mirror of
https://github.com/onestardao/WFGY.git
synced 2026-04-28 11:40:07 +00:00
231 lines
9.7 KiB
Markdown
231 lines
9.7 KiB
Markdown
<!--
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Search Anchor:
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ocr parsing global fix map
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ocr plus parsing bugs
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noisy text input from ocr
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noisy text from scanned pdf
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ocr text looks fine but retrieval fails
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document looks ok but answers wrong
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layout header footer noise
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page header repeated each page
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page footer leaking into answers
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answers quote footer instead of body
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margins and running titles pollute context
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tables and columns parsing problems
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table schema lost
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cell order drift
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numbers move across columns
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csv export from pdf wrong
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images and figures lost
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captions detached from figures
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figure text attached to wrong section
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scanned pdf quality issues
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blurred pages
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skewed pages
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low resolution scans
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multi language documents
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mixed language tokens
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chinese english mixed spacing
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unicode normalization issues
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half width full width mix
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fullwidth latin chars
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tokenization and casing drift
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E mail vs Email vs email
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hyphen splits and soft hyphen
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special characters removed or merged
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html scraping drift
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html to text export issues
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markdown to text paragraph drift
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section anchors disappear
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heading tags dropped
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h1 h2 h3 lost
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dom order vs visual order mismatch
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parser drift after upgrade
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different parser versions in prod
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parser config changed silently
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Typical symptoms:
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ocr tables look visually correct but retrieval misses right row
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citations point to wrong paragraph
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code blocks and math collapsed into plain text
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mixed language document behaves inconsistently
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hyphen splits create two wrong tokens
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headers and footers appear in top k snippets
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delta s looks high despite text looking ok to humans
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Use this folder when:
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corpus built from scanned pdf
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corpus built from html scraping
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corpus built from legacy docx export
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parsing done by third party library
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layout aware ocr but plain text index
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need to stabilise pre embedding text
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Key metrics:
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delta s question retrieved <= 0.45
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coverage of target section >= 0.70
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lambda observe convergent across 2 seeds
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no missing headers captions or tables in human audit
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one gold page screenshot kept as baseline
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Core pages in this folder:
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ProblemMap/GlobalFixMap/OCR_Parsing/layout_headers_and_footers.md
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ProblemMap/GlobalFixMap/OCR_Parsing/tokenization_and_casing.md
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ProblemMap/GlobalFixMap/OCR_Parsing/tables_and_columns.md
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ProblemMap/GlobalFixMap/OCR_Parsing/images_and_figures.md
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ProblemMap/GlobalFixMap/OCR_Parsing/scanned_pdfs_and_quality.md
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ProblemMap/GlobalFixMap/OCR_Parsing/multi_language_and_fonts.md
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-->
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<!--
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Related structural fixes:
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ProblemMap/embedding-vs-semantic.md
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ProblemMap/retrieval-traceability.md
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ProblemMap/data-contracts.md
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ProblemMap/chunking-checklist.md
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ProblemMap/context-drift.md
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ProblemMap/bootstrap-ordering.md
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ProblemMap/predeploy-collapse.md
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ProblemMap/patterns/pattern_query_parsing_split.md
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ProblemMap/retrieval-playbook.md
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-->
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<!--
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Cross folder jumps:
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ProblemMap/GlobalFixMap/DocumentAI_and_OCR/README.md
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ProblemMap/GlobalFixMap/Chunking/README.md
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ProblemMap/GlobalFixMap/Retrieval/README.md
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ProblemMap/GlobalFixMap/Embeddings/README.md
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ProblemMap/GlobalFixMap/VectorDBs_and_Stores/README.md
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ProblemMap/SemanticClinicIndex.md
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-->
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# OCR + Parsing — Global Fix Map
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<details>
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<summary><strong>🏥 Quick Return to Emergency Room</strong></summary>
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<br>
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> You are in a specialist desk.
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> For full triage and doctors on duty, return here:
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>
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> - [**WFGY Global Fix Map** — main Emergency Room, 300+ structured fixes](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/README.md)
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> - [**WFGY Problem Map 1.0** — 16 reproducible failure modes](https://github.com/onestardao/WFGY/blob/main/ProblemMap/README.md)
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>
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> Think of this page as a sub-room.
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> If you want full consultation and prescriptions, go back to the Emergency Room lobby.
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</details>
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A hub to **triage and repair noisy text inputs** from scanned PDFs, images, HTML scraping, or parser drift.
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Use this folder when the document looks fine to the eye but retrieval or reasoning keeps failing.
