Zamani B., Akbari A., Nassersharif B. and Jalalvand A., Optimized Discriminative Transformations for Speech Features Based on Minimum Classification Error, Pattern Recognition Letters, Vol. 32, pp. 948–955, 2011.

R. Sahraeian, M. Mohammadi, A. Akbari, A. Ayatollahi, Evolutionary Eigenvoice MLLR Speaker Adaptation, Procedia-Computer Science Journal (Elsevier), Vol. 3, 2011.

Asgharian, Z.; Asgharian, H.; Akbari, A.; Raahemi, B.; , " A framework for SIP intrusion detection and response systems ," Computer Networks and Distributed Systems (CNDS), 2011 International Symposium on , vol., no., pp.100-105, 23-24 Feb. 2011 

M. Keramati, H. Asgharian, A. Akbari, “Cost-Aware Network Immunization Framework for Intrusion Prevention”, International Conference on Computer Applications and Industrial Electronics, pp. 321-326, 2011

 A. Madani, H. Asgharian, A. Akbari, “Improving of IMS SIP server security with vulnerability assessment”, 2nd InternationalSymposium on Computing in Science & Engineering, pp. 45-52, 2011

F. Safaei, H. Asgharian, A. Akbari, “Improving PMG Mechanism for SPIT Detection”, 2nd International Symposium on Computing in Science & Engineering, pp. 98-104, 2011