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Publications

Journal

E. Raninen, D. E. Tyler, and E. Ollila, “Linear pooling of sample covariance matrices,” IEEE Transactions on Signal Processing, vol. 70, pp. 659-672, 2022. [doi] [errata] [pdf] [code] [video]

E. Raninen and E. Ollila, “Bias adjusted sign covariance matrix,” IEEE Signal Processing Letters, vol. 29, pp. 339–343, 2022. [doi] [pdf] [code]

E. Raninen, E. Ollila, and D. E. Tyler, “On the variability of the sample covariance matrix under complex elliptical distributions,” IEEE Signal Processing Letters, vol. 28, pp. 2092–2096, 2021. [doi] [errata] [pdf]

E. Raninen and E. Ollila, “Coupled regularized sample covariance matrix estimator for multiple classes,” IEEE Transactions on Signal Processing, vol. 69, pp. 5681–5692, 2021. [doi] [pdf] [code]

E. Ollila and E. Raninen, “Optimal shrinkage covariance matrix estimation under random sampling from elliptical distributions,” IEEE Transactions on Signal Processing, vol. 67, no. 10, pp. 2707–2719, May 2019. [doi] [errata] [arXiv] [code] [video]

P. Ylä-Oijala, D. C. Tzarouchis, E. Raninen, and A. Sihvola, “Characteristic mode analysis of plasmonic nanoantennas,” IEEE Transactions on Antennas and Propagation, vol. 65, no. 5, pp. 2165–2172, May 2017. [doi]

Conference

A. Mian, E. Raninen, and E. Ollila, “A comparative study of supervised learning algorithms for symmetric positive definite features,” in 2020 28th European Signal Processing Conference (EUSIPCO), Jan. 2021, pp. 950–954. [doi] [pdf] [code]

E. Raninen and E. Ollila, “Optimal pooling of covariance matrix estimates across multiple classes,” in 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Apr. 2018, pp. 4224–4228. [doi] [poster]

E. Raninen and E. Ollila, “Scaled and square-root elastic net,” in 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Mar. 2017, pp. 4336–4340. [doi] [poster]

P. Ylä-Oijala, E. Raninen, D. Ch. Tzarouchis, and A. Sihvola, “Characteristic mode-surface integral equation analysis of plasmonic nanoparticles,” in 2016 URSI International Symposium on Electromagnetic Theory (EMTS), Aug. 2016, pp. 632–635. [doi]

M. Honkala, A. Lehtovuori, E. Raninen, and P. Ylä-Oijala, “Effect of shape deformation of a patch antenna on its characteristic modes,” in 2016 URSI International Symposium on Electromagnetic Theory (EMTS), Aug. 2016, pp. 690–693. [doi]

Theses

E. Raninen, “Scaled sparse linear regression with the elastic net,” Master’s thesis, Aalto University, 2017. [link]

E. Raninen, “Contributions to theory and estimation of high-dimensional covariance matrices,” Doctoral thesis, Aalto University, 2022. [link]