Pfizer logoCurrently an Extern @Pfizer
Zeyu Xu portrait

AI Enthusiast | Data Extraction Specialist

I harness the power of AI for document insights and data extraction, transforming how organizations manage information.

Work samples

Discover projects that showcase my expertise in AI-driven document insights and data management solutions.

  • Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship
    Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship
    Pfizer logo

    Pfizer · Aug 2026 · ✅ Verified by Extern

    Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship

    Prototype AI-powered document intelligence with Pfizer—using OCR, LLMs, and RAG to automate real enterprise PDF workflows and build a standout portfolio project.

    AI & MLPythonDocument IntelligencePresentation Skills

About me

I harness the power of AI for document insights and data extraction, transforming how organizations manage information.

I am currently engaged in an externship at Pfizer, focusing on AI-powered document insights and data extraction. My work involves leveraging advanced technologies to enhance data management and improve decision-making processes.

Externships

Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship

Pfizer

Skills

AIData ExtractionDocument InsightsData Management

✅ Verified by Extern

Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship

Prototype AI-powered document intelligence with Pfizer—using OCR, LLMs, and RAG to automate real enterprise PDF workflows and build a standout portfolio project.

AI & MLPythonDocument IntelligencePresentation Skills

Overview

The work prototyped an end-to-end document intelligence pipeline for pharmaceutical PDFs, producing cleaned OCR-ready images, spatially-aware parsed exports, OCR comparison artifacts, RAG retrieval experiments, page-level JSON/CSV routing, and a stateful Gradio chatbot. Deliverables included a Colab demo, structured exports, RAG scorecards, and a multi-turn Gradio dashboard.

Pfizer Advanced: AI-Powered Document Insights & Data Extraction Externship

What I've accomplished

I delivered a working prototype: image cleaning for OCR, spatial text extraction with structured exports, OCR-engine comparisons and a Colab notebook, hybrid BM25+vector RAG with cross-encoder reranking, page-level JSON/CSV routing, and a stateful Gradio chatbot linked to the document index.

Project breakdown

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