TU Wien Informatics

Rudolf Freund

Ao.Univ.Prof. Dipl.-Ing. Mag.rer.nat. Dr.techn.

Research Focus

Research Areas

  • Infinite Words, Array Grammars, Formal Languages, Graph Grammars, Neural Nets, Molecular Computing, Membrane Computing (P Systems)
Rudolf Freund

Roles

  • Associate Professor
    Theory and Logic, E192-05
  • Curriculum Coordinator
    Bachelor Medical Informatics
  • Curriculum Coordinator
    Master Medical Informatics
  • Faculty Council
    Substitute Member
  • Curriculum Commission for Informatics
    Substitute Member

2018

2017

2016

2015

2014

  • Small P Systems Defining Non-semilinear Sets / R. Freund, A. Alhazov / in: "Automata, Computation, Universality", A. Adamatzky (ed.); Springer International Publishing, Heidelberg, 2014, ISBN: 978-3-319-09039-9, 183 - 217
  • Generating and accepting P systems with minimal left and right insertion and deletion / R. Freund, Y. Rogozhin, S. Verlan / in: "Natural Computing - An international Journal", J. Ferrandez et al. (ed.); Springer, 2014, ISSN: 1567-7818, 257 - 268
  • Array Grammars and Automata on Cayley Grids / R. Freund, M. Oswald / Journal of Automata, Languages and Combinatorics, 19 (2014), 1-4; 67 - 80
  • Antimatter as a Frontier of Tractability in Membrane Computing / R. Freund, A. Alhazov et al. / Fundamenta Informaticae, 134 (2014), 1-2; 83 - 96
  • Length P Systems / R. Freund, A. Alhazov et al. / Fundamenta Informaticae, 134 (2014), 1-2; 17 - 37
  • Report on UCNC 2014 / R. Freund, T. Hava et al. / Bulletin of the EATCS, 114 (2014)
  • Variants of P Automata / R. Freund / Keynote Lecture: Tenth Conference on Computability in Europe, CiE 2014 New Computing Paradigms - Workshop, Budapest; 2014-06-23 - 2014-06-27; in: "New Computing Paradigms - Workshop", (2014), ISBN: 978-3-319-08019-2; 7 pages
  • P Systems with Matter and Anti-Matter / R. Freund, Gh. Paun, A. Alhazov et al. / Talk: Tenth Conference on Computability in Europe, CiE 2014 New Computing Paradigms - Workshop, Budapest; 2014-06-23 - 2014-06-27; in: "Tenth Conference on Computability in Europe, CiE 2014 Language, Life, Limits", A. Beckmann et al. (ed.); (2014), 1 pages
  • Red-Green P Automata / R. Freund et al. / Talk: CMC-14, Prag; 2014-08-20 - 2014-08-22; in: "Membrane Computing - 15th International Conference, CMC 2014", M. Gheorghe et al. (ed.); 8961 (2014), ISSN: 0302-9743; 139 - 157
  • Promoters and Inhibitors in Purely Catalytic {P} Systems / R. Freund, S. Verlan, A. Alhazov / Talk: CMC15, Prag; 2014-08-20 - 2014-08-22; in: "Membrane Computing - 15th International Conference, CMC 2014", M. Gheorghe et al. (ed.); 8961 (2014), ISBN: 978-3-319-14370-5; 126 - 138
  • P Systems with Toxic Objects / R. Freund, A. Alhazov / Talk: CMC15, Prag; 2014-08-20 - 2014-08-22; in: "Membrane Computing - 15th International Conference, CMC 2014", M. Gheorghe et al. (ed.); 8961 (2014), ISBN: 978-3-319-14370-5; 99 - 125
  • Priorities, Promoters and Inhibitors in Deterministic Non-cooperative P Systems / R. Freund, A. Alhazov / Talk: CMC15, Prag; 2014-08-20 - 2014-08-22; in: "Membrane Computing - 15th International Conference, CMC 2014", M. Gheorghe et al. (ed.); 8961 (2014), ISBN: 978-3-319-14370-5; 86 - 98
