publications | Fabio Arnez

2026

Disentangling the Good From the Bad: Quantization-Induced Flips Are Not Random

Aymen Bouguerra, Alexandra Gomez-Villa, Chokri Mraidha, and Fabio Arnez

In Advances in Neural Information Processing Systems (NeurIPS), Dec 2026

To appear

@inproceedings{bouguerra2026disentangling,
  title = {Disentangling the Good From the Bad: Quantization-Induced Flips Are Not Random},
  author = {Bouguerra, Aymen and Gomez-Villa, Alexandra and Mraidha, Chokri and Arnez, Fabio},
  booktitle = {Advances in Neural Information Processing Systems (NeurIPS)},
  year = {2026},
  month = dec,
  note = {To appear}
}

Quantization and Corruption Robustness in Deployed Road-Scene Perception

Aymen Bouguerra, Ansgar Radermacher, Chokri Mraidha, and Fabio Arnez

In IEEE International Conference on Vehicular Electronics and Safety (ICVES), Nov 2026

To appear

Bib

@inproceedings{bouguerra2026quantization,
  title = {Quantization and Corruption Robustness in Deployed Road-Scene Perception},
  author = {Bouguerra, Aymen and Radermacher, Ansgar and Mraidha, Chokri and Arnez, Fabio},
  booktitle = {IEEE International Conference on Vehicular Electronics and Safety (ICVES)},
  year = {2026},
  month = nov,
  note = {To appear}
}

Drive-SynOOD-OD: A Diffusion-Inpainted Synthetic Out-of-Distribution Object Detection Benchmark for Autonomous Driving

Daniel Montoya, Mauricio Sayri Espinoza Mayzer, and Fabio Arnez

In IEEE International Conference on Vehicular Electronics and Safety (ICVES), Nov 2026

To appear

Bib

@inproceedings{montoya2026drivesynoodod,
  title = {Drive-SynOOD-OD: A Diffusion-Inpainted Synthetic Out-of-Distribution Object Detection Benchmark for Autonomous Driving},
  author = {Montoya, Daniel and Espinoza Mayzer, Mauricio Sayri and Arnez, Fabio},
  booktitle = {IEEE International Conference on Vehicular Electronics and Safety (ICVES)},
  year = {2026},
  month = nov,
  note = {To appear}
}

The SIGReg Objective as Variational Free Energy: A Theoretical Active-Inference Account of JEPA World Models

Fabio Arnez and Alexandra Gomez-Villa

Jul 2026

Bib PDF

@misc{arnez2026sigreg,
  title = {The SIGReg Objective as Variational Free Energy: A Theoretical Active-Inference Account of JEPA World Models},
  author = {Arnez, Fabio and Gomez-Villa, Alexandra},
  year = {2026},
  month = jul,
  archiveprefix = {arXiv},
  primaryclass = {cs.LG},
  url = {https://arxiv.org/abs/2607.13612},
  pdf = {https://arxiv.org/pdf/2607.13612}
}

Less Precise Can Be More Reliable: A Systematic Evaluation of Quantization’s Impact on VLMs Beyond Accuracy

Aymen Bouguerra, Daniel Montoya, Alexandra Gomez-Villa, Chokri Mraidha, and Fabio Arnez

In International Conference on Machine Learning (ICML), Jul 2026

Bib HTML PDF Code Poster Slides

@inproceedings{bouguerra2025precisereliablesystematicevaluation,
  title = {Less Precise Can Be More Reliable: A Systematic Evaluation of Quantization's Impact on VLMs Beyond Accuracy},
  author = {Bouguerra, Aymen and Montoya, Daniel and Gomez-Villa, Alexandra and Mraidha, Chokri and Arnez, Fabio},
  booktitle = {International Conference on Machine Learning (ICML)},
  year = {2026},
  month = jul,
  archiveprefix = {arXiv},
  primaryclass = {cs.CV},
  url = {https://icml.cc/virtual/2026/poster/63466},
  pdf = {https://arxiv.org/pdf/2509.21173},
}

FedSALAT: Adaptive Buffer-Based Active Learning for Federated Data Streams

Prajit T Rajendran, Fabio Arnez, Huascar Espinoza, Agnes Delaborde, and Chokri Mraidha

In 2026 2nd International Conference on Federated Learning and Intelligent Computing Systems (FLICS), Jun 2026

