Publications

Journal papers

  1. Christian Sacarea, Alexandru Tamasan, On some nonlinear Volterra integral equations, Seminar on Fixed Point Theory, 45-49, 1992.
  2. Christian Sacarea, A counting method for algebraic structures on finite sets (in Romanian), Lucrarile Seminarului de Didactica Matematicii, Vol. 9, pp. 185-190, 1993.
  3. Gerd Hartung, Morike Kamara, Christian Sacarea, A topological representation for polarity lattices, Acta Math. Univ. Comenianae, Vol. LXVIII, 1(1999), pp. 49-70, 1999.
  4. Christian Sacarea, A note on standard topological contexts with pseudometric, Studia Univ. Babes-Bolyai (Ser. Mathematica), Vol. XLVI, Nr. 3, pp. 89-110, 2001.
  5. Christian Sacarea, Von Information zum Wissen. Ein Beitrag zur Approximierung in begriffiche Wissenssysteme, Annals of the Tiberiu Popoviciu Seminar of Functional Equations, Approximation and Convexity, Interdisciplinary Research, vol. 1, 2002.
  6. Christian Sacarea, Concept lattices and grammar. A discussion on Brancusi sculptures, Annals of the Tiberiu Popoviciu Seminar of Functional Equations, Approximation and Convexity, Interdisciplinary Research, vol. 2, 2004.
  7. Brigitte Breckner, Christian Sacarea, From the Iwasawa decomposition to a Tits system, Annals of the Tiberiu Popoviciu Seminar of Functional Equations, Approximation and Convexity, Interdisciplinary Research, vol. 3, 2005.
  8. Christian Sacarea, Csaba Szanto, Istvan Suteu Sollosi, Combining the Solitaire Encryption Algorithm with Lagged Fibonacci Pseudorandom Number Generators, Mathematica, Tome 51(74), No. 2, pp. 163-171, 2009.
  9. Christian Sacarea, Viorica Varga, Conceptual Knowledge Processing for Databases. An Overview, Studia Univ. Babes-Bolyai, Ser. Informatica, LIV, vol. 2, pp. 59-70, 2009.
  10. Zsuzsanna Marian, Christian Sacarea, Discovering Patterns in Music. An FCA grounded approach, Studia Univ. Babes-Bolyai, Ser. Informatica, LV, vol. 1, pp. 69-82, 2010.
  11. F. Muntenescu, C. Sacarea, V. Varga, Conceptual Graph Driven Design for Conceptual Digital Dossiers, Studia Univ. Babes-Bolyai, Ser. Informatica, LV, vol. 1, pp. 83-94, 2010.
  12. A. Brad, L. Neamtiu, S. Rausanu, C. Sacarea, Conceptual knowledge processing grounded logical information system for oncological databases, Studia Univ. Babes-Bolyai, Ser. Informatica, nr. 2, vol. LVI, pp.51-54, 2011.
  13. Alin Suciu, Christian Sacarea, Marton Kinga, Cret Octavian, Generation and Testing of Random Numbers for Cryptographic Applications, Proceedings of the Romanian Academy, series A: Mathematics, Physics, Technical Sciences, Information Science, No.4, pp. 368-377, 2012.
  14. Sanda Dragoş, Christian Săcărea, Analysing the Usage of Pulse Portal with Formal Concept Analysis, Studia Univ. Babes-Bolyai, Ser. Informatica, LVII, nr. 3, pp. 65-75., 2012.
  15. Christian Sacarea, Viorica Varga, Triadic Approach to Conceptual Design of XML Data, Studia Univ. Babes-Bolyai, Ser. Informatica, LIX, special issue 2, pp. 5-9, 2014.
  16. Christian Sacarea, Viorica Varga, An FCA Driven Analysis of Mapping Conceptual Designs to XML Schemas, Studia Univ. Babes-Bolyai, Ser. Informatica, LIX, vol. 1, pp. 46-57, 2014.
  17. S. Dragos, D. Halita, Ch. Sacarea, D. Troanca, An FCA grounded study of user dynamics through log exploration, Studia Univ. Babes-Bolyai, Ser. Informatica, LIX, vol. 2, pp. 82-97, 2014.
  18. B. Breckner, Ch. Sacarea, Some categorical aspects in topological formal concept analysis, Mathematica, 59(82), pp. 15-31, 2017.

