Synergetic Computers and Cognition: A Top-Down Approach to by Hermann Haken PDF

By Hermann Haken

ISBN-10: 3642075738

ISBN-13: 9783642075735

ISBN-10: 3662101823

ISBN-13: 9783662101827

This e-book provides a singular method of neural nets and therefore deals a real substitute to the hitherto recognized neuro-computers. This strategy is predicated at the author's discovery of the profound analogy among trend reputation and trend formation in open structures faraway from equilibrium. therefore the mathematical and conceptual instruments of synergetics should be exploited, and the concept that of the synergetic desktop formulated. a whole and rigorous thought of development popularity and studying is gifted. The ensuing set of rules may be applied on serial pcs or learned through totally parallel nets wherein no spurious states take place. particular examples (recognition of faces and town maps) are supplied. the popularity procedure is made invariant with recognize to simultaneous translation, rotation, and scaling, and permits the popularity of advanced scenes. Oscillations and hysteresis within the belief of ambiguous styles are taken care of, in addition to the popularity of circulate styles. A comparability among the popularity skills of people and the synergetic machine sheds new mild on attainable versions of psychological strategies. The synergetic computing device may also practice logical steps corresponding to the XOR operation. the hot variation contains a part on transformation homes of the equations of the synergetic desktop and at the invariance homes of the order parameter equations. extra additions are a brand new part on stereopsis and up to date advancements within the use of pulse-coupled neural nets for development recognition.

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Synergetic Computers and Cognition: A Top-Down Approach to - download pdf or read online

This booklet provides a singular method of neural nets and hence bargains a real substitute to the hitherto recognized neuro-computers. This method is predicated at the author's discovery of the profound analogy among development reputation and development formation in open structures faraway from equilibrium. therefore the mathematical and conceptual instruments of synergetics should be exploited, and the concept that of the synergetic computing device formulated.

Extra info for Synergetic Computers and Cognition: A Top-Down Approach to Neural Nets

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75) v=2 * For k 0 the sum can be easily performed and we obtain via some intermediate steps the result k=F-0: (5. 76) J-1 =0 In the case k = 0 we obtain k = 0: J + (M- 1 ) = 0 . e. a positive eigenvalue indicating stability. 79) K= -B' which are negative, indicating instability. Thus we may conclude that provided M> 2 all points are unstable. Because one eigenvalue is positive and the others negative, we are dealing with a saddle point. We may summarize our results as follows: 1) If there is only one order parameter M=1' K=C.

Examples: Recognition of Faces and of City Maps 53 Fig. 3 (a) When a letter from one of the patterns of Fig. 1 a is presented, the synergetic computer can restore the whole pattern - face plus letter. (b) When part of a face is offered, the computer can restore the whole face together with the letter encoding the name. 50 log (S ig) Fig. 4. Recognition of noisy patterns. For a given width of the Gaussian noise intensity, a noisy face is offered again and again to the computer and its percentage success rate in recognizing the face is recorded.

When an incomplete set of data is given, the associative memory must be able to complement it. b) We construct a dynamical process by which pattern recognition is performed. To this end we invent a potential landscape in which a fictitious particle, which describes the patterns, moves. An example is provided by the ambivalent patterns of Fig. 1. Later on we shall see that ambiguous patterns require a specific treatment, but for the time being we shall stick to the idea that the system is pulled into one of its attracting states provided an initial condition is set such that the symmetry is broken.

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Synergetic Computers and Cognition: A Top-Down Approach to Neural Nets by Hermann Haken


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