Search Results for author: Seung-Jun Kim

Found 5 papers, 0 papers with code

New Interpretable Patterns and Discriminative Features from Brain Functional Network Connectivity Using Dictionary Learning

no code implementations10 Nov 2022 Fateme Ghayem, Hanlu Yang, Furkan Kantar, Seung-Jun Kim, Vince D. Calhoun, Tulay Adali

In this paper, we present a new method that leverages ICA and DL for the identification of directly interpretable patterns to discriminate between the HC and Sz groups.

Dictionary Learning

Radio Map Estimation: A Data-Driven Approach to Spectrum Cartography

no code implementations1 Feb 2022 Daniel Romero, Seung-Jun Kim

Radio maps characterize quantities of interest in radio communication environments, such as the received signal strength and channel attenuation, at every point of a geographical region.

regression Spectrum Cartography

Channel Gain Cartography via Mixture of Experts

no code implementations8 Dec 2020 Luis M. Lopez-Ramos, Yves Teganya, Baltasar Beferull-Lozano, Seung-Jun Kim

In this work, apart from adapting the location-free features for the CG maps, a method that can combine both approaches is proposed in a mixture-of-experts framework.

Learning Power Spectrum Maps from Quantized Power Measurements

no code implementations7 Jun 2016 Daniel Romero, Seung-Jun Kim, Georgios B. Giannakis, Roberto Lopez-Valcarce

Power spectral density (PSD) maps providing the distribution of RF power across space and frequency are constructed using power measurements collected by a network of low-cost sensors.

Quantization

Backhaul-Constrained Multi-Cell Cooperation Leveraging Sparsity and Spectral Clustering

no code implementations30 Sep 2014 Swayambhoo Jain, Seung-Jun Kim, Georgios B. Giannakis

Dynamic clustered cooperation, where the sparse equalizer and the cooperation clusters are jointly determined, is solved via alternating minimization based on spectral clustering and group-sparse regression.

Clustering Computational Efficiency +1

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