Initial commit
This commit is contained in:
13
verl/utils/reward_score/__init__.py
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13
verl/utils/reward_score/__init__.py
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# Copyright 2024 Bytedance Ltd. and/or its affiliates
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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111
verl/utils/reward_score/countdown.py
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111
verl/utils/reward_score/countdown.py
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import re
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import random
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import ast
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import operator
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def extract_solution(solution_str):
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"""Extract the equation from the solution string."""
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# Remove everything before the first "Assistant:"
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if "Assistant:" in solution_str:
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solution_str = solution_str.split("Assistant:", 1)[1]
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elif "<|im_start|>assistant" in solution_str:
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solution_str = solution_str.split("<|im_start|>assistant", 1)[1]
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else:
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return None
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solution_str = solution_str.split('\n')[-1]
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answer_pattern = r'<answer>(.*?)</answer>'
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match = re.finditer(answer_pattern, solution_str)
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matches = list(match)
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if matches:
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final_answer = matches[-1].group(1).strip()
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else:
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final_answer = None
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return final_answer
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def validate_equation(equation_str, available_numbers):
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"""Validate that equation only uses available numbers and each number once."""
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try:
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# Extract all numbers from the equation
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numbers_in_eq = [int(n) for n in re.findall(r'\d+', equation_str)]
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# Check if all numbers in equation are available
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available_numbers = sorted(available_numbers)
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numbers_in_eq = sorted(numbers_in_eq)
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# Each number should be used exactly once
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return numbers_in_eq == available_numbers
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except:
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return False
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def evaluate_equation(equation_str):
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"""Safely evaluate the arithmetic equation using eval() with precautions."""
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try:
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# Define a regex pattern that only allows numbers, operators, parentheses, and whitespace
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allowed_pattern = r'^[\d+\-*/().\s]+$'
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if not re.match(allowed_pattern, equation_str):
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raise ValueError("Invalid characters in equation.")
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# Evaluate the equation with restricted globals and locals
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result = eval(equation_str, {"__builtins__": None}, {})
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return result
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except Exception as e:
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return None
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def compute_score(solution_str, ground_truth, method='strict', format_score=0.1, score=1.):
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"""The scoring function for countdown task.
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Args:
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solution_str: the solution text
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ground_truth: dictionary containing target number and available numbers
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method: the method to extract the solution
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format_score: the score for correct format but wrong answer
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score: the score for the correct answer
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"""
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target = ground_truth['target']
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numbers = ground_truth['numbers']
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equation = extract_solution(solution_str=solution_str)
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do_print = random.randint(1, 64) == 1
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if do_print:
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print(f"--------------------------------")
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print(f"Target: {target} | Numbers: {numbers}")
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print(f"Extracted equation: {equation}")
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print(f"Solution string: {solution_str}")
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if equation is None:
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if do_print:
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print(f"No equation found")
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return 0
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# Validate equation uses correct numbers
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if not validate_equation(equation, numbers):
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if do_print:
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print(f"Invalid equation")
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return format_score
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# Evaluate equation
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try:
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result = evaluate_equation(equation)
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if result is None:
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if do_print:
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print(f"Could not evaluate equation")
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return format_score
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if abs(result - target) < 1e-5: # Account for floating point precision
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if do_print:
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print(f"Correct equation: {equation} = {result}")
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return score
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else:
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if do_print:
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print(f"Wrong result: equation = {result}, target = {target}")
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return format_score
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except:
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if do_print:
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print(f"Error evaluating equation")
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return format_score
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63
verl/utils/reward_score/gsm8k.py
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63
verl/utils/reward_score/gsm8k.py
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# Copyright 2024 Bytedance Ltd. and/or its affiliates
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import re
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def extract_solution(solution_str, method='strict'):
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assert method in ['strict', 'flexible']
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if method == 'strict':
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# this also tests the formatting of the model
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solution = re.search("#### (\\-?[0-9\\.\\,]+)", solution_str)
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if solution is None:
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final_answer = None
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else:
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final_answer = solution.group(0)
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final_answer = final_answer.split('#### ')[1].replace(',', '').replace('$', '')
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elif method == 'flexible':
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answer = re.findall("(\\-?[0-9\\.\\,]+)", solution_str)
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final_answer = None
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if len(answer) == 0:
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# no reward is there is no answer
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pass
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else:
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invalid_str = ['', '.']
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# find the last number that is not '.'
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for final_answer in reversed(answer):
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if final_answer not in invalid_str:
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break
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return final_answer
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def compute_score(solution_str, ground_truth, method='strict', format_score=0., score=1.):
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"""The scoring function for GSM8k.
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Reference: Trung, Luong, et al. "Reft: Reasoning with reinforced fine-tuning." Proceedings of the 62nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers). 2024.
