publications

2026

1. NeurIPS

   Comparing Explanations is Not Enough, Explain the Change: New Standards are Needed to Explain Behavioral Shifts in Large Language Models

   Martino Ciaperoni, Marzio Di Vece , Roberto Pellungrini , and 3 more authors

   In Advances in Neural Information Processing Systems (NeurIPS), Position Paper Track , 2026

   Accepted for publication

   arXiv Bib

   @inproceedings{ciaperoni2026comparing,
     title = {Comparing Explanations is Not Enough, Explain the Change: New Standards are Needed to Explain Behavioral Shifts in Large Language Models},
     author = {Ciaperoni, Martino and Di Vece, Marzio and Pellungrini, Roberto and Pappalardo, Luca and Giannotti, Fosca and Giannini, Francesco},
     booktitle = {Advances in Neural Information Processing Systems (NeurIPS), Position Paper Track},
     year = {2026},
     note = {Accepted for publication},
   }

2. ECML PKDD

   Virgil: Navigating Explainability for Transformer-based Language Models

   Martino Ciaperoni, S. Kutluk , Benedetta Muscato , and 2 more authors

   In European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD), Demo Track , 2026

   DOI Bib Code

   @inproceedings{ciaperoni2026virgil,
     title = {Virgil: Navigating Explainability for Transformer-based Language Models},
     author = {Ciaperoni, Martino and Kutluk, S. and Muscato, Benedetta and Marchiori Manerba, Marta and Giannotti, Fosca},
     booktitle = {European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD), Demo Track},
     pages = {382--386},
     year = {2026},
     doi = {10.1007/978-3-032-37685-5_39},
   }

3. IJCAI

   Efficient Optimization of Fixed-Length Paths

   Martino Ciaperoni, Nikolaos Tziavelis , and Panagiotis Karras

   In Proceedings of the 35th International Joint Conference on Artificial Intelligence (IJCAI) , 2026

   DOI Bib

   @inproceedings{ciaperoni2026efficient,
     title = {Efficient Optimization of Fixed-Length Paths},
     author = {Ciaperoni, Martino and Tziavelis, Nikolaos and Karras, Panagiotis},
     booktitle = {Proceedings of the 35th International Joint Conference on Artificial Intelligence (IJCAI)},
     pages = {2199--2207},
     year = {2026},
     doi = {10.24963/ijcai.2026/245},
   }

4. KDD

   Explainable AI for Cancer Drug Response Prediction: Beyond Univariate Feature Attributions

   Martino Ciaperoni, M. Lalli , Simone Piaggesi , and 6 more authors

   In Proceedings of the 32nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD) , 2026

   DOI Bib

   @inproceedings{ciaperoni2026explainable,
     title = {Explainable AI for Cancer Drug Response Prediction: Beyond Univariate Feature Attributions},
     author = {Ciaperoni, Martino and Lalli, M. and Piaggesi, Simone and Varisco, M. and Carli, F. and Guidotti, Riccardo and Pedreschi, Dino and Raimondi, Francesco and Giannotti, Fosca},
     booktitle = {Proceedings of the 32nd ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD)},
     pages = {10749--10760},
     year = {2026},
     doi = {10.1145/3770855.3819010},
   }

5. EDBT

   Khatri-Rao Clustering for Data Summarization

   Martino Ciaperoni, Collin Leiber , Aristides Gionis , and 1 more author

   In Proceedings of the 29th International Conference on Extending Database Technology (EDBT) , 2026

   DOI Bib Code

   @inproceedings{ciaperoni2026khatri,
     title = {Khatri-Rao Clustering for Data Summarization},
     author = {Ciaperoni, Martino and Leiber, Collin and Gionis, Aristides and Mannila, Heikki},
     booktitle = {Proceedings of the 29th International Conference on Extending Database Technology (EDBT)},
     pages = {399--412},
     year = {2026},
     doi = {10.48786/edbt.2026.32},
   }

2025

1. ECML PKDD

   Sample and Expand: Discovering Low-Rank Submatrices With Quality Guarantees

   Martino Ciaperoni, Aristides Gionis , and Heikki Mannila

   In European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD) , 2025

   DOI Bib Code

   @inproceedings{ciaperoni2025sample,
     title = {Sample and Expand: Discovering Low-Rank Submatrices With Quality Guarantees},
     author = {Ciaperoni, Martino and Gionis, Aristides and Mannila, Heikki},
     booktitle = {European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD)},
     pages = {78--95},
     year = {2025},
     doi = {10.1007/978-3-032-06096-9_5},
   }

