Journal Papers
- R. Der, R. Haberlandt, Quantum Statistical Equations of Motion
for Non-Equilibrium Processes, Phys. Lett. 49 A (1974) 15
- R. Der, O. Gebhardt, R. Haberlandt, R- Matrix Theory of
Atom-Diatom Collisions, Chem. Phys. Lett. 27 (1974) 107-10
- R. Der, R. Haberlandt, Linked Cluster Expansions in the Equations
of Motion Method I, Physica 79 A (1975) 597-616
- R. Der, R. Haberlandt, Linked Cluster Expansions in the Equations
of Motion Method II, Physica 86 A (1977) 25
- R. Der, O. Gebhardt, R. Haberlandt, Untersuchungen der Reaktion
X2+X ---> X+X2 im Rahmen der R-Matrix Theorie, Isotopenpraxis 12
(1976) 194
- R. Der, On the Memory Functional in Nonlinear Nonequilibrium
Statistical Mechanics, Phys. Lett. 59 A (1977) 419-20
- R. Der, Renormalized Perturbation Expansion in Kinetic Theory,
Ann. d. Physik 34 (1977) 298-308
- H.-J. Czerwon, R. Der, R. Haberlandt, Quantum Statistical Theory
of Chemical Reactions I, Mol. Phys. 33 (1977) 1743-56
- R. Der, R. Haberlandt, H.-J- Czerwon, Quantum Statistical Theory
of Chemical Reactions II, Mol. Phys. 35 (1978) 1609-22
- 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
- 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
- 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
- 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
- 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
- R. Der, S. Fritzsche, R. Haberlandt, Diagram Expansions in
Nonequilibrium Statistical Mechanics, Ann. d. Phys. 39 (1982) 430-44
- R. Der, S. Fritzsche, R. Haberlandt, On the Generalization of the
Enskog Equation, Phys. Lett. 92A (1982) 633
- R. Der, Exact Local in Time Evolution Equations for
Macroobservables, Phys.Lett. 92A (1982) 68
- R. Der, G. Röpke, Influence of Infinitesimal Source Terms in the
Liouville Equation on Macroscopic Evolution Equations, Phys. Lett. 95A
(1983) 347
- H.J. Czerwon, R. Der, Rate Equations in Third Order Perturbation
Theory, Khim. Fiz. 3 (1984) 1427
- R. Der, Retarded and Instantaneous Evolution Equations for
Macroobsevables in Nonequilibrium Statistical Mechanics, Physica 132A
(1985) 47-73
- R. Der, On the Retarded Solution of the Liouville Equation and
the Definition of Entropy in Kinetic Theory, Physica 132A (1985) 74-93
- R. Der, C. Webers, Folded Diagrams,Physica 132A (1985) 94-116
- R. Der, S. Fritzsche, Dynamical Correlations and Long Time Tails
in Chemical Reactions, Chem. Phys. Lett. 121 (1985) 177-81
- E. Hartmann, R. Der, X-Ray Fluorescence Yields for Light Emitter
Atoms. J. Phys. B: At. Mol. Phys.19 (1986) 1899
- R. Der, The Time Local View of Nonequilibrium Statistical
Mechanics I, J. Stat. Phys. 46 (1987) 349-390
- R. Der, The Time Local View of Nonequilibrium Statistical
Mechanics II, J. Stat. Phys. 46 (1987) 391-425
- E. Hartmann, R. Der, X-Ray Flourescence Yields for Light Emitter
Atoms: Fluorine; J. Phys. B 21 (1988) 1751-60
- R. Der, Systems under Colored Noise, Physica A 154 (1989) 421-451
- R. Der, W. Schumacher, Renormalized Operator Cumulant Expansions
for Colored Noise Systems, Phys. Lett. A 134 (1989) 413-415
- R. Der, On the Derivation of the Fokker-Planck Equation for
Colored Noise Processes, Phys. Lett. A 135 (1989) 430
- R. Der, W. Schumacher, Colored Noise: A Case Study, Physica A 165
(1990) 207-233.
- R. Der, The Langevin Method in the Dynamics of Learning, J. Phys.
A: Math. Gen. 23 (1990) L763-6
- R. Der, W. Schumacher, Grundvorstellungen zur Theorie der
Hochtemperatur-Supraleitung. Die Rolle des Isotopieeffektes,
Isotopenpraxis 27(1991) 5-11.
- R. Der, W. Schumacher, Spin Relaxation. The Renormalized Operator
Cumulant Approch, Zeitschr. f. Physik B 83 (1991) 295-302
- R. Der, V.S. Dotsenko, B. Tirozzi, Modified Pseudo-Inverse Neural
Networks Storing Correlated Patterns, J. Phys. A: Math. Gen. 25, 1992,
2843-2857
- Der, R.; Englisch, H.; Funke, M.; Herrmann, M.: Time Series
Prediction Using Hierarchical Self- Organized Feature Maps. Neural
Network World, 6, 699-704 (1993)
- Der, R.; Herrmann, M.: Critical Phenomena in Self-Organizing
Feature Maps: Ginzburg-Landau Approach. Phys. Rev. E 49 5840 - 48 (1994)
- 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)
- Bauer, H.-U.; Der, R.; Herrmann, M.: Controling the magnification
factor of self-organizing feature maps. Neural Computation 8, 757-771
(1996)
- 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
- 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)
- Der, R.; Herrmann, M.; Villmann, Th.: Time Behaviour of
Topological Ordering in Self-Organizing Feature Mapping, Biolog.
