Georgios B. Giannakis
5 papers in the PaperMetrix corpus
Papers by this author
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Space-time scheduling for green data center networks
2016
This paper puts forward a systematic approach to designing energy-aware traffic-efficient geographical load balancing schemes for data-center networks that are not only optimal, but also computationally efficient and amenable to distributed implementation. Under a stochastic …
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Random Feature-based Online Multi-kernel Learning in Environments with Unknown Dynamics
2017 · arXiv (Cornell University)
Kernel-based methods exhibit well-documented performance in various nonlinear learning tasks. Most of them rely on a preselected kernel, whose prudent choice presumes task-specific prior information. Especially when the latter is not available, multi-kernel learning has …
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Unsupervised Ensemble Classification With Sequential and Networked Data
2020 · IEEE Transactions on Knowledge and Data Engineering
Ensemble learning, the machine learning paradigm where multiple models are combined, has exhibited promising perfomance in a variety of tasks. The present work focuses on unsupervised ensemble classification. The term unsupervised refers to the ensemble …
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VASSO: Variance Suppression for Sharpness-Aware Minimization
2025 · arXiv (Cornell University)
Sharpness-aware minimization (SAM) has well-documented merits in enhancing generalization of deep neural network models. Accounting for sharpness in the loss function geometry, where neighborhoods of `flat minima' heighten generalization ability, SAM seeks `flat valleys' by …
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Online Graph-Adaptive Learning With Scalability and Privacy
2019 · IEEE Transactions on Signal Processing
Graphs are widely adopted for modeling complex systems, including financial, biological, and social networks. Nodes in networks usually entail attributes, such as the age or gender of users in a social network. However, real-world networks …