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This commit is contained in:
@@ -20,9 +20,7 @@ class ArxivFragment:
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segment_type: str
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title: str
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abstract: str
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section: str # 保存完整的section层级路径,如 "Introduction" 或 "Methods-Data Processing"
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section_type: str # 新增:标识片段类型,如 "abstract", "section", "subsection" 等
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section_level: int # 新增:section的层级深度,abstract为0,main section为1,subsection为2,等等
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section: str
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is_appendix: bool
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@@ -116,6 +114,100 @@ class SmartArxivSplitter:
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return result
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def _smart_split(self, content: str) -> List[Tuple[str, str, bool]]:
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"""智能分割TEX内容,确保在字符范围内并保持语义完整性"""
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content = self._preprocess_content(content)
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segments = []
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current_buffer = []
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current_length = 0
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current_section = "Unknown Section"
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is_appendix = False
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# 保护特殊环境
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protected_blocks = {}
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content = self._protect_special_environments(content, protected_blocks)
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# 按段落分割
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paragraphs = re.split(r'\n\s*\n', content)
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for para in paragraphs:
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para = para.strip()
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if not para:
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continue
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# 恢复特殊环境
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para = self._restore_special_environments(para, protected_blocks)
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# 更新章节信息
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section_info = self._get_section_info(para, content)
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if section_info:
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current_section, is_appendix = section_info
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# 判断是否是特殊环境
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if self._is_special_environment(para):
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# 处理当前缓冲区
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if current_buffer:
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segments.append((
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'\n'.join(current_buffer),
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current_section,
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is_appendix
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))
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current_buffer = []
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current_length = 0
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# 添加特殊环境作为独立片段
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segments.append((para, current_section, is_appendix))
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continue
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# 处理普通段落
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sentences = self._split_into_sentences(para)
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for sentence in sentences:
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sentence = sentence.strip()
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if not sentence:
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continue
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sent_length = len(sentence)
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new_length = current_length + sent_length + (1 if current_buffer else 0)
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if new_length <= self.max_chars:
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current_buffer.append(sentence)
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current_length = new_length
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else:
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# 如果当前缓冲区达到最小长度要求
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if current_length >= self.min_chars:
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segments.append((
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'\n'.join(current_buffer),
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current_section,
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is_appendix
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))
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current_buffer = [sentence]
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current_length = sent_length
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else:
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# 尝试将过长的句子分割
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split_sentences = self._split_long_sentence(sentence)
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for split_sent in split_sentences:
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if current_length + len(split_sent) <= self.max_chars:
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current_buffer.append(split_sent)
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current_length += len(split_sent) + 1
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else:
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segments.append((
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'\n'.join(current_buffer),
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current_section,
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is_appendix
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))
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current_buffer = [split_sent]
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current_length = len(split_sent)
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# 处理剩余的缓冲区
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if current_buffer:
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segments.append((
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'\n'.join(current_buffer),
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current_section,
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is_appendix
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))
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return segments
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def _split_into_sentences(self, text: str) -> List[str]:
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"""将文本分割成句子"""
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return re.split(r'(?<=[.!?。!?])\s+', text)
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@@ -194,7 +286,7 @@ class SmartArxivSplitter:
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content = re.sub(r'\\(label|ref|cite)\{[^}]*\}', '', content)
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return content.strip()
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def process_paper(self, arxiv_id_or_url: str) -> Generator[ArxivFragment, None, None]:
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def process(self, arxiv_id_or_url: str) -> Generator[ArxivFragment, None, None]:
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"""处理单篇arxiv论文"""
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try:
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arxiv_id = self._normalize_arxiv_id(arxiv_id_or_url)
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@@ -318,31 +410,16 @@ class SmartArxivSplitter:
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return title.strip(), abstract.strip()
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def _get_section_info(self, para: str, content: str) -> Optional[Tuple[str, str, int, bool]]:
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"""获取段落所属的章节信息,返回(section_path, section_type, level, is_appendix)"""
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current_path = []
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section_type = "content"
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level = 0
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def _get_section_info(self, para: str, content: str) -> Optional[Tuple[str, bool]]:
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"""获取段落所属的章节信息"""
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section = "Unknown Section"
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is_appendix = False
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# 定义section层级的正则模式
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section_patterns = {
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r'\\chapter\{([^}]+)\}': 1,
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r'\\section\{([^}]+)\}': 1,
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r'\\subsection\{([^}]+)\}': 2,
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r'\\subsubsection\{([^}]+)\}': 3
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}
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# 查找所有章节标记
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all_sections = []
