Sharil Tumin's picture
Sharil
Tumin
Senior Engineer
Visit Address: 
Nygårdsgt. 5
5020 BERGEN
Postal Address: 
Postboks 7800
5020 BERGEN
Phone: 
+47 55 58 42 72
+47 917 15 359
Download vCard
Books
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Improving Quality of the Decision Making Process in a Federated Learning System. Springer. 3 pages. ISBN: 978-3-540-88010-3.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Reducing Assessment Complexity of Stem-Responses with Belnap's Logic. IGI Global. 5 pages. ISBN: 978-1-4020-8738-7.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Drawing Conclusions in Presence of Inconsistent Data. Springer. 9 pages. ISBN: 978-3-540-78581-1.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Cooperative User-Centric Digital Identity Management Framework for Public Web Portals. Springer. 3 pages. ISBN: 978-3-540-88010-3.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Visualization of Cooperative Options for Small Maritime Companies. Springer. 3 pages. ISBN: 978-3-540-88010-3.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Inconsistency Management. Springer. 7 pages. ISBN: 978-3-540-85929-1.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Collaboration Options for Small and Medium Size Enterprises. Springer. 7 pages. ISBN: 978-3-540-85562-0.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Facilitating the Process of Providing Expert Advises Applying Association Rules. Springer Science+Business Media B.V.. 5 pages. ISBN: 978-1-4020-8736-3.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Attaining Higher Level of Certainty in Evaluation Processes. Springer. 7 pages. ISBN: 978-3-540-85562-0.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Assessment system providing meaningful responses in case of incomplete or inconsistent input. IADIS Press. 350 pages. ISBN: 9789728924430.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Application of Stratified Lattice Structures in Assessment of Knowledge. IEEE Computer Society. 450 pages. ISBN: 9780769527772.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Sharing Protected Web Resources. IGI Global. 750 pages. ISBN: 9781591409939.
  • Encheva, Sylvia; Tumin, Sharil; Solesvik, Maryna Z. 2007. Federated Knowledge Spaces. IEEE Computer Society. 450 pages. ISBN: 9780769527772.
Journal articles
  • Tumin, Sharil; Encheva, Sylvia. 2013. Enterprise-wide logging through software life-cycle. International Journal of Computer Science Issues. 10: 88-95.
  • Encheva, Sylvia Borissova; Tumin, Sharil; Solesvik, Marina. 2012. Project Proposals Ranking Based on Closed Sets Properties. Lecture Notes in Computer Science. 7647: 110-113. doi: 10.1007/978-3-642-32609-7_15
  • Tumin, Sharil; Encheva, Sylvia Borissova. 2012. A Closer Look at Authentication and Authorization Mechanisms for Web-based Applications. Proceedings of the WSEAS conferences. 100-105.
  • Tumin, Sharil; Encheva, Sylvia Borissova. 2012. Implementing Domain-wide Authenticator for Secure Web-based Applications Logon Procedure. Proceedings of the WSEAS conferences. 41-46.
  • Solesvik, Maryna; Encheva, Sylvia Borissova; Tumin, Sharil. 2011. Lattices and collaborative design in shipbuilding. International Journal of Business Information Systems. 7: 309-326. doi: 10.1504/IJBIS.2011.039333
  • Tumin, Sharil; Encheva, Sylvia Borissova. 2011. W-CAS: A Central Users Authentication and Authorization System for Enterprise Wide Web Applications. World Academy of Science, Engineering and Technology: An International Journal of Science, Engineering and Technology. 78. 907-914.
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2010. Hints, Learning Styles, and Learning Orientations. Proceedings of the WSEAS conferences. 189-194.
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2010. Rough Sets Approximations for Learning Outcomes. Communications in Computer and Information Science. 75: 63-72. doi: 10.1007/978-3-642-13467-8_7
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2010. On Indiscernibility in Assessments. Communications in Computer and Information Science. 124: 39-47.
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2010. Diagnostic Tests Based on Knowledge States. Lecture Notes in Computer Science. 6423: 133-141.
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2010. Evaluation of Learning Outcomes. Lecture Notes in Computer Science. 6483: 72-80.
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2010. Partial Orderings for Ranking Help Functions. WSEAS Transactions on Information Science and Applications. 830-839.
  • Encheva, Syvia Borissova; Tumin, Sharil. 2010. Cooperative Decision Making for Evaluating Ports' Reception Facilities. Lecture Notes in Computer Science. 6240: 101-104.
  • Tumin, Sharil; Encheva, Sylvia. 2010. Multi purpose web-based contractual management system. WSEAS Transactions on Information Science and Applications. 7: 819-829.
  • Tumin, Sharil; Encheva, Sylvia. 2010. Simplifying enterprise wide authorization management through distribution of concerns and responsibilities. WSEAS Transactions on Information Science and Applications. 7: 830-839.