Cybernetics 77, 419-427 (1997)
- R. Der, D. Smyth.: Local online
learning of coherent information (107K). Neural Networks 11, 1998,
909 - 925.
- R. Der: Self-organized acqusition of situated
behavior. Theory Biosci. (2001) 120: 1 - 9. (gzipped
file here)
- 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).
-
Der R, Herrmann M, Holicki M: Self-organization
in sensor-motor loops by the homeokinetic principle. Verhandl. der Dt.
Physik. Gesellsch. 1/2002, 510
-
Der R., Hesse F., Liebscher R.: Contingent
robot behavior from self-referential dynamical systems. Autonomous
robots submitted.
-
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
-
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
-
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).
-
N. Ay, R. Der, M. Prokopenko:
Information driven self-organization: The dynamical systems approach to autonomous robot behavior.
Theory in Biosciences, to appear (2010).
Book contributions
- 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
- 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
- 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
- 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
- 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
- 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)
- 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
- 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
- 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.
- Der, R. : Herrmann, M.: Second-order
learning in self-organizing maps . In: Kohonen maps; E. Oja,
S. Kaski eds. Springer 1999.
- 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.
Further recent publications
- 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
- Der, R.: Linear Response Theory of Synaptic Plasticity, Wiss.
Zeitschrift TH Ilmenau 37 (1991) 37-41.
- 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
- 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
- Der, R.: Physikalische Modelle und Theoretische Ökonomie,
Schriftenreihe des Institutes für ökologisches Wirtschaften, Berlin 1992
- Der, R; Nonstationary Learning in Simple Neural Nets, Preprint
Universität Leipzig 1992
- Herrmann, M., Der, R.: Attentional control of feature maps.
Preprint 6/93, Universität Leipzig 1993
- Der, R.; Herrmann, M.: Nonlinear Chaos Control by Neural
Networks. In Proceedings International Conference on Artificial Neural
Networks - ICANN'94, 1994
- 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
- Der, R.; Herrmann, M.: Q-Learning Chaos Controller. In:
Proceedings IEEE Int. Conf. Computational Intelligence, Vol. IV 2472 -
2475, Orlando (USA) June 1994
- 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
- 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
- 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
- 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)
- 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)
- 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
- Bauer, H.-U.; Der, R.; Herrmann, M.: Optimal vector quantization
in self-organizing feature maps. Neural Information Processing Systems
(NIPS95), submitted 1995
- Der, R.; Herrmann, M.: Efficient Q-learning by optimized
categorization. Forschungsbericht Nr. 580 der Univ. Dortmund -
Fachbereich Informatik, Dortmund, August 1995
- 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
- Der, R.; Herrmann, M.: Self-adjusting
reinforcement learning . Proc. Nonlinear Theory and Applications -
NOLTA 96. p. 441-444, (Kochi, Japan, Oct. 7-9, 1996)
- 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)
- 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)
- Herrmann, M.; Der, R.;Balzuweit, G.:Hierarchichal feature maps
and nonlinear component analysis. Proc. ICNN'96 Washington, IEEE, 1390
- 1394 (1996)
- 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
- 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)
- 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)
- 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)
- R. Der, U. Steinmetz, F. Pasemann: Homeokinesis. Preprint MPI -
Mathematics in the Sciences (1999).
- 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)
- 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.
- R. Der: Self-organized robot behavior from
the principle of homeokinesis . Proceedings of the SOAVE Workshop,
Ilmenau 2000.
- R. Der: Self-organized acquisition of situated
behavior . EUROBOT'01 submitted.
- R. Der, R. Liebscher: True autonomy from
self-organized adaptivity. In: Proc. Workshop Biologically Inspired
Robotics. Bristol (2002)
- 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.
-
Der, R: . Homeokinesis
and the moderation of complexity in neural systems. Technical report, unpublished (2003).
- R. Der, F. Hesse, R. Liebscher: Self-organized
exploration and automatic sensor integration from the homeokinetic
principle. Proc. SOAVE04, Ilmenau 2004
- R. Der: Self-organization
of robotic forms of life. INISTA 2007 Proceddings. 2007
- 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.
- 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.
- 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.
- Georg Martius, J. Michael Herrmann, Ralf Der: Guided
Self-organisation for Autonomous Robot Development. ECAL'07
- 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
- Ralf Der, Frank Güttler, Nihat Ay: Predictive
information and emergent cooperativity in a chain of mobile robots
Proceedings ALifeXI, MIT Press, 2008
-
Ralf Der:
Artificial Life from the principle of homeokinesis
Proceedings German Workshop on Artificial Life, 2008