creators_name: Rinkus, Gerard J. type: confpaper datestamp: 2004-03-06 lastmod: 2011-03-11 08:55:29 metadata_visibility: show title: TEMECOR: An Associative, Spatio-temporal Pattern Memory for Complex State Sequences ispublished: pub subjects: comp-neuro-sci subjects: comp-sci-neural-nets full_text_status: public keywords: spatiotemporal pattern memory sequence associative abstract: The problem of representing large sets of complex state sequences (CSSs)---i.e., sequences in which states can recur multiple times---has thus far resisted solution. This paper describes a novel neural network model, TEMECOR, which has very large capacity for storing CSSs. Furthermore, in contrast to the various back-propagation-based attempts at solving the CSS problem, TEMECOR requires only a single presentation of each sequence. TEMECOR's power derives from a) its use of a combinatorial, distributed representation scheme, and b) its method of choosing internal representations of states at random. Simulation results are presented which show that the number of spatio-temporal binary feature patterns which can be stored to some criterion accuracy (e.g., 97%) increases faster-than-linearly in the size of the network. This is true for both uncorrelated and correlated pattern sets, although the rate is slightly slower for correlated patterns. date: 1995 date_type: published publisher: Lawrence Erlbaum Associates, Inc. and INNS Press pagerange: 442-448 refereed: TRUE referencetext: Cleeremans, A. (1993) Mechanisms of Implicit Learning: Connectionist Models of Sequence Processing. A Bradford Book, The MIT Press, Cambridge, MA. Elman, J. L. (1990) “Finding Structure in Time” Cognitive Science, 14, 179-212. Guyon, I., Personnaz, L., & Dreyfus, G. (1988) “Of points and loops” In Eckmiller, R. & Malsburg, C.v.d. (Eds.) Neural Computers, NATO ASI Series, Vol. F41, 261-269. Springer-Verlag, Berlin, Germany. Jordan, M. I. (1986) “Serial Order” Tech. Rep. 8604, Institute for Cognitive Science, University of California, San Diego, CA. McCloskey, M. & Cohen, N. J. (1989) “Catastrophic Interference in Connectionist Networks: The Sequential Learning Problem”, In The Psychology of Learning and Memory Vol. 24. Bower, G. H. (Ed.) Academic Press. 109-165. Rinkus, G. (1993) “Context-sensitive Spatio-temporal Memory” Tech. Rep. CAS/CNS-TR-93-031, Dept. of Cognitive and Neural Systems, Boston University, Boston, MA Rinkus, G. (1995) A Combinatorial Neural Network Exhibiting both Episodic Memory and Generalization for Spatio-Temporal Patterns. Ph.D. Thesis, Graduate School of Arts and Sciences, Boston University. In Progress. Smith, A. W. & Zipser, D. (1989) “Learning Sequential Structure with the Real-Time Recurrent Learning Algorithm” International Journal of Neural Systems, 1, 125-131. Williams, R.J. & Zipser, D. (1989) “A learning algorithm for continually running fully recurrent neural networks” Neural Computation, 1, 270-280. citation: Rinkus, Gerard J. (1995) TEMECOR: An Associative, Spatio-temporal Pattern Memory for Complex State Sequences. [Conference Paper] document_url: http://cogprints.org/3472/1/wcnn95.pdf