File size: 4,870 Bytes
06c7e2f
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
"""Example of a custom task with automatic discovery."""

from ..base_task import BaseTask, TaskConfig
import re
from typing import List, Dict


class MathTask(BaseTask):
    """A task for simple math problems."""
    
    TASK_NAME = "math"  # This is all that's needed for automatic registration!
    
    def __init__(self, config: TaskConfig):
        super().__init__(config)
    
    def _load_data(self):
        """Generate synthetic math problems for testing."""
        import pandas as pd
        import random
        
        random.seed(42)  # For reproducibility
        problems = []
        
        # Generate 20 simple arithmetic problems
        for _ in range(20):
            a, b = random.randint(1, 20), random.randint(1, 20)
            op = random.choice(['+', '-', '*'])
            
            if op == '+':
                answer = a + b
            elif op == '-':
                answer = a - b
            else:  # multiplication
                answer = a * b
            
            problems.append({
                self.config.input_column: f"{a} {op} {b}",
                self.config.output_column: str(answer)
            })
        
        self.data = pd.DataFrame(problems)

    
    def get_icl_examples(self, num_examples: int = 10, shuffle: bool = True, seed: int = None, fresh: bool = True) -> List[Dict[str, str]]:
        """Generate simple arithmetic examples for ICL.

        Note: `fresh` is ignored for synthetic/generated tasks (there's no stable dataset indices to track).
        """
        import random
        if seed is not None:
            random.seed(seed)

        examples = []
        for _ in range(num_examples):
            a, b = random.randint(1, 10), random.randint(1, 10)
            examples.append({"input": f"{a} + {b}", "output": str(a + b)})

        if shuffle:
            # shuffle in-place for diversity
            random.shuffle(examples)

        return examples[:num_examples]
    
    def evaluate(self, predictions: List[str], split: str = "test", **kwargs) -> Dict[str, float]:
        """Evaluate math predictions."""
        correct = 0
        total = len(predictions)
        
        if total == 0:
            return {"accuracy": 0.0}
        
        # Get the targets for this split
        data_split = self.data if split == "test" else self.data  # For now, use same data
        targets = data_split[self.config.output_column].tolist()
        
        if len(predictions) != len(targets):
            raise ValueError(f"Number of predictions ({len(predictions)}) doesn't match targets ({len(targets)})")
        
        detailed_results = []
        for pred, target in zip(predictions, targets):
            result = self.evaluate_response(pred, str(target))
            if result["correct"]:
                correct += 1
            detailed_results.append(result)
        
        accuracy = correct / total
        return {
            "accuracy": accuracy,
            "correct_count": correct,
            "total_count": total,
            "detailed_results": detailed_results
        }
    
    def evaluate_response(self, response: str, target: str) -> dict:
        """Evaluate a math response with number extraction."""
        
        def extract_number(text: str) -> float:
            """Extract the first number from text."""
            # Look for numbers (including decimals)
            match = re.search(r'-?\d+\.?\d*', text.strip())
            if match:
                return float(match.group())
            return None
        
        response_num = extract_number(response)
        target_num = extract_number(target)
        
        if response_num is None or target_num is None:
            return {
                "correct": False,
                "error": "Could not extract numbers",
                "response_extracted": response_num,
                "target_extracted": target_num
            }
        
        # Check if they're equal (with small tolerance for floating point)
        correct = abs(response_num - target_num) < 0.001
        
        return {
            "correct": correct,
            "response_extracted": response_num,
            "target_extracted": target_num,
            "original_response": response,
            "original_target": target
        }
    
    def generate_prompt(self, row: dict, demonstrations: list = None) -> str:
        """Generate a prompt for math problems."""
        prompt = "Solve the following math problem:\n\n"
        
        if demonstrations:
            prompt += "Here are some examples:\n"
            for demo in demonstrations:
                prompt += f"Problem: {demo['input']}\nAnswer: {demo['target']}\n\n"
            prompt += "Now solve this problem:\n"
        
        prompt += f"Problem: {row[self.config.input_column]}\nAnswer:"
        return prompt