examples/basic_sampling.py

# Example usage
from crag_sampler import CragSampler
import json
import os


def run_crag_task_1_and_2(
    file_path: str,
    fields_to_extract: list[str] = None,
    n_subsamples: int = 5,
    output_dir: str = None,
    compress: bool = True,
    n_processes: int = None,
    overwrite: bool = False,
):
    """Run the CRAG sampling pipeline for tasks 1 and 2.

    Args:
        file_path: Path to input JSONL file
        fields_to_extract: List of fields to extract from JSONL
        n_subsamples: Number of subsamples to create
        output_dir: Directory for output files
        compress: Whether to compress output files
        n_processes: Number of processes for parallel processing
        overwrite: Whether to overwrite existing files
    """
    # Initialize sampler
    sampler = CragSampler(
        input_file=file_path, required_fields=fields_to_extract, use_cache=True
    )

    # Create output path for subsamples
    output_path = os.path.join(
        os.path.dirname(file_path),
        f"{os.path.splitext(os.path.basename(file_path))[0]}_subsamples.json",
    )

    # Create subsamples
    subsamples_data = sampler.create_subsamples(
        n_subsamples=n_subsamples, output_path=output_path
    )

    # Print statistics
    print(f"Created {subsamples_data['metadata']['n_subsamples']} subsamples")
    print("\nGlobal statistics:")
    print(json.dumps(subsamples_data["metadata"]["global_statistics"], indent=2))
    print("\nFirst subsample statistics:")
    print(json.dumps(subsamples_data["subsamples"][0]["statistics"], indent=2))

    # Write subsamples to files
    sampler.write_subsamples(
        subsamples_file=output_path,
        output_dir=output_dir,
        compress=compress,
        n_processes=n_processes,
        overwrite=overwrite,
    )


# Example usage
if __name__ == "__main__":
    file_path = "./local_data/crag_task_1_and_2_dev_v4.jsonl.bz2"
    fields_to_extract = ["domain", "answer", "question_type", "static_or_dynamic"]

    run_crag_task_1_and_2(file_path, fields_to_extract)