Artificial Intelligence & ICT · UNU Macau

Jia An Liu

I research agentic AI, build the systems that run it, and turn both into policy for the United Nations.

Portrait of Jia An Liu
10 Publications & book chapters
IF 9.8 Top-tier Q1 research
Best Paper AAAI 2026 workshop
4 clouds AWS · Azure · Cloudflare · on-prem

Three disciplines, held by one person.

Applied AI researcher and institutional technologist at the United Nations University. I work across three fronts at once: peer-reviewed research on agentic AI and computational social science, the production cloud platforms that deliver it inside a UN institute, and the policy work that carries it to governments.

Applied AI research

Agentic AI, LLM-enhanced agent-based modeling, computer vision, and remote sensing, published in Q1 journals and at IEEE and AAAI venues.

  • LLM-driven urban and social simulation
  • Vision-language models for remote sensing
  • LLM evaluation for real policymaking

Production systems

Sole ICT focal point at UNU Macau: I design, deploy, and operate the institute’s AI platforms and cloud infrastructure end to end.

  • Multi-cloud + on-prem GPU, containerized
  • Secure access, routing, monitoring, recovery
  • Full-stack web and agent platforms

Digital governance

Research that reaches decision-makers: AI as a digital public good, open-source readiness, and capacity building for the UN and member states.

  • AI as digital public goods (ADB)
  • Open-source readiness for the public sector
  • Keynotes and trainings across Asia
Affiliations
United Nations UniversityUnited NationsInternational Telecommunication UnionZhejiang University

Selected work

Research and systems, shipped.

UrbanAgents

Agentic AI · Geospatial

UrbanAgents

LLM-driven agents that simulate a city, block by block.

A reproducibility-first framework for LLM-enhanced agent-based urban simulation. Spatially grounded agents perceive, plan, and act inside a minute-resolution model of Macau to test policy under heat, access, and misinformation.

  • Python
  • GeoPandas
  • GDAL
  • OpenStreetMap
  • LLM agents
  • React
SYSU-HiRoads

Remote sensing · Open science

SYSU-HiRoads

A large-scale remote-sensing road dataset, released openly.

A large, fine-grained remote-sensing road dataset paired with a vision-language-geometry algorithm for hierarchical road classification, released openly with a DOI for the research community.

  • Python
  • PyTorch
  • Vision-language models
  • GDAL
EnvironMax

Geospatial · Environmental health

EnvironMax

Turning live environmental data into personal health guidance.

A geospatial platform that fuses IoT, GPS, mobile-sensing, and meteorological data into location-based health-risk assessment and personalized, hazard-aware navigation. The research behind it reached two top-tier Q1 journals.

  • Python
  • GIS
  • Spatial analysis
  • IoT / GPS fusion
Institutional AI Platform

Systems · Cloud · DevOps

Institutional AI Platform

The full AI and cloud stack of a UN institute, run by one person.

As the only ICT focal point at UNU Macau, I designed and operate the institute’s AI platform end to end: chat and agent services, an LLM router, authenticated tool portals, and the multi-cloud and on-prem infrastructure under them.

  • Docker
  • AWS
  • Azure
  • Cloudflare
  • Caddy / Nginx
  • FastAPI
ReModelUN

AI for education · Platform

ReModelUN

AI-augmented Model UN that turns youth debate into policy insight.

An AI-enhanced Model UN initiative, with the Learning Planet Institute, that uses agentic AI to support delegates, amplify under-represented perspectives, and synthesize youth deliberation into structured reports.

  • FastAPI
  • Jinja2
  • Tailwind CSS
  • Docker
Tessera

Agentic systems · Research infrastructure

Tessera

A reproducible agent harness for large-scale content analysis.

An end-to-end agent framework that brings modern engineering to qualitative research: a YAML recipe language, content-addressed caching for byte-level reproducibility, and claim-level evidence traceability.

  • Python
  • FastAPI
  • PostgreSQL
  • React

More work

LLM evaluation · with IBM Research

LLMs for social policymaking

An evaluation framework comparing LLM policy recommendations with expert judgment across four cities on four continents. Best Paper, AAAI 2026 workshop.

Paper (arXiv)

Capacity building · Microsoft-funded

AI for the UN & the SDGs

Co-developed a global online course translating AI research into applied learning for diplomats, development practitioners, and policy analysts.

AI Macau

Computer vision · IEEE IJCNN 2024

Diffusion-model forensics

Detecting AI-generated images and the universal artifacts shared across diffusion models and GANs, with analysis of adversarial robustness.

Web · Cloudflare edge

Serverless full-stack demo

A public reference app on Cloudflare Workers, D1, and R2 (React, Vite, TypeScript), showing cost-efficient edge deployment.

trip.jiaan.me

Internship · ITU Geneva

ITU Operational Bulletin automation

Evaluated, integrated, and deployed an editor application on AWS to automate the ITU Operational Bulletin, with internal documentation.

GitHub

Policy research · ADB-funded

AI as digital public goods

Defining and operationalizing open, governed AI as public infrastructure for development contexts across the Asia-Pacific.

All projects

Selected publications.

Peer-reviewed research across agentic AI, remote sensing, and environmental science, including two Q1 journals and a Best Paper award.

  1. 2025

    What would an LLM do? Evaluating policymaking capabilities of large language models

    Le Coz, P., Liu, J., Bhattacharjya, D., Curto, G., & Stinckwich, S.

