Publications by  Ralf Der

Most recent: Work on information driven self-organization

  • N. Ay, R. Der, M. Prokopenko: Information driven self-organization: The dynamical systems approach to autonomous robot behavior. Theory in Biosciences, to appear (2010).
  • K. Zahedi, N. Ay, R. Der: Higher coordination with less control - A result of information maximisation in the sensori-motor loop. Adaptive Behavior, accepted (2010).
  • Nihat Ay, Nils Bertschinger, Ralf Der, Frank Güttler, Eckehard Olbrich: Predictive information and explorative behavior of autonomous robots. European Physical Journal B - Condensed Matter and Complex Systems, 63, pp. 329 - 339, 2008

    Work on self-organization of robot behavior see http://robot.informatik.uni-leipzig.de/videos/

      Journal Papers

    1. R. Der, R. Haberlandt, Quantum Statistical Equations of Motion for Non-Equilibrium Processes, Phys. Lett. 49 A (1974) 15
    2. R. Der, O. Gebhardt, R. Haberlandt, R- Matrix Theory of Atom-Diatom Collisions, Chem. Phys. Lett. 27 (1974) 107-10
    3. R. Der, R. Haberlandt, Linked Cluster Expansions in the Equations of Motion Method I, Physica 79 A (1975) 597-616
    4. R. Der, R. Haberlandt, Linked Cluster Expansions in the Equations of Motion Method II, Physica 86 A (1977) 25
    5. R. Der, O. Gebhardt, R. Haberlandt, Untersuchungen der Reaktion X2+X ---> X+X2 im Rahmen der R-Matrix Theorie, Isotopenpraxis 12 (1976) 194
    6. R. Der, On the Memory Functional in Nonlinear Nonequilibrium Statistical Mechanics, Phys. Lett. 59 A (1977) 419-20
    7. R. Der, Renormalized Perturbation Expansion in Kinetic Theory, Ann. d. Physik 34 (1977) 298-308
    8. H.-J. Czerwon, R. Der, R. Haberlandt, Quantum Statistical Theory of Chemical Reactions I, Mol. Phys. 33 (1977) 1743-56
    9. R. Der, R. Haberlandt, H.-J- Czerwon, Quantum Statistical Theory of Chemical Reactions II, Mol. Phys. 35 (1978) 1609-22
    10. R. Der, D. Hinneburg, M. Nagel, A Program to Calculate Internal Conversion Coefficients Including Higher-Order Corrections for all Atomic Shells; Comp. Phys. Comm. 18 (1979) 401-10
    11. Hartmann,E.; Der, R.; Nagel, M.; Xalpha - S- W Calculation of the Chemically Induced Decay Constant Variation of Tc- 99m in the Tetrahedral Oxy-Complex Ion and the Octahedral Halogen-Complex Ions. Zeitschr. f. Physik A (Atoms and Nuclei) 290 (1970) 349-53
    12. G. Röpke, R. Der, The Influence of Two-Particle States (Excitons) on the Dielectric Function of the Electron Hole Plasma, Phys. Stat. Sol. (b) 92 (1979) 501-10
    13. R. Der, H.-J. Czerwon, A. Merkel, On the Influence of Spatial Correlations on The Rate of Chemical Reactions, Chem. Phys. 53 (1980) 427-35
    14. R. Der, R. Haberlandt, A. Merkel, On the Influence of Spatial Correlations on the Rate of Chemical Reactions II, Chem. Phys. 53 (1980) 437-42
    15. R. Der, S. Fritzsche, R. Haberlandt, Diagram Expansions in Nonequilibrium Statistical Mechanics, Ann. d. Phys. 39 (1982) 430-44
    16. R. Der, S. Fritzsche, R. Haberlandt, On the Generalization of the Enskog Equation, Phys. Lett. 92A (1982) 633
    17. R. Der, Exact Local in Time Evolution Equations for Macroobservables, Phys.Lett. 92A (1982) 68
    18. R. Der, G. Röpke, Influence of Infinitesimal Source Terms in the Liouville Equation on Macroscopic Evolution Equations, Phys. Lett. 95A (1983) 347
    19. H.J. Czerwon, R. Der, Rate Equations in Third Order Perturbation Theory, Khim. Fiz. 3 (1984) 1427
    20. R. Der, Retarded and Instantaneous Evolution Equations for Macroobsevables in Nonequilibrium Statistical Mechanics, Physica 132A (1985) 47-73
    21. R. Der, On the Retarded Solution of the Liouville Equation and the Definition of Entropy in Kinetic Theory, Physica 132A (1985) 74-93