Conference proceedings papers

  1. Brigitte Breckner, Christian Sacarea, Tits system in parabolic subgroups of semisimple Lie groups, Proceedings of the Algebra Symposium, pp. 31-40, 2005.
  2. Sacarea Christian, Meza Radu-Mihai, Cimpoi Mircea, Improving Conceptual Search Results Reorganisation Using Term-Concept Mapping Retrieved from Wikipedia, IEEE International Conference on Automation, Quality and Testing, Robotics (AQTR) Conference Proceedings, pp. 234-238, 2008.
  3. V. Varga, Ch. Săcărea, A. Takacs, A Software Tool for Interactive Database Access Using Conceptual Graphs, International Conference KEPT 2009, Knowledge Engineering Principles and Techniques, Cluj-Napoca, July 2-4, 2009.
  4. Christian Sacarea, Conceptual Digital Dossier. Towards a new paradigm for digital content management, Proceedings of the Trajectories in Researching New Media Systems, E-business Management and E-publishing International Conference,  Ed. Universitas Napocensis Babes Bolyai, ISBN 978-973-647-685-3, Babes-Bolyai University Publishing House , 2009.
  5. Viorica Varga, Christian Sacarea, Andrea Takacs, Conceptual Graphs Based Representation and Querying of Databases, Proceedings of 2010 IEEE International Conference on Automation, Quality and Testing, Robotics, Tome III, ISBN: 978-1-4244-6722-8, pp. 159-164, 2010.
  6. Viorica Varga, Katalin Tunde Janosi-Rancz, Christian Sacarea, K. Csioban, XML Design: an FCA Point of View,  Proceedings of 2010 IEEE International Conference on Automation, Quality and Testing, Robotics, Tome III, ISBN: 978-1-4244-6722-8 pp. 165-170, 2010.
  7. Christian Sacarea, Zsuzsanna Marian, Using Contextual Topology to Discover Similarities in Modern Music, Proceedings of 2010 IEEE International Conference on Automation, Quality and Testing, Robotics, Tome III, ISBN: 978-1-4244-6722-8, pp. 213-218, 2010.
  8. Paul Valentin Borza, Ovidiu Sabou, Christian Sacarea, OpenFCA, an open source Formal Concept Analysis toolbox, Proceedings of 2010 IEEE International Conference on Automation, Quality and Testing, Robotics, Tome III, ISBN: 978-1-4244-6722-8,  pp. 208-212, 2010.
  9. Doina Tatar, Epaminondas Kapetanios, Christian Sacarea, Diana Tanase, Text Segments as Constrained Formal Concepts,  Proceedings of SYNASC 2010, IEEE 2011, pp. 223-228, 2011.
  10. Christian Sacarea, Silviu Boldeanu, Luciana Neamtiu, Cezara Pastrav, Investigating Adverse Drug Reactions Using Conceptual Landscapes, Proceedings of 2011 IEEE 7th International Conference on Intelligent Computer Communication and Processing, 41-48, 2011.
  11. Christian Sacarea, Marius Georgescu, Corneliu Ailincai, Florina Muntenescu, Cezara Pastrav, A Contextual Logic Grounded Approach to Visual Arts, Proceedings of 2011 IEEE 7th International Conference on Intelligent Computer Communication and Processing, 49-56, 2011.
  12. Zsuzsanna Marian, Christian Sacarea, Using Conceptual Graphs to Represent Modern Music, Proceedings of 2011 IEEE 7th International Conference on Intelligent Computer Communication and Processing, 137-140, 2011.
  13. Christian Sacarea, Contextual Uniformities, 11th International Conference, Proceedings, LNAI 7880, Springer Verlag, Heidelberg, pp. 244-253, 2013.
  14. Alina Andreica, Josef Küng, Gabriela Şerban Czibulla and Christian Sacarea, Designing a General Architecture for Data Interchange, 10th International Conference on Web Information Systems and Technologies, SCITEPRESS – Science and Technology Publications, 978-989-758-023-9, pp. 214-219, 2014.
  15. Christian Sacarea, Investigating oncological databases using conceptual landscapes, Graph-Based Representation and Reasoning, Proceedings of the International Conference on Conceptual Structures,  LNAI 8577, Springer, pp. 299-304, 2014.
  16. Sanda Dragos, Diana Halita, Christian Sacarea, Diana Troanca, Applying Triadic FCA in Studying Web Usage Behaviors, LNCS 8793, Proceedings of the International Conference on Knowledge Science, Engineering and Management, Springer, pp. 73-80, 2014.
  17. Sebastian Rudolph, Christian Sacarea, Diana Troanca,  Membership Constraints in Formal Concept Analysis, Proceedings of the 24th International Joint Conference on Artificial Intelligence (IJCAI), pp. 3186 – 3192, 2015.
  18. Sebastian Rudolph, Christian Sacarea, Diana Troanca, Reduction in Triadic Data Sets, Workshop FCA4AI „What cand FCA do for Artificial Intelligence?”, pp. 55-62, 2015.
  19. Sebastian Rudolph, Christian Sacarea, Diana Troanca, Towards a Navigation Paradigm for Triadic Concepts, Proceedings of the 14th International Conference on Formal Concept Analysis, ICFCA 2015, Springer Verlag, pp. 252-267, 2015.
