math.py

# Copyright (c) 2025, NVIDIA CORPORATION.  All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
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"""Math dataset and its variants."""

from typing import Any, Literal, Optional

from datasets import load_dataset

from nemo_rl.data import processors
from nemo_rl.data.interfaces import TaskDataSpec


class MathDataset:
    def __init__(
        self,
        variant: Literal["math_test", "math_500_test"] = "math_test",
        prompt_file: Optional[str] = None,
        system_prompt_file: Optional[str] = None,
    ):
        ds = load_dataset(
            "csv",
            data_files=f"https://openaipublic.blob.core.windows.net/simple-evals/{variant}.csv",
            split="train",
        )
        self.rekeyed_ds = ds.map(self._rekey, remove_columns=ds.column_names)
        self.task_spec = TaskDataSpec(
            task_name=f"{variant}",
            prompt_file=prompt_file,
            system_prompt_file=system_prompt_file,
        )
        self.processor = processors.math_data_processor

    def _rekey(self, data: dict[str, Any]):
        return {
            "problem": data["Question"],
            "expected_answer": data["Answer"],
        }