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Alexandra Lefebvre

3 papers hereh-index 213 citations9 works total

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

author position
  • first author2
  • middle author1

Across the 3 of 3 papers where every author was matched, so the position is known.

fields
  • q-bio.QM1
  • stat.AP1
  • stat.CO1

identity via Semantic Scholar / OpenAlex

activity
20172026
collaborators

3 papers

stat.CO2026

Observed Fisher Information in hidden Markov models - Application to a noisy Gaussian random walk

Alexandra Lefebvre, Grégory Nuel

In this work we provide analytical and closed-form expressions for the exact computation of the score and the observed Fisher information matrix in a Gaussian random walk observed…

q-bio.QM2025

Unsupervised detection and fitness estimation of emerging SARS-CoV-2 variants. Application to wastewater samples (ANRS0160)

Alexandra Lefebvre, Vincent Maréchal, Arnaud Gloaguen +3

Repeated waves of emerging variants during the SARS-CoV-2 pandemics have highlighted the urge of collecting longitudinal genomic data and developing statistical methods based on ti…

stat.AP2017

Computing Individual Risks based on Family History in Genetic Disease in the Presence of Competing Risks

G Nuel, Antoine Lefebvre, O Bouaziz

When considering a genetic disease with variable age at onset (ex: diabetes , familial amyloid neuropathy, cancers, etc.), computing the individual risk of the disease based on fam…

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