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Args:
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solution_str: the solution text
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ground_truth: the ground truth
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method: the method to extract the solution, choices are 'strict' and 'flexible'
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format_score: the score for the format
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score: the score for the correct answer
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"""
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answer = extract_solution(solution_str=solution_str, method=method)
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if answer is None:
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return 0
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else:
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if answer == ground_truth:
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return score
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else:
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return format_score
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227
verl/utils/reward_score/math.py
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227
verl/utils/reward_score/math.py
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@@ -0,0 +1,227 @@
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# Copyright 2024 Bytedance Ltd. and/or its affiliates
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# Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved.
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Adapted from https://github.com/EleutherAI/lm-evaluation-harness/blob/main/lm_eval/tasks/hendrycks_math/utils.py
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def compute_score(solution_str, ground_truth) -> float:
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retval = 0.
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try:
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string_in_last_boxed = last_boxed_only_string(solution_str)
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if string_in_last_boxed is not None:
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answer = remove_boxed(string_in_last_boxed)
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if is_equiv(answer, ground_truth):
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retval = 1.
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except Exception as e:
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print(e)
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return retval
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# string normalization from https://github.com/EleutherAI/lm-evaluation-harness/blob/master/lm_eval/tasks/hendrycks_math.py
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def is_equiv(str1, str2, verbose=False):
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if str1 is None and str2 is None:
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print("WARNING: Both None")
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return True
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if str1 is None or str2 is None:
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return False
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try:
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ss1 = strip_string(str1)
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ss2 = strip_string(str2)
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if verbose:
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print(ss1, ss2)
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return ss1 == ss2
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except Exception:
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return str1 == str2
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def remove_boxed(s):
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if "\\boxed " in s:
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left = "\\boxed "
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assert s[:len(left)] == left
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return s[len(left):]
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left = "\\boxed{"
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assert s[:len(left)] == left
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assert s[-1] == "}"
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return s[len(left):-1]
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def last_boxed_only_string(string):
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idx = string.rfind("\\boxed")
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if "\\boxed " in string:
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return "\\boxed " + string.split("\\boxed ")[-1].split("$")[0]
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if idx < 0:
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idx = string.rfind("\\fbox")
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if idx < 0:
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return None
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i = idx
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right_brace_idx = None
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num_left_braces_open = 0
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while i < len(string):
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if string[i] == "{":
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num_left_braces_open += 1
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if string[i] == "}":
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num_left_braces_open -= 1
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if num_left_braces_open == 0:
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right_brace_idx = i
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break
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i += 1
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if right_brace_idx is None:
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retval = None
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else:
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retval = string[idx:right_brace_idx + 1]
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return retval
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def fix_fracs(string):
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substrs = string.split("\\frac")
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new_str = substrs[0]
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if len(substrs) > 1:
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substrs = substrs[1:]
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for substr in substrs:
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new_str += "\\frac"
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if substr[0] == "{":
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new_str += substr
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else:
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try:
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assert len(substr) >= 2
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except AssertionError:
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return string
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a = substr[0]
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b = substr[1]
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if b != "{":
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if len(substr) > 2:
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post_substr = substr[2:]
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new_str += "{" + a + "}{" + b + "}" + post_substr
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else:
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new_str += "{" + a + "}{" + b + "}"
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else:
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if len(substr) > 2:
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post_substr = substr[2:]
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new_str += "{" + a + "}" + b + post_substr
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else:
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new_str += "{" + a + "}" + b
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string = new_str
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return string
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def fix_a_slash_b(string):
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if len(string.split("/")) != 2:
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return string
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a = string.split("/")[0]
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b = string.split("/")[1]
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try:
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a = int(a)
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b = int(b)
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assert string == "{}/{}".format(a, b)
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new_string = "\\frac{" + str(a) + "}{" + str(b) + "}"
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return new_string
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except AssertionError:
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return string
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def remove_right_units(string):
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# "\\text{ " only ever occurs (at least in the val set) when describing units
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if "\\text{ " in string:
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splits = string.split("\\text{ ")
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assert len(splits) == 2
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return splits[0]
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else:
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return string
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def fix_sqrt(string):
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if "\\sqrt" not in string:
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return string
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splits = string.split("\\sqrt")
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new_string = splits[0]
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for split in splits[1:]:
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if split[0] != "{":
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a = split[0]
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new_substr = "\\sqrt{" + a + "}" + split[1:]
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else:
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new_substr = "\\sqrt" + split
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new_string += new_substr
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return new_string
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def strip_string(string):
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# linebreaks
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string = string.replace("\n", "")
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# remove inverse spaces
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string = string.replace("\\!", "")
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# replace \\ with \
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string = string.replace("\\\\", "\\")
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# replace tfrac and dfrac with frac
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string = string.replace("tfrac", "frac")
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string = string.replace("dfrac", "frac")
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# remove \left and \right
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string = string.replace("\\left", "")
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string = string.replace("\\right", "")
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# Remove circ (degrees)
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string = string.replace("^{\\circ}", "")
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string = string.replace("^\\circ", "")
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# remove dollar signs
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string = string.replace("\\$", "")
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# remove units (on the right)
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string = remove_right_units(string)
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# remove percentage
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string = string.replace("\\%", "")
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string = string.replace("\%", "") # noqa: W605
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# " 0." equivalent to " ." and "{0." equivalent to "{." Alternatively, add "0" if "." is the start of the string
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string = string.replace(" .", " 0.")
