FS
Fabrizio Silvestri
cs.LGcs.AIcs.IRcs.CLcs.CVstat.MLcs.SIcs.CYcs.MMcs.CR
On Valency
published · living versionsW_9xettkzm·v1 · currentpublished
On the Token Collapse Phenomenon in Textual Graph Soft Prompting
with Andrea Giuseppe Di Francesco, Rishabh Jain, Franco Maria Nardini, Nicola Tonellotto +1
1 version
Preprints & journals
99 papers in the corpus · 2004–2026On the Token Collapse Phenomenon in Textual Graph Soft Prompting2610.31572v1 · Andrea Giuseppe Di Francesco, Rishabh Jain, Franco Maria Nardini et al.2026 · 0 citationsarXivon Valency
How AI agents search.42905662 · Pezzuti, Francesca, Frieder, Ophir, Silvestri, Fabrizio et al.2026 · 0 citationsPloS one. 2026;21(10):e0360157
LocaLeJEPA: Maximum Entropy Representations under Geometric Priors2610.28458v1 · Kartik Tandon, Alessio Borgi, Pavel Snopov et al.2026 · 0 citationsarXiv
Cross-Modal Attention Acts as a Frequency Filter: Why Verbose Prompts Improve Robustness in Vision-Language Models2609.20139v1 · Farooq Ahmad Wani, Maria Sofia Bucarelli, Mujtaba Hussain Mirza et al.2026 · 0 citationsarXiv
SURF: Subtractive Updates for Recommender Forgetting2609.18695v1 · Filippo Betello, Antonio Purificato, Nicola Tonellotto et al.2026 · 0 citationsarXiv
QUORUM: QUality-Optimized Routing Using Multiple annotators2608.27974v1 · Antonio Purificato, Maria Sofia Bucarelli, Andrea Bacciu et al.2026 · 0 citationsProceedings of the 2026 Conference on Empirical Methods in Natural Language Processing, pages 26873-26890, Budapest, Hungary, October 2026
Equivariant Sheaf Neural Networks: Learning Geometric Transport on Graphs2608.28853v3 · Alessio Borgi, Mario Severino, Fabrizio Silvestri et al.2026 · 0 citationsarXiv
Efficient Recommendations via Graph Coarsening and Label Propagation2607.22287v1 · Alessandro Sbandi, Federico Siciliano, Fabrizio Silvestri2026 · 0 citationsarXiv
Art Beyond Semantics: Sheaf-Informed Contrastive Learning for Multi-Relational Representations2607.16321v1 · Ludovica Schaerf, Antonio Purificato, Piera Riccio et al.2026 · 0 citationsarXiv
Where does Absolute Position come from in decoder-only Transformers?2606.06160v1 · Valeria Ruscio, Umberto Nanni, Fabrizio Silvestri2026 · 0 citationsarXiv
Select, Label, Evaluate: Active Testing in NLP2603.21840v2 · Antonio Purificato, Maria Sofia Bucarelli, Andrea Bacciu et al.2026 · 0 citationsProceedings of the 2026 Conference on Empirical Methods in Natural Language Processing, pages 26566-26584, Budapest, Hungary, October 2026
A Picture of Agentic Search2602.17518v1 · Francesca Pezzuti, Ophir Frieder, Fabrizio Silvestri et al.2026 · 0 citationsarXiv
Concept-Enhanced Multimodal RAG: Towards Interpretable and Accurate Radiology Report Generation2602.15650v1 · Marco Salme, Federico Siciliano, Fabrizio Silvestri et al.2026 · 1 citationarXiv
Same Answer, Different Representations: Hidden instability in VLMs2602.06652v2 · Farooq Ahmad Wani, Alessandro Suglia, Rohit Saxena et al.2026 · 0 citationsarXiv
Statistical Foundations of DIME: Risk Estimation for Practical Index Selection2601.05649v1 · Giulio D'Erasmo, Cesare Campagnano, Antonio Mallia et al.2026 · 1 citationProceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 2: Short Papers), 2026, pages 722-730
