collaborators

5 papers

cs.AI2026

Stay Within Your Bounds: Distance-Guided Decoding for Guaranteed Context-Free Grammar Compliance

Vincenzo Collura, Karim Tit, Eleonora Giunchiglia +2

Grammar-constrained decoding helps large language models produce syntactically valid structured outputs, such as code, JSON, and SQL. For context-free grammars, many practical deco…

cs.AI2025

KCLNet: Physics-Informed Power Flow Prediction via Constraints Projections

Pantelis Dogoulis, Karim Tit, Maxime Cordy

In the modern context of power systems, rapid, scalable, and physically plausible power flow predictions are essential for ensuring the grid's safe and efficient operation. While t…

cs.AI2025

Constraint-Guided Prediction Refinement via Deterministic Diffusion Trajectories

Pantelis Dogoulis, Fabien Bernier, Félix Fourreau +2

Many real-world machine learning tasks require outputs that satisfy hard constraints, such as physical conservation laws, structured dependencies in graphs, or column-level relatio…

cs.LG2025

ABS: Enforcing Constraint Satisfaction On Generated Sequences Via Automata-Guided Beam Search

Vincenzo Collura, Karim Tit, Laura Bussi +2

Sequence generation and prediction form a cornerstone of modern machine learning, with applications spanning natural language processing, program synthesis, and time-series forecas…

cs.LG2025

On the Robustness of Tabular Foundation Models: Test-Time Attacks and In-Context Defenses

Mohamed Djilani, Thibault Simonetto, Karim Tit +4

Recent tabular Foundational Models (FM) such as TabPFN and TabICL, leverage in-context learning to achieve strong performance without gradient updates or fine-tuning. However, thei…