Published in University of Helsinki — Doctoral Thesis, 2025
Doctoral thesis on data mining methods for discovering structures in feature-rich graph networks.
Recommended citation: Chamalee Wickrama Arachchi. (2025). "Methods for Finding Structures in Feature-rich Graph Networks." University of Helsinki, Doctoral Dissertation. https://helda.helsinki.fi/handle/10138/601699
Published in ECML PKDD, 2024
A fairness-aware densest subgraph formulation across multiple graph instances.
Recommended citation: Chamalee Wickrama Arachchi and Nikolaj Tatti. (2024). "Fair Densest Subgraph Across Multiple Graphs." ECML PKDD. https://link.springer.com/chapter/10.1007/978-3-031-70362-1_1
Published in ACM KDD Conference, 2024
Dense subgraph discovery under strong triadic closure constraints.
Recommended citation: Chamalee Wickrama Arachchi, Iiro Kumpulainen, and Nikolaj Tatti. (2024). "Dense Subgraph Discovery Meets Strong Triadic Closure." ACM KDD Conference. https://dl.acm.org/doi/10.1145/3637528.3671697
Published in Machine Learning, 2024
Combining recurrent segmentation with block models for temporal networks.
Recommended citation: Chamalee Wickrama Arachchi and Nikolaj Tatti. (2024). "Recurrent segmentation meets block models in temporal networks." Machine Learning: 1–31. https://link.springer.com/content/pdf/10.1007/s10994-023-06507-6.pdf
Published in Machine Learning, 2024
Dense subgraph discovery with Jaccard constraints.
Recommended citation: Chamalee Wickrama Arachchi and Nikolaj Tatti. (2024). "Jaccard-constrained dense subgraph discovery." Machine Learning: 1–23. https://link.springer.com/article/10.1007/s10994-024-06595-y
Published in SIAM International Conference on Data Mining (SDM), 2023
A study on ranking nodes in labeled networks.
Recommended citation: Chamalee Wickrama Arachchi and Nikolaj Tatti. (2023). "Node ranking in labeled networks." SIAM International Conference on Data Mining. https://arxiv.org/abs/2502.01408
Published in University of Oulu — Master’s Thesis, 2019
Master’s thesis on power optimization for uplink in a cell-free massive MIMO system using L-MMSE detection.
Recommended citation: Chamalee Wickrama Arachchi. (2019). "Optimization Techniques for Cell-Free Massive MIMO System." University of Oulu, Master’s Thesis. https://oulurepo.oulu.fi/handle/10024/14156