Polynomial Neural Sheaf Diffusion: A Spectral Filtering Approach on Cellular Sheaves2512.00242v3 · Alessio Borgi, Fabrizio Silvestri, Pietro Lio2025 · 0 citationsarXiv
PISA: Prioritized Invariant Subgraph Aggregation for Out-of-Distribution Generalization on Graphs2511.22435v3 · Ali Ghasemi, Farooq Ahmad Wani, Maria Sofia Bucarelli et al.2025 · 0 citationsarXiv
Redefining Retrieval Evaluation in the Era of LLMs2510.21440v1 · Giovanni Trappolini, Florin Cuconasu, Simone Filice et al.2025 · 0 citationsarXiv
Attention Sinks in Diffusion Language Models2510.15731v2 · Maximo Eduardo Rulli, Simone Petruzzi, Edoardo Michielon et al.2025 · 0 citationsarXiv
Titans Revisited: A Lightweight Reimplementation and Critical Analysis of a Test-Time Memory Model2510.09551v1 · Gavriel Di Nepi, Federico Siciliano, Fabrizio Silvestri2025 · 0 citationsarXiv
Directional Sheaf Hypergraph Networks: Unifying Learning on Directed and Undirected Hypergraphs2510.04727v2 · Emanuele Mule, Stefano Fiorini, Antonio Purificato et al.2025 · 0 citationsarXiv
Enhancing XAI Narratives through Multi-Narrative Refinement and Knowledge Distillation2510.03134v2 · Flavio Giorgi, Matteo Silvestri, Cesare Campagnano et al.2025 · 0 citationsarXiv
Evading Overlapping Community Detection via Proxy Node Injection2509.21211v1 · Dario Loi, Matteo Silvestri, Fabrizio Silvestri et al.2025 · 0 citationsarXiv
On Task Vectors and Gradients2508.16082v6 · Luca Zhou, Daniele Solombrino, Donato Crisostomi et al.2025 · 0 citationsarXiv
What are you sinking? A geometric approach on attention sink2508.02546v1 · Valeria Ruscio, Umberto Nanni, Fabrizio Silvestri2025 · 1 citationarXiv
Generalizability vs. Counterfactual Explainability Trade-Off2505.23225v1 · Fabiano Veglianti, Flavio Giorgi, Fabrizio Silvestri et al.2025 · 0 citationsarXiv
Do RAG Systems Really Suffer From Positional Bias?2505.15561v2 · Florin Cuconasu, Simone Filice, Guy Horowitz et al.2025 · 3 citationsarXiv
One Search Fits All: Pareto-Optimal Eco-Friendly Model Selection2505.01468v1 · Filippo Betello, Antonio Purificato, Vittoria Vineis et al.2025 · 0 citationsarXiv
MASS: MoErging through Adaptive Subspace Selection2504.05342v2 · Donato Crisostomi, Alessandro Zirilli, Antonio Andrea Gargiulo et al.2025 · 0 citationsarXiv
The Majority Vote Paradigm Shift: When Popular Meets Optimal2502.12581v4 · Antonio Purificato, Maria Sofia Bucarelli, Anil Kumar Nelakanti et al.2025 · 0 citationsProceedings of the 29th International Conference on Artificial Intelligence and Statistics (AISTATS), PMLR 300:1711-1719, 2026
COMBINEX: A Unified Counterfactual Explainer for Graph Neural Networks via Node Feature and Structural Perturbations2502.10111v1 · Flavio Giorgi, Fabrizio Silvestri, Gabriele Tolomei2025 · 0 citationsarXiv
Countering Overfitting with Counterfactual Examples2502.09193v2 · Flavio Giorgi, Fabiano Veglianti, Fabrizio Silvestri et al.2025 · 0 citationsarXiv
The Right to Hide: Masking Community Affiliation via Minimal Graph Rewiring2502.00432v2 · Matteo Silvestri, Edoardo Gabrielli, Fabrizio Silvestri et al.2025 · 0 citationsarXiv
