| 2005 | ICCV | Objective Image Fusion Performance Characterisation. | Vladimir S. Petrovic, Costas S. Xydeas |
| 2004 | ECCV | Evaluation of Image Fusion Performance with Visible Differences. | Vladimir S. Petrovic, Costas S. Xydeas |
| 2004 | HIS | Behavior Modeling Using a Hierarchical HMM Approach. | Shih-Yang Chiao, Costas S. Xydeas |
| 2003 | ICASSP | Model-based packet loss concealment for AMR coders. | Costas S. Xydeas, Fotis Zafeiropoulos |
| 2003 | ICALT | Total Quality Management for Electronic Educational Markets. | Lampros K. Stergioulas, Hassan Ahmed, Costas S. Xydeas, Bernd Simon |
| 2003 | KES | Classification of Decision-Behavior Patterns in Multivariate Computer Log Data Using Independent Component Analysis. | Serafeim Fragos, Lampros K. Stergioulas, Costas S. Xydeas |
| 1999 | ICASSP | Segmental prototype interpolation coding. | Costas S. Xydeas, Thomas M. Chapman |
| 1999 | Interspeech | Secondary codebook storage quantisation. | Thomas M. Chapman, Costas S. Xydeas |
| 1998 | ICASSP | Multicodebook vector quantization of LPC parameters. | Costas S. Xydeas, Thomas M. Chapman |
| 1997 | ICASSP | Efficient mixed excitation models in LPC based prototype interpolation speech coders. | Charalampos Papanastasiou, Costas S. Xydeas |
| 1997 | Interspeech | A novel 1.7/2.4 kb/s DCT based prototype interpolation speech coding system. | Costas S. Xydeas, Gokhan H. Ilk |
| 1995 | ICASSP | Efficient coding of LSP parameters using split matrix quantisation. | Costas S. Xydeas, Charalampos Papanastasiou |
| 1995 | ICDAR | Model matching in intelligent document understanding. | Gary S. D. Farrow, Costas S. Xydeas, John P. Oakley |
| 1994 | ICASSP | Conversion of scanned documents to the open document architecture. | Gary S. D. Farrow, Costas S. Xydeas, John P. Oakley |
| 1993 | ICASSP | A long history quantization approach to scalar and vector quantization of LSP coefficients. | Costas S. Xydeas, K. K. M. So |
| 1992 | EDBT | The Manchester Multimedia Information System. | Carole A. Goble, Michael O'Docherty, Peter Crowther, Mark Ireton, John P. Oakley, Costas S. Xydeas |
| 1991 | ICASSP | A novel graph-theoretic texture segmentation algorithm. | H. Ahmed, C. N. Daskalakis, Costas S. Xydeas |
| 1989 | ICASSP | On improving vector excitation coders through the use of spherical lattice codebooks (SLCs). | Mark Ireton, Costas S. Xydeas |
| 1983 | ICASSP | Frequency compression of 7.6 kHz speed into 3.3 kHz bandwidth. | P. J. Patrick, Raymond Steele, Costas S. Xydeas |
| 1982 | ICASSP | A comparative study of DPCM-AQF speech coders for bit rates of 16-32 kb/s. | Costas S. Xydeas, Cumhur Cengiz Evci |
| 1981 | ICASSP | Wideband quality speech encoders with bit rates of 16-32 kbits/s. | P. J. Patrick, Costas S. Xydeas, Raymond Steele, Wai-kuen Cham |
| 1979 | ICASSP | Sequential gradient estimation predictor for speech signals. | Cumhur Cengiz Evci, Raymond Steele, Costas S. Xydeas |