atropos/environments/eval_environments/vision_evals/dynamath_environment.py
2026-01-23 00:49:51 +00:00

249 lines
9 KiB
Python

"""DynaMath evaluation environment."""
import asyncio
import base64
import io
import json
import re
from string import ascii_uppercase
from typing import List, Optional, Tuple
import numpy as np
from datasets import load_dataset
from environments.eval_environments.eval import EvalBase, eval_runner
from PIL import Image
from atroposlib.envs.server_handling.server_manager import ServerManager
class DynaMath(EvalBase):
"""DynaMath evaluation - dynamic mathematical reasoning benchmark."""
GUIDE = """
## Answer Instruction
Please provide an answer to the question outlined above. Your response should adhere to the following JSON format, which includes two keys: 'solution' and 'short answer'. The 'solution' key can contain detailed steps needed to solve the question, and the 'short answer' key should provide a concise response. {INST}
Example of expected JSON response format:
{{
"solution": "[Detailed step-by-step explanation]",
"short answer": "[Concise Answer]"
}}
"""
def setup_data(self) -> list:
# DynaMath_Sample uses variant splits: sample_variant1, sample_variant2, etc.
split = getattr(self, "split", "sample_variant1")
try:
# DynaMath_Sample is the publicly available dataset
dataset = load_dataset("DynaMath/DynaMath_Sample", split=split)
print(f"Loaded {len(dataset)} examples from DynaMath ({split})")
return list(dataset)
except Exception as e:
print(f"Warning: Could not load DynaMath: {e}")
try:
# Try sample_variant1 explicitly
dataset = load_dataset(
"DynaMath/DynaMath_Sample", split="sample_variant1"
)
print(f"Loaded {len(dataset)} examples from DynaMath (sample_variant1)")
return list(dataset)
except Exception:
try:
dataset = load_dataset("lmms-lab/DynaMath", split="test")
print(f"Loaded {len(dataset)} examples from DynaMath (test)")
return list(dataset)
except Exception:
raise ValueError(f"Could not load DynaMath dataset: {e}")
def encode_image(self, pil_image: Image.Image) -> str:
buffer = io.BytesIO()
pil_image.save(buffer, format="PNG")
return base64.b64encode(buffer.getvalue()).decode("utf-8")
def get_image_base64(self, item: dict) -> Optional[str]:
for key in ["image", "decoded_image"]:
if key in item and item[key] is not None:
if isinstance(item[key], Image.Image):
return self.encode_image(item[key])
return None
def build_messages(self, item: dict) -> List[dict]:
image_base64 = self.get_image_base64(item)
question = item.get("question", "")
answer_type = item.get("answer_type", "free_form")
use_json_format = getattr(self, "use_json_format", True)
if use_json_format:
if answer_type == "multiple choice":
inst = "Provide the corresponding choice option in the 'short answer' key, such as 'A', 'B', 'C', or 'D'."
elif answer_type == "float":
inst = "Format the answer as a three-digit floating-point number and provide it in the 'short answer' key."
else:
inst = "Float numbers in the answer should be formatted as three-digit floating-point numbers."
prompt = f"## Question\n{question}" + self.GUIDE.format(INST=inst)
else:
prompt = question
content = []
if image_base64:
content.append(
{
"type": "image_url",
"image_url": {"url": f"data:image/png;base64,{image_base64}"},
}
)
content.append({"type": "text", "text": prompt})
return [{"role": "user", "content": content}]
def preprocess_response(self, response: str) -> str:
"""Preprocess response to extract JSON."""
response = str(response)
if 0 <= response.find("{") < response.rfind("}"):
response = response[response.find("{") : response.rfind("}") + 1]
response = response.replace("\\", "").replace("\\n", "\n")
return response
def transfer_pi(self, value: str) -> float:
"""Convert pi symbol to numeric value."""
if "\u03c0" in value:
parts = value.split("\u03c0")
return float(parts[0]) * np.pi
return float(value)
def parse_answer(self, answer: str, answer_type: str) -> Tuple[bool, Optional[str]]:
"""Parse answer based on type."""
if answer_type == "float":
if answer.isdigit():
return True, str(float(answer))
parts = answer.split(" ")
answer = parts[0]
try:
result = self.transfer_pi(answer)
return True, str(result)
except Exception:
return False, None
elif answer_type == "multiple choice":
if len(answer) == 1 and answer.upper() in ascii_uppercase[:5]:
return True, answer.upper()
# Check if any letter appears
for ch in ascii_uppercase[:5]:
if ch in answer.upper():
return True, ch
return False, None
else:
return True, answer
def extract_answer(
self, response: str, answer_type: str
) -> Tuple[bool, Optional[str]]:
"""Extract answer from response."""
processed = self.preprocess_response(response)
try:
dj = json.loads(processed, strict=False)
short_answer = dj.get("short answer")
if short_answer is not None:
return self.parse_answer(str(short_answer), answer_type)
except Exception:
pass
if answer_type == "multiple choice":
for ch in ascii_uppercase[:5]:
if response.strip().upper().startswith(ch):
return True, ch
for ch in ascii_uppercase[:5]:
if ch in response.upper()[:20]:
return True, ch
elif answer_type == "float":
numbers = re.findall(r"-?\d+\.?\d*", response)
if numbers:
try:
return True, str(float(numbers[0]))
except ValueError:
pass
return False, None
def score_answer(
self, extracted: Optional[str], answer: str, answer_type: str, parsed: bool
) -> bool:
"""Score the extracted answer against ground truth."""
if not parsed or extracted is None:
# Check if answer appears in raw response for MC
return False
if answer_type == "float":
try:
pred_val = float(extracted)
ans_val = float(answer)
return abs(pred_val - ans_val) <= 0.001
except (ValueError, TypeError):
return False
elif answer_type == "multiple choice":
return extracted.upper() == str(answer).upper()
else:
# Free form: substring match
return (
extracted.lower() in answer.lower()
or answer.lower() in extracted.lower()
)
async def run_item(
self, server: ServerManager, data_item: dict
) -> Tuple[dict, dict]:
try:
messages = self.build_messages(data_item)
completion = await self.chat_completion(server, messages)
if not completion.choices:
return {"accuracy": 0.0}, {"error": "Empty response"}
message = completion.choices[0].message
response = message.content or ""
if not response:
return {"accuracy": 0.0}, {"error": "Empty response"}
answer = data_item.get("ground_truth", data_item.get("answer", ""))
answer_type = data_item.get("answer_type", "free_form")
parsed, extracted = self.extract_answer(response, answer_type)
correct = self.score_answer(extracted, answer, answer_type, parsed)
sample = {
"id": data_item.get("index", data_item.get("id", "")),
"question": data_item.get("question", "")[:200],
"subject": data_item.get("subject", ""),
"knowledge_level": data_item.get("knowledge_level", ""),
"answer_type": answer_type,
"answer": answer,
"prediction": extracted,
"parsed": parsed,
"raw_response": response[:500],
"correct": correct,
}
return {"accuracy": 1.0 if correct else 0.0}, sample
except Exception as e:
return {"accuracy": 0.0}, {"error": str(e)}
if __name__ == "__main__":
asyncio.run(
eval_runner(
DynaMath(
split="test", use_json_format=True, temperature=0.0, max_tokens=1024
)
)
)