DOI Bib

@inproceedings{rajendran2026fedsalat,
  title = {FedSALAT: Adaptive Buffer-Based Active Learning for Federated Data Streams},
  author = {Rajendran, Prajit T and Arnez, Fabio and Espinoza, Huascar and Delaborde, Agnes and Mraidha, Chokri},
  booktitle = {2026 2nd International Conference on Federated Learning and Intelligent Computing Systems (FLICS)},
  pages = {248--256},
  year = {2026},
  month = jun,
  organization = {IEEE},
  doi = {10.1109/FLICS70075.2026.11621909},
  url = {https://ieeexplore.ieee.org/document/11621909}
}

Digital Twins and World Models: A Systematic Taxonomic Disambiguation

Kunal Suri and Fabio Arnez

In Advanced Information Systems Engineering Workshops (CAiSE 2026 Workshops, MIDas4CS), Jun 2026

DOI Bib PDF

@inproceedings{suri2026digitaltwins,
  title = {Digital Twins and World Models: A Systematic Taxonomic Disambiguation},
  author = {Suri, Kunal and Arnez, Fabio},
  booktitle = {Advanced Information Systems Engineering Workshops (CAiSE 2026 Workshops, MIDas4CS)},
  series = {Lecture Notes in Business Information Processing},
  volume = {586},
  pages = {61--66},
  year = {2026},
  month = jun,
  publisher = {Springer},
  doi = {10.1007/978-3-032-28160-9_6},
  url = {https://link.springer.com/chapter/10.1007/978-3-032-28160-9_6},
  pdf = {https://cea.hal.science/cea-05547494/document}
}

2025

Oracle-Guided Soft Shielding for Safe Move Prediction in Chess

Prajit T Rajendran, Fabio Arnez, Huascar Espinoza, Agnes Delaborde, and Chokri Mraidha

In 2025 International Conference on Machine Learning and Applications (ICMLA), Dec 2025

DOI Bib PDF

@inproceedings{rajendran2025oracle,
  title = {Oracle-Guided Soft Shielding for Safe Move Prediction in Chess},
  author = {Rajendran, Prajit T and Arnez, Fabio and Espinoza, Huascar and Delaborde, Agnes and Mraidha, Chokri},
  booktitle = {2025 International Conference on Machine Learning and Applications (ICMLA)},
  pages = {875--880},
  year = {2025},
  month = dec,
  organization = {IEEE},
  doi = {10.1109/ICMLA66185.2025.00130},
  archiveprefix = {arXiv},
  primaryclass = {cs.LG},
  url = {https://ieeexplore.ieee.org/document/11471442},
  pdf = {https://arxiv.org/pdf/2603.08506}
}

The Map of Misbelief: Tracing Intrinsic and Extrinsic Hallucinations Through Attention Patterns

Elyes Hajji, Aymen Bouguerra, and Fabio Arnez

Proceedings of the AAAI Symposium Series, Nov 2025

DOI Bib PDF

@article{hajji2025mapofmisbelief,
  title = {The Map of Misbelief: Tracing Intrinsic and Extrinsic Hallucinations Through Attention Patterns},
  author = {Hajji, Elyes and Bouguerra, Aymen and Arnez, Fabio},
  journal = {Proceedings of the AAAI Symposium Series},
  volume = {7},
  number = {1},
  pages = {177--184},
  year = {2025},
  month = nov,
  doi = {10.1609/aaaiss.v7i1.36884},
  archiveprefix = {arXiv},
  primaryclass = {cs.LG},
  url = {https://ojs.aaai.org/index.php/AAAI-SS/article/view/36884},
  pdf = {https://ojs.aaai.org/index.php/AAAI-SS/article/download/36884/39022}
}

FindMeIfYouCan: Bringing Open Set metrics to near, far and farther Out-of-Distribution Object Detection

Daniel Montoya, Aymen Bouguerra, Alexandra Gomez-Villa, and Fabio Arnez

2025

Bib PDF

@misc{montoya2025findmeifyoucanbringingopenset,
  title = {FindMeIfYouCan: Bringing Open Set metrics to near, far and farther Out-of-Distribution Object Detection},
  author = {Montoya, Daniel and Bouguerra, Aymen and Gomez-Villa, Alexandra and Arnez, Fabio},
  year = {2025},
  archiveprefix = {arXiv},
  primaryclass = {cs.CV},
  url = {https://arxiv.org/abs/2506.14008},
  pdf = {https://arxiv.org/pdf/2506.14008}
}

2024

Latent representation entropy density for distribution shift detection

Fabio Arnez, Daniel Alfonso Montoya Vasquez, Ansgar Radermacher, and François Terrier

