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Mamba models offer faster OCR but lag Transformer accuracy on historical texts

By PulseAugur Editorial · [2 sources] ·

Researchers have benchmarked State-Space Models (SSMs), specifically Mamba, against Transformers and BiLSTMs for Optical Character Recognition (OCR) on historical newspapers. The studies indicate that while Mamba-based models offer significant computational advantages, halving inference time and showing better memory scaling, they achieve slightly lower accuracy on severely degraded text compared to Transformer-based models. Further ablation studies suggest that Mamba's performance on longer sequences, like paragraphs, is highly dependent on hyperparameter tuning and can be data-hungry, lagging behind Transformers on real handwriting, though it remains faster on clean synthetic text. AI

IMPACT Mamba offers computational efficiency for OCR, but Transformers remain superior for accuracy on challenging handwriting and long sequences.

RANK_REASON Two research papers comparing State-Space Models (Mamba) against Transformers and BiLSTMs for OCR tasks.

Read on arXiv cs.LG →

AI-generated summary · Google Gemini · from 2 sources. How we write summaries →

Mamba models offer faster OCR but lag Transformer accuracy on historical texts

COVERAGE [2]

  1. arXiv cs.LG TIER_1 English(EN) · Merveilles Agbeti-Messan, Pierrick Tranouez, St\'ephane Nicolas, Cl\'ement Chatelain, Thierry Paquet ·

    A Benchmark of State-Space Models vs. Transformers and BiLSTM-based Models for Historical Newspaper OCR

    arXiv:2604.00725v2 Announce Type: replace-cross Abstract: End-to-end OCR for historical newspapers remains challenging, as models must handle long text sequences, degraded print quality, and complex layouts. While Transformer-based recognizers dominate current research, their qua…

  2. arXiv cs.CV TIER_1 English(EN) · Thierry Paquet ·

    Scaling State-Space Models from Lines to Paragraphs: An Ablation of Mamba-based OCR

    End-to-end OCR increasingly relies on autoregressive sequence models, where the quadratic cost of Transformer attention limits efficient transcription of long, paragraph-level text. State-Space Models (SSMs) such as Mamba offer linear-time decoding and have recently been shown to…

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