| From CBT to e-Learning S Stoyanov, I Ganchev, I Popchev, M O’droma Journal Information Technologies and Control 3 (4), 2-10, 2005 | 91 | 2005 |
| Properties of the aggregation operators related with fuzzy relations V Peneva, I Popchev Fuzzy Sets and Systems 139 (3), 615-633, 2003 | 77 | 2003 |
| DeLC educational portal S Stoyanov, I Popchev, E Doychev, D Mitev, V Valkanov, ... Cybernetics and Information Technologies 10 (3), 49-69, 2010 | 65 | 2010 |
| An Approach for the Development of InfoStation-Based eLearning Architectures S Stoyanov, I Ganchev, I Popchev, M O’Droma Compt. Rend. Acad. Bulg. Sci 61 (9), 1189-1196, 2008 | 56 | 2008 |
| Comparison of clusters from fuzzy numbers V Peneva, I Popchev Fuzzy Sets and Systems 97 (1), 75-81, 1998 | 54 | 1998 |
| Towards big data analytics in the e-learning space IP Popchev, DA Orozova Cybernetics and information technologies 19 (3), 16-24, 2019 | 45 | 2019 |
| Aggregation of fuzzy preference relations to multicriteria decision making V Peneva, I Popchev Fuzzy Optimization and Decision Making 6 (4), 351-365, 2007 | 34 | 2007 |
| DeLC-distributed eLearning center S Stojanov, I Ganchev, I Popchev, M O’Droma, R Venkov Proc. of the 1st Balkan Conference on Informatics BCI, 327-336, 2003 | 34 | 2003 |
| Learning intelligent system for student assistance-LISSA J Todorov, S Stoyanov, V Valkanov, B Daskalov, I Popchev 2016 IEEE 8th international conference on intelligent systems (IS), 753-757, 2016 | 29 | 2016 |
| Fuzzy multi-criteria decision making algorithms V Peneva, I Popchev Compt. Rend. Acad. Bulg. Sci 63 (7), 979-992, 2010 | 29 | 2010 |
| Automatic generation of test questions by software agents using ontologies NS Stancheva, I Popchev, A Stoyanova-Doycheva, S Stoyanov 2016 IEEE 8th International Conference on Intelligent Systems (IS), 741-746, 2016 | 28 | 2016 |
| Multicriteria decision making based on fuzzy relations V Peneva, I Popchev Cybernetics and Information Technologies 8 (4), 3-12, 2008 | 24 | 2008 |
| A model for generation of test questions N Stancheva, A Stoyanova-Doycheva, S Stoyanov, I Popchev, V Ivanova Comptes rendus de l’Academie bulgare des Sciences 70 (5), 619-630, 2017 | 23 | 2017 |
| A Multi-step procedure for asset allocation in case of limited resources PV Georgieva, IP Popchev, SN Stoyanov Cybernetics and information technologies 15 (3), 41-51, 2015 | 23 | 2015 |
| Intelligent distributed eLearning architecture S Stoyanov, H Zedan, E Doychev, V Valkanov, I Popchev, G Cholakov, ... Intelligent Systems, 185-218, 2012 | 23 | 2012 |
| Evolutionary Development of an Infrastructure Supporting the Transition from CBT to e-Learning S Stoyanov, I Popchev Cybernetics and Information Technologies 6 (2), 101-114, 2006 | 23 | 2006 |
| Fuzzy logic Q-measure model for managing financial investments P Georgieva, I Popchev Compus Rendus Acad. Bulg. Sci, 2013 | 22 | 2013 |
| Sensitivity of the matrix equation A0+∑ k i= 1 σiA∗ i Xpi Ai= 0, σi=±1 M Konstantinov, P Petkov, I Popchev, V Angelova Appl. Comput. Math 10 (3), 409-427, 2011 | 21 | 2011 |
| Models for fuzzy multicriteria decision making based on fuzzy relations V Peneva, I Popchev Compt. rend. Acad. bulg. Sci 62 (5), 551-558, 2009 | 21 | 2009 |
| Enhancement of DeLC for the provision of intelligent mobile services I Ganchev, S Stojanov, M O'Droma, I Popchev 2004 2nd International IEEE Conference on'Intelligent Systems'. Proceedings …, 2004 | 21 | 2004 |