  20. Sanda Dragos, Diana Halita, Christian Sacarea, Attractors in Web Based Educational Systems. A Conceptual Knowledge Processing Grounded Approach, Proceedings of the 8th International Conference on Knowledge Science, Engineering and Management (KSEM 2015), Springer Verlag, 2015.
  21. Sanda Dragos, Diana Halita, Christian Sacarea, Behavioral Pattern Mining in Web Based Educational Systems, Proceedings of the 23rd International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2015), IEEE, 2015.
  22. Dan Andrei Sitar Taut, Christian Sacarea, Adela Viviana Sitar Taut, Knowledge Visualization for Supporting Communication in Cardiovascular Risk Assessment Hypothesis, Proceedings of the 23rd International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2015), IEEE, 2015.
  23. Sanda Dragos, Diana Halita, Christian Sacarea, Distilling Conceptual Structures from Weblog Data Using Polyadic FCA, ICCS,Graph-Based Representation and Reasoning, Proceedings of the International Conference on Conceptual Structures 2016, LNCS vol. 9717, pp. 151—159.
  24. Rudolph, C. Sacarea, D. Troanca, Conceptual Navigation for Polyadic Formal Concept Analysis, Proceedings of the 4th International Workshop on Artificial Intelligence for Knowledge Management collocated with IJCAI 2016 (AI4KM2016), pp. 35—41.
  25. Diana Haliţă, Christian Săcărea, Is FCA suitable to improve Electronic Health Record Systems?, The 24th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2016), Split, Croatia.
  26. Sanda Dragoş, Diana Haliţă, Christian Săcărea, Analysing the Effect of Changing the Educational Methods by Using FCA, The 24th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2016), Split, Croatia.
  27. Levente Lorand Kis, Christian Săcărea, Diana Troancă, FCA Tools Bundle – a Tool that Enables Dyadic and Triadic Conceptual Navigation, 5th International Workshop FCA4AI 2016 collocated with the European Conference on Artificial Intelligence, ECAI 2016, pp. 43—51, The Hague, Netherlands
  28. Sanda Dragoș, Christian Săcărea, Diana Șotropa, An Investigation of User Behavior in Educational Platforms Using Temporal Concept Analysis,  14th International Conference, ICFCA 2017, Rennes, France, June 13-16, 2017, Proceedings, LNAI 10308, pp. 122-137.
  29. Beniamin Movileanu, Christian Săcărea, Diana Șotropa, FACT – A tool for Temporal Formal Concept Analysis, 14th International Conference, ICFCA 2017, Rennes, France, June 13-16, 2017, Supplementary Proceedings, pp. 95-98.
  30. Lorand Levente Kis, Christian Săcărea, Diana Troancă, Navigation and Exploration Tool for Polyadic FCA, 14th International Conference, ICFCA 2017, Rennes, France, June 13-16, 2017, Supplementary Proceedings, pp. 83-86.
  31. Christian Săcărea, Diana Șotropa, Diana Troancă, Symptoms investigation by means of Formal Concept Analysis for enhancing medical diagnoses,  The 25th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2017), Split, Croatia.
  32. Andrea Molnar, Viorica Varga, Christian Săcărea, Conceptual Graphs Based Modeling and Querying of XML Data, The 25th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2017), Split, Croatia.
  33. Sanda Dragoș, Christian Sacarea, Diana Șotropa, Investigating Educational Attractors and Life Tracks in e-Learning Environments Using Formal Concept Analysis, The 25th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2017), Split, Croatia.
  34. Diana Troanca, Christian Săcărea, Sanda Dragos, Using Pattern Structures for Mining Student Behaviour in E-learning Platforms on specific Triggers, The 25th International Conference on Software, Telecommunications and Computer Networks (SoftCOM 2017), Split, Croatia.
  35. Andrea Eva Molnar,  Viorica Varga, Christian Săcărea,  Dan Cîmpan,  Bogdan Mocian, Conceptual Graph driven modeling and querying methods for RDMBS and XML databases, 13th International Conference on Intelligent Computer Communication and Processing (ICCP 2017), September 7 – 9, 2017 in Cluj-Napoca, Romania.
  36. Lorand Levente Kis, Christian Sacarea, Diana Sotropa, Visualizing Conceptual Structures Using FCA Tools Bundle, International Conference on Conceptual Structures ICCS 2018, pp. 193-196.
  37. Molnar Andrea, Christian Sacarea, Viorica Varga, Conceptual Graphs Based Modeling of Semi-structured Data, International Conference on Conceptual Structures ICCS 2018, pp. 167-175.
  38. Cristea Diana, Christian Sacarea, Diana Sotropa, Using Analogical Complexes to Improve Human Reasoning and Decision Making in Electronic Health Record Systems, International Conference on Conceptual Structures ICCS 2018, pp. 9-23.