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string = string.replace("{.", "{0.")
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# if empty, return empty string
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if len(string) == 0:
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return string
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if string[0] == ".":
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string = "0" + string
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# to consider: get rid of e.g. "k = " or "q = " at beginning
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if len(string.split("=")) == 2:
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if len(string.split("=")[0]) <= 2:
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string = string.split("=")[1]
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# fix sqrt3 --> sqrt{3}
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string = fix_sqrt(string)
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# remove spaces
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string = string.replace(" ", "")
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# \frac1b or \frac12 --> \frac{1}{b} and \frac{1}{2}, etc. Even works with \frac1{72} (but not \frac{72}1). Also does a/b --> \\frac{a}{b}
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string = fix_fracs(string)
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# manually change 0.5 --> \frac{1}{2}
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if string == "0.5":
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string = "\\frac{1}{2}"
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# NOTE: X/Y changed to \frac{X}{Y} in dataset, but in simple cases fix in case the model output is X/Y
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string = fix_a_slash_b(string)
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return string
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58
verl/utils/reward_score/multiply.py
Normal file
58
verl/utils/reward_score/multiply.py
Normal file
@@ -0,0 +1,58 @@
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import re
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import random
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||||
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def extract_solution(solution_str):
|
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# Remove everything before the first "Assistant:"
|
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if "Assistant:" in solution_str:
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solution_str = solution_str.split("Assistant:", 1)[1]
|
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else:
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return None
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||||
|
||||
answer_pattern = r'<answer>(.*?)</answer>'
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match = re.finditer(answer_pattern, solution_str)
|
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matches = list(match)
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||||
if matches:
|
||||
final_answer = matches[-1].group(1).strip()
|
||||
else:
|
||||
final_answer = None
|
||||
if final_answer is not None:
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try:
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int_final_answer = int(final_answer)
|
||||
except ValueError:
|
||||
final_answer = None
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||||
return final_answer
|
||||
|
||||
|
||||
def compute_score(solution_str, ground_truth, method='strict', format_score=0.1, score=1.):
|
||||
"""The scoring function for GSM8k.
|
||||
|
||||
Reference: Trung, Luong, et al. "Reft: Reasoning with reinforced fine-tuning." Proceedings of the 62nd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers). 2024.
|
||||
|
||||
Args:
|
||||
solution_str: the solution text
|
||||
ground_truth: the ground truth
|
||||
method: the method to extract the solution, choices are 'strict' and 'flexible'
|
||||
format_score: the score for the format
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||||
score: the score for the correct answer
|
||||
"""
|
||||
answer = extract_solution(solution_str=solution_str)
|
||||
do_print = random.randint(1, 64) == 1
|
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if do_print:
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print(f"--------------------------------")
|
||||
print(f"Ground truth: {ground_truth} | Extracted answer: {answer}")
|
||||
print(f"Solution string: {solution_str}")
|
||||
|
||||
if answer is None:
|
||||
if do_print:
|
||||
print(f"No answer found")
|
||||
return 0
|
||||
else:
|
||||
if int(answer) == int(ground_truth):
|
||||
if do_print:
|
||||
print(f"Correct answer: {answer}")
|
||||
return score
|
||||
else:
|
||||
if do_print:
|
||||
print(f"Incorrect answer {answer} | Ground truth: {ground_truth}")