2. Preprint

   Fair PCA, One Component at a Time

   Antonis Matakos , Martino Ciaperoni, and Heikki Mannila

   2025

   arXiv Bib Code

   @misc{matakos2025fair,
     title = {Fair PCA, One Component at a Time},
     author = {Matakos, Antonis and Ciaperoni, Martino and Mannila, Heikki},
     howpublished = {arXiv preprint arXiv:2503.21563},
     year = {2025},
   }

3. Preprint

   Consistent Multigroup Low-rank Approximation

   Antonis Matakos , Martino Ciaperoni, and Heikki Mannila

   2025

2024

1. KDD

   Efficient Exploration of the Rashomon Set of Rule-Set Models

   Martino Ciaperoni, Han Xiao , and Aristides Gionis

   In Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD) , 2024

   DOI Bib

   @inproceedings{ciaperoni2024efficient,
     title = {Efficient Exploration of the Rashomon Set of Rule-Set Models},
     author = {Ciaperoni, Martino and Xiao, Han and Gionis, Aristides},
     booktitle = {Proceedings of the 30th ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD)},
     pages = {478--489},
     year = {2024},
     doi = {10.1145/3637528.3671818},
   }

2. Interspeech

   Beam-search SIEVE for Low-Memory Speech Recognition

   Martino Ciaperoni, Athanasios Katsamanis , Aristides Gionis , and 1 more author

   In Proceedings of Interspeech , 2024

   DOI Bib

   @inproceedings{ciaperoni2024beam,
     title = {Beam-search SIEVE for Low-Memory Speech Recognition},
     author = {Ciaperoni, Martino and Katsamanis, Athanasios and Gionis, Aristides and Karras, Panagiotis},
     booktitle = {Proceedings of Interspeech},
     pages = {272--276},
     year = {2024},
     doi = {10.21437/Interspeech.2024-2457},
   }

3. DMKD

   The Hadamard Decomposition Problem

   Martino Ciaperoni, Aristides Gionis , and Heikki Mannila

   Data Mining and Knowledge Discovery, 2024

   DOI Bib Code

   @article{ciaperoni2024hadamard,
     title = {The Hadamard Decomposition Problem},
     author = {Ciaperoni, Martino and Gionis, Aristides and Mannila, Heikki},
     journal = {Data Mining and Knowledge Discovery},
     volume = {38},
     number = {4},
     pages = {2306--2347},
     year = {2024},
     publisher = {Springer},
     doi = {10.1007/s10618-024-01033-y},
   }

2023

1. Thesis

   Efficient and Trustworthy Methods for Knowledge Discovery

   Martino Ciaperoni

   2023

   Bib HTML

   @phdthesis{ciaperoni2023thesis,
     title = {Efficient and Trustworthy Methods for Knowledge Discovery},
     author = {Ciaperoni, Martino},
     school = {Aalto University},
     type = {Doctoral thesis},
     year = {2023},
   }

2. KAIS

   Concise and Interpretable Multi-Label Rule Sets

   Martino Ciaperoni, Han Xiao , and Aristides Gionis

   Knowledge and Information Systems, 2023

   DOI Bib

   @article{ciaperoni2023concise,
     title = {Concise and Interpretable Multi-Label Rule Sets},
     author = {Ciaperoni, Martino and Xiao, Han and Gionis, Aristides},
     journal = {Knowledge and Information Systems},
     volume = {65},
     number = {12},
     pages = {5657--5694},
     year = {2023},
     publisher = {Springer},
     doi = {10.1007/s10115-023-01930-6},
   }

2022

1. ICDM

   Concise and Interpretable Multi-Label Rule Sets

   Martino Ciaperoni, Han Xiao , and Aristides Gionis

   In Proceedings of the 22nd IEEE International Conference on Data Mining (ICDM) , 2022

   DOI Bib

   @inproceedings{ciaperoni2022concise,
     title = {Concise and Interpretable Multi-Label Rule Sets},
     author = {Ciaperoni, Martino and Xiao, Han and Gionis, Aristides},
     booktitle = {Proceedings of the 22nd IEEE International Conference on Data Mining (ICDM)},
     pages = {71--80},
     year = {2022},
     doi = {10.1109/ICDM54844.2022.00017},
   }