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for pattern, sec_level in section_patterns.items():
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for pattern in self.section_patterns:
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for match in re.finditer(pattern, content):
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all_sections.append((match.start(), match.group(1), sec_level))
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# 检查是否是摘要
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abstract_match = re.search(r'\\begin{abstract}.*?' + re.escape(para), content, re.DOTALL)
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if abstract_match:
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return "Abstract", "abstract", 0, False
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all_sections.append((match.start(), match.group(2)))
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# 查找appendix标记
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appendix_pos = content.find(r'\appendix')
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@@ -350,118 +427,19 @@ class SmartArxivSplitter:
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# 确定当前章节
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para_pos = content.find(para)
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if para_pos >= 0:
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is_appendix = appendix_pos >= 0 and para_pos > appendix_pos
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current_sections = []
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current_level = 0
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# 按位置排序所有section标记
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for sec_pos, sec_title, sec_level in sorted(all_sections):
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current_section = None
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for sec_pos, sec_title in sorted(all_sections):
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if sec_pos > para_pos:
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break
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# 如果遇到更高层级的section,清除所有更低层级的section
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if sec_level <= current_level:
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current_sections = [s for s in current_sections if s[1] < sec_level]
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current_sections.append((sec_title, sec_level))
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current_level = sec_level
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current_section = sec_title
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# 构建section路径
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if current_sections:
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current_path = [s[0] for s in sorted(current_sections, key=lambda x: x[1])]
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section_path = "-".join(current_path)
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level = max(s[1] for s in current_sections)
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section_type = "section" if level == 1 else "subsection"
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return section_path, section_type, level, is_appendix
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if current_section:
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section = current_section
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is_appendix = appendix_pos >= 0 and para_pos > appendix_pos
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return "Unknown Section", "content", 0, is_appendix
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return section, is_appendix
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def _smart_split(self, content: str) -> List[Tuple[str, str, str, int, bool]]:
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"""智能分割TEX内容,确保在字符范围内并保持语义完整性"""
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content = self._preprocess_content(content)
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segments = []
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current_buffer = []
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current_length = 0
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current_section_info = ("Unknown Section", "content", 0, False)
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# 保护特殊环境
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protected_blocks = {}
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content = self._protect_special_environments(content, protected_blocks)
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# 按段落分割
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paragraphs = re.split(r'\n\s*\n', content)
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for para in paragraphs:
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para = para.strip()
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if not para:
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continue
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# 恢复特殊环境
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para = self._restore_special_environments(para, protected_blocks)
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# 更新章节信息
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section_info = self._get_section_info(para, content)
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if section_info:
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current_section_info = section_info
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# 判断是否是特殊环境
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if self._is_special_environment(para):
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# 处理当前缓冲区
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if current_buffer:
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segments.append((
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'\n'.join(current_buffer),
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*current_section_info
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))
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current_buffer = []
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current_length = 0
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# 添加特殊环境作为独立片段
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segments.append((para, *current_section_info))
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continue
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# 处理普通段落
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sentences = self._split_into_sentences(para)
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for sentence in sentences:
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sentence = sentence.strip()
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if not sentence:
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continue
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sent_length = len(sentence)
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new_length = current_length + sent_length + (1 if current_buffer else 0)
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if new_length <= self.max_chars:
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current_buffer.append(sentence)
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current_length = new_length
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else:
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# 如果当前缓冲区达到最小长度要求
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if current_length >= self.min_chars:
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segments.append((
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'\n'.join(current_buffer),
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*current_section_info
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))
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current_buffer = [sentence]
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current_length = sent_length
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else:
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# 尝试将过长的句子分割
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split_sentences = self._split_long_sentence(sentence)
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for split_sent in split_sentences:
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if current_length + len(split_sent) <= self.max_chars:
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current_buffer.append(split_sent)
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current_length += len(split_sent) + 1
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else:
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segments.append((
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'\n'.join(current_buffer),
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*current_section_info
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))
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current_buffer = [split_sent]
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current_length = len(split_sent)
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# 处理剩余的缓冲区
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if current_buffer:
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segments.append((
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'\n'.join(current_buffer),
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*current_section_info
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))
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return segments
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return None
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def _process_single_tex(self, file_path: str) -> List[ArxivFragment]:
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"""处理单个TEX文件"""
