Table, chart and layout extraction
Header and Footer Removal in Document Preprocessing
Removing headers and footers from documents can boost AI accuracy by 20 percentage points.
Margaret Solloway
Contributing Editor · · 10 min read
The Parse Layer
RAG ingestion and chunking strategy
Fixed-Size vs Semantic Chunking for Document Retrieval Accuracy
Fixed-size chunking outperforms semantic chunking on real-world benchmarks, despite its simplicity.
Adesola Bankole9 min read
Table, chart and layout extraction
Form Field Extraction From Structured PDF Forms
CommonForms dataset now benchmarks form field detection against vendor claims.
Tomasz Wierzbicki12 min read
Table, chart and layout extraction
Chart and Figure Data Extraction From PDF Reports
Modern tools combining OCR and vision models now extract chart data from PDFs as structured tables.
Adesola Bankole10 min read
Table, chart and layout extraction
Table Structure Recognition Models Compared on Spanning Cells
Metric choice and dataset quality reveal which models truly handle merged cells best.
Margaret Solloway10 min read
Table, chart and layout extraction
Table-to-Markdown Conversion Fidelity for RAG Pipelines
Conversion missteps destroy table relationships before RAG systems even retrieve them.
Tomasz Wierzbicki14 min read
Document parsing and OCR accuracy
Document Image Resolution Thresholds for Reliable OCR
Set your scanner to 300 DPI minimum, or OCR will fail no matter how smart your software is.
Margaret Solloway11 min read
Document parsing and OCR accuracy
Font and Layout Variability Effects on OCR Error Rates
Document prep choices like font and layout matter far more than the OCR engine itself.
Tomasz Wierzbicki10 min read
Document parsing and OCR accuracy
Multi-Language OCR for Mixed-Script Enterprise Documents
Enterprise OCR must handle bidirectional text and mixed scripts in the extraction layer itself.
Margaret Solloway11 min read
Document parsing and OCR accuracy
Preprocessing Pipelines That Improve OCR Output Quality
Sequence matters: preprocessing steps in the wrong order leave OCR stuck between broken and working.
Ingrid Halvorsen10 min read
Document parsing and OCR accuracy
Handwritten Text Recognition Accuracy in Scanned Forms
Document quality matters more than model selection for improving real-world handwriting recognition.
Margaret Solloway13 min read
Document parsing and OCR accuracy
OCR Engine Comparison for Dense Technical PDFs
Vendor benchmarks measure clean text, not the dense PDFs that break OCR in practice.
Adesola Bankole11 min read