    22. R. Der, C. Webers, Folded Diagrams,Physica 132A (1985) 94-116
    23. R. Der, S. Fritzsche, Dynamical Correlations and Long Time Tails in Chemical Reactions, Chem. Phys. Lett. 121 (1985) 177-81
    24. E. Hartmann, R. Der, X-Ray Fluorescence Yields for Light Emitter Atoms. J. Phys. B: At. Mol. Phys.19 (1986) 1899
    25. R. Der, The Time Local View of Nonequilibrium Statistical Mechanics I, J. Stat. Phys. 46 (1987) 349-390
    26. R. Der, The Time Local View of Nonequilibrium Statistical Mechanics II, J. Stat. Phys. 46 (1987) 391-425
    27. E. Hartmann, R. Der, X-Ray Flourescence Yields for Light Emitter Atoms: Fluorine; J. Phys. B 21 (1988) 1751-60
    28. R. Der, Systems under Colored Noise, Physica A 154 (1989) 421-451
    29. R. Der, W. Schumacher, Renormalized Operator Cumulant Expansions for Colored Noise Systems, Phys. Lett. A 134 (1989) 413-415
    30. R. Der, On the Derivation of the Fokker-Planck Equation for Colored Noise Processes, Phys. Lett. A 135 (1989) 430
    31. R. Der, W. Schumacher, Colored Noise: A Case Study, Physica A 165 (1990) 207-233.
    32. R. Der, The Langevin Method in the Dynamics of Learning, J. Phys. A: Math. Gen. 23 (1990) L763-6
    33. R. Der, W. Schumacher, Grundvorstellungen zur Theorie der Hochtemperatur-Supraleitung. Die Rolle des Isotopieeffektes, Isotopenpraxis 27(1991) 5-11.
    34. R. Der, W. Schumacher, Spin Relaxation. The Renormalized Operator Cumulant Approch, Zeitschr. f. Physik B 83 (1991) 295-302
    35. R. Der, V.S. Dotsenko, B. Tirozzi, Modified Pseudo-Inverse Neural Networks Storing Correlated Patterns, J. Phys. A: Math. Gen. 25, 1992, 2843-2857
    36. Der, R.; Englisch, H.; Funke, M.; Herrmann, M.: Time Series Prediction Using Hierarchical Self- Organized Feature Maps. Neural Network World, 6, 699-704 (1993)
    37. Der, R.; Herrmann, M.: Critical Phenomena in Self-Organizing Feature Maps: Ginzburg-Landau Approach. Phys. Rev. E 49 5840 - 48 (1994)
    38. Kovacs, S.; Toth, J. G.; Der, R.; Lörincz, A.: Output sensitive discretisation for genetic algorithms with migration, Neural Networks World, 1/96, 101-107 (1996)
    39. Bauer, H.-U.; Der, R.; Herrmann, M.: Controling the magnification factor of self-organizing feature maps. Neural Computation 8, 757-771 (1996)
    40. Villmann, Th.; Der, R.; Herrmann, M.; Martinetz, Th.: Toplogy Preservation in Self-Organizing Feature Maps: Exact Definition and Precise Measurement, IEEE Transactions on Neural Networks 8 (2) 256 - 266, 1997
    41. Funke, M., Herrmann, M., Der, R.: Controlling low dimensional chaos: Determination and stabilization of unstable periodic orbits by Kohonen neural nets. Int. Journal of Adaptive Control and Signal Processing 11/6, 489 - 499 (1997)
    42. Der, R.; Herrmann, M.; Villmann, Th.: Time Behaviour of Topological Ordering in Self-Organizing Feature Mapping, Biolog. Cybernetics 77, 419-427 (1997)
    43. R. Der, D. Smyth.: Local online learning of coherent information (107K). Neural Networks 11, 1998, 909 - 925.
    44. R. Der: Self-organized acqusition of situated behavior. Theory Biosci. (2001) 120: 1 - 9. (gzipped file here)
    45. Pullwitt, D.  Der, R.:  Integrating contextual information into text document clustering with self-organizing maps. In N. Allison, H. Yin, L. Allinson, & J. Slack (Eds.), Advances in self-organizing maps, Proceedings of WSOM01, Workshop on self-organising maps (p. 54-60). Springer (2001).

    46. Der R, Herrmann M, Holicki M: Self-organization in sensor-motor loops by the homeokinetic principle. Verhandl. der Dt. Physik. Gesellsch. 1/2002, 510

    47. Der R., Hesse F., Liebscher R.: Contingent robot behavior from self-referential dynamical systems. Autonomous robots submitted. 

