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This is to certify that your paper entitled «A Comparison of PCA, ICA and Neural Network-based Approaches for Determination of Regulatory Signals in Biological Systems» was indexed with 6 pages, in the CIVILICA citation database, code COI:ICIKT02_097, after evaluation and approval of the referees of the "2nd International Conference on Information and Knowledge Technology held in Tehran 2005.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above conference and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.