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Author

Michalis Vlachos

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Book Open access Aug 2026

Cost-Aware Human-LLM Collaboration for Post-OCR Corrections in Swiss Historical Newspapers

A regression-guided routing approach that prioritizes segments by predicted CER improvement, paired with a safeguard layer that detects harmful LLM corrections and routes uncertain segments to human review, and substantially outperforms standard confidence-based approaches is introduced.

Stergios Konstantinidis, Hayman Lotfy, Michalis Vlachos · 0 citations
Preprint Jul 2026

Improving Access to Historical Archives with Real-time RAG-based Systems

This work presents an end-to-end archival processing and retrieval framework that integrates large language models (LLMs) into the archival pipeline and demonstrates that integrating LLMs with established document processing and retrieval pipelines can elevate digital libraries from static repositories to interactive, semantically searchable archival systems.

Stergios Konstantinidis, Hayman Lotfy, Alexis Erne et al. · 0 citations