Nikolaos Nakis

§ 02 · Index of work

Publications & Preprints

A complete record of peer-reviewed work and preprints, ordered from most recent. Where available, links lead to the published version or the authors' preprint.

2026
  • [01]

    Modeling roles and trade-offs in multiplex networks

    Nikolaos Nakis, Sune Lehmann, Nicholas A. Christakis, Morten Mørup

    Nature Communications, 2026

  • [02]

    Archetypal Graph Generative Models: Explainable and Identifiable Communities via Anchor-Dominant Convex Hulls

    Nikolaos Nakis, Chrysoula Kosma, Panagiotis Promponas, Michail Chatzianastasis, Giannis Nikolentzos

    Proceedings of the 29th International Conference on Artificial Intelligence and Statistics (AISTATS), PMLR — Spotlight Paper

2025
  • [03]

    Signed Graph Autoencoder for Explainable and Polarization-Aware Network Embeddings

    Nikolaos Nakis, Chrysoula Kosma, Giannis Nikolentzos, Iakovos Evdaimon, Michail Chatzianastasis, Michalis Vazirgiannis

    Proceedings of the 28th International Conference on Artificial Intelligence and Statistics (AISTATS), PMLR

  • [04]

    How Low Can You Go? Searching for the Intrinsic Dimensionality of Complex Networks using Metric Node Embeddings

    Nikolaos Nakis, Niels Raunkjær Holm, Andreas Lyhne Fiehn, Morten Mørup

    International Conference on Learning Representations (ICLR), 2025

  • [05]

    The signed two-space proximity model for learning representations in protein–protein interaction networks

    Nikolaos Nakis, Chrysoula Kosma, Anastasia Brativnyk, Iakovos Evdaimon, Michail Chatzianastasis, Michalis Vazirgiannis

    OUP Bioinformatics, 2025

2024
  • [06]

    Continuous-time Graph Representation with Sequential Survival Process

    Abdulkadir Çelikkanat, Nikolaos Nakis, Morten Mørup

    Proceedings of the AAAI Conference on Artificial Intelligence, 2024

  • [07]

    Time to Cite: Modeling Citation Networks using the Dynamic Impact Single-Event Embedding Model

    Nikolaos Nakis, Abdulkadir Çelikkanat, Louis Boucherie, Sune Lehmann, Morten Mørup

    Proceedings of the 27th International Conference on Artificial Intelligence and Statistics (AISTATS), PMLR

2023
  • [08]

    A Hierarchical Block Distance Model for Ultra Low-Dimensional Graph Representations

    Nikolaos Nakis, Abdulkadir Çelikkanat, Sune Lehmann, Morten Mørup

    IEEE Transactions on Knowledge and Data Engineering (TKDE)

  • [09]

    Characterizing Polarization in Social Networks using the Signed Relational Latent Distance Model

    Nikolaos Nakis, Abdulkadir Çelikkanat, Louis Boucherie, Morten Mørup

    Proceedings of the 26th International Conference on Artificial Intelligence and Statistics (AISTATS), PMLR

  • [10]

    A Hybrid Membership Latent Distance Model for Unsigned and Signed Integer Weighted Networks

    Nikolaos Nakis, Abdulkadir Çelikkanat, Morten Mørup

    Advances in Complex Systems (ACS)

2022
  • [11]

    HM-LDM: A Hybrid-Membership Latent Distance Model

    Nikolaos Nakis, Abdulkadir Çelikkanat, Morten Mørup

    Complex Networks and Their Applications XI

  • [12]

    Piecewise-Velocity Model for Learning Continuous-time Dynamic Node Representations

    Abdulkadir Çelikkanat, Nikolaos Nakis, Morten Mørup

    Proceedings of the First Learning on Graphs Conference, PMLR

Preprints & In Press

§ 02 · ii

Thesis

§ 02 · iii