2. SIGMOD

   SIEVE: A Space-Efficient Algorithm for Viterbi Decoding

   Martino Ciaperoni, Aristides Gionis , Athanasios Katsamanis , and 1 more author

   In Proceedings of the 2022 International Conference on Management of Data (SIGMOD) , 2022

   Related patent application filed

   DOI Bib

   @inproceedings{ciaperoni2022sieve,
     title = {SIEVE: A Space-Efficient Algorithm for Viterbi Decoding},
     author = {Ciaperoni, Martino and Gionis, Aristides and Katsamanis, Athanasios and Karras, Panagiotis},
     booktitle = {Proceedings of the 2022 International Conference on Management of Data (SIGMOD)},
     pages = {1136--1145},
     year = {2022},
     doi = {10.1145/3514221.3526170},
     note = {Related patent application filed},
   }

3. EDBT

   Workload-Aware Materialization of Junction Trees

   Martino Ciaperoni, Cigdem Aslay , Aristides Gionis , and 1 more author

   In Proceedings of the 25th International Conference on Extending Database Technology (EDBT) , 2022

   DOI Bib Code

   @inproceedings{ciaperoni2022workload,
     title = {Workload-Aware Materialization of Junction Trees},
     author = {Ciaperoni, Martino and Aslay, Cigdem and Gionis, Aristides and Mathioudakis, Michael},
     booktitle = {Proceedings of the 25th International Conference on Extending Database Technology (EDBT)},
     pages = {65--77},
     year = {2022},
     doi = {10.5441/002/edbt.2022.06},
   }

2021

1. ICDE

   Workload-Aware Materialization for Efficient Variable Elimination on Bayesian Networks

   Cigdem Aslay , Martino Ciaperoni, Aristides Gionis , and 1 more author

   In Proceedings of the IEEE 37th International Conference on Data Engineering (ICDE) , 2021

   DOI Bib

   @inproceedings{aslay2021workload,
     title = {Workload-Aware Materialization for Efficient Variable Elimination on Bayesian Networks},
     author = {Aslay, Cigdem and Ciaperoni, Martino and Gionis, Aristides and Mathioudakis, Michael},
     booktitle = {Proceedings of the IEEE 37th International Conference on Data Engineering (ICDE)},
     pages = {1152--1163},
     year = {2021},
     doi = {10.1109/ICDE51399.2021.00104},
   }

2020

1. TKDD

   Span-Core Decomposition for Temporal Networks: Algorithms and Applications

   Edoardo Galimberti , Martino Ciaperoni, Alain Barrat , and 3 more authors

   ACM Transactions on Knowledge Discovery from Data, 2020

   DOI Bib

   @article{galimberti2020span,
     title = {Span-Core Decomposition for Temporal Networks: Algorithms and Applications},
     author = {Galimberti, Edoardo and Ciaperoni, Martino and Barrat, Alain and Bonchi, Francesco and Cattuto, Ciro and Gullo, Francesco},
     journal = {ACM Transactions on Knowledge Discovery from Data},
     volume = {15},
     number = {1},
     pages = {2:1--2:44},
     year = {2020},
     publisher = {ACM},
     doi = {10.1145/3418226},
   }

2. Sci. Rep.

   Relevance of Temporal Cores for Epidemic Spread in Temporal Networks

   Martino Ciaperoni, Edoardo Galimberti , Francesco Bonchi , and 3 more authors

   Scientific Reports, 2020

   DOI Bib

   @article{ciaperoni2020relevance,
     title = {Relevance of Temporal Cores for Epidemic Spread in Temporal Networks},
     author = {Ciaperoni, Martino and Galimberti, Edoardo and Bonchi, Francesco and Cattuto, Ciro and Gullo, Francesco and Barrat, Alain},
     journal = {Scientific Reports},
     volume = {10},
     pages = {12529},
     year = {2020},
     publisher = {Nature Publishing Group},
     doi = {10.1038/s41598-020-69464-3},
   }

2019

1. Preprint

   Query the Model: Precomputations for Efficient Inference with Bayesian Networks

   Cigdem Aslay , Martino Ciaperoni, Aristides Gionis , and 1 more author

   2019

   arXiv Bib

   @misc{aslay2019query,
     title = {Query the Model: Precomputations for Efficient Inference with Bayesian Networks},
     author = {Aslay, Cigdem and Ciaperoni, Martino and Gionis, Aristides and Mathioudakis, Michael},
     howpublished = {arXiv preprint arXiv:1904.00079},
     year = {2019},
   }