|
||||
return format_score
|
||||
138
verl/utils/reward_score/qa_em.py
Normal file
138
verl/utils/reward_score/qa_em.py
Normal file
@@ -0,0 +1,138 @@
|
||||
# Copyright 2024 Bytedance Ltd. and/or its affiliates
|
||||
#
|
||||
# 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
|
||||
# limitations under the License.
|
||||
|
||||
import re
|
||||
import string
|
||||
import random
|
||||
|
||||
def normalize_answer(s):
|
||||
def remove_articles(text):
|
||||
return re.sub(r"\b(a|an|the)\b", " ", text)
|
||||
|
||||
def white_space_fix(text):
|
||||
return " ".join(text.split())
|
||||
|
||||
def remove_punc(text):
|
||||
exclude = set(string.punctuation)
|
||||
return "".join(ch for ch in text if ch not in exclude)
|
||||
|
||||
def lower(text):
|
||||
return text.lower()
|
||||
|
||||
return white_space_fix(remove_articles(remove_punc(lower(s))))
|
||||
|
||||
|
||||
def em_check(prediction, golden_answers):
|
||||
if isinstance(golden_answers, str):
|
||||
golden_answers = [golden_answers]
|
||||
normalized_prediction = normalize_answer(prediction)
|
||||
score = 0
|
||||
for golden_answer in golden_answers:
|
||||
golden_answer = normalize_answer(golden_answer)
|
||||
if golden_answer == normalized_prediction:
|
||||
score = 1
|
||||
break
|
||||
return score
|
||||
|
||||
|
||||
def subem_check(prediction, golden_answers):
|
||||
if isinstance(golden_answers, str):
|
||||
golden_answers = [golden_answers]
|
||||
normalized_prediction = normalize_answer(prediction)
|
||||
score = 0
|
||||
for golden_answer in golden_answers:
|
||||
golden_answer = normalize_answer(golden_answer)
|
||||
if golden_answer in normalized_prediction:
|
||||
score = 1
|
||||
break
|
||||
return score
|
||||
|
||||
|
||||
def extract_solution(solution_str):
|
||||
"""Extract the equation from the solution string."""
|
||||
# Remove everything before the first "Assistant:"
|
||||
# if "Assistant:" in solution_str:
|
||||
# solution_str = solution_str.split("Assistant:", 1)[1]
|
||||
# elif "<|im_start|>assistant" in solution_str:
|
||||
# solution_str = solution_str.split("<|im_start|>assistant", 1)[1]
|
||||
# else:
|
||||
# return None
|
||||
# solution_str = solution_str.split('\n')[-1]
|
||||
|
||||
answer_pattern = r'<answer>(.*?)</answer>'
|
||||
match = re.finditer(answer_pattern, solution_str, re.DOTALL)
|
||||
matches = list(match)
|
||||
|
||||
# If there are 0 or exactly 1 matches, return None
|
||||
if len(matches) <= 1:
|
||||
return None
|
||||
|
||||
# If there are 2 or more matches, return the last one
|
||||
return matches[-1].group(1).strip()
|
||||
|
||||
|
||||
def compute_score_em(solution_str, ground_truth, method='strict', format_score=0., score=1.):
|
||||
"""The scoring function for exact match (EM).
|
||||
|
||||
Args:
|
||||
solution_str: the solution text
|
||||
ground_truth: the ground truth
|
||||
method: the method to extract the solution, choices are 'strict' and 'flexible'
|
||||
format_score: the score for the format
|
||||
score: the score for the correct answer
|
||||
"""
|
||||
answer = extract_solution(solution_str=solution_str)
|
||||
do_print = random.randint(1, 64) == 1
|
||||
|
||||
if do_print:
|
||||
print(f"--------------------------------")
|
||||
print(f"Golden answers: {ground_truth['target']}")
|
||||
print(f"Extracted answer: {answer}")
|
||||
print(f"Solution string: {solution_str}")
|
||||
|
||||
if answer is None:
|
||||
return 0
|
||||
else:
|
||||
if em_check(answer, ground_truth['target']):
|
||||
return score
|
||||
else:
|
||||
return format_score
|
||||
|
||||
|
||||
def compute_score_subem(solution_str, ground_truth, method='strict', format_score=0., score=1.):
|
||||
"""The scoring function for substring exact match (EM).
|
||||
|
||||
Args:
|
||||
solution_str: the solution text
|
||||
ground_truth: the ground truth
|
||||
method: the method to extract the solution, choices are 'strict' and 'flexible'
|
||||
format_score: the score for the format
|
||||
score: the score for the correct answer
|
||||
"""
|
||||
answer = extract_solution(solution_str=solution_str)
|
||||
do_print = random.randint(1, 64) == 1
|
||||
|
||||
if do_print:
|
||||
print(f"--------------------------------")
|
||||
print(f"Golden answers: {ground_truth['target']}")
|
||||
print(f"Extracted answer: {answer}")
|
||||
print(f"Solution string: {solution_str}")
|
||||
|
||||
if answer is None:
|
||||
return 0
|
||||
else:
|
||||
if subem_check(answer, ground_truth['target']):
|
||||
return score
|
||||
else:
|
||||
return format_score
|
||||
Reference in New Issue
Block a user