C-Y. Esther LIU

( 01 ) — SPATIAL NARRATIVE

Reading cities as layered terrain, one contour at a time.

Distilling the complex weave of population, land, and spatial movement into clear, simple stories and maps to inform decision-making.

12
Years mapping
40+
Maps shipped
3
Working langs
NOTEBOOKCITY · PLANNING · LIFE

( 02 ) — SELECTED WORK

Maps that carry a decision.

Cycling–Transit Intermodality Analysis — GIS
2026 — GIS

Cycling–Transit Intermodality Analysis

300-metre interchange coverage between cycle routes and TAN stops across Nantes Métropole.

Senior healthcare accessibility in Nantes — GIS
2026 — GIS

Senior healthcare accessibility in Nantes

Doctors, pharmacies and older residents within a 10-minute walk.

Childcare supply and demand in Nantes, 2032 — GIS
2026 — GIS

Childcare supply and demand in Nantes, 2032

Spatial gaps between existing crèches and projected demand among children aged 0–2.

Spatial Analysis of the Digital Divide — GIS
2026 — GIS

Spatial Analysis of the Digital Divide

Fibre coverage × population density in Loire-Atlantique.

Seeing Quality Early Education: An Interactive Kindergarten Finder for Tainan and Its Future — GIS
2026 — GIS · PYTHON

Seeing Quality Early Education: An Interactive Kindergarten Finder for Tainan and Its Future

An interactive map of public and private kindergartens across Tainan, with locations and contact details.

Bus transit deserts in Tainan City — GIS
2026 — GIS

Bus transit deserts in Tainan City

Locating high-density residential neighbourhoods left beyond the reach of the existing bus network.

Projected population change in Tainan, 2024–2036 — GIS
2026 — GIS

Projected population change in Tainan, 2024–2036

A shrinking old city and a polarising new one: where Tainan loses and gains residents.

( 03 ) — PROFILE

Chun-ya LIU, PhD

SOCIO-ECONOMIC STUDIES & GIS SPECIALIST

From Tainan, Taiwan, and living in France for over 15 years, with a PhD in land planning, masters in demography and geography, as well as in national development. I specialise in online platform building and database management, cartographic analysis, AI spatial model training and GIS technical training — and I am dedicated to applying spatial-analysis methods in socio-economic research.

BASED — NANTES, FR EU LONG-TERM RESIDENT

LANGUAGES

  • Chinese · TaiwaneseZH · NATIVE
  • FrenchFR · FLUENT
  • EnglishEN · IELTS 6.5

EXPERIENCE

  1. GeoAI Spatial Data Specialist — Scale AI (Remote)

    2026

    Geospatial AI & LLM Alignment (RLHF): Evaluated, fine-tuned, and benchmarked generative AI and frontier models, with a specialized focus on spatial reasoning, geostatistics, and GIS workflows.

  2. Geo-statistician — Gérontopôle des Pays de la Loire

    2023 — 2025

    Built and ran Cart'âge, an online mapping platform and territorial database on ageing — grown from nothing to 2,200+ indicators. Trained 50+ public-sector users and published regular regional demographic analyses.

    cart-age.gerontopole-paysdelaloire.fr ↗
  3. Mandarin Lecturer — Université Lumière Lyon 2

    2015–2017 · 2020–2022

    Taught simplified Chinese to French university students, 200 hours per year.

  4. Doctoral Researcher — Ministry of Education, Taiwan (Grant)

    2017 — 2020

    Research on Taiwan's urban development: political regimes, economic development and urban growth. PhD thesis in Geography, supervised by Natacha Aveline — Université Paris 1 Panthéon-Sorbonne, 2020.

    theses.fr/2020PA01H015 ↗

EDUCATION

  • PhD, Land PlanningUniversité Paris 1 Panthéon-Sorbonne

    2014–2020
  • M2 GeographyUniversité Paris Cité

    2012–2013
  • M2 DemographyUniversité Paris Cité

    2011–2012
  • MA National DevelopmentNational Taiwan University

    2005–2008
  • BA Public AdministrationNational Chi Nan University

    2002–2005
  • Associate Degree in FrenchWenzao Ursuline University of Languages

    1997–2002

TECHNICAL SKILLS

GIS TOOLS

QGISArcGISGéoclipGeoDaGoogle Earth Pro

DATABASE

SQLPostgreSQL/PostGIS

STATISTICS

RSPSSExcel

DATA / WEB VISUALISATION

TableauPower BIIllustratorPhotoshopCanvaLovable

PUBLICATIONS

  • Liu, Cy., Arora, A. Decadal analysis and simulation of land use and land cover changes in Taiwan using machine learning and Markov chain models. Environ Dev Sustain (2024). (SCI, Impact Score: 5.6) doi.org/10.1007/s10668-024-05859-w ↗