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Ziyang Yu

I build applied AI systems that connect data, models, and real operating workflows. My background combines graduate quantitative training, end-to-end machine-learning projects, and hands-on work translating ambiguous business problems into testable, reviewable AI workflows.

Featured work

  • Applied Machine Learning Portfolio — computer vision, NLP, and explainable tabular modeling with model comparisons, verified saved metrics, limitations, and explicit team attribution.
  • AI-Native Foreign Trade Operations Workspace — a project I am currently developing around real operating needs, with the goal of connecting channels such as Alibaba.com, independent websites, email, and social networks into a reusable AI-driven workflow for lead development, outreach, CRM, follow-up, and operational learning. The public repository is a sanitized demo version.

What I work on

  • End-to-end machine-learning evaluation and error analysis
  • LLM applications, structured outputs, tool use, and human-in-the-loop controls
  • Reusable data and workflow pipelines for business operations
  • Agent-oriented product thinking: task decomposition, review gates, auditability, and continuous improvement
  • Technical communication across engineering, data, product, and commercial teams

Additional prototype

  • Lyslle — an early Streamlit safety-classification prototype with explicit limitations and human-review routing. It is presented as a small prototype, not a deployed clinical system.

Working principles

I care about measurable outcomes, honest evaluation, clear ownership, and AI systems that leave behind reusable workflows rather than one-off outputs.

Pinned Loading

  1. foreign-trade-ai-ops-demo foreign-trade-ai-ops-demo Public

    Synthetic AI-native foreign trade operations workspace with auditable agent workflows and owner review gates.

    HTML

  2. applied-ml-portfolio applied-ml-portfolio Public

    Applied ML portfolio: computer vision, NLP, and explainable modeling with verified results and explicit attribution.

    Jupyter Notebook