In Conference on Uncertainty in Artificial Intelligence (UAI), 2024

Bib PDF

@inproceedings{arnez2024latent,
  title = {Latent representation entropy density for distribution shift detection},
  author = {Arnez, Fabio and Vasquez, Daniel Alfonso Montoya and Radermacher, Ansgar and Terrier, Fran{\c{c}}ois},
  booktitle = {Conference on Uncertainty in Artificial Intelligence (UAI)},
  year = {2024},
  url = {https://proceedings.mlr.press/v244/arnez24a.html},
  pdf = {https://raw.githubusercontent.com/mlresearch/v244/main/assets/arnez24a/arnez24a.pdf}
}

2023

Deep neural network uncertainty runtime monitoring for robust and safe AI-based automated navigation

Fabio Alejandro Arnez Yagualca

Dec 2023

Bib PDF

@phdthesis{arnezyagualca:tel-04672736,
  title = {{Deep neural network uncertainty runtime monitoring for robust and safe AI-based automated navigation}},
  author = {Arnez Yagualca, Fabio Alejandro},
  url = {https://theses.hal.science/tel-04672736},
  number = {2023UPASG100},
  school = {{Universit{\'e} Paris-Saclay}},
  year = {2023},
  month = dec,
  keywords = {Deep neural network ; Uncertainty ; Monitoring ; Propagation ; Automated system ; R{\'e}seaux neuronaux profonds ; Incertitude ; Surveillance du temps d'ex{\'e}cution ; Propagation ; Syst{\`e}me automatis{\'e}},
  type = {Theses},
  pdf = {https://theses.hal.science/tel-04672736v1/file/122361_ARNEZ_YAGUALCA_2023_archivage.pdf},
  hal_id = {tel-04672736},
  hal_version = {v1}
}

Out-of-Distribution Detection Using Deep Neural Network Latent Space Uncertainty.

Fabio Arnez, Ansgar Radermacher, and François Terrier

In SafeAI@ AAAI, 2023

Bib

@inproceedings{arnez2023out,
  title = {Out-of-Distribution Detection Using Deep Neural Network Latent Space Uncertainty.},
  author = {Arnez, Fabio and Radermacher, Ansgar and Terrier, Fran{\c{c}}ois},
  booktitle = {SafeAI@ AAAI},
  year = {2023}
}

Towards an ontological methodology for dynamic dependability management of unmanned aerial vehicles

Guillaume Ollier, Fabio Arnez, Morayo Adedjouma, Raphaël Lallement, Simos Gerasimou, and 1 more author

In Proceedings of the DroneSE and RAPIDO: System Engineering for constrained embedded systems, 2023

Bib

@incollection{ollier2023towards,
  title = {Towards an ontological methodology for dynamic dependability management of unmanned aerial vehicles},
  author = {Ollier, Guillaume and Arnez, Fabio and Adedjouma, Morayo and Lallement, Rapha{\"e}l and Gerasimou, Simos and Mraidha, Chokri},
  booktitle = {Proceedings of the DroneSE and RAPIDO: System Engineering for constrained embedded systems},
  pages = {12--19},
  year = {2023}
}

2022

Skeptical dynamic dependability management for automated systems

Fabio Arnez, Guillaume Ollier, Ansgar Radermacher, Morayo Adedjouma, Simos Gerasimou, and 2 more authors

In 2022 25th Euromicro Conference on Digital System Design (DSD), 2022

Bib

@inproceedings{arnez2022skeptical,
  title = {Skeptical dynamic dependability management for automated systems},
  author = {Arnez, Fabio and Ollier, Guillaume and Radermacher, Ansgar and Adedjouma, Morayo and Gerasimou, Simos and Mraidha, Chokri and Terrier, Fran{\c{c}}ois},
  booktitle = {2022 25th Euromicro Conference on Digital System Design (DSD)},
  pages = {118--125},
  year = {2022},
  organization = {IEEE Computer Society}
}

Quantifying and using system uncertainty in uav navigation

Fabio Arnez, Ansgar Radermacher, and Huascar Espinoza

arXiv preprint arXiv:2206.01953, 2022

Bib

@article{arnez2022quantifying,
  title = {Quantifying and using system uncertainty in uav navigation},
  author = {Arnez, Fabio and Radermacher, Ansgar and Espinoza, Huascar},
  journal = {arXiv preprint arXiv:2206.01953},
  year = {2022}
}

