The publishing of the present issue (Volume 21, No 1, 2021) of the journal "Cybernetics and Information Technologies", is financially supported by the National Science Fund under competition "Bulgarian Scientific Periodicals – 2021".
| Melda Kokoç, Süleyman Ersöz - New Ranking Functions for Interval-Valued Intuitionistic Fuzzy Sets and Their Application to Multi-Criteria Decision-Making Problem |
3 |
| Todor Stoilov, Krasimira Stoilova, Miroslav Vladimirov - The Probabilistic Risk Measure VaR as Constraint in Portfolio Optimization Problem |
19 |
| Laxminath Tripathy, Chita Ranjan Tripathy - Hierarchical Hexagon: A New Fault-Tolerant Interconnection Network for Parallel Systems |
32 |
| Krasimir Kordov, Georgi Dimitrov - A New Symmetric Digital Video Encryption Model |
50 |
| Madhumala R. B., Harshvardhan Tiwari, Devaraj Verma C. - Virtual Machine Placement Using Energy Efficient Particle Swarm Optimization in Cloud Datacenter |
62 |
| Albena Tchamova, Jean Dezert, Nadejda Bocheva, Pavlina Konstantinova, Bilyana Genova, Miroslava Stefanova - A Study on Human Learning Ability during Classification of Motion and Colour Visual Cues and Their Combination |
73 |
| Ropo E. Ogunsakin, Sibusiso Moyo, Oludayo, O. Olugbara, Connie Israel - Relating Student Engagement Indicators to Academic Performance Using Multiple Correspondence Analysis |
87 |
| Qusai Y. Shambour, Nidal M. Turab, Omar Y. Adwan - An Effective e-Commerce Recommender System Based on Trust and Semantic Information |
103 |
| V. Ivanova, P. Vasilev, I. Stoianov, R. Andreev, A. Boneva - Design of a Multifunctional Operating Station Based on Augmented Reality (MOSAR) |
119 |
| Mosleh M. Abualhaj, Mayy M. Al-Tahrawi, Mahran Al-Zyoud - Contracting VoIP Packet Payload Down to Zero |
137 |
| H. Uzunov, P. Matzinski, S. Dechkova, N. Dimov - Systems Engineering Information Model of Vehicle-Pedestrian Collisions |
151 |
| Bolshina Angelina, Natalia Loukachevitch - Errata to the paper "All-words Word Sense Disambiguation for Russian Using Automatically Generated Text Collection" (Published in Vol. 20, No 4, pp. 90-107, DOI: 10.2478/cait-2020-0049) |
169 |
| Z. Kancheva, I. Radev - Erratum to the paper "Linguistic vs Encyclopaedic Knowledge. Classification of MWEs from Wikipedia Articles" (Published in Vol. 20, No 4, pp. 125-140, DOI: 10.2478/cait-2020-0051) |
170 |
| Anton Betten, Stela Topalova, Svetlana Zhelezova - Erratum to the paper "New Uniform Subregular Parallelisms of PG (3, 4) Invariant under an Automorphism of Order 2" (Published in Vol. 20, 2020, No 6, pp. 18-27, DOI: 10.2478/cait-2020-0057) |
171 |