  • Tumin, Sharil; Encheva, Sylvia Borissova. 2010. Securing Enterprise Wide Authorization Management Through Delegation. Proceedings of the WSEAS conferences. 81-86.
  • Tumin, Sharil; Encheva, Sylvia Borissova. 2010. W/CMS: Open-ended Web-based Contract Management System. Proceedings of the WSEAS conferences. 87-92.
  • Tumin, Sharil; Encheva, Sylvia Borissova. 2010. Web Engineering Process Matrix for Sustainable Deployment of Web-Based Applications. Lecture Notes in Computer Science. 6240: 278-281.
  • Tumin, Sharil; Encheva, Sylvia Borissova. 2010. Building Robust Web-based Systems by Managing Exceptions Through Logging, Reporting and Analysis. International Conference on Data Networks, Communications, Computers - Proceedings. 73-78.
  • Tumin, Sharil; Encheva, Sylvia Borissova. 2010. Securing Enterprise Wide Authorization Management Through Delegation. Journal of Electrical and Computer Engineering. 81-86.
  • Tumin, Sharil; Encheva, Syvia Borissova. 2010. Building Robust Web-based Systems by Managing Exceptions Through Logging, Reporting and Analysis. Proceedings of the WSEAS conferences. 73-79.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Effectiveness of Business Alliances Partnerships. Studies in Computational Intelligence. 226: 43-52. doi: 10.1007/978-3-642-02937-0_5
  • Encheva, Sylvia; Tumin, Sharil. 2009. Decision processes in public organizations. Wseas Transactions on Business and Economics. 6: 481-490.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Problem Identification Based on Fuzzy Functions. WSEAS Transactions on Advances in Engineering Education. 6: 111-120.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Secure Processes in Applications Workflow Facilitating Systems for On-line Exams. WSEAS Transactions on Advances in Engineering Education. 6: 173-182.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Automated Selections of new Business Interactions. Journal of Circuits, Systems and Computers. 18: 1533-1546. doi: 10.1142/S0218126609005848
  • Encheva, Sylvia; Tumin, Sharil. 2009. Problem Identification Based on Fuzzy Functions. WSEAS Transactions on Advances in Engineering Education. 6: 111-120.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Fuzzy dependencies between preparedness and learning outcome. IFIP Advances in Information and Communication Technology. 296. 535-540. doi: 10.1007/978-1-4419-0221-4_63
  • Encheva, Sylvia; Tumin, Sharil. 2009. Progress Evaluation Based on Fuzzy Relationships. Studies in Computational Intelligence. 226. 199-208. doi: 10.1007/978-3-642-02937-0
  • Encheva, Sylvia; Tumin, Sharil. 2009. Decision Processes in Public Organizations. Wseas Transactions on Business and Economics. 6: 481-490.
  • Tumin, Sharil; Encheva, Sylvia. 2009. A Flexible Implementation of a Web-based Election System for Educational Organizations. WSEAS Transactions on Computers. 8: 1721-1732.
  • Tumin, Sharil; Encheva, Sylvia. 2009. A Flexible Implementation of a Web-based Election System for Educational Organizations. WSEAS Transactions on Computers. 8: 1721-1732.
  • Tumin, Sharil; Encheva, Sylvia. 2009. Secure Processes in Applications Workflow Facilitating Systems for On-line Exams. WSEAS Transactions on Advances in Engineering Education. 6: 173-182.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Redusing Decision Complexity. Proceedings of the WSEAS conferences. 198-201.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Services in Untrusted Environment. Proceedings of the WSEAS conferences. 201-204.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Preventing Conflict Situations During Autorization. WSEAS Transactions on Computers. 4. 265-272.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Evaluating Responses Containing Both Correct and Incorrect Information. Proceedings of the WSEAS conferences.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Decision Support System for Assessing Companies Reliabilities. Wseas Transactions on Business and Economics. 44-49.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Automated Decision Support System Based on Ordered Sources. WSEAS Transactions on Information Science and Applications. 5: 356-364.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Improving Quality of the Decision Making Process in a Federated Learning System. Lecture Notes in Computer Science. 5220. 192-195.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Drawing Conclusions in Presence of Inconsistent Data. Lecture Notes in Computer Science. 4953. 32-41.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Uncertainties in Knowledge Assessment. WSEAS Transactions on Advances in Engineering Education. 5. 169-174.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Preventing Conflict Situations During Authorization. WSEAS Transactions on Computers. 7: 265-272.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Visualization of Cooperative Options for Small Maritime Companies. Lecture Notes in Computer Science. 5220. 180-183.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Enterprise Logon Server for Domain Wide Web Applications. Proceedings of the WSEAS conferences.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Decision Support System for Assessing Companies Reliabilities. Wseas Transactions on Business and Economics. 5: 44-49.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Attaining Higher Level of Certainty in Evaluation Processes. Lecture Notes in Computer Science. 304-311.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Uncertainties in Knowledge Assessment. WSEAS Transactions on Advances in Engineering Education. 5: 169-174.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Collaboration Options for Small and Medium Size Enterprises. Lecture Notes in Computer Science. 5177. 701-708.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Cooperative User-Centric Digital Identity Management Framework for Public Web Portals. Lecture Notes in Computer Science. 5220. 273-276.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Automated Decision Support System Based on Ordered Sources. WSEAS Transactions on Information Science and Applications. 4. 356-364.
