27 citations · 27 across the 4 of their papers we have counts for
4 papers
Graph filtering for data reduction and reconstruction
Ioannis D. Schizas
A novel approach is put forth that utilizes data similarity, quantified on a graph, to improve upon the reconstruction performance of principal component analysis. The tasks of dat…
360-degree Video Stitching for Dual-fisheye Lens Cameras Based On Rigid Moving Least Squares
Tuan Ho, Ioannis Schizas, K. R. Rao +1
Dual-fisheye lens cameras are becoming popular for 360-degree video capture, especially for User-generated content (UGC), since they are affordable and portable. Images generated b…
Decentralized learning for wireless communications and networking
Georgios B. Giannakis, Qing Ling, Gonzalo Mateos +2
This chapter deals with decentralized learning algorithms for in-network processing of graph-valued data. A generic learning problem is formulated and recast into a separable form,…
Covariance Eigenvector Sparsity for Compression and Denoising
Ioannis D. Schizas, Georgios B. Giannakis
Sparsity in the eigenvectors of signal covariance matrices is exploited in this paper for compression and denoising. Dimensionality reduction (DR) and quantization modules present…