SYSTEMS AND METHODS FOR AUTOMATIC AND INCREMENTAL LEARNING OF PATIENT STATES FROM BIOMEDICAL SIGNALS

Title:

SYSTEMS AND METHODS FOR AUTOMATIC AND INCREMENTAL LEARNING OF PATIENT STATES FROM BIOMEDICAL SIGNALS

Document Type and Number:

WIPO Patent Application WO/2005/109334

Kind Code:

A2

Abstract:

Given a record of instruments values over time, a user can mark the record t select the values of particular instruments during particular time ranges (Fig. 4 item 402). They can further indicate the events (states) associated with those values and time ranges (Fig. 4 item 404). These markings define the topology of the PNN. The selected instruments define the input nodes of te PNN and the event(s) detected, define theclass nodes wherein each event has a cossesponding positive class node and a corresponding negative class node. Upon construction the PNN, training may be added to further refine the knowledge of the neural network in a time efficient manner (Fig. 4 item 406). Because the optimal value of sigma varies little over training set sizes, training cases may be incrementally added to the PNN, further adding to its recognition capabilities, without having to train the PNN on the new cases or re-train on the old cases(Fig. 4 item 410). As such, patient specific neural networks may be created in a time and cost efficient manner.

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Inventors:

WILSON SCOTT B (US)

Application Number:

PCT/US2005/012983

Publication Date:

November 17, 2005

Filing Date:

April 15, 2005

Export Citation:

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Assignee:

PERSYST DEV CORP (US)
WILSON SCOTT B (US)