Featuredresearch2026
GEMF — EXIST 2026
Multimodal AI for sexism characterization in memes
3× #1Official first places
1 / 144Task 2.1 soft rank
0.741 → 0.880Validation AUC
GEMF — EXIST 2026Multimodal system
Sergio Ortiz · Data Science · Valencia
I build intelligent systems from real-world data.
I design and ship data products, machine-learning models and reproducible systems for meaningful real-world problems.
UrbanFlow ValenciaVerified project view
GEMFMultimodal system
UPV-EARTHResearch atlas
01 · Selected work
Systems, not just models.
Each case connects the problem, the data, the technical decision and how it was made usable.
Featuredsystem2026
UrbanFlow Valencia
Traffic prediction, facility siting and model monitoring
24Hourly models
1,158Traffic zones
44.4 veh/hTest MAE
UrbanFlow ValenciaVerified project view
Featuredresearch2026
UPV-EARTH
Mapping university research to the Planetary Boundaries
31,634Scientific abstracts
9Planetary Boundaries
72.1%Prompt v4 Top-1
UPV-EARTHResearch atlas
Featuredsystem2025
AION
Predictive traffic intelligence for emergency mobility
0.971Test R²
44.5 veh/hTest MAE
17.4%Test sMAPE
AIONVerified project view
02 · Capabilities
Explore by capability.
03 · GitHub
Recent activity.
04 · Notes
Behind the result.
Using an LLM to translate, not to judgeMultimodal system
Using an LLM to translate, not to judge
The design decision behind GEMF: turn visual and pragmatic meaning into structured evidence before supervised prediction.
Read noteA model is not finished when evaluation endsVerified project view
A model is not finished when evaluation ends
What UrbanFlow adds around the model: publishing, an API, monitoring and decision logic.
Read noteSO
05 · About
I care about what happens after the model works.
I work at the intersection of data science, artificial intelligence, software engineering and automation, with a focus on useful systems for real-world environments.
More about me