    CoRR abs/2509.03827 · Best Paper, AAAI 2026 Workshop on LMs for Underserved Communities

    Best PaperAAAI 2026
  2. 2025

    Agentic AI for sustainable development: LLM-enhanced agent-based modeling for complex policy strategies

    Liu, J., Chu, C., Zhao, Y., Aoki, G., & Xiao, Z.

    Emerging Media, 3(3), 401–413

    Journal
  3. 2026

    Cognitive urban simulation with large language models under the fifteen-minute-city paradigm

    Le Coz, P., & Liu, J.

    In AI for Humanity: Building an Equitable Digital Future. Springer (UNU–Springer)

    SpringerChapter
  4. 2026

    A large-scale remote-sensing dataset and VLM-based algorithm for fine-grained road hierarchy classification

    Han, T., Xie, X., Chen, Y., Du, Y., Ma, J., Li, A., Liu, J., & Gao, Y.

    arXiv:2603.21222 · dataset on Zenodo (DOI 10.5281/zenodo.18642747)

    DatasetPreprint
  5. 2024

    Unveiling universal forensics of diffusion models with adversarial perturbations

    Xie, K., Liu, J., Zhu, M., Ding, G., Liu, Z., Chen, H., & Chen, H.

    IEEE International Joint Conference on Neural Networks (IJCNN)

    IEEE
  6. 2021

    Navigating to urban environmental health: a personalized healthy-living assistant based on intelligent health-risk management

    Li, F., Liu, J., Chen, Z., Huang, J., Liu, C., & Qu, Z.

    Urban Climate, 40, 101020

    Q1IF 6.4

All publications

Speaking & engagement

Carrying the work into the room.

Keynotes & invited talks

  • Keynote, China (Macau) International Cross-border E-commerce Expo 2025
  • Keynote, GBA International Model UN Conference 2025 (Hong Kong)
  • Joint keynote & jury, Asian Social Simulation Association 2025 (Wuhan)
  • Panelist, Smart City Expo Kuala Lumpur 2025
  • Speaker, IEEE Universal Village 2024 (Boston)
  • Speaker & reviewer, UNIDO AIM Global Forum 2024 (Vienna)

Capacity building & training

  • Lecturer, UNU Digital Technology & Sustainable Development Talent Programme 2026 (Macau / Bonn / Maastricht)
  • Lecturer, "Demystifying AI for Diplomats" 2025 (UN China & British Consulate, Hong Kong)
  • Lecturer, China–ASEAN Seminar for In-service Statistical Personnel 2025 (Nanning)
  • Lecturer, Global Youth Forum 2025 (ILO / ITCILO)

Experience

  1. United Nations University Institute in Macau Jan 2024 – present

    Research Assistant & ICT Focal Point (Artificial Intelligence) · Macau SAR, China

    • Lead applied AI research on agentic systems, LLM-enhanced simulation, and AI for sustainable development.
    • Sole ICT focal point: design, deploy, and operate the institute’s AI platforms and multi-cloud infrastructure.
    • Represent UNU Macau in the UNU ICT Network, OneIT, and the Information Security Policy working group.
  2. International Telecommunication Union (ITU) Aug 2024 – Nov 2024

    Operational Bulletin Automation Intern, TSB · Geneva (remote)

    • Evaluated, integrated, and deployed an editor application on AWS to automate the ITU Operational Bulletin.
    • Co-wrote the internal documentation and user guide supporting adoption.
  3. Shanghai Cooperation Organization (SCO) Jul 2021 – Sep 2021

    Team Lead Intern, International Exchange & Judicial Cooperation · Shanghai, China

    • Coordinated a China–ASEAN symposium and developed new international training programmes.
  4. Health Commission of Zhejiang Province Jul 2021 – Aug 2021

    Team Lead Intern · Hangzhou, China

    • Supported the design and deployment of the province’s "Health Cloud" and reported on data interoperability.

Education

  1. Zhejiang University 2019 – 2023

    M.Eng., Computer Science & Technology (AI specialization)

    GPA 3.8/4.0. Minor in International Organizations & International Development (3.92/4.0). Graduated with Honors; Outstanding Student Award.

  2. Zhongnan University of Economics and Law 2015 – 2019

    B.Mgmt., E-Commerce Technology

    Interdisciplinary training across computer science, management, economics, and law.

Awards & honors

  • Best Paper Award, AAAI 2026 Workshop on Language Models for Underserved Communities
  • Outstanding Student Award, Zhejiang University (2023)
  • Graduated with Honors, Minor in International Organizations & Development (GPA 3.92/4.0)
  • Member, ZJU Global Engagement Program

Toolkit.

AI & machine learning

  • PyTorch
  • LLM agents & RAG
  • Agent-based modeling
  • Computer vision
  • Vision-language models
  • LLM evaluation
  • Responsible AI

Geospatial & remote sensing

  • QGIS / PostGIS
  • GeoPandas
  • GDAL
  • Satellite imagery
  • Accessibility analysis
  • Leaflet / Mapbox

Systems & cloud

  • Docker
  • AWS
  • Azure
  • Cloudflare
  • Caddy / Nginx
  • Entra ID / OAuth2
  • Monitoring & recovery

Programming & web

  • Python (FastAPI)
  • TypeScript / React
  • PostgreSQL
  • C / C++
  • Git
  • Astro / Vite

Policy & engagement

  • Digital governance
  • AI as public goods
  • Policy briefs
  • Capacity building
  • Bilingual (中文 / English)

Get in touch

Open to research collaboration, advisory, and applied AI work in the UN system and beyond.