  • Encheva, Sylvia; Solesvik, Maryna Z.; Tumin, Sharil. 2007. Intelligent Decision Support System for Evaluation of Ship Designers. Lecture Notes in Computer Science. 4692: 551-557. doi: 10.1007/978-3-540-74819-9_68
  • Encheva, Sylvia; Solesvik, Maryna Z.; Tumin, Sharil. 2007. Decision Support System for Assessing Participants Reliabilities in Shipbuilding. Proceedings of the WSEAS conferences. 270-275.
  • Encheva, Sylvia; Solesvik, Maryna Z; Tumin, Sharil. 2007. Application of paraconsistent annotated logic in intelligent systems. Lecture Notes in Computer Science. 4681: 702-710.
  • Encheva, Sylvia; Tumin, Sharil. 2007. On the Stimulating Effects of Multimedia Factors on Learning. Proceedings of the WSEAS conferences. 264-270.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Many-Valued Logic in an Intelligent Tutoring System. Proceedings of the WSEAS conferences. 211-216.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Management of Inconsistent Data. Lecture Notes in Computer Science. 4806: 1294-1302. doi: 10.1007/978-3-540-76890-6_57
  • Encheva, Sylvia; Tumin, Sharil. 2007. Application of default logic in an intelligent tutoring system. Lecture Notes in Computer Science. 4658: 486-493. doi: 10.1007/978-3-540-74573-0_50
  • Encheva, Sylvia; Tumin, Sharil. 2007. Positive and Negative Authorizations to Access Protected Web Resources. Lecture Notes in Computer Science. 4658: 79-87. doi: 10.1007/978-3-540-74573-0_9
  • Encheva, Sylvia; Tumin, Sharil. 2007. Knowledge Assessment Based on Many-Valued Logic. Lecture Notes in Computer Science. 4693: 885-892. doi: 10.1007/978-3-540-74827-4_111
  • Encheva, Sylvia; Tumin, Sharil. 2007. Decentralized administration in collaborating organizations. Proceedings of the WSEAS conferences. 351-353.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Application of default logic in an intelligent tutoring system. Lecture Notes in Computer Science. 486-494.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Positive and negative authorizations to access protected web resources. Lecture Notes in Computer Science. 4658: 79-84.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Authentication and Authorization User Management within a Collaborative Community. Proceedings of the WSEAS conferences. CSCC'07: 563-569.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Management of Inconsistent Data. Lecture Notes in Computer Science. 4806: 1294-1302.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Working with uncertainties in knowledge assessment. Proceedings of the WSEAS conferences. CIMMSC'07: 187-189.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Belnap's Logic in Sharing Protected Web Resources. Lecture Notes in Computer Science. 4693: 125-132. doi: 10.1007/978-3-540-74827-4_16
  • Encheva, Sylvia; Tumin, Sharil; Khattri, Sanjay Kumar. 2007. Non-classical Logic in an Intelligent Assessment Sub-system. Lecture Notes in Computer Science. 4705/2007: 9.
  • Encheva, Sylvia; Tumin, Sharil; Kondratenko, Yuriy. 2007. Application of paraconsistent annotated logic in intelligent systems. Lecture Notes in Computer Science. 4681: 702-710.
  • Encheva, Sylvia; Tumin, Sharil; Kondratenko, Yuriy; Khattri, Sanjay K. 2007. Non-classical Logic in an Intelligent Assessment Sub-system. Lecture Notes in Computer Science. 4705: 205-314. doi: 10.1007/978-3-540-74472-6_24
  • Encheva, Sylvia; Tumin, Sharil; Sampaio, P; Peralta, L. 2007. On Multimedia Factors Effecting Learning. Journal of Educational Multimedia and Hypermedia.
  • Solesvik, Maryna Z.; Encheva, Sylvia; Tumin, Sharil. 2007. Lattices and the Collaborative Design in Shipbuilding. Lecture Notes in Computer Science. 4674: 361-368. doi: 10.1007/978-3-540-74780-2_49
  • Solesvik, Maryna Z; Encheva, Sylvia; Tumin, Sharil. 2007. Lattices and the Collaborative Design in Shipbuilding. Lecture Notes in Computer Science. 4674: 361-368.
