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| # adaptive | |
| The universal_parser.adaptive module implements spatial layout fingerprinting, LRU configuration caching, and coordinate-descent auto-tuning. | |
| --- | |
| ## Files and Modules | |
| | File | Purpose | Key Classes / Functions | | |
| |---|---|---| | |
| | ingerprint.py | Calculates 10x10 spatial layout histograms and SHA-256 hashes. | compute_fingerprint(), LayoutFingerprint | | |
| | cache.py | LRU template configuration cache with fuzzy Cosine-Jaccard matching. | TemplateConfigCache | | |
| | uner.py | Coordinate-descent optimizer for fine-tuning extraction thresholds. | uto_tune() | | |
| --- | |
| ## Technical Details | |
| ### Spatial Fingerprinting ( ingerprint.py) | |
| Computes a 2D spatial histogram by dividing page bounds into a 10x10 grid. It quantizes bounding boxes into grid cells to capture visual layout structure independently of specific textual content. | |
| ### Template Cache (cache.py) | |
| Stores optimal extraction configurations per layout structure. Supports exact SHA-256 matching and fuzzy Jaccard similarity lookups for slightly varied document templates. | |
| --- | |
| ## Usage Example | |
| `python | |
| from universal_parser.adaptive.fingerprint import compute_fingerprint | |
| from universal_parser.adaptive.cache import TemplateConfigCache | |
| # doc = parse(...) | |
| # fp = compute_fingerprint(doc) | |
| ` | |