Publications and Preprints

(Author orders for most papers are alphabetical)

  1. The Effect of Layer Ordering in Hybrid Architectures [arxiv]
    with J. Cooper, J. Mo, S. Qiu, N. Bastian, I. Diakonikolas, F. Sala
    Under Review

  2. Robust Learning of Multi-Index Models under Logconcave Distributions via Weak Partial Learners [full version]
    with I. Diakonikolas, D. Kane
    Proceedings of the 67th Annual Symposium on Foundations of Computer Science (FOCS 2026)

  3. Polynomial-Time Robust Multiclass Linear Classification under Gaussian Marginals [arxiv]
    with I. Diakonikolas, G. Iakovidis
    Advances in Neural Information Processing Systems (NeurIPS 2026)
    (Selected as a Spotlight Paper)

  4. Expressivity-Efficiency Tradeoffs for Hybrid Sequence Models [arxiv]
    with J.Cooper, I. Diakonikolas, F.Sala
    Proceedings of the 43th International Conference on Machine Learning (ICML 2026)
    (Selected for Oral Presentation)

  5. Efficiently Learning Drifting Halfspaces with Massart Noise [arxiv]
    with G.Cao, I. Diakonikolas, J. Diakonikolas
    Proceedings of the 43th International Conference on Machine Learning (ICML 2026)

  6. Robust Regression of General ReLUs with Queries [conference version]
    with I. Diakonikolas, D. Kane
    Advances in Neural Information Processing Systems (NeurIPS 2025)

  7. Learning Intersections of Two Margin Halfspaces under Factorizable Distributions [conference version]
    with I. Diakonikolas, L. Ren, C. Tzamos
    Proceedings of the 38th Annual Conference on Learning Theory (COLT 2025)

  8. Statistical Query Hardness of Multiclass Linear Classification with Random Classification Noise [arxiv]
    with I. Diakonikolas, L. Ren, C. Tzamos
    Proceedings of the 42th International Conference on Machine Learning (ICML 2025)
    (Selected for Oral Presentation)

  9. Active Classification with Few Queries under Misspecification [conference version]
    with V. Kontonis, C. Tzamos
    Advances in Neural Information Processing Systems (NeurIPS 2024)
    (Selected as a Spotlight Paper)

  10. Active Learning of General Halfspaces: Label Queries vs Membership Queries [conference version]
    with I. Diakonikolas, D. Kane
    Advances in Neural Information Processing Systems (NeurIPS 2024)

  11. Active Learning with Simple Questions [arxiv]
    with V. Kontonis, C. Tzamos
    Proceedings of the 37th Annual Conference on Learning Theory (COLT 2024)

  12. Fast Co-Training under Weak Dependence via Stream-Based Active Learning [conference version]
    with I. Diakonikolas, L. Ren, C. Tzamos
    Proceedings of the 41th International Conference on Machine Learning (ICML 2024)
    (Selected for Oral Presentation)

  13. The Gain from Ordering in Online Learning [conference version]
    with V. Kontonis, C. Tzamos
    Advances in Neural Information Processing Systems (NeurIPS 2023)

  14. Buying Information for Stochastic Optimization [conference version]
    with C. Tzamos
    Proceedings of the 40th International Conference on Machine Learning (ICML 2023)
    (Selected for Oral Presentation)

  15. Clustering with Queries under Semi-Random Noise [conference version]
    with A. Del Pia, C. Tzamos
    Proceedings of the 35th Annual Conference on Learning Theory (COLT 2022)

  16. k-median: exact recovery in the extended stochastic ball model [journal version]
    with A. Del Pia
    Mathematical Programming, Series A, 2022

  17. Proximity in concave integer quadratic programming [journal version]
    with A. Del Pia
    Mathematical Programming, Series A, 2021