  • P Systems with Anti-Matter / R. Freund, A. Alhazov et al. / Talk: CMC 14, Prag; 2014-08-20 - 2014-08-22; in: "Membrane Computing - 15th International Conference, CMC 2014", M. Gheorghe, G. Rozenberg et al. (ed.); (2014), ISBN: 978-3-319-14370-5; 66 - 85
  • Flattening in (tissue) P systems / R. Freund, S. Verlan et al. / Talk: CMC 14, Chisinau; 2013-08-20 - 2013-08-23; in: "Membrane Computing. 14th international conference, CMC 2013", A. Alhazov (ed.); LNCS/Springer, 8340 (2014), ISBN: 978-3-642-54239-8; 173 - 188
  • P Systems with Anti-Matter / R. Freund, Gh. Paun / Talk: 12th Brainstorming Week on Membrane Computing, Sevilla; 2014-02-03 - 2014-02-07; in: "12th Brainstorming Week on membrane Computing - Proceedings", Gh. Paun et al. (ed.); Fenix Editora, (2014), ISBN: 978-84-940056-4-0; 169 - 183
  • Red-Green P Automata / R. Freund, E. Csuhaj-Varjú et al. / Talk: 12th Brainstorming Week on Membrane Computing, Sevilla; 2014-02-03 - 2014-02-07; in: "12th Brainstorming Week on membrane Computing - Proceedings", Fenix Editora, (2014), ISBN: 978-84-940056-4-0; 73 - 79
  • Length P Systems with a Lone Traveler / R. Freund, A. Alhazov et al. / Talk: 12th Brainstorming Week on Membrane Computing, Sevilla; 2014-02-03 - 2014-02-07; in: "12th Brainstorming Week on membrane Computing - Proceedings", Gh. Paun et al. (ed.); Fenix Editora, (2014), ISBN: 978-84-940056-4-0; 37 - 49
  • Priorities, Promoters and Inhibitors in Deterministic Non-Cooperative P Systems / R. Freund, A. Alhazov / Talk: 12th Brainstorming Week on Membrane Computing, Sevilla; 2014-02-03 - 2014-02-07; in: "12th Brainstorming Week on membrane Computing - Proceedings", Gh. Paun et al. (ed.); Fenix Editora, (2014), ISBN: 978-84-940056-4-0; 27 - 37
  • Matter and Anti-Matter in Membrane Systems / R. Freund et al. / Talk: 12th Brainstorming Week on Membrane Computing, Sevilla; 2014-02-03 - 2014-02-07; in: "12th Brainstorming Week on membrane Computing - Proceedings", Gh. Paun et al. (ed.); Fenix Editora, (2014), ISBN: 978-84-940056-4-0; 1 - 27
  • P Systems with Anti-Matter / R. Freund, A. Alhazov et al. / Talk: Theorietag Automaten und Formale Sprachen, Caputh; 2014-09-23 - 2014-09-25; in: "24.Theorietag "Automaten und Formale Sprachen"", H. Bordihn et al. (ed.); Universität Potsdam, (2014), ISSN: 0946-7580; 19 - 23
  • Five Nodes Are Sufficient for Hybrid Networks of Evolutionary Processors to Be Computationally Complete / R. Freund, A. Alhazov, Y. Rogozhin / Talk: UCNC, London; 2014-07-14 - 2014-07-18; in: "Unconventional Computation and Natural Computation - 13th International Conference, UCNC 2014, London, ON, Canada, July 14-18, 2014, Proc", O.H. Ibarra et al. (ed.); LNCS/Springer, 8553 (2014), ISBN: 978-3-319-08122-9; 1 - 13
  • Cooperating Distributed Grammar Systems of Finite Index Working in Hybrid Modes / R. Freund, H. Fernau, M Holzer / Talk: 14th International Conference on Automata and Formal Languages, AFL 2014, Hungary, May 27-29, 2014., Szeged; 2014-05-27 - 2014-05-29; in: "Proceedings 14th International Conference on Automata and Formal Languages, AFL 2014, Szeged, Hungary, May 27-29, 2014.", Z. Esik et al. (ed.); EPTCS, 151 (2014), ISSN: 2075-2180; 246 - 260

