Ortis Yankey, Ph.D

Geospatial Data Scientist🌍 ‖ Research Fellow @WorldPopProject University of Southampton ‖ Forever young🙂

[UNFPA au Cameroun @UNFPACameroon]

Pour @YankeyOrtis, @unisouthampton, tout le monde doit être compté. La population est cruciale pour orienter les décisions de politiques de développement. @WorldPopProject soutient #RGPH4/RGAE à développer des modèles d'estimation de population dans les zones difficiles d'accès

[WorldPopProject @WorldPopProject]

🏙️What is a city? The answer changes with the data.

Data quality defines the city. New research shows maps can disagree on what’s urban or rural depending on the population grid underneath.

🔗Read and listen:  https://t.co/RlYslH2bwV

#DEGURBA #Planning #DataForDevelopment

[WorldPopProject @WorldPopProject]

🛰️📊We're piloting AI and satellite data with Malawi’s NSO to update census areas ahead of 2028. Boosting accuracy while cutting costs.

#DataForDevelopment #FundedByFCDO #Malawi #Census2028 #InnovationInStats

🔗https://t.co/YxddcmeFuY

[WorldPopProject @WorldPopProject]

🚀Pioneering data for Somalia’s future!
WorldPop, SNBS & UNFPA are training Somali statisticians in geospatial tools to map pre‑census areas in key districts. Helping build a modern census from the ground up.
#DataForDevelopment #Somalia #Census #PreEA
🔗https://t.co/HW8usYYoKU

[WorldPopProject @WorldPopProject]

🚀 Exciting news! In partnership with the UK’s ONS & funded by FCDO, we're introducing automated mapping tech to Malawi’s National Statistics Office. Streamlining the 2028 #census for fast, cost-efficient, and accurate enumeration.
#DataForGood #Malawi
https://t.co/bZa7mtqZH3

[WorldPopProject @WorldPopProject]

Where are vaccines missing the mark?

🧭🩺 A new study maps vaccine coverage using geostatistics & machine learning - revealing the best tools to find and fix coverage gaps in low-data regions. 🌍📊

#DataForGood #Geostatistics #LeaveNoOneBehind

🔗 https://t.co/taR9ZhdPQu

[WorldPopProject @WorldPopProject]

🌍📊 WorldPop's cutting-edge research showcased at #JSM2025
#SatelliteData to improve #population estimates - esp. where data is scarce.
📡 >40% less bias.
📍 Smarter models.
🚀 Better decisions for health, aid & planning.
#Statistics #DataForGood
https://t.co/g0zzQAMtak

[WorldPopProject @WorldPopProject]

👉 We are pleased and honoured to welcome Data Science Nigeria founder/CEO Dr Bayo Adekanmbi and team to the University of Southampton. Over the next few days we will explore the potential of collaborative work and opportunities for #geospatial #AI in #Africa

@dsn_ai_network

[WorldPopProject @WorldPopProject]

🚨New research: Spatio-temporal patterns of #health service delivery and access to maternal, child, and outpatient healthcare in #Volta region, #Ghana

A new approach to monitoring service changes using #HealthData & #SpatialAnalysis

🔗 https://t.co/T6JSFvbqWl

[OCHA Centre for Humanitarian Data @humdata]

WorldPop just added 1km resolution population count data for over 240 countries on HDX! The estimates cover 15 years from 2015 to 2030 and complement the existing 100m resolution datasets already available.

Explore the @WorldPopProject data here: https://t.co/dX5R8LAvuB

[WorldPopProject @WorldPopProject]

🌍 New preprint available on census-independent small area estimates of population & number of households in Cameroon: https://t.co/QHT457PyHN

📂 Datasets: https://t.co/PsJXq0Z7Kv

🖥️ R code: https://t.co/1Msb2lanNB

[WorldPopProject @WorldPopProject]

📣Beta test our new global #population #data - 2015 to 2030 🗺️

⬇️Now freely available to download ⬇️

🔗https://t.co/swWxJliQWQ

#HDX #HumanitarianData #Census

[WorldPopProject @WorldPopProject]

🚀 In preparation for #SomaliCensus we ran an 8-day Training the Trainers workshop 🌍 Boosting geospatial skills of @NBS_Somalia & @UNFPA_SOMALIA - playing a key role in enhancing the accuracy & efficiency of the census 💡#preEA #CapacityBuilding
👇
🔗https://t.co/mj3F7PJQrF

[Chigozie Edson Utazi @Chigedson]

Our new preprint investigates geostatistical, machine learning and hybrid approaches for mapping vaccination coverage and other health and development indicators. You can check it out via the link: https://t.co/hXwvnyIgQc.
#VaxPop
#WorldPop

[WorldPopProject @WorldPopProject]

Our new tool for subnational mapping of child and maternal health and development indicators: https://t.co/8oQKq37JOw

YouTube demonstration video: https://t.co/iCPlQDkL7R

[Ortis Yankey, Ph.D @YankeyOrtis]

@WorldPopProject, in collaboration with other technical experts, engaged with STATIN to explore and advance innovative methodologies for population modelling to support censuses. I had the privilege of leading the @WorldPopProject team in these discussions.

[WorldPopProject @WorldPopProject]

🌍 WorldPop is partnering with the University of Bristol on a new Wellcome Trust project to construct age/sex-structured gridded population future scenarios 🌏

🚨 36-month postdoc research position open - please reshare!:
https://t.co/W3mH15ETeq

[WorldPopProject @WorldPopProject]

In our second session we’re reflecting on leveraging geospatial data for global development. Our director Professor @AndyTatem has been reflecting on “A Decade of Demographic Mapping at WorldPop”, with an overview of some of our key work from the last 10 years. 🎉

#WorldPop10

[WorldPopProject @WorldPopProject]

Our next speaker is Professor Nyovani Madise @NMadise,
Dir. of Research for Sustainable Development Policies at @Afidep speaking on “Supporting decision makers with evidence to accelerate the achievement of the Sustainable Development Goals: Examples from Africa” 🌍 #WorldPop10

[WorldPopProject @WorldPopProject]

This afternoon we’re celebrating WorldPop’s 10 year anniversary. 🥳 To start today’s event, we’re delighted to welcome Professor @FalkinghamJane who is speaking on a Vision for Global Population Research.