Module boundary_detection 

Semantic boundary detection for BAR-RAG Semantic Boundary Detection for Boundary-Aware Chunking

This module implements intelligent detection of semantic boundaries in text, enabling chunking strategies that respect natural document structure.

Key capabilities:

• Sentence boundary detection (NLTK-style rules)
• Paragraph detection (newline patterns)
• Heading detection (Markdown, RST, plaintext)
• List boundary detection
• Code block detection

References

• BAR-RAG Paper: “Boundary-Aware Retrieval-Augmented Generation”
• Target: +40% semantic coherence, -60% entity fragmentation

Structs

Boundary

Represents a detected boundary in text

BoundaryDetectionConfig

Configuration for boundary detection

BoundaryDetector

Boundary detector for semantic text segmentation

Enums

BoundaryType

Type of boundary detected