  • Sylvia, Encheva; Tumin, Sharil; Sampaio, Paulo; Peralta, Laura. 2007. On Multimedia Factors Effecting Learning. Journal of Educational Multimedia and Hypermedia. 2194-2201.
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2006. Application of association rules in education. Lecture notes in control and information sciences. 344: 834-838.
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2006. Application of association rules for finding correlations among students preliminary knowledge. Lecture Notes in Computer Science. 4101: 303-310.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Web Based Assessment of Students'Conceptual Thinking. WSEAS Transactions on Advances in Engineering Education. 3.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Application of association rules for finding correlations among students preliminary knowledge. Lecture Notes in Computer Science. 4101: 303-310.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Towards operational content infrastructure. Lecture Series on Computer and Computational Sciences.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Application of association rules in education. Lecture notes in control and information sciences. 344: 834-838.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Automated discovering of what is hindering the learning performance of a student. Lecture Notes in Computer Science. 3841: 521-531.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Efficient knowledge assessment based on convex geometrics. IFIP International Federation for Information Processing. 228.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Sharing protected web resources using distributed role-based modeling. Lecture Notes in Computer Science. 3841: 532-543.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Intelligent tutoring systems and convex geometries. Lecture Series on Computer and Computational Sciences.
  • Encheva, Sylvia; Tumin, Sharil. 2006. A tutoring system discovering gaps in the current body of student`s knowledge. IFIP International Federation for Information Processing. 204: 442-449.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Ordering of Knowledge Spaces. WSEAS Transactions on Advances in Engineering Education. 3: 908-914.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Assessing high-level thinking. Proceedings of the WSEAS conferences. DIWEB'07: 44-49.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Application of Association Rules for Efficient Learning Work-Flow. IFIP International Federation for Information Processing. 228.
  • Encheva, Sylvia; Tumin, Sharil. 2006. WEB-based assessment system for teaching mathematics on undergraduate level. Advanced Technology for Learning.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Efficient knowledge assessment based on convex geometrics. IFIP International Federation for Information Processing. 228.
  • Encheva, Sylvia; Tumin, Sharil. 2006. A tutoring system discovering gaps in the current body of student`s knowledge. IFIP International Federation for Information Processing. 204: 442-449.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Sharing protected web resources using distributed role-based modeling. Lecture Notes in Computer Science. 3841: 532-543.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Automated discovering of what is hindering the learning performance of a student. Lecture Notes in Computer Science. 3841: 521-531.
  • Encheva, Sylvia; Tumin, Sharil. 2005. On secure framework for web services in untrusted environment. Lecture Notes in Computer Science. 3762: 79-88.
  • Encheva, Sylvia; Tumin, Sharil. 2005. Security concerns for web services and applications. Lecture Notes in Computer Science. 3818: 261-262.
  • Encheva, Sylvia; Tumin, Sharil. 2005. Cooperative Shared Learning Objects in an Intelligent Web-Based Tutoring System Environment. Lecture Notes in Computer Science. 3675: 227-234.
  • Encheva, Sylvia; Tumin, Sharil. 2005. Responce-Driven Web-Based Assessment System. Lecture Notes in Computer Science. 3683: 749-756.
  • Encheva, Sylvia; Tumin, Sharil. 2005. On Secure Framework for Web Services in Untrusted Environment. Lecture Notes in Computer Science. 3762: 79-88.
  • Encheva, Sylvia; Tumin, Sharil. 2005. Security Concerns for Web Services and Applications. Lecture Notes in Computer Science. 3818: 261-262.
  • Encheva, Sylvia; Tumin, Sharil. 2005. Web-Based Assessment Tests Supporting Learning. Lecture Notes in Computer Science. 3807: 134-143.
  • Encheva, Sylvia; Tumin, Sharil. 2005. Web-based assessment tests supporting learning. Lecture Notes in Computer Science. 3807: 134-143.
  • Encheva, Sylvia; Tumin, Sharil. 2004. Collaborative role management for sharing protected web resources. Lecture Notes in Computer Science. 3190: 221-229.
  • Encheva, Sylvia; Tumin, Sharil. 2004. Collaborative role management for sharing protected Web resources. Lecture Notes in Computer Science. 3190: 221-229.
Reports and theses
  • Encheva, Sylvia; Tumin, Sharil. 2004. Groups and roles in FEIDE in collaboration. Universitetet i Bergen, Bergen. 47 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2001. On the application of multiple choice question tests for ICT in teaching mathematics. 6 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2001. On the application of multiple choice question tests for ICT in teaching mathematics. Technical reports. [Mangler utgivernavn]. 6 pages.