    48. Der R., Hesse F., Martius, G.: Rocking stamper and jumping snake from a dynamical system approach to artificial life. J. Adaptive Behavior, 14(2):105-115, 2006

    49. Nihat Ay, Nils Bertschinger, Ralf Der, Frank Güttler, Eckehard Olbrich: Predictive information and explorative behavior of autonomous robots. European Physical Journal B - Condensed Matter and Complex Systems, 63, pp. 329 - 339, 2008

    50. K. Zahedi, N. Ay, R. Der: Higher coordination with less control - A result of information maximisation in the sensori-motor loop. Adaptive Behavior, accepted (2010).

    51. N. Ay, R. Der, M. Prokopenko: Information driven self-organization: The dynamical systems approach to autonomous robot behavior. Theory in Biosciences, to appear (2010).

      52.  Book contributions

    52. Der, R.; Villmann, Th.: Dynamics of Self-Organized Feature Mapping. In: New Trends in Neural Computation (Lecture Notes in Computer Science 686 , Eds.: J. Mira, J. Cabestany A. Prieto) Springer-Verlag Berlin-Heidelberg-New York-Tokyo, 1993, 312-315
    53. Der, R.: Über den heuristischen Wert physikalischer Modelle für die ökonomische Theorie, in: Zwischen Entropiewachstum und Selbstorganisation - Perspektiven einer ökologischen Ökonomie, J. Beckenbach/H. Diefenbacher (Hrsg.), Metropolis - Verlag Marburg, 1994
    54. Villmann, T., Der, R., Herrmann, M., Martinetz, T.: Toplogy preservation in self-organizing feature maps: General definition and efficient measurement. In: Lecture Notes in Computer Science, Springer 1994
    55. Der, R.; Herrmann, M.: Nonlinear Chaos Control by Neural Networks. in Artificial Neural Networks, Eds. M. Marinaro and P. Morasso, Springer-Verlag, 1227 - 1230, 1994
    56. Villmann, Th.; Der, R.; Martinetz, Th.: A Novel Approach to Measure the Topology Preservation of Feature Maps. In: Artificial Neural Networks, Eds. M. Marinaro and P. Morasso, Springer-Verlag, 298-301, 1994
    57. Villmann, T., Der, R., Herrmann, M., Martinetz, T.: Topolgy preservation in self-organizing feature maps: General definition and effficient measurement. In: Informatik Aktuell - Fuzzy Logik. Ed.: B. Reusch, Springer-Verlag 159 - 166 (1994)
    58. Herrmann, M.; Bauer, H.-U.; Der, R.: The 'Perceptual Magnet Effect': A Mode l Based on Self-Organizing Feature Maps, In: Neural Computation and Psychology, L. S. Smith, P. J.B. Hancock eds. pp. 107 - 166 Springer, London 1994
    59. Der, R.; Balzuweit, G.; Herrmann, M.: Building nonlinear data models with self-organizing feature maps. Lecture Notes in Computer Science 1112: Artificial Neural Networks - ICANN 96, 821 - 826. Springer 1996
    60. Herrmann, M.; Der, R.: Efficient state-space representation by neural maps for reinforcement learning. In: Classification in the information age. W. Gaul, H. Locarek-Junge (Eds.) p. 302 - 309, Special issue of Studies in classification, data analysis, and knowledge organisation. Springer 1999.
    61. Der, R. : Herrmann, M.: Second-order learning in self-organizing maps . In:  Kohonen maps; E. Oja, S. Kaski eds. Springer 1999.
    62. M. Herrmann, M. Holizky, R. Der: On Ashby's homeostat: A formal model of adaptive regulation. In: From Animals to Animats 8. S. Schaal et al. eds. ps. 324 - 333.  MIT Press  2004.