Training-Free Style and Content Transfer by Leveraging U-Net Skip Connections in Stable Diffusion2501.14524v2 · Ludovica Schaerf, Andrea Alfarano, Fabrizio Silvestri et al.2025 · 0 citationsarXiv
A graph neural network-based model with out-of-distribution robustness for enhancing antiretroviral therapy outcome prediction for HIV-1.39808870 · Di Teodoro, Giulia, Siciliano, Federico, Guarrasi, Valerio et al.2025 · 18 citationsComputerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society. 2025;120:102484
ECLIPSE: Contrastive Dimension Importance Estimation with Pseudo-Irrelevance Feedback for Dense Retrieval2412.14967v1 · Giulio D'Erasmo, Giovanni Trappolini, Nicola Tonellotto et al.2024 · 2 citationsarXiv
Static Pruning in Dense Retrieval using Matrix Decomposition2412.09983v1 · Federico Siciliano, Francesca Pezzuti, Nicola Tonellotto et al.2024 · 0 citationsarXiv
Energy Guided smoothness to improve Robustness in Graph Classification2412.08419v2 · Farooq Ahmad Wani, Maria Sofia Bucarelli, Andrea Giuseppe Di Francesco et al.2024 · 0 citationsarXiv
Task Singular Vectors: Reducing Task Interference in Model Merging2412.00081v3 · Antonio Andrea Gargiulo, Donato Crisostomi, Maria Sofia Bucarelli et al.2024 · 17 citationsarXiv
STLight: a Fully Convolutional Approach for Efficient Predictive Learning by Spatio-Temporal joint Processing2411.10198v1 · Andrea Alfarano, Alberto Alfarano, Linda Friso et al.2024 · 2 citationsarXiv
A Theoretical Analysis of Recommendation Loss Functions under Negative Sampling2411.07770v3 · Giulia Di Teodoro, Federico Siciliano, Nicola Tonellotto et al.2024 · 1 citationarXiv
ATM: Improving Model Merging by Alternating Tuning and Merging2411.03055v4 · Luca Zhou, Daniele Solombrino, Donato Crisostomi et al.2024 · 0 citationsarXiv
Beyond Position: the emergence of wavelet-like properties in Transformers2410.18067v4 · Valeria Ruscio, Umberto Nanni, Fabrizio Silvestri2024 · 0 citationsarXiv
Eco-Aware Graph Neural Networks for Sustainable Recommendations2410.09514v1 · Antonio Purificato, Fabrizio Silvestri2024 · 7 citationsarXiv
Natural Language Counterfactual Explanations for Graphs Using Large Language Models2410.09295v2 · Flavio Giorgi, Cesare Campagnano, Fabrizio Silvestri et al.2024 · 1 citationarXiv
Heterogeneous Sheaf Neural Networks2409.08036v4 · Luke Braithwaite, Alessio Borgi, Gabriele Onorato et al.2024 · 0 citationsarXiv
A Reproducible Analysis of Sequential Recommender Systems2408.03873v1 · Filippo Betello, Antonio Purificato, Federico Siciliano et al.2024 · 17 citationsarXiv
A Tale of Trust and Accuracy: Base vs. Instruct LLMs in RAG Systems2406.14972v1 · Florin Cuconasu, Giovanni Trappolini, Nicola Tonellotto et al.2024 · 0 citationsarXiv
Predicting Award Winning Research Papers at Publication Time2406.12535v1 · Riccardo Vella, Andrea Vitaletti, Fabrizio Silvestri2024 · 0 citationsarXiv
Cross-Document Neural Re-Ranking via Query-Induced Subgraphs2406.11720v2 · Andrea Giuseppe Di Francesco, Christian Giannetti, Nicola Tonellotto et al.2024 · 0 citationsarXiv
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