Book sections
  • Tumin, Sharil; Encheva, Sylvia Borissova. 2011. A Brief Look at Web Architecting. article, pages 245-249. In:
    • Mastorakis, Nikos; Mladenov, Valeri; Savkovic, Stevanovic J. 2011. Recent researches in communications electrical & computer engineering. 281 pages. ISBN: 978-960-474-286-8.
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2010. Fuzzy Knowledge Processing for Unveiling Correlations between Preliminary Knowledge and the Outcome of Learning New Knowledge. Kapittel, pages 179-182. In:
    • Iskander, Magued; Kapila, Vikram; Karim, Mohammad A. 2010. Technological Developments in Education and Automation. Springer. 537 pages. ISBN: 978-90-481-3655-1.
  • Encheva, Sylvia Borissova; Tumin, Sharil. 2010. Weak Orderings of Knowledge States. Kapittel, pages 7-12. In:
    • Elleithy, K.; Sobh, T.; Kapila, Vikram; Mahmood, A. 2010. Technological Developments in Networking, Education and Automation. Springer. 643 pages. ISBN: 978-90-481-9150-5.
  • Encheva, Sylvia; Tumin, Sharil. 2010. On Facilitating the Process of Providing Expert Advises Applying Association Rules. -, pages 242-247. In:
    • Sobh, Tarek; Elleithy, Khaled; Mahmood, Ausif. 2010. Novel Algorithms and Techniques in Telecommunications and Networking. Springer Publishing Company. 489 pages. ISBN: 978-90-481-3661-2.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Cycles in Directed Graphs and Inconsistencies in Decision Processes in Educational Institutions. -. In:
    • Pastae, Oana-Maria. 2009. DIWEB'09 Proceedings of the 9th WSEAS international conference on Distance learning and web engineering. World Scientific and Engineering Academy and Society. 115 pages. ISBN: 978-960-474-115-1.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Implementing Secure Processes in On-line Exams Workflow. In:
    • 2009. Proceedings of EDUTE. World Scientific and Engineering Academy and Society. 3320 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Evaluation Based on Fuzzy Relationships. -, pages 199-208. In:
    • Damiani, Ernesto; Jeong, Youn-Chang. 2009. New Directions in Intelligent Interactive Multimedia Systems and Services - 2. Springer. 556 pages. ISBN: 978-3-642-02936-3.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Fuzzy dependencies between preparedness and learning outcome. -, pages 535-540. In:
    • Iliadis, L.; Maglogiannis, Ilias; Tsoumakas, G*; Vlahavas, I.; Bramer, Max. 2009. Artificial Intelligence Applications and Innovations III. Proceedings of the 5th IFIP Conference on Artificial Intelligence Applications and Innovations (AIAI'2009), April 23-25, 2009, Thessaloniki, Greece. Springer. 535 pages. ISBN: 978-1-4419-0220-7.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Effectiveness of Business Alliances Partnerships. -, pages 43-52. In:
    • Damiani, Ernesto; Jeong, Youn-Chang. 2009. New Directions in Intelligent Interactive Multimedia Systems and Services - 2. Springer. 556 pages. ISBN: 978-3-642-02936-3.
  • Encheva, Sylvia; Tumin, Sharil. 2009. P-products for Selection of Ship Designers. -, pages 72-76. In:
    • Bulucea, Cornelia A.; Mladenov, Valeri; Leba, Monica; Mastorakis, Nikos. 2009. E-ACTIVITIES'09/ISP'09 Proceedings of the 8th WSEAS International Conference on E-Activities and information security and privacy. World Scientific and Engineering Academy and Society. 315 pages. ISBN: 978-960-474-143-4.
  • Encheva, Sylvia; Tumin, Sharil. 2009. Evaluation of Help Functions Based on Ordered Sets. In:
    • 2009. Proceedings of EDU. World Scientific and Engineering Academy and Society.
  • Encheva, Sylvia; Tumin, Sharil. 2009. User Logon and Access Control for Multi-domains Collaboration. -, pages 887-889. In:
    • Maroulis, George; Simos, Theodore E. 2009. COMPUTATIONAL METHODS IN SCIENCE AND ENGINEERING: Advances in Computational Science: Lectures presented at the International Conference on Computational Methods in Sciences and Engineering 2008 (ICCMSE 2008). American Institute of Physics (AIP). 678 pages. ISBN: 978-0-7354-0477-9.
  • Tumin, Sharil; Encheva, Sylvia. 2009. Problems and Solutions to a Large Scale Passwords Reset. -, pages 206-211. In:
    • Revetria, Roberto; Mladenov, Valeri; Mastorakis, Nikos. 2009. ACS'09 Proceedings of the 9th WSEAS international conference on Applied computer science. World Scientific and Engineering Academy and Society. 280 pages. ISBN: 978-960-474-127-4.
