Scientific Publications of the University of Toulouse II Le Mirail
Not a member yet
92205 research outputs found
Sort by
A Multi-LLM Agent System for Modular Ontology Population: A Case Study on ADHD
No full textInternational audienceModular ontologies play a crucial role in structuring and interpreting complex knowledge, where they enable the representation of contextual information from diverse sources. To fully exploit these ontological models, a population phase is essential, involving the enrichment of the ontology with concrete instances. However, the automatic population of such ontologies from heterogeneous sources remains a significant challenge. Traditional rule-based or supervised learning approaches require extensive human supervision and often lack generalizability. The use of Large Language Models (LLMs) has recently emerged as a promising alternative, but their limitations become evident in complex modular architectures. This study proposes a multi-agent approach for the automatic population of modular ontologies. Each agent is an LLM guided by precise instructions and enhanced with appropriate tools, dedicated to one or more ontological modules. Our methodology combines advanced prompt engineering techniques with strategies for hallucination mitigation to ensure extractions that are both accurate and compliant with the ontology’s specifications. Our experimental setup involves extracting RDF triples from diagnostic PDF reports and activity schedules stored in a MongoDB database, aimed at the automatic population of an ADHD ontology. The results show that our multi-agent approach consistently outperforms mono-agent methods relying on a single LLM, regardless of the configuration used. We observe significant gains in precision, recall, and F1-score as well as a notable reduction in errors and hallucinations. This study demonstrates both the feasibility and effectiveness of a multi-agent architecture for the automatic population of a modular ontology
Multi-criteria and multi-stage environmental study of Pl@ntnet service for the year 2024
No full textIn this study, we focus our investigation on Pl@ntNet, a citizen science platform, which re- lies on Artificial Intelligence (AI) models to identify plant species. Pl@ntNet provides a large-scale infrastructure supporting millions of users in over 200 countries. At this stage of deployment, and with years of experience developing the platform, Pl@ntNet is committed to understanding the environmental impacts of its identification service and contributing to the search for reduction opportunities. Our investigations assess the associated environmental impacts of Pl@ntNet for the year 2024. We based our approach on multi-criteria LCA, considering multiple impact type and the different life-cycle phases
Dispersion for the Schrödinger equation on the line with short-range array of delta potentials
No full textWe study dispersive properties of the one-dimensional Schrödinger equation with a short-range array of delta interactions. More precisely, we consider the self-adjoint operator obtained by perturbing the free Laplacian on the line with a real-valued sequence of Dirac delta potentials and belonging to weighted ℓ^1(Z) spaces. Under suitable decay assumptions on the coupling constants and in the absence of a zero-energy resonance, we establish the L^1 (R) → L^∞ (R) dispersive estimate with decay rate |t|^{-1/2} for the associated Schrödinger group. The proof relies on a limiting absorption principle in weighted spaces, explicit representation of the resolvent kernel in terms of Jost solutions and Born series expansion of the Friedrichs extension of the perturbed operator
Use as directed? A comparison of software tools intended to check rigor and transparency of published work
No full textInternational audienceThe causes of the reproducibility crisis include lack of standardization and transparency in scientific reporting. Checklists such as ARRIVE and CONSORT seek to improve transparency, but they are not always followed by authors and peer review often fails to identify missing items. To address these issues, there are several automated tools that have been designed to check different rigor criteria. We have conducted a broad comparison of 11 automated tools across 9 different rigor criteria from the ScreenIT group. We found some criteria, including detecting open data, where the combination of tools showed a clear winner, a tool which performed much better than other tools. In other cases, including detection of inclusion and exclusion criteria, the combination of tools exceeded the performance of any one tool. We also identified key areas where tool developers should focus their effort to make their tool maximally useful. We conclude with a set of insights and recommendations for stakeholders in the development of rigor and transparency detection tools. The code and data for the study is available at https://github.com/PeterEckmann1/tool-comparison
Investir, produire, exporter : les actionnaires de la Compagnie du Levant et les manufactures languedociennes (1670–1695)
No full textEn s’intéressant aux actionnaires de la Compagnie du Levant, cet article examine le rôle des investisseurs privés dans la mise en œuvre de la politique industrielle colbertiste en Languedoc. À travers les trajectoires de trois actionnaires — Pennautier, Fredian et Magy —, l'article montre comment ces acteurs articulent capitaux privés, réseaux institutionnels et soutiens publics pour relier les manufactures drapières aux circuits d'exportation méditerranéens, donnant naissance à une forme originale de « capitalisme d'interface » à la fin du XVIIe siècle