2013

2012

2011

2010

2009

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2007

2006

2005

2004

  • Asynchronous P Systems on Arrays and Strings / R. Freund / Talk: International Conference on Developments in Language Theory (DLT), Auckland, New Zealand; 2004-12-13 - 2004-12-17
  • Tissue P Systems Simulating Grammar Systems / R. Freund, M. Oswald / Talk: Molecular Computing, Leiden, the Netherlands; 2004-11-22 - 2004-11-26
  • P Systems Working in the Asynchronous and the Sequential Mode / R. Freund / Talk: Molecular Computing, Leiden, the Netherlands; 2004-11-22 - 2004-11-26
  • Sequential P Systems with Unit Rules and Energy Assigned to Membranes / R. Freund, A. Leporati, M. Oswald, C. Zandron / Talk: MCU (International Conference Machines, Computations and Universality), St. Petersburg, Russia; 2004-09-21 - 2004-09-26
  • Computational Completeness of P Systems with Active Membranes and Two Polarizations / A. Alhazov, R. Freund, Gh. Paun / Talk: MCU (International Conference Machines, Computations and Universality), St. Petersburg, Russia; 2004-09-21 - 2004-09-26
  • P Systems with Antiport Rules for Evolution Rules / R. Freund, M. Oswald / Talk: WSEAS Internation Conference on Evolutionary Computation, Udine, Italy; 2004-03-25 - 2004-03-27
  • Splicing Test Tube Systems and Their Relation to Splicing Membrane Systems / F. Freund, R. Freund, M. Oswald / in: "Aspects of Molecular Computing. Essays Dedicated to Tom Head on the Occasion of His 70th Birthday", N. Jonoska, Gh. Paun, G. Rozenberg (ed.); Springer, Heidelberg, 2004, ISBN: 3-540-20781-3, 139 - 151
  • P Systems with Conditional Communication Rules Assigned to Membranes / R. Freund, M. Oswald / Journal of Automata, Languages and Combinatorics, 9 (2004), 4; 387 - 397
  • P Systems with Antiport Rules for Evolution Rules / R. Freund, M. Oswald / WSEAS Transactions on Systems, 2 (2004), 3; 866 - 873
  • P Automata with Membrane Channels / R. Freund, M. Oswald / Artificial Life and Robotics, 8 (2004), 2; 186 - 189
  • P Systems with Local Graph Productions / R. Freund, M. Oswald / New Generation Computing, 22 (2004), 365 - 375
  • From Regulated Rewriting to Computing with Membranes: collapsing Hierarchies / R. Freund, C. Martin-Vide, Gh. Paun / Theoretical Computer Science, 312 (2004), 143 - 188
  • P Systems Working in the Sequential Mode on Arrays and Strings / R. Freund / in: "Developments in Language Theory, 8th International Conference, DLT 2004, Auckland, New Zealand, December 13-17, Proceedings", C. Calude, E. Calude, M. Dinneen (ed.); Springer LNCS 3340, Heidelberg, 2004, ISBN: 3-540-24014-4, 188 - 199
  • P Systems with Active Membranes and without Polarizations / R. Freund, A. Paun / in: "Second Brainstorming Week on Membrane Computing", Gh. Paun, A. Riscos-Núñez, A. Romero-Jiménez, F. Sancho-Caparrini (ed.); Universidad de Sevilla, Sevilla, 2004, 193 - 205
  • Tissue-like P Systems with Channel-States / R. Freund, Gh. Paun, M. Pérez-Jiménez / in: "Second Brainstorming Week on Membrane Computing", Gh. Paun, A. Riscos-Núñez, A. Romero-Jiménez, F. Sancho-Caparrini (ed.); Universidad de Sevilla, Sevilla, 2004, 206 - 223
  • P Systems with Antiport Rules for Evolution Rules / R. Freund, M. Oswald / in: "Second Brainstorming Week on Membrane Computing", Gh. Paun, A. Riscos-Núñez, A. Romero-Jiménez, F. Sancho-Caparrini (ed.); Universidad de Sevilla, Sevilla, 2004, 183 - 192
  • Sequential P Systems with Unit Rules and Energy Assigned to Membranes / R. Freund, A. Leporati, M. Oswald, C. Zandron / in: "Second Brainstorming Week on Membrane Computing", Gh. Paun, A. Riscos-Núñez, A. Romero-Jiménez, F. Sancho-Caparrini (ed.); Universidad de Sevilla, Sevilla, 2004, 168 - 182
  • P Systems with Active Membranes and Two Polarizations / A. Alhazov, R. Freund, Gh. Paun / in: "Second Brainstorming Week on Membrane Computing", Gh. Paun, A. Riscos-Núñez, A. Romero-Jiménez, F. Sancho-Caparrini (ed.); Universidad de Sevilla, Sevilla, 2004, 20 - 37
  • P Systems with Cutting/Recombination Rules Assigned to Membranes / F. Freund, R. Freund, M. Oswald, M. Margenstern, Y. Rogozhin, S. Verlan / in: "Membrane Computing. International Workshop, WMC 2003, Tarragona, Spain, July 17-22, 2003", C. Martin-Vide, G. Mauri, Gh. Paun, G. Rozenberg, A. Salomaa (ed.); Springer, Heidelberg, 2004, ISBN: 3-540-20895-x, 191 - 202
  • ω-P automata with Communication Rules / R. Freund, M. Oswald, L. Staiger / in: "Membrane Computing. International Workshop WMC 2003, Tarragona, Spain, July 17-22, 2003 ", C. Martin-Vide, G. Mauri, Gh. Paun, G. Rozenberg, A. Salomaa (ed.); Springer, Heidelberg, 2004, ISBN: 3-540-20895-x, 203 - 217
  • Modelling Grammar Systems by Tissue P Systems Working in the Sequential Mode / R. Freund, M. Oswald / in: "Proceedings of Grammar Systems Week 2004, Budapest, Hungary, July 5-9, 2004", E. Csuhaj-Varjú, Gy. Vaszil (ed.); MTA Sztaki, 2004, 179 - 199
  • P Systems Generating Trees / R. Freund, M. Oswald, A. Paun / Talk: Workshop on Membrane Computing, Milano, Italy; 2004-06-14 - 2004-06-16; in: "Pre-proceedings of the Fifth Workshop on Membrane Computing, Milano - Italy, June 2004 (WMC5)", G. Mauri, Gh. Paun, C. Zandron (ed.); (2004), 221 - 232
  • Extended Gemmating P Systems are Computationally Complete with Four Membranes / R. Freund, M. Oswald, A. Paun / Talk: DCFS (Descriptional Complexity of Formal Systems), London, Ontario, Canada; 2004-07-26 - 2004-07-28; in: "Pre-proceedings DCFS 2004, Western University, London, Ontario, Canada, 2004", L. Ilie, D. Wotschke (ed.); (2004), 24 - 33
  • Implementation of Catalytic P Systems / A. Binder, R. Freund, G. Lojka, M. Oswald / Talk: CIAA (Conference on Implementation and Application of Automata), Kingston, Ontario, Canada; 2004-07-22 - 2004-07-24; in: "Pre-proceedings CIAA 2004, Queen's University, Kingston, Ontario, Canada, 2004", M. Domaratzky, A. Okhotin, K. Salomaa, S. Yu (ed.); (2004), 24 - 33
  • Implementierung von katalytischen P-Systemen / A. Binder, R. Freund, G. Lojka, M. Oswald / Talk: Theorietag Automaten und Formale Sprachen, Caputh bei Potsdam, Germany; 2004-09-27 - 2004-09-30; in: "Workshop Formale Methoden der Linguistik und 14. Theorietag Automaten und Formale Sprachen. Preprint 2/2004, Institut für Informatik, Universität Potsdam, 2004.", S. Bensch, O. Boldt, H. Bordihn, H. Jürgensen (ed.); (2004), 49 - 53
  • Modelling Artificial Life by Attributed Eco-array Systems / A. Binder, R. Freund, M. Oswald / Talk: Intern. Symp. on Artificial Life and Robotics (AROB), Beppu, Oita, JAPAN; 2004-01-28 - 2004-01-30; in: "Proceedings of the ninth International Symposium on Artificial Life and Robotics (AROB 9th '04)", M. Sugisaka, H. Tanaka (ed.); (2004), ISBN: 4-9900462-4-2; 45 - 48
  • Modellierung von Grammatiksystemen durch P-Systeme / R. Freund, M. Oswald / Talk: Theorietag Automaten und Formale Sprachen, Caputh bei Potsdam, Germany; 2004-09-27 - 2004-09-30; in: "Workshop Formale Methoden der Linguistik und 14. Theorietag Automaten und Formale Sprachen. Preprint 2/2004, Institut für Informatik, Universität Potsdam, 2004.", S. Bensch, O. Boldt, H. Bordihn, H. Jürgensen (ed.); (2004), 63 - 67
  • Cellular Automata and Parallel Array Systems / R. Freund, F. Tafill / Talk: Workshop on Tilings and Cellular Automata (WTCA), Auckland, New Zealand; 2004-12-12; in: "Proceedings of the International Workshop on Tilings and Cellular Automata, 2004", M. Margenstern (ed.); CDMTCS Research Report Series, 253 (2004), 1 - 14
  • P-Systeme im sequentiellen Modus / R. Freund / Talk: Theorietag Automaten und Formale Sprachen, Caputh bei Potsdam, Germany; 2004-09-27 - 2004-09-30; in: "Workshop Formale Methoden der Linguistik und 14. Theorietag Automaten und Formale Sprachen. Preprint 2/2004, Institut für Informatik, Universität Potsdam, 2004", S. Bensch, O. Boldt, H. Bordihn, H. Jürgensen (ed.); (2004), 57 - 61
  • Modelling Grammar Systems by Tissue P Systems / R. Freund, M. Oswald / Talk: Grammar Systems Week, International Workshop, Budapest; 2004-07-05 - 2004-07-09; in: "Prel. Proc. of Grammar Systems Week 2004, MTA Sztaki, Budapest 2004", E. Csuhaj-Varjú, Gy. Vaszil (ed.); (2004), 162 - 179
  • On the Efficiency of P Systems with Active Membranes and Two Polarizations. / A. Alhazov, R. Freund / Talk: Workshop on Membrane Computing, Milano, Italy; 2004-06-14 - 2004-06-16; in: " Pre-proceedings of the Fifth Workshop on Membrane Computing, Milano - Italy, June 2004 (WMC5)", G. Mauri, Gh. Paun, C. Zandron (ed.); (2004), 81 - 94
  • Asynchronous P Systems / R. Freund / Talk: Workshop on Membrane Computing, Milano, Italy (invited); 2004-06-14 - 2004-06-16; in: " Pre-proceedings of the Fifth Workshop on Membrane Computing, Milano - Italy, June 2004 (WMC5)", G. Mauri, Gh. Paun, C. Zandron (ed.); (2004), 12 - 28

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2003

  • P Automata / PhD Thesis by M. Oswald / Supervisor, Reviewer: R. Freund; Institut für Computersprachen, 185, 2003