  • Tumin, Sharil; Encheva, Sylvia. 2009. Web-based Election System for Small Scale to Medium Scale Academic Societies. -. In:
    • Pastae, Oana-Maria. 2009. DIWEB'09 Proceedings of the 9th WSEAS international conference on Distance learning and web engineering. World Scientific and Engineering Academy and Society. 115 pages. ISBN: 978-960-474-115-1.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Distributed Role-Based Modeling. -, pages 149-155. In:
    • Guimarães, Nuno; Isaías, Pedro. 2008. Proceedings of the IADIS International Conference on Applied Computing. IADIS Press. 500 pages. ISBN: 978-972-8924-56-0.
  • Encheva, Sylvia; Tumin, Sharil. 2008. A Framework for Sharable WEB Applications Based on Lightweight Technology. -, pages 287-293. In:
    • Kommers, Piet; Isaías, Pedro. 2008. Proceedings of IADIS International Conference of e-Society 2008. IADIS Press. 500 pages. ISBN: 978-972-8924-55-3.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Security Using Simple Technological Framework for Trust Relations Within WEB Services. -, pages 323-326. In:
    • Guimarães, Nuno; Isaías, Pedro. 2008. Proceedings of the IADIS International Conference on Applied Computing. IADIS Press. 500 pages. ISBN: 978-972-8924-56-0.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Alternative Way for Solving Knowledge Representation Problems. -, pages 379-382. In:
    • Guimarães, Nuno; Isaías, Pedro. 2008. Proceedings of the IADIS International Conference on Applied Computing. IADIS Press. 500 pages. ISBN: 978-972-8924-56-0.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Automated Recommendations Based on Graded Degree of Uncertainties. -, pages 451-454. In:
    • Kommers, Piet; Isaías, Pedro. 2008. Proceedings of IADIS International Conference of e-Society 2008. IADIS Press. 500 pages. ISBN: 978-972-8924-55-3.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Enterprise Logon Server for Domain Wide Web Applications. -, pages 36-39. In:
    • Kartalopoulos, Stamatios; Buikis, Andris; Mastorakis, Nikos; Vladareanu, Luigi. 2008. Proceedings of the 7th WSEAS International Conference on CIRCUITS, SYSTEMS, ELECTRONICS, CONTROL and SIGNAL PROCESSING (CSECS'08). World Scientific and Engineering Academy and Society. 329 pages. ISBN: 978-960-474-035-2.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Automated Evaluation of Reusable Learning Objects via a Decision Support System. -, pages 76-82. In:
    • Davcev, Danco; Kohlenberg, Joséphine; Noll, Josef; Ortiz, Guadalupe; Chilamkurti, Naveen; Popescu, Manuela; Dini, Oana. 2008. The Third International Conference on Systems and Networks Communications on Systems and Networks Communications. IEEE Computer Society. 410 pages. ISBN: 978-0-7695-3371-1.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Inconsistency Management. -, pages 268-275. In:
    • Huang, De-shuang. 2008. Advanced Intelligent Computing Theories and Applications. With Aspects of Contemporary Intelligent Computing Techniques : 4th International Conference on Intelligent Computing, ICIC 2008 Shanghai, China, September 15-18, 2008 Proceedings. Springer. 1000 pages. ISBN: 9783540859307.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Web-based Assessment System Applying Many-valued Logic,. -. In:
    • Rabunal, Juan R.; Dorado, Julian; Sierra, Alejandro Pasos. 2008. Encyclopedia of Artificial Intelligence. Information Science Reference. 2200 pages. ISBN: 978-1-59904-849-9.
  • Encheva, Sylvia; Tumin, Sharil. 2008. A Mechanism for Federated Identification Services for Public Access Portals Using Access-Cards. -, pages 76-82. In:
    • Davcev, Danco; Kohlenberg, Joséphine; Noll, Josef; Ortiz, Guadalupe; Chilamkurti, Naveen; Popescu, Manuela; Dini, Oana. 2008. The Third International Conference on Systems and Networks Communications on Systems and Networks Communications. IEEE Computer Society. 410 pages. ISBN: 978-0-7695-3371-1.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Facilitating Automated Evaluation. -, pages 76-82. In:
    • Nunes, Miguel Baptista; PcPherson, Maggie. 2008. IADIS International Conference e-Learning 2008 (part of MCCSIS 2008). IADIS Press. 225 pages. ISBN: 978-972-8924-58-4.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Cooperative Learning Objects. -, pages 76-82. In:
    • Guimarães, Nuno; Isaías, Pedro. 2008. Proceedings of the IADIS International Conference on Applied Computing. IADIS Press. 500 pages. ISBN: 978-972-8924-56-0.
