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Catalina A. Vallejos

4 papers hereh-index 323 citations11 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • middle author2
  • last author2

Across the 4 of 4 papers where every author was matched, so the position is known.

fields
  • cs.LG2
  • stat.ML2

identity via Semantic Scholar / OpenAlex

activity
20242026
collaborators

4 papers

stat.ML2026

A reproducible and extensible framework for benchmarking competing risks survival models

Begoña B. Sierra, Colin McLean, Peter S. Hall +2

A wide range of statistical and machine learning methods have been proposed for survival analysis with competing risks, where the occurrence of one event (i.e., cancer death) precl…

stat.ML2025

The C-index Multiverse

Begoña B. Sierra, Colin McLean, Peter S. Hall +1

Quantifying out-of-sample discrimination performance for time-to-event outcomes is a fundamental step for model evaluation and selection in the context of predictive modelling. The…

cs.LG2024

AMUSE: Adaptive Model Updating using a Simulated Environment

Louis Chislett, Catalina A. Vallejos, Timothy I. Cannings +1

Prediction models frequently face the challenge of concept drift, in which the underlying data distribution changes over time, weakening performance. Examples can include models wh…

cs.LG2024

Ethical considerations of use of hold-out sets in clinical prediction model management

Louis Chislett, Louis JM Aslett, Alisha R Davies +2

Clinical prediction models are statistical or machine learning models used to quantify the risk of a certain health outcome using patient data. These can then inform potential inte…

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