2009
- I.Buciu, C.Kotropoulos and I.Pitas, "Comparison of ICA approaches for facial expression recognition", Signal, Image, and Video Processing, vol. 3, no. 4, pp. 1703-1711, December, 2009 (DOI: 10.1007/s11760-008-0074-3).
2008
- I.Buciu, N.Nikolaidis and I.Pitas, "Non-negative matrix factorization in polynomial feature space", IEEE Trans. on Neural Networks, vol. 19 no. 6, pp. 1090-695, June, 2008.
- I.Kotsia, I.Buciu and I.Pitas, "An analysis of facial expression recognition under partial facial image occlusion", Elsevier Image and Vision Computing journal, vol. 26, no. 7, pp. 1052-1067, July, 2008.
2006
- I.Buciu and I.Pitas, "NMF, LNMF and DNMF modeling of neural receptive fields involved in human facial expression perception", Journal of Visual Communication and Image Representation, vol. 17, no. 5, October, 2006.
- S.Zafeiriou, A.Tefas, I.Buciu and I.Pitas, "Exploiting Discriminant Information in Non-negative Matrix Factorization with application to Frontal Face Verification", IEEE Transactions on Neural Networks, vol. 17, no. 3, pp. 683-695, May, 2006.
- I.Buciu, C.Kotropoulos and I.Pitas, "Demonstrating the stability of support vector machines for classification", Signal Processing Elsevier, vol. 86, no. 9, pp. 2364 - 2380, 2006.
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