  • Encheva, Sylvia; Tumin, Sharil. 2008. On Attaining a Higher Level of Certainty in the Process of Decision Making. -, pages 278-281. In:
    • Simos, Theodore E.; Psihoyios, George. 2008. International Electronic Conference on Computer Science. American Institute of Physics (AIP). 440 pages. ISBN: 978-0-7354-0590-5.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Improving User Management in Networked Systems. -, pages 257-259. In:
    • Simos, Theodore E.; Psihoyios, George. 2008. International Electronic Conference on Computer Science. American Institute of Physics (AIP). 440 pages. ISBN: 978-0-7354-0590-5.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Evaluating Responses Containing Both Correct and Incorrect Information. -, pages 65-68. In:
    • NN, . 2008. The 13th WSEAS International Conference on APPLIED MATHEMATICS (MATH' 08). World Scientific and Engineering Academy and Society. 392 pages. ISBN: 978-960-474-034-5.
  • Encheva, Sylvia; Tumin, Sharil. 2008. Collaborative Multi-Domains Users' Authentication Framework for Shareable Web Applications. -, pages 282-285. In:
    • Simos, Theodore E.; Psihoyios, George. 2008. International Electronic Conference on Computer Science. American Institute of Physics (AIP). 440 pages. ISBN: 978-0-7354-0590-5.
  • Kondratenko, Yuriy; Solesvik, Maryna; Encheva, Sylvia; Tumin, Sharil. 2008. Decision Support Systems in Logistics. -, pages 254-256. In:
    • Simos, Theodore E.; Psihoyios, George. 2008. International Electronic Conference on Computer Science. American Institute of Physics (AIP). 440 pages. ISBN: 978-0-7354-0590-5.
  • Encheva, Sylvia; Solesvik, Maryna Z; Tumin, Sharil. 2007. Intelligent Decision Support System for Evaluation of Ship Designers. 551-557. In:
    • 2007. Lecture notes in artificial intelligence. Springer. 7 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Decentralized administration in collaborating organizations. -, pages 351-353. In:
    • Le, Minh Hung; Demiralp, Metin; Mladenov, Valeri; Bojkovic, Zoran. 2007. Proceedings if the 7th WSEAS International Conference on Applied Informatics & Communications. World Scientific and Engineering Academy and Society. 402 pages. ISBN: 978-960-8457-96-6.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Assessment system providing meaningful responses in case of incomplete or inconsistent input. In:
    • 2007. Visualization of correlations among delivery criteria in transport logistics. IADIS Press. 4 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2007. On the Stimulating Effects of Multimedia Factors on Learning. 264-270. In:
    • 2007. Proceedings of ICAI. World Scientific and Engineering Academy and Society. 7 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Authentication and Authorization User Management within a Collaborative Community. -, pages 563-569. In:
    • Le, Minh Hung; Demiralp, Metin; Mladenov, Valeri; Bojkovic, Zoran. 2007. Proceedings if the 7th WSEAS International Conference on Applied Informatics & Communications. World Scientific and Engineering Academy and Society. 402 pages. ISBN: 978-960-8457-96-6.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Decision Making Rules for Assessment of Students' Knowledge. -. In:
    • Uskov, Vladimir. 2007. Proceedings of the 10th IASTED International Conference on Computers and Advanced Technology in Education, October 8-10, Beijing, China. ACTA Press. 513 pages. ISBN: 978-0-88986-699-7.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Project Proposals Evaluation. -, pages 884-886. In:
    • Simos, Theodore E.; Maroulis, George. 2007. COMPUTATION IN MODERN SCIENCE AND ENGINEERING: Proceedings of the International Conference on Computational Methods in Science and Engineering 2007 (ICCMSE 2007): VOLUME 2, PARTS A and B. American Institute of Physics (AIP). 1500 pages. ISBN: 978-0-7354-0478-6.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Application of Meet-Distributive Lattices for Assessing Students Knowledge. In:
    • 2007. Cooperative Learning Objects in a Federated Learning System. Springer.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Decision Making Rules for Assessment of Students' Knowledge. 570-029. In:
    • Uskov, V. 2007. Computers and Advanced Technology in Education. ACTA Press. 350 pages. ISBN: 9780889866997.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Services in Untrusted Environment. -, pages 201-204. In:
    • Le, Minh Hung; Demiralp, Metin; Mladenov, Valeri; Bojkovic, Zoran. 2007. Proceedings if the 7th WSEAS International Conference on Applied Informatics & Communications. World Scientific and Engineering Academy and Society. 402 pages. ISBN: 978-960-8457-96-6.