Modeling Trust Judgments in Educational Videos: An Exploratory Predictive Approach Integrating Navigation Behavior, Attitude, and Disposition to Critical Thinking
No full textThis study investigates how navigation behaviors, attitude, and critical thinking disposition predict trust attribution in educational videos among middle and high school students. Grounded in the hypothesis that epistemic judgments are shaped by a multidimensional interplay of cognitive, affective, and dispositional factors, we analyzed data collected from a video-based learning platform integrating selected videos and reflective questioning on controversial socio-scientific issues. Partial correlation analyses revealed significant associations between students’ interaction patterns with the videos (e.g., seeking, pausing), attitude, and critical thinking disposition. Notably, a positive attitude about video content was negatively associated with critical thinking disposition, suggesting that students’ positive perception about the topic may attenuate epistemic vigilance. Predictive modeling confirmed that including attitudinal and dispositional variables significantly improves the classification accuracy of normative trust judgments compared to models based on navigation traces alone. The Critical Thinking Disposition indicator (CTDI) proved to be a robust predictor of evaluative success
Équipes de prévention en contexte contraint : agentivité, affects et recompositions organisationnelles
No full textInternational audienceCette communication analyse les effets des réformes organisationnelles sur les collectifs de travail dans les organisations de prévention en santé. En s’appuyant sur le cas des structures de dépistage organisé des cancers, elle montre comment les injonctions institutionnelles et la standardisation des messages via la régionalisation reconfigurent les pratiques communicationnelles, tout en affectant l’agentivité des équipes. Les affects - souvent tus ou disqualifiés - sont envisagés comme des analyseurs des tensions organisationnelles, mais aussi comme des leviers de recomposition des marges de manœuvre et des formes d’engagement professionnel
Analysis of the steady solutions of the Fisher's infinitesimal model; a Hilbertian approach
No full textWe provide an asymptotic analysis of a nonlinear integro-differential equation which describes the evolutionary dynamics of a population which reproduces sexually and which is subject to selection and competition. The sexual reproduction is modeled via a nonlinear integral term, known as the Fisher's 'infinitesimal model'. We consider a small segregational variance regime, where a parameter in the infinitesimal model, which measures the deviation between the trait of the offspring and the mean parental trait, is small with respect to the selection variance. In this regime, we characterize the steady states of the problem and analyze their stability. Our method relies on a spectral analysis involving Hermite polynomials, highlighting the specific structure of the nonlinear reproduction term
Heide Goettner-Abendroth et la pseudo-science des « Recherches matriarcales modernes »
No full texthttps://tempspresents.com/2026/02/07/heide-goettner-abendroth-pseudo-science-recherches-matriarcales-modernes/Cet article propose une analyse critique des travaux de Heide Goettner-Abendroth, figure des « Recherches matriarcales modernes ». Il examine sa thèse centrale selon laquelle la domination masculine serait un phénomène tardif, apparu après le Néolithique, et aurait succédé à des sociétés matriarcales égalitaires. Les auteur·rices rappellent que HGA redéfinit le matriarcat comme un système fondé sur la matrilinéarité, le partage des ressources et des formes décisionnelles consensuelles, qu’elle distingue d’un simple patriarcat inversé. L’article souligne le caractère problématique de sa méthode : usage sélectif des sources ethnographiques et archéologiques, absence de véritable discussion contradictoire et faible inscription dans les cadres académiques. Il met en évidence des généralisations hâtives et des rapprochements fragiles entre mythologie, symbolique et organisation sociale. Les critiques portent aussi sur la tendance à disqualifier par principe les travaux ne confirmant pas l’hypothèse d’un âge d’or matriarcal. Cette posture conduit à substituer un récit idéologique à une démonstration fondée sur des données contrôlables. Le succès éditorial de ces ouvrages est interprété comme révélateur d’attentes contemporaines fortes autour de la question des origines du patriarcat
Generalized local jacobians and commutative group stacks
No full textIn [Pierre Colmez and Jean-Pierre Serre, editors. Correspondance Grothendieck-Serre, volume 2 of Documents Mathématiques (Paris) [Mathematical Documents (Paris)]. Société Mathématique de France, Paris, 2001, Page 109] Grothendieck sketches the construction of a complex J* (X) or commutative pro-algebraic groups, associated to a smooth variety X, and for which each J i (X) is a product of local factors called the local generalized jacobians. The purpose of this note is to recast this construction in the setting of higher algebraic group stacks for the fppf topology. For this, we introduce a notion of algebraic homology associated to a scheme which is a universal object computing fppf cohomology with coefficients in group schemes. We endow this algebraic homology with a filtration by dimension of supports, and prove that, when X is smooth, J * (X) appears as the E 1-page of the corresponding spectral sequence. In a final part we partially extends our constructions and results over arbitrary bases