activity
20192026
most citedComparison of tree-based ensemble algorithms for merging satellite and earth-observed precipitation data at the daily time scale

26 citations · 90 across the 13 of their papers we have counts for

collaborators

19 papers

math.ST2026

Kling-Gupta linear regression

Hristos Tyralis, Georgia Papacharalampous

Kling-Gupta efficiency () is a model performance evaluation metric widely used in hydrology, but its properties as a statistical estimator have remained unexplored. W…

stat.ML2026

Learning with the Nash-Sutcliffe loss

Hristos Tyralis, Georgia Papacharalampous

The Nash-Sutcliffe efficiency () is a widely used, positively oriented relative measure for evaluating forecasts across multiple time series. However, it lacks a decisi…

stat.ME2025

Loss functions arising from the index of agreement

Hristos Tyralis, Georgia Papacharalampous

We examine the theoretical properties of the index of agreement loss function , the negatively oriented counterpart of Willmott's index of agreement, a common metric in enviro…

stat.ML2025

Variable transformations in consistent loss functions

Hristos Tyralis, Georgia Papacharalampous

The empirical use of variable transformations within (strictly) consistent loss functions is widespread, yet a theoretical understanding is lacking. To address this gap, we develop…

cs.CY202411 cited

Transforming disaster risk reduction with AI and big data: Legal and interdisciplinary perspectives

Kwok P Chun, Thanti Octavianti, Nilay Dogulu +24

Managing complex disaster risks requires interdisciplinary efforts. Breaking down silos between law, social sciences, and natural sciences is critical for all processes of disaster…

physics.soc-ph2024

Unravelling compound risks of hydrological extremes in a changing climate: Typology, methods and futures

Kwok P Chun, Thanti Octavianti, Georgia Papacharalampous +21

We have witnessed and experienced increasing compound extreme events resulting from simultaneous or sequential occurrence of multiple events in a changing climate. In addition to a…