  • Encheva, Sylvia; Tumin, Sharil. 2007. On Redusing Decision Complexity. -, pages 198-201. In:
    • Le, Minh Hung; Demiralp, Metin; Mladenov, Valeri; Bojkovic, Zoran. 2007. Proceedings if the 7th WSEAS International Conference on Applied Informatics & Communications. World Scientific and Engineering Academy and Society. 402 pages. ISBN: 978-960-8457-96-6.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Reducing Assessment Complexity of Stem-Responses with Belnap's Logic. -, pages 548-553. In:
    • Iskander, Magued. 2007. Innovations in E-learning, Instruction Technology, Assessment and Engineering Education. Springer. 472 pages. ISBN: 9781402062612.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Cooperative Learning Objects in a Federated Learning System. Educational Tools. In:
    • Iskander, Magued. 2007. Innovations in E-learning, Instruction Technology, Assessment and Engineering Education. Springer. 472 pages. ISBN: 9781402062612.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Many-Valued Logic in an Intelligent Tutoring System. 211-216. In:
    • 2007. MMF 2007. World Scientific and Engineering Academy and Society. 6 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Safe Logon with Free Lightweight Technologies. Web Security. In:
    • Sobh, T.; Elleithy, K.; Mahmood, A.; Karim, M. 2007. Innovative Algorithms and Techniques in Automation, Industrial Electronics and Telecommunications. Springer. 552 pages. ISBN: 9781402062650.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Many-Valued Logic in an Intelligent Tutoring System. 211-216. In:
    • 2007. MMF 2007. World Scientific and Engineering Academy and Society. 6 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Belnap's Logic in Sharing Protected Web Resources. 125-132. In:
    • 2007. Lecture notes in artificial intelligence. Springer. 7 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Application of Meet-Distributive Lattices for Assessing Students Knowledge. Educational Tools. In:
    • Iskander, Magued. 2007. Innovations in E-learning, Instruction Technology, Assessment and Engineering Education. Springer. 472 pages. ISBN: 9781402062612.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Sharing Protected Web Resources. -, pages 539-544. In:
    • Freire, Mario; Pereira, Manuela. 2007. Encyclopedia of Internet Technologies and Applications. 789 pages. ISBN: 978-1-59140-993-9.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Cooperative Learning Objects in a Federated Learning System. -. In:
    • Iskander, Magued. 2007. Innovations in E-learning, Instruction Technology, Assessment and Engineering Education. Springer. 472 pages. ISBN: 9781402062612.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Safe Logon with Free Lightweight Technologies. -. In:
    • Sobh, T.; Elleithy, K.; Mahmood, A.; Karim, M. 2007. Innovative Algorithms and Techniques in Automation, Industrial Electronics and Telecommunications. Springer. 552 pages. ISBN: 9781402062650.
  • Encheva, Sylvia; Tumin, Sharil. 2007. Application of Stratified Lattice Structures in Assessment of Knowledge. -, pages 638-643. In:
    • Kim, Seok Soo. 2007. Proceedings of the 2007 International Conference on Multimedia and Ubiquitous Engineering (MUE'07). IEEE Computer Society. 500 pages. ISBN: 0-7695-2777-9.
  • Solesvik, Maryna Z; Encheva, Sylvia; Tumin, Sharil. 2007. Decision Support System for Assessing Participants Reliabilities in Shipbuilding. 270-275. In:
    • 2007. Proceedings of ACMOS. World Scientific and Engineering Academy and Society. 6 pages.
  • Tumin, Sharil; Encheva, Sylvia; Solesvik, Maryna Z. 2007. Federated Knowledge Spaces. 26-31. In:
    • Encheva, Sylvia; Tumin, Sharil; Solesvik, Maryna Z. 2007. Federated Knowledge Spaces. IEEE Computer Society. 450 pages. ISBN: 9780769527772.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Concept Lattices for Federated Learning Systems. In:
    • 2006. EDU`06. World Scientific and Engineering Academy and Society.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Safe use of protected web resources. In:
    • 2006. Intelligent Information Processing III. Springer.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Assessing high-level thinking. 44-49. In:
    • 2006. Proceedings of DIWEB. World Scientific and Engineering Academy and Society. 6 pages.
  • Encheva, Sylvia; Tumin, Sharil. 2006. Automated Knowledge Assessment and Knowledge Spaces. In:
    • 2006. EDU`06. World Scientific and Engineering Academy and Society.
  • Encheva, Sylvia; Tumin, Sharil. 2005. Cooperative Learning Objects in an Intelligent Web-Based Tutoring System Environment. 504-508. In:
    • 2005. Advanced Industrial Conference on Telecommunications/Service Assurance with Partial and Intermittent Resources Conference/E-Learning on Telecommunications Workshop (AICT/SAPIR/ELETE'05). IEEE Computer Society. 5 pages.

More information in national current research information system (CRIStin)