Books

  1. Sacarea Christian, Towards a Theory of Contextual Topology, Shaker Verlag, Aachen, 2000, P.144.
  2. Crivei Septimiu, Marcus Andrei Dorin, Sacarea Christian, Szanto Csaba Lehel,  Computational algebra with applications to coding theory and cryptography, Editura Fundatiei pentru Studii Europene, Cluj-Napoca , 2006, P. 198.
  3. Sacarea Christian, Algebra Liniara si Aplicatii, EDITURA EFES, CLUJ-NAPOCA, 2007, P. 173.
  4. Epaminondas Kapetanios, Christian Sacarea, Doina Tatar, Natural Language Processing, Semantic Aspects, CRC Press, Taylor&Francis, 2013.

Proceedings Editor

  1. Simion Breaz, Christian Sacarea, Proceedings of the Algebra Symposium, Cluj-Napoca, 2006.
  2. C. Glodeanu, M. Kaytoue, C. Sacarea, Proceedings of the 12th International Conference on Formal Concept Analysis, LNAI8478, Springer, 2014.
  3. J. Baixeries, C. Sacarea, M. Ojeda-Aciego, Proceedings of the 13th International Conference on Formal Concept Analysis, LNAI9113, Springer, 2015.
  4. J. Baixeries, C. Sacarea, M. Ojeda-Aciego, Proceedings of the International Workshop on Formal Concept Analysis and Applications FCA&A, Universidad de Malaga (Dept. Matematica Aplicada), Spain, ISBN 978-84-606-7410-8, 2015.