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@@ -481,12 +459,12 @@ class SmartArxivSplitter:
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segments = self._smart_split(content)
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fragments = []
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for i, (segment_content, section_path, section_type, level, is_appendix) in enumerate(segments):
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for i, (segment_content, section, is_appendix) in enumerate(segments):
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if segment_content.strip():
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segment_type = 'text'
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for env_type, patterns in self.special_envs.items():
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if any(re.search(pattern, segment_content, re.DOTALL)
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for pattern in patterns):
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for pattern in patterns):
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segment_type = env_type
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break
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@@ -499,9 +477,7 @@ class SmartArxivSplitter:
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segment_type=segment_type,
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title=title,
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abstract=abstract,
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section=section_path,
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section_type=section_type,
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section_level=level,
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section=section,
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is_appendix=is_appendix
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))
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@@ -511,7 +487,6 @@ class SmartArxivSplitter:
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logging.error(f"Error processing file {file_path}: {e}")
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return []
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def main():
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"""使用示例"""
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# 创建分割器实例
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@@ -521,10 +496,11 @@ def main():
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)
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# 处理论文
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for fragment in splitter.process_paper("2411.03663"):
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for fragment in splitter.process("2411.03663"):
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print(f"Segment {fragment.segment_index + 1}/{fragment.total_segments}")
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print(f"Length: {len(fragment.content)}")
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print(f"Section: {fragment.section}")
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print(f"Title: {fragment.file_path}")
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print(fragment.content)
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print("-" * 80)
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@@ -1,7 +1,6 @@
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from typing import Tuple, Optional, Generator, List
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from toolbox import update_ui, update_ui_lastest_msg, get_conf
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import os, tarfile, requests, time, re
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class ArxivPaperProcessor:
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"""Arxiv论文处理器类"""
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@@ -81,5 +81,84 @@ class RagHandler:
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)
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)
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return response
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except Exception as e:
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return f"查询出错: {str(e)}"
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class RagHandler:
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def __init__(self):
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# 初始化工作目录
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self.working_dir = os.path.join(get_conf('ARXIV_CACHE_DIR'), 'rag_cache')
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if not os.path.exists(self.working_dir):
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os.makedirs(self.working_dir)
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# 初始化 LightRAG
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self.rag = LightRAG(
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working_dir=self.working_dir,
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llm_model_func=self._llm_model_func,
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embedding_func=EmbeddingFunc(
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embedding_dim=1536, # OpenAI embedding 维度
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max_token_size=8192,
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func=self._embedding_func,
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),
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)
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async def _llm_model_func(self, prompt: str, system_prompt: str = None,
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history_messages: List = None, **kwargs) -> str:
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"""LLM 模型函数"""
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messages = []
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if system_prompt:
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messages.append({"role": "system", "content": system_prompt})
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if history_messages:
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messages.extend(history_messages)
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messages.append({"role": "user", "content": prompt})
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response = await openai.ChatCompletion.acreate(
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model="gpt-3.5-turbo",
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messages=messages,
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temperature=kwargs.get("temperature", 0),
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max_tokens=kwargs.get("max_tokens", 1000)
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)
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return response.choices[0].message.content
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async def _embedding_func(self, texts: List[str]) -> np.ndarray:
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"""Embedding 函数"""
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response = await openai.Embedding.acreate(
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model="text-embedding-ada-002",
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input=texts
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)
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embeddings = [item["embedding"] for item in response["data"]]
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return np.array(embeddings)
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def process_paper_content(self, paper_content: Dict) -> None:
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"""处理论文内容,构建知识图谱"""
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# 处理标题和摘要
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content_list = []
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if paper_content['title']:
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content_list.append(f"Title: {paper_content['title']}")
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if paper_content['abstract']:
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content_list.append(f"Abstract: {paper_content['abstract']}")
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# 添加分段内容
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content_list.extend(paper_content['segments'])
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# 插入到 RAG 系统
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self.rag.insert(content_list)
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def query(self, question: str, mode: str = "hybrid") -> str:
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"""查询论文内容
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mode: 查询模式,可选 naive/local/global/hybrid
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"""
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try:
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response = self.rag.query(
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question,
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param=QueryParam(
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mode=mode,
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top_k=5, # 返回相关度最高的5个结果
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max_token_for_text_unit=2048, # 每个文本单元的最大token数
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response_type="detailed" # 返回详细回答
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)
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)
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return response
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except Exception as e:
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return f"查询出错: {str(e)}"
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