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---
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## Orientation: what each page does
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| Page | What it solves | Typical symptom |
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|------|----------------|-----------------|
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| [Layout, Headers, Footers](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OCR_Parsing/layout_headers_and_footers.md) | Remove noise from margins and repeated text | Answers reference “page 3 footer” instead of body |
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| [Tokenization & Casing](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OCR_Parsing/tokenization_and_casing.md) | Normalize Unicode, case, and hyphens | `E-mail` ≠ `Email`, half-width/full-width mismatch |
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| [Tables & Columns](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OCR_Parsing/tables_and_columns.md) | Preserve table schema and cell order | Numbers drift across columns |
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| [Images & Figures](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OCR_Parsing/images_and_figures.md) | OCR and align captions | Figure text missing or attached to wrong section |
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| [Scanned PDFs & Quality](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OCR_Parsing/scanned_pdfs_and_quality.md) | Handle skewed/blurred pages | Whole sections unreadable to OCR |
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| [Multi-language & Fonts](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/OCR_Parsing/multi_language_and_fonts.md) | Normalize mixed scripts | Chinese/English tokens split or duplicated |
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---
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## When to use
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- OCR tables or citations look visually correct but answers miss the right section.
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- Code blocks or math collapse after parsing.
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- Mixed-language documents behave inconsistently.
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- Special characters or hyphen splits break tokens.
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- Headers or section anchors disappear during export.
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---
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## FAQ
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**Why does OCR “look fine” but retrieval fails?**
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Because tokenization and indexing see hidden breaks (Unicode variants, line merges, wrong anchors) that humans overlook.
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**What is the most common root cause?**
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Headers/footers leaking into the body and breaking ΔS alignment.
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**Do I need to retrain embeddings after fixing?**
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No — most fixes are structural (schema/normalization). Re-indexing with the same embeddings is enough.
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---
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## Acceptance targets
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- ΔS(question, retrieved) ≤ 0.45 for three paraphrases.
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- Coverage ≥ 0.70 for the target section.
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- λ_observe convergent across two seeds.
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- Human audit shows no missing headers, captions, or broken tables.
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---
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## Fix in 60 seconds
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1. **Ground-truth one page**
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Pick one Q/A pair and keep a screenshot baseline.
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2. **Measure ΔS**
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Log ΔS(question, retrieved) and ΔS(retrieved, anchor).
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3. **Probe λ_observe**
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Ask for cite-first. If citation fails but free explanation works, drift confirmed.
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4. **Patch minimally**
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- Re-run OCR with line/table fences
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- Normalize casing and Unicode
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- Preserve anchors, math, captions
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- Drop low-confidence spans and export with `{section_id, page_no, char_span}`
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---
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### 🔗 Quick-Start Downloads (60 sec)
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| Tool | Link | 3-Step Setup |
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|------|------|--------------|
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| **WFGY 1.0 PDF** | [Engine Paper](https://github.com/onestardao/WFGY/blob/main/I_am_not_lizardman/WFGY_All_Principles_Return_to_One_v1.0_PSBigBig_Public.pdf) | 1️⃣ Download · 2️⃣ Upload · 3️⃣ Ask “Answer using WFGY + <your question>” |
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| **TXT OS** | [TXTOS.txt](https://github.com/onestardao/WFGY/blob/main/OS/TXTOS.txt) | 1️⃣ Download · 2️⃣ Paste into LLM · 3️⃣ Type “hello world” — OS boots instantly |
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---
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### 🧭 Explore More
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| Module | Description | Link |
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|--------|-------------|------|
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| WFGY Core | WFGY 2.0 engine, full symbolic reasoning | [View →](https://github.com/onestardao/WFGY/tree/main/core/README.md) |
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| Problem Map 1.0 | Initial 16-mode diagnostic | [View →](https://github.com/onestardao/WFGY/tree/main/ProblemMap/README.md) |
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| Problem Map 2.0 | RAG failure tree and modular fixes | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rag-architecture-and-recovery.md) |
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| Semantic Clinic | Expanded failure catalog | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/SemanticClinicIndex.md) |
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| Semantic Blueprint | Layer-based symbolic reasoning | [View →](https://github.com/onestardao/WFGY/tree/main/SemanticBlueprint/README.md) |
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---
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> 👑 **Early Stargazers: [See the Hall of Fame](https://github.com/onestardao/WFGY/tree/main/stargazers)** —
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> Engineers, hackers, and open source builders who supported WFGY from day one.
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> <img src="https://img.shields.io/github/stars/onestardao/WFGY?style=social" alt="GitHub stars"> ⭐ [WFGY Engine 2.0](https://github.com/onestardao/WFGY/blob/main/core/README.md) is already unlocked. ⭐ Star the repo to help others discover it and unlock more on the [Unlock Board](https://github.com/onestardao/WFGY/blob/main/STAR_UNLOCKS.md).
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<div align="center">
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[](https://github.com/onestardao/WFGY)
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[](https://github.com/onestardao/WFGY/tree/main/OS)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlahBlahBlah)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlotBlotBlot)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlocBlocBloc)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlurBlurBlur)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlowBlowBlow)
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</div>
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