Method for generating a representation of an environment

Details Method for generating a representation of an environment Method for generating a representation of an environment

1994-04-15

1999-07-06

Downs, Robert W.

Data processing: artificial intelligence

Neural network

Learning task

706 29, G06F 1518

Patent

active

059208511

ABSTRACT:
The invention provides for the use of synaptic strengths to reflect the connectivity of local space to give a topological representation. Synaptic strengths are zeroed and the mobile entity's position is initialized. A probability of firing (P) is calculated from the spatial firing pattern of each cell. A cell fires if P is higher than a random number. The mobile entity's position is updated from a record of real motions and firing is again determined. Synapses between cells that both fire within 250 msec are strengthened. Synapses between cells with overlapping fields increase in strength whereas synapses between cells with distant fields will stay weak.

REFERENCES:
patent: 4518866 (1985-05-01), Clymer
patent: 4807168 (1989-02-01), Moopenn et al.
patent: 4884216 (1989-11-01), Kuperstein
patent: 4903226 (1990-02-01), Tsividis
patent: 4918617 (1990-04-01), Hammerstrom et al.
patent: 4950917 (1990-08-01), Holler et al.
patent: 4951239 (1990-08-01), Andes et al.
patent: 4962342 (1990-10-01), Mead et al.
patent: 4972187 (1990-11-01), Wecker
patent: 4994982 (1991-02-01), Duranton et al.
patent: 4996648 (1991-02-01), Jourjine
patent: 5003490 (1991-03-01), Castelaz et al.
patent: 5040214 (1991-08-01), Grossburg et al.
patent: 5119469 (1992-06-01), Alkon et al.
patent: 5130563 (1992-07-01), Nebet et al.
patent: 5136687 (1992-08-01), Edelman et al.
patent: 5283839 (1994-02-01), Edelman et al.
patent: 5355437 (1994-10-01), Takatori et al.
patent: 5361328 (1994-11-01), Takatori et al.
patent: 5394510 (1995-02-01), Takatori et al.
patent: 5402522 (1995-03-01), Alkon et al.
patent: 5485546 (1996-01-01), Rubenstein et al.
Sharp P.E., "Computer-Simulation of Hippocampal Place Cells", Psychobiology, 1991 (abstract).
J. Alspector, IEEE Communications Magazine, pp. 29-36 (Nov. 1989).
I. Amato, Science News 131: 60-61 (Jan. 1987).
J.J. Hopfield, Proc. Natl. Acad. Sci. USA 79: 2554-2558 (1982).
J.J. Hopfield and D.W. Tank, Science 233: 625-633 (1986).
O. Rossetto et al., IEEE MICRO, pp. 56-63 (Dec. 1989).
M. Verleysen and P.G.A. Jespers, IEEE MICRO, pp. 46-55 (Dec. 1989).
D.G. Amaral and M.P. Witter, Neuroscience 31: 571-591 (1989).
J.L. Kubie and J.B. Ranck, in "Neuropsychology of Memory", Eds. L.R. Squire and N. Butters, Guilford Press, New York (1984) pp. 417-423.
T.H. Brown et al., in "Neural Models of Plasticity", Eds. J.H. Byrne and W.O. Berry, Academic Press, Inc., San Diego (1989) pp. 266-306.
B.L. McNaughton, in "Neural Connections, Mental Computation", Eds. L. Nadel et al., MIT Press, Cambridge, Massachusetts (1989) pp. 285-350.
R. Miles and R.K.S. Wong, J. Physiol. 373: 397-418 (1986).
R.G.M. Morris, Learning and Motivation 12: 239-260 (1981).
R.U. Muller and J.L. Kubie, J. Neuroscience 7: 1951-1968 (1987).
J. O'Keefe, Progress in Neurobiology 13: 419-439 (1979).
J. O'Keefe and J. Dostrovsky, Brain Research 34: 171-175 (1971).
J. O'Keefe and A. Speakman, Exp Brain Res 68: 1-27 (1987).
G.J. Quirk et al., J. Neuroscience 10: 2008-2017 (1990).
P.E. Sharp et al., J. Neuroscience 10: 3093-3105 (1990).
L.T. Thompson and P.J. Best, J. Neuroscience 9: 2382-2390 (1989).
Disclosure Bulletin C-853, "A Method of Using a Neural Network to Increase the Efficiency of Robot Mobility" of The Research Foundation of State University of New York--Technology Transfer Office (AEKS/M Jun. 1, 1991).

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