset = [d for d in dataset if d["complexity"] == complexity]
+    
+    return dataset