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- # Copyright (c) Opendatalab. All rights reserved.
- from loguru import logger
- from openai import OpenAI
- import json_repair
- from mineru.backend.pipeline.pipeline_middle_json_mkcontent import merge_para_with_text
- def llm_aided_title(page_info_list, title_aided_config):
- client = OpenAI(
- api_key=title_aided_config["api_key"],
- base_url=title_aided_config["base_url"],
- )
- title_dict = {}
- origin_title_list = []
- i = 0
- for page_info in page_info_list:
- blocks = page_info["para_blocks"]
- for block in blocks:
- if block["type"] == "title":
- origin_title_list.append(block)
- title_text = merge_para_with_text(block)
- page_line_height_list = []
- for line in block['lines']:
- bbox = line['bbox']
- page_line_height_list.append(int(bbox[3] - bbox[1]))
- if len(page_line_height_list) > 0:
- line_avg_height = sum(page_line_height_list) / len(page_line_height_list)
- else:
- line_avg_height = int(block['bbox'][3] - block['bbox'][1])
- title_dict[f"{i}"] = [title_text, line_avg_height, int(page_info['page_idx']) + 1]
- i += 1
- # logger.info(f"Title list: {title_dict}")
- title_optimize_prompt = f"""输入的内容是一篇文档中所有标题组成的字典,请根据以下指南优化标题的结果,使结果符合正常文档的层次结构:
- 1. 字典中每个value均为一个list,包含以下元素:
- - 标题文本
- - 文本行高是标题所在块的平均行高
- - 标题所在的页码
- 2. 保留原始内容:
- - 输入的字典中所有元素都是有效的,不能删除字典中的任何元素
- - 请务必保证输出的字典中元素的数量和输入的数量一致
- 3. 保持字典内key-value的对应关系不变
- 4. 优化层次结构:
- - 为每个标题元素添加适当的层次结构
- - 行高较大的标题一般是更高级别的标题
- - 标题从前至后的层级必须是连续的,不能跳过层级
- - 标题层级最多为4级,不要添加过多的层级
- - 优化后的标题只保留代表该标题的层级的整数,不要保留其他信息
- 5. 合理性检查与微调:
- - 在完成初步分级后,仔细检查分级结果的合理性
- - 根据上下文关系和逻辑顺序,对不合理的分级进行微调
- - 确保最终的分级结果符合文档的实际结构和逻辑
- - 字典中可能包含被误当成标题的正文,你可以通过将其层级标记为 0 来排除它们
- IMPORTANT:
- 请直接返回优化过的由标题层级组成的字典,格式为{{标题id:标题层级}},如下:
- {{
- 0:1,
- 1:2,
- 2:2,
- 3:3
- }}
- 不需要对字典格式化,不需要返回任何其他信息。
- Input title list:
- {title_dict}
- Corrected title list:
- """
- retry_count = 0
- max_retries = 3
- dict_completion = None
- while retry_count < max_retries:
- try:
- completion = client.chat.completions.create(
- model=title_aided_config["model"],
- messages=[
- {'role': 'user', 'content': title_optimize_prompt}],
- temperature=0.7,
- )
- content = completion.choices[0].message.content.strip()
- # logger.info(f"Title completion: {content}")
- if "</think>" in content:
- idx = content.index("</think>") + len("</think>")
- content = content[idx:].strip()
- dict_completion = json_repair.loads(content)
- dict_completion = {int(k): int(v) for k, v in dict_completion.items()}
- # logger.info(f"len(dict_completion): {len(dict_completion)}, len(title_dict): {len(title_dict)}")
- if len(dict_completion) == len(title_dict):
- for i, origin_title_block in enumerate(origin_title_list):
- origin_title_block["level"] = int(dict_completion[i])
- break
- else:
- logger.warning(
- "The number of titles in the optimized result is not equal to the number of titles in the input.")
- retry_count += 1
- except Exception as e:
- logger.exception(e)
- retry_count += 1
- if dict_completion is None:
- logger.error("Failed to decode dict after maximum retries.")
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