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https://github.com/open-thought/reasoning-gym.git
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86 lines
2.7 KiB
Python
86 lines
2.7 KiB
Python
"""Word reversal task generator"""
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from dataclasses import dataclass
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import re
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from random import Random
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from typing import List, Optional
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from reasoning_gym.data import read_data_file
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@dataclass
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class WordReversalConfig:
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"""Configuration for word reversal task generation"""
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min_words: int = 3 # Minimum words in list
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max_words: int = 8 # Maximum words in list
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seed: Optional[int] = None
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size: int = 500 # Virtual dataset size
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def validate(self):
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"""Validate configuration parameters"""
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assert self.min_words > 0, "min_words must be positive"
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assert self.max_words >= self.min_words, "max_words must be >= min_words"
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class WordReversalDataset:
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"""Generates word reversal tasks from text spans"""
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def __init__(self, config: WordReversalConfig):
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self.config = config
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self.config.validate()
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self.seed = config.seed if config.seed is not None else Random().randint(0, 2**32)
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# Load and preprocess text
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text = read_data_file("in_the_year_2889.txt")
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# Extract words and clean them to contain only alphanumeric characters
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self.words = [word for word in re.findall(r'\b\w+\b', text) if word.isalnum()]
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def __len__(self) -> int:
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return self.config.size
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def __iter__(self):
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self._current_idx = 0
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return self
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def __next__(self):
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if self._current_idx >= self.config.size:
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raise StopIteration
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item = self[self._current_idx]
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self._current_idx += 1
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return item
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def __getitem__(self, idx: int) -> dict:
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"""Generate a single word reversal task"""
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rng = Random(self.seed + idx)
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# Select random words
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num_words = rng.randint(self.config.min_words, self.config.max_words)
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word_indices = rng.sample(range(len(self.words)), num_words)
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words = [self.words[i] for i in word_indices]
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# Create question and answer
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question = ", ".join(words)
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answer = ", ".join(reversed(words))
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return {
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"question": f"Reverse this list of words: {question}",
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"answer": answer,
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"metadata": {
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"num_words": num_words,
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"words": words
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}
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}
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def word_reversal_dataset(
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min_words: int = 3,
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max_words: int = 8,
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seed: Optional[int] = None,
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size: int = 500,
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) -> WordReversalDataset:
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"""Create a WordReversalDataset with the given configuration."""
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config = WordReversalConfig(
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min_words=min_words,
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max_words=max_words,
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seed=seed,
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size=size,
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)
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return WordReversalDataset(config)
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