      63. Further recent publications

    63. Der, R.: Noise and Finite Size Effects in the Dynamics of Learning. Proceedings International Symposium on Neural Networks and Neural Computing NEURONET'90, Prague, September 10-14, 1990, 74-75
    64. Der, R.: Linear Response Theory of Synaptic Plasticity, Wiss. Zeitschrift TH Ilmenau 37 (1991) 37-41.
    65. Der, R.; Englisch, H.: Forschungsgruppe Neuroinformatik an der Universität Leipzig. N3 Nachrichten Neuronale Netze, Sonderausgabe: Neuronale Netze-Forschung in den neuen Bundesländern, Januar 1991, 7-8
    66. Der, R.; Herrmann, M.; Villmann, Th.: Spontaneous Symmetry-Breaking Effects in Self-Organized Feature Maps: A Ginzburg-Landau Approach. Proceedings WCNN'93 (World Congress on Neural Networks), Oregon, 1993, Band II, 461-464
    67. Der, R.: Physikalische Modelle und Theoretische Ökonomie, Schriftenreihe des Institutes für ökologisches Wirtschaften, Berlin 1992
    68. Der, R; Nonstationary Learning in Simple Neural Nets, Preprint Universität Leipzig 1992
    69. Herrmann, M., Der, R.: Attentional control of feature maps. Preprint 6/93, Universität Leipzig 1993
    70. Der, R.; Herrmann, M.: Nonlinear Chaos Control by Neural Networks. In Proceedings International Conference on Artificial Neural Networks - ICANN'94, 1994
    71. Der, R.; Martinetz, Th.; Villmann, Th.: A Novel Approach to Measure the Topology Preservation of Feature Maps. In: Proceedings International Conference on Artificial Neural Networks - ICANN'94, 1994
    72. Der, R.; Herrmann, M.: Q-Learning Chaos Controller. In: Proceedings IEEE Int. Conf. Computational Intelligence, Vol. IV 2472 - 2475, Orlando (USA) June 1994
    73. Villmann, Th.; Der, R.; Martinetz, Th.: A New Quantitative Measure of Topology Preservation In Kohonen's Feature Maps. In: Proceedings IEEE Int. Conf. Computational Intelligence, Vol. II 645 - 648, Orlando (USA) June 1994
    74. Herrmann, M.; Bauer, H.-U.; Der, R.: The 'Perceptual Magnet Effect': A Model Based on Self-Organizing Feature Maps, Proceedings 3rd Neural Computation and Psychology Workshop, Stirling, September 1994
    75. Der,R.; Englisch, H.; Funke, M.; Herrmann, M.: Time series prediction using hierarchichal self-organizing feature maps. In: Proceedings 4th International Workshop on Parallel Applications in Statistics and Economics, Ascona Nov. 93
    76. Der,R.; Englisch, H.;Funke, M.; Herrmann, M.: Prediction of financial time Series using hierarchical self-organizing feature maps. In: Proceedings Workshop Neural Networks in the Capital Markets, London Nov. 1993, A. N. Refenes, ed. (1993)
    77. Der, R.; Herrmann, M.: Explorations in Q-learning I: Improving speed, stability, and accurracy of Kohonen-based Q-learners. Preprint 24/94 Universtiät Leipzig (1994)
    78. Herrmann, M.; Der, R.: Efficient Q-Learning by division of labour. Proc. International Conference on Artificial Neural Networks - ICANN95, Vol. II, 129 - 134, Paris 1995
    79. Bauer, H.-U.; Der, R.; Herrmann, M.: Optimal vector quantization in self-organizing feature maps. Neural Information Processing Systems (NIPS95), submitted 1995
    80. Der, R.; Herrmann, M.: Efficient Q-learning by optimized categorization. Forschungsbericht Nr. 580 der Univ. Dortmund - Fachbereich Informatik, Dortmund, August 1995
    81. H.-U. Bauer, R. Der, M. Herrmann: Optimal Magnification Factors in Self-Organizing Feature Maps. In: Proceedings of the International Conference on Artificial Neural Networks - ICANN'95, Vol. I, 75 - 80, Paris 1995
    82. Der, R.; Herrmann, M.: Self-adjusting reinforcement learning . Proc. Nonlinear Theory and Applications - NOLTA 96. p. 441-444, (Kochi, Japan, Oct. 7-9, 1996)
    83. Der, R.;Balzuweit, G.; Herrmann, M.: Constructing principal manifolds in sparse data sets by self-organizing maps with self-regulating neighborhood width. Proc. ICNN'96 Washington, IEEE, 480 - 483(1996)
    84. Balzuweit, G.; Welk, M.; Der, R.: Nonlinear partial least squares regression. In: Solving engineering problems with neural networks, S. Kallio, D. Tsaptsinos eds. Proceedings EANN'96 (1996)
    85. Herrmann, M.; Der, R.;Balzuweit, G.:Hierarchichal feature maps and nonlinear component analysis. Proc. ICNN'96 Washington, IEEE, 1390 - 1394 (1996)
    86. Balzuweit, G.; Der, R.; Herrmann, M.; Welk, M.: An algorithm for generalized principal curves with adaptive topology in complex data sets. Technical Report Institut für Informatik 97-03
    87. Der, R.; Steinmetz, U.: Wavelet analysis of EEG signals as a tool for the investigation of the time architecture of cognitive processes Technical Report Institut für Informatik 1997 (4 MB gzipped postscript file) oder hier: Postscript file (17.7 MB)
    88. R. Der, O. Lummer, T. List: Incremental nonlinear dynamic data reconciliation. IfI Report 3/98. gzipped Postscript file (328 kB) or Postscript file (2.11 MB)
    89. R. Der, U. Steinmetz, G. Balzuweit G. Schüürmann: Nonlinear principal component analysis. IfI Report 4/98. gzipped Postscript file (533 kB) or Postscript file (1.91 MB)
    90. R. Der, U. Steinmetz, F. Pasemann: Homeokinesis. Preprint MPI - Mathematics in the Sciences (1999).
    91. R. Der, U. Steinmetz, F. Pasemann: Homeokinesis - A new principle to back up evolution with learning. In Concurrent Systems Engineering Series Vol. 55: Computational Intelligence for Modelling, Control, and Automation. M. Mohammadian (Ed.) pp. 43 - 47. IOS Press (1999)
    92.  Emergent robot behavior from the principle of homeokinesis   In: Experiments with the Mini-Robot Khepera. Proceedings of the 1st International Khepera Workshop'99. A. Löffler, F. Mondada, U. Rückert Eds. Heinz-Nixdorf-Institut Verlagsschriftenreihe.
    93. R. Der: Self-organized robot behavior from the principle of homeokinesis . Proceedings of the SOAVE Workshop, Ilmenau 2000.
    94. R. Der: Self-organized acquisition of situated behavior . EUROBOT'01 submitted.
    95. R. Der, R. Liebscher: True autonomy from self-organized adaptivity. In: Proc. Workshop Biologically Inspired Robotics.  Bristol (2002)
    96. Der R, Herrmann M, Liebscher R (2002):  Homeokinetic approach to autonomous learning in mobile robots. In: R. Dillmann, R. D. Schraft, H. W\"orn: Robotik 2002.    VDI-Berichte 1679, 301-306.