Towards dependable autonomous systems based on bayesian deep learning components

Fabio Arnez, Huascar Espinoza, Ansgar Radermacher, and François Terrier

In 2022 18th European Dependable Computing Conference (EDCC), 2022

Bib

@inproceedings{arnez2022towards,
  title = {Towards dependable autonomous systems based on bayesian deep learning components},
  author = {Arnez, Fabio and Espinoza, Huascar and Radermacher, Ansgar and Terrier, Fran{\c{c}}ois},
  booktitle = {2022 18th European Dependable Computing Conference (EDCC)},
  pages = {65--72},
  year = {2022},
  organization = {IEEE}
}

2021

Improving robustness of deep neural networks for aerial navigation by incorporating input uncertainty

Fabio Arnez, Huascar Espinoza, Ansgar Radermacher, and François Terrier

In Computer Safety, Reliability, and Security. SAFECOMP 2021 Workshops, 2021

Bib

@inproceedings{arnez2021improving,
  title = {Improving robustness of deep neural networks for aerial navigation by incorporating input uncertainty},
  author = {Arnez, Fabio and Espinoza, Huascar and Radermacher, Ansgar and Terrier, Fran{\c{c}}ois},
  booktitle = {Computer Safety, Reliability, and Security. SAFECOMP 2021 Workshops},
  pages = {219--225},
  year = {2021},
  organization = {Springer}
}

A Comparison of Uncertainty Estimation Approaches in Deep Learning Components for Autonomous Vehicle Applications

Fabio Arnez, Huascar Espinoza, Ansgar Radermacher, and François Terrier

In IJCAI-PRICAI 2020, Workshop on Artificial Intelligence Safety - AISafety 2020, Jan 2021

Accepted Workshop AISafety 2020 - Workshop in Artificial Intelligence Safety

Bib

@inproceedings{arnez:hal-04486343,
  title = {{A Comparison of Uncertainty Estimation Approaches in Deep Learning Components for Autonomous Vehicle Applications}},
  author = {Arnez, Fabio and Espinoza, Huascar and Radermacher, Ansgar and Terrier, Fran{\c c}ois},
  url = {https://hal.science/hal-04486343},
  note = {Accepted Workshop AISafety 2020 - Workshop in Artificial Intelligence Safety},
  booktitle = {{IJCAI-PRICAI 2020, Workshop on Artificial Intelligence Safety - AISafety 2020}},
  address = {Yokohama ( virtual ), Japan},
  year = {2021},
  month = jan,
  keywords = {autonomous vehicle ; Uncertainty ; Deep Learning ; Bayesian deep learning},
  hal_id = {hal-04486343},
  hal_version = {v1}
}

2019

SRESLi: Smart renewable energy street lighting system

Fabiana Cañipa, Fabio Arnez, Omar Ormachea, Armando Rivero, Gian Carlo Dozio, and 1 more author

Investigación & Desarrollo, 2019

Bib

@article{canipa2019sresli,
  title = {SRESLi: Smart renewable energy street lighting system},
  author = {Ca{\~n}ipa, Fabiana and Arnez, Fabio and Ormachea, Omar and Rivero, Armando and Dozio, Gian Carlo and Escobar, Erick},
  journal = {Investigaci{\'o}n \& Desarrollo},
  volume = {19},
  number = {1},
  pages = {5--23},
  year = {2019},
  publisher = {Universidad Privada Boliviana}
}

2015

Design Considerations of an Unmanned Aerial Vehicle for Aerial Filming

Dennis Casazola, Fabio Arnez, and Huascar Espinoza

2015

Bib PDF

@misc{casazola2022designconsiderationsunmannedaerial,
  title = {Design Considerations of an Unmanned Aerial Vehicle for Aerial Filming},
  author = {Casazola, Dennis and Arnez, Fabio and Espinoza, Huascar},
  year = {2015},
  archiveprefix = {arXiv},
  primaryclass = {cs.RO},
  url = {https://arxiv.org/abs/2212.11402},
  pdf = {https://arxiv.org/pdf/2212.11402}
}

2014

VIRMS A VEHICLE INFORMATION AND ROAD MONITORING SYSTEM

Fabio Arnez and Alex Villazón

Revista Investigación & Desarrollo, Jan 2014

Bib PDF

@article{Arnez2014,
  title = {VIRMS A VEHICLE INFORMATION AND ROAD MONITORING SYSTEM},
  journal = {Revista Investigación & Desarrollo},
  author = {Arnez, Fabio and Villazón, Alex},
  issn = {2518-4431},
  language = {en},
  url = {https://www1.upb.edu/revista-investigacion-desarrollo/index.php/id/article/view/29},
  volume = {2},
  number = {14},
  year = {2014},
  month = jan,
  pages = {92 - 105},
  pdf = {https://www1.upb.edu/revista-investigacion-desarrollo/index.php/id/article/view/29/84}
}