Institution profile

University of Brescia

Academic institutioneurope · it
Official website
Research library49linked papers
Opportunities0open roles
Selected work

Representative Papers

Static and Dynamic Jamming Games Over Wireless Channels With Mobile Strategic Players

Jun 19, 2023arXiv.org

This paper investigates a zero-sum game between a mobile legitimate receiver and an interferer in wireless communications, using channel capacity as the payoff function—departing from prior works that assume static nodes. It introduces one-dimensional linear mobility as a core dynamic variable in the game formulation, establishing two scenario classes: static position configurations and dynamic position evolution, under three information structures—complete, incomplete, and delayed information. Theoretically, it derives closed-form solutions for static Nash equilibria and proposes a general design principle: “static solutions guide dynamic strategies.” Methodologically, it integrates game-theoretic analysis with reinforcement learning (RL) to efficiently approximate equilibria in high-dimensional dynamic strategy spaces. Experimental results demonstrate that the proposed RL-based policies exhibit robustness and practicality across diverse mobility patterns and information constraints.

1 citationsRead paper

Silent coverage failures in rare-event searches and a degeneracy index that predicts them

Aug 10, 2026

In searches for rare events, model misspecification can severely compromise the coverage of confidence intervals, particularly when the signal is non-negative and event counts are extremely low, rendering such issues difficult to detect. This work proposes the Poisson–Fisher degradation index $\mathcal{I}_{\mathrm{PF}}(\delta\nu; \vartheta_0)=(\beta,\gamma)$, integrating profile likelihood, Poisson–Fisher geometry, and tangent space projection to quantify how model bias affects the coverage of upper limits and discovery sensitivity. The analysis reveals that positive bias yields conservative upper limits but degrades discovery-side coverage, whereas negative bias may lead to undercoverage of upper limits. Deformations with low detectability yet high bias can evade standard diagnostics and require auxiliary constraints for identification. Imposing collinearity constraints to model such deformations restores nominal coverage across grid points at the cost of reduced sensitivity.

0 citationsRead paper

LAEF: A Lead-Agnostic ECG Foundation Model Towards Point-of-Care Diagnostics

Aug 04, 2026

This work addresses the limitation of existing ECG foundation models, which rely on fixed 12-lead inputs and suffer significant performance degradation when applied to portable devices that capture only one or two leads. To overcome this, we propose the first ECG foundation model natively supporting arbitrary lead subsets by formulating the ECG as a variable-scale spatiotemporal graph. Leveraging graph attention networks, physiologically inspired intra- and inter-lead connectivity strategies, and masked node modeling, our approach naturally generalizes to any lead configuration without zero-padding or architectural modifications. The model is pretrained on large-scale 12-lead ECGs using random lead subsampling to learn configuration-robust representations. Evaluated across 18 downstream tasks, it achieves an average AUROC improvement of 3.2 points over current zero-padding baselines under single- and dual-lead settings, while matching the performance of specialized models with over 12 times more parameters in the full 12-lead scenario.

0 citationsRead paper

SciSchema.org: A Multidisciplinary Collection of Schemas for Structured Scientific Process Descriptions

Jul 30, 2026

Scientific process descriptions are often embedded in unstructured text, hindering reproducibility, comparison, and automation. To address this challenge, this work presents the first cross-disciplinary, expert-driven repository of structured scientific process schemas, encompassing 16 expert-annotated patterns across five domains. Through a human-in-the-loop workflow, candidate schemas generated by large language models were iteratively refined via domain expert feedback, yielding reusable fields such as inputs, outputs, steps, and parameters. The resulting schemas are formalized in both JSON Schema and SHACL formats and accompanied by an integrated toolchain. The project also releases a comprehensive dataset—including schemas, intermediate artifacts, review records, and analysis scripts—to support knowledge graph construction, semantic publishing, and cross-study comparison.

0 citationsRead paper
Recent publications

Latest Papers

Silent coverage failures in rare-event searches and a degeneracy index that predicts them

Aug 10, 2026

In searches for rare events, model misspecification can severely compromise the coverage of confidence intervals, particularly when the signal is non-negative and event counts are extremely low, rendering such issues difficult to detect. This work proposes the Poisson–Fisher degradation index $\mathcal{I}_{\mathrm{PF}}(\delta\nu; \vartheta_0)=(\beta,\gamma)$, integrating profile likelihood, Poisson–Fisher geometry, and tangent space projection to quantify how model bias affects the coverage of upper limits and discovery sensitivity. The analysis reveals that positive bias yields conservative upper limits but degrades discovery-side coverage, whereas negative bias may lead to undercoverage of upper limits. Deformations with low detectability yet high bias can evade standard diagnostics and require auxiliary constraints for identification. Imposing collinearity constraints to model such deformations restores nominal coverage across grid points at the cost of reduced sensitivity.

0 citationsRead paper

LAEF: A Lead-Agnostic ECG Foundation Model Towards Point-of-Care Diagnostics

Aug 04, 2026

This work addresses the limitation of existing ECG foundation models, which rely on fixed 12-lead inputs and suffer significant performance degradation when applied to portable devices that capture only one or two leads. To overcome this, we propose the first ECG foundation model natively supporting arbitrary lead subsets by formulating the ECG as a variable-scale spatiotemporal graph. Leveraging graph attention networks, physiologically inspired intra- and inter-lead connectivity strategies, and masked node modeling, our approach naturally generalizes to any lead configuration without zero-padding or architectural modifications. The model is pretrained on large-scale 12-lead ECGs using random lead subsampling to learn configuration-robust representations. Evaluated across 18 downstream tasks, it achieves an average AUROC improvement of 3.2 points over current zero-padding baselines under single- and dual-lead settings, while matching the performance of specialized models with over 12 times more parameters in the full 12-lead scenario.

0 citationsRead paper

SciSchema.org: A Multidisciplinary Collection of Schemas for Structured Scientific Process Descriptions

Jul 30, 2026

Scientific process descriptions are often embedded in unstructured text, hindering reproducibility, comparison, and automation. To address this challenge, this work presents the first cross-disciplinary, expert-driven repository of structured scientific process schemas, encompassing 16 expert-annotated patterns across five domains. Through a human-in-the-loop workflow, candidate schemas generated by large language models were iteratively refined via domain expert feedback, yielding reusable fields such as inputs, outputs, steps, and parameters. The resulting schemas are formalized in both JSON Schema and SHACL formats and accompanied by an integrated toolchain. The project also releases a comprehensive dataset—including schemas, intermediate artifacts, review records, and analysis scripts—to support knowledge graph construction, semantic publishing, and cross-study comparison.

0 citationsRead paper

Pick-to-Learn Calibration of an MPC Policy for an Origin-to-Destination Flight Problem

Jul 17, 2026

This work addresses flight safety under uncertain crosswinds and sparsely connected no-fly zones by proposing a Pick-to-Learn–based model predictive control (MPC) calibration framework. The approach efficiently selects two most informative scenarios from a set of 400 wind-field realizations to calibrate an MPC policy governed by two hyperparameters. By integrating scenario optimization with data compression techniques, the method drastically reduces training data requirements while providing rigorous probabilistic risk guarantees. The learned policy successfully avoids all no-fly zones across the entire test suite and achieves a certified probability risk upper bound of 4.8% with confidence $1 - 10^{-5}$.

0 citationsRead paper