Pedro P. Sanchez

Confounder-aware foundation modeling for accurate phenotype profiling in cell imaging

Giorgos Papanastasiou, Pedro P. Sanchez, Argyrios Christodoulidis, Guang Yang et autres

Image-based profiling is rapidly transforming drug discovery, offering unprecedented insights into cellular responses. However, experimental variability hinders accurate identification of mechanisms of action (MoA) and compound targets. Existing methods commonly fail to generalize to novel compounds, limiting their utility in exploring uncharted …

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MemControl: Mitigating Memorization in Diffusion Models via Automated Parameter Selection

Raman Dutt, Ondrej Bohdal, Pedro P. Sanchez, Sotirios A. Tsaftaris et autres

Diffusion models excel in generating images that closely resemble their training data but are also susceptible to data memorization, raising privacy, ethical, and legal concerns, particularly in sensitive domains such as medical imaging. We hypothesize that this memorization stems from the overparameterization …

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The Resident Subsidy Impact on Air Carrier Route Development in Canary Island

Roberto Rendeiro Martı́n-Cejas, Máximo Méndez, Pedro P. Sanchez

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RadEdit: Stress-Testing Biomedical Vision Models via Diffusion Image Editing

Fernando Pérez‐García, Sam Bond-Taylor, Pedro P. Sanchez, Boris van Breugel et autres

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Capacity Control is an Effective Memorization Mitigation Mechanism in Text-Conditional Diffusion Models

Raman Dutt, Pedro P. Sanchez, Ondrej Bohdal, Sotirios A. Tsaftaris et autres

In this work, we present compelling evidence that controlling model capacity during fine-tuning can effectively mitigate memorization in diffusion models. Specifically, we demonstrate that adopting Parameter-Efficient Fine-Tuning (PEFT) within the pre-train fine-tune paradigm significantly reduces memorization compared to traditional full fine-tuning approaches. …

MemControl: Mitigating Memorization in Diffusion Models via Automated Parameter Selection

Raman Dutt, Ondrej Bohdal, Pedro P. Sanchez, Sotirios A. Tsaftaris et autres

Diffusion models excel in generating images that closely resemble their training data but are also susceptible to data memorization, raising privacy, ethical, and legal concerns, particularly in sensitive domains such as medical imaging. We hypothesize that this memorization stems from the overparameterization …

RadEdit: stress-testing biomedical vision models via diffusion image editing

Fernando Pérez‐García, Sam Bond-Taylor, Pedro P. Sanchez, Boris van Breugel et autres

Biomedical imaging datasets are often small and biased, meaning that real-world performance of predictive models can be substantially lower than expected from internal testing. This work proposes using generative image editing to simulate dataset shifts and diagnose failure modes of biomedical vision …

Neural networks memorise personal information from one sample

John Hartley, Pedro P. Sanchez, Fasih Haider, Sotirios A. Tsaftaris

Deep neural networks (DNNs) have achieved high accuracy in diagnosing multiple diseases/conditions at a large scale. However, a number of concerns have been raised about safeguarding data privacy and algorithmic bias of the neural network models. We demonstrate that unique features (UFs), …

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84 Advances, Challenges and Prospects for the Sustainable Use of the chigüiro in Colombia

Hugo F. López-Arévalo, Elizabeth Mesa, Olga L. Montenegro, Pedro P. Sanchez et autres

Abstract The sustainable use of chigüiro or capybara is a strategy proposal to prevent the decline of the species population by maintaining and conserving appropriate habitats, reducing illegal capture, promoting its recognition, and achieving a better distribution of its benefits and its …

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GIS Approach Applied to Tourist Bus Route Design on Lanzarote Island

Roberto Rendeiro Martı́n-Cejas, Rafael Suárez‐Vega, Pedro P. Sanchez

Current public transport supply on the Island of Lanzarote is clearly insufficient, and opportunities to substitute private automobiles are extremely limited, for residents and tourists alike. Therefore, this paper analyzes the possibility of introducing a tourist bus service to connect Lanzarote’s main …

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European Environmental Policy for Road Transport: Analysis of the Perverse Effects Generated and Proposals for a Good Practice Guide

Pedro P. Sanchez, Alassane Ballé Ndiaye, Roberto Rendeiro Martı́n-Cejas

Plug-In Hybrid Electric Vehicles (PHEVS): A possible perverse effect generated by Environmental Policies

Pedro P. Sanchez, Alassane Ballè Ndiaye, Roberto Rendeiro Martı́n-Cejas

The automotive industry is one of the largest polluters, affecting air quality in urban areas. For thisreason, the effect of the public policies on the sector is very important in economic and social terms.In this sense, one of the policies has been …