    97. Der, R: . Homeokinesis and the moderation of complexity in neural systems. Technical report, unpublished (2003).

    98. R. Der, F. Hesse, R. Liebscher: Self-organized exploration and automatic sensor integration from the homeokinetic principle. Proc. SOAVE04, Ilmenau 2004
    99. R. Der: Self-organization of robotic forms of life. INISTA 2007 Proceddings. 2007
    100. R. Der, G. Martius, and F. Hesse. Let it roll - emerging sensorimotor coordination in a spherical robot. In L. M. Rocha, L. S. Yaeger, M. A. Bedau, D. Floreano, R. L. Goldstone, and A. Vespignani, editors, Artificial Life X : Proceedings of the Tenth International Conference on the Simulation and Synthesis of Living Systems, pages 192-198. International Society for Artificial Life, MIT Press, August 2006.
    101. R. Der and G. Martius. From motor babbling to purposive actions: Emerging self-exploration in a dynamical systems approach to early robot development. In S. Nolfi, G. Baldassarre, R. Calabretta, J. C. T. Hallam, D. Marocco, J.-A. Meyer, O. Miglino, and D. Parisi, editors, From Animals to Animats 9, 9th International Conference on Simulation of Adaptive Behavior, SAB 2006, Rome, Italy, September 25-29, 2006, Proceedings, volume 4095 of Lecture Notes in Computer Science, pages 406-421. Springer, 2006.
    102. R. Der, F. Hesse, and G. Martius. Learning to feel the physics of a body. In CIMCA '05: Proceedings of the International Conference on Computational Intelligence for Modelling, Control and Automation and International Conference on Intelligent Agents, Web Technologies and Internet Commerce Vol-2 (CIMCA-IAWTIC'06), pages 252-257, Washington, DC, USA, 2005. IEEE Computer Society.
    103. Georg Martius,  J. Michael Herrmann, Ralf Der: Guided Self-organisation for Autonomous Robot Development. ECAL'07
    104. Nihat Ay, Nils Bertschinger, Ralf Der, Frank Güttler, Eckehard Olbrich: Predictive information and explorative behavior of autonomous robots. European Conference on Complex Systems - Dresden October 2007
    105. Ralf Der, Frank Güttler, Nihat Ay: Predictive information and emergent cooperativity in a chain of mobile robots Proceedings ALifeXI, MIT Press, 2008
    106. Ralf Der: Artificial Life from the principle of homeokinesis Proceedings German Workshop on Artificial Life, 2008

     

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