2 papers
cs.LG2026
When local gains fail to transfer: Frozen Earth-observation embeddings across wildfires
Philipp Stark, Alexandros Sopasakis, Ola Hall
Frozen Earth-observation embeddings are judged almost entirely by spatially blocked cross-validation inside one study region. We show that this number does not predict accuracy in…
cs.LG2025
Using Text-Based Life Trajectories from Swedish Register Data to Predict Residential Mobility with Pretrained Transformers
Philipp Stark, Alexandros Sopasakis, Ola Hall +1
We transform large-scale Swedish register data into textual life trajectories to address two long-standing challenges in data analysis: high cardinality of categorical variables an…