Contents
Cybernetics and Information Technologies
Volume 13, No 3. Sofia, 2013
| L. Wang, Z. Liu, X. Jin, Y. Shi Reliability Estimation Based on the Degradation Amount Distribution Using Composite Time Series Analysis and Grey Theory | 3 |
| T. K. Samanta, S. Mohinta Fixed Point Theorem for Converse Commuting Mapping in Symmetric Spaces | 15 |
| J. Zhu, M. Wang, Z. Wei, B. Cao An Efficient Data Structure for Representing Trilateral/Quadrilateral Subdivision Surfaces | 36 |
| A. Gaur, B. D. Sharma Upper Bound on Correcting Partial Random Errors | 41 |
| V. U. K. Sastry, N. R. Shankar, S. D. Bhavani A Large Block Cipher Involving Key Dependent Permutation, Interlacing and Iteration | 50 |
| J. Yan, Z. Wu, H. Luo, S. Zhang P2P Traffic Identification Based on Host and Flow Behaviour Characteristics | 64 |
| S.-S. Tu, S.-Z. Niu, M.-J. Li An Efficient Access Control Scheme for Cloud Environment | 77 |
| C. Dichev, D. Dicheva, G. Agre, G. Angelova Current Practices, Trends and Challenges in K-12 Online Learning | 91 |
| H. Yang, D. Luo Acyclic Real-Time Traffic Signal Control Based on a Genetic Algorithm | 111 |
| M. Anouncia S., C. Madonna L. J., P. Jeevitha, R. T. Nandhini Design of a Diabetic Diagnosis System Using Rough Sets |
124 |
| R. J. Subalakshmi, Haleema, N. C. S. N. Iyengar Enhancing a Traditional Health Care System of an Organization for Better Service with Agent Technology by Ensuring Confidentiality of Patients Medical InformationSets | 140 |

Print ISSN: 1311-9702
Online ISSN: 1314-4081
Frequency: 4 issues per year