Featuredresearch2026
GEMF — EXIST 2026
Multimodal AI for sexism characterization in memes
3× #1Official first places
#1Task 2.1 soft rank
0.741 → 0.880Validation AUC
Sergio Ortiz · Data Science · Valencia
I build intelligent systems from real-world data.
I design and ship data products, machine-learning models, automation and reproducible systems for organisations and meaningful real-world problems.
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
Featuredresearch2026
UPV-EARTH
Mapping university research to the Planetary Boundaries
31,634Scientific abstracts
9Planetary Boundaries
72.1%Prompt v4 Top-1
Featuredsystem2025
AION
Predictive traffic intelligence for emergency mobility
0.971Test R²
44.5 veh/hTest MAE
17.4%Test sMAPE
02 · Leadership · Community
Beyond the projects.
Coordinate, connect and turn ideas into initiatives.
Sigma Data Club, UPV Investment Club, peer tutoring and The Pink Force are a real part of my profile: operational leadership, communication, mentoring, social impact and organisational collaboration.
100+active students coordinated
467happlied AI programme
4leadership, mentoring and ambassador roles
03 · Capabilities · Connections
Explore the portfolio map.
01Machine Learning02LLMs03MLOps04Optimisation05Data Engineering06Research07Smart Cities08Automation09Multimodal AI10Data Visualisation
04 · GitHub
Recent activity.
05 · 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 note06 · About
I care about what happens after the model works.
I build end-to-end data and AI systems for real organisations and real decisions. My work brings together modelling, software and automation; beyond the code, I lead university initiatives and coordinate teams.
More about me