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Assessing the Impact of Contextual Information in Hate Speech Detection
(2023)
Social networks and other digital media deal with huge amounts of user-generated contents
where hate speech has become a problematic more and more relevant. A great effort has been made to
develop automatic tools for its ...
Facet-generating procedures for the maximum-impact coloring polytope
(2023)
Given two graphs G = (V, EG) and H = (V, EH) over the same set of vertices
and given a set of colors C, the impact on H of a coloring c : V → C of G,
denoted I(c), is the number of edges ij ∈ EH such that c(i) = c(j). ...
The maximum 2D subarray polytope: facet-inducing inequalities and polyhedral computations
(2022)
Given a matrix with real-valued entries, the maximum 2D subarray problem
consists in finding a rectangular submatrix with consecutive rows and columns
maximizing the sum of its entries. In this work we start a polyhedral ...
The Value of Observing the Buyer Arrival Time in Dynamic Pricing
(2020)
We consider a dynamic pricing problem where a firm sells one item to a single buyer in order to maximize expected revenues. The firm commits to a price function over an infinite horizon. The buyer arrives at some random ...
The presence of irrelevant alternatives paradoxically increases confidence in perceptual decisions
(Cognition, 2023)
Confidence in perceptual decisions is thought to reflect the probability of being correct.
According to this view, confidence should be unaffected or minimally reduced by the
presence of irrelevant alternatives. To test ...
Bone-GAN: Generation of virtual bone microstructure of high resolution peripheral quantitative computed tomography
(Medical PhysicsAmerican Association of Physicists in Medicine, 2023)
Background:Data-driven development of medical biomarkers of bone requires
a large amount of image data but physical measurements are generally too
restricted in size and quality to perform a robust training.
Purpose: ...
Partisanship Predicts COVID-19 Vaccine Brand Preference: The Insightful Case of Argentina
(2022)
The COVID-19 pandemic highlighted the importance of not only diminishing the resistance to vaccine adoption in general, but also to reduce both real and perceived barriers to a swift vaccination campaign. One major problem ...
NORHA: A NORmal Hippocampal Asymmetry Deviation Index Based on One-Class Novelty Detection and 3D Shape Features
(Brain TopographySpringer, 2023)
Radiologists routinely analyze hippocampal asymmetries in magnetic resonance (MR) images as a biomarker for neurodegenerative conditions like epilepsy and Alzheimer’s Disease. However, current clinical tools rely on either ...
Government Turnover and External Financial Assistance
(Universidad Torcuato Di Tella, 2023)
We study the political incentives shaping governments’ decisions to seek assistance from
a lender of last resort. We propose that re-elected incumbents are more reluctant than newly
elected governments to request assistance, ...
A better alignment between chronotype and school timing is associated with lower grade retention in adolescents
(NPJ Science of Learning, 2023)
Schools start early in the morning all over the world, contrasting with adolescents’ late chronotype. Interestingly, lower academic
performance (i.e. grades or qualifications) was associated with later chronotypes. However, ...