5 papers
RealHarm: A Collection of Real-World Language Model Application Failures
Pierre Le Jeune, Jiaen Liu, Luca Rossi +1
Language model deployments in consumer-facing applications introduce numerous risks. While existing research on harms and hazards of such applications follows top-down approaches d…
TikTok StitchGraph: Characterizing communication patterns on TikTok through a collection of interaction networks
Mads Høgenhaug, Marcus Friis, Morten Pedersen +1
We present TikTok StitchGraph: a collection of 36 graphs based on TikTok stitches. With its rapid growth and widespread popularity, TikTok presents a compelling platform for study,…
PHGNN: A Novel Prompted Hypergraph Neural Network to Diagnose Alzheimer's Disease
Chenyu Liu, Luca Rossi
The accurate diagnosis of Alzheimer's disease (AD) and prognosis of mild cognitive impairment (MCI) conversion are crucial for early intervention. However, existing multimodal meth…
Reaction-diffusion model for a population structured in phenotype and space I -- Criterion for persistence
Nathanaël Boutillon, Luca Rossi
We consider a reaction-diffusion model for a population structured in phenotype. We assume that the population lives in a heterogeneous periodic environment, so that a given phenot…
Generalized principal eigenvalues for parabolic operators in bounded domains
Henri Berestycki, Grégoire Nadin, Luca Rossi
We introduce here new generalized principal eigenvalues for linear parabolic operators with heterogeneous coefficients in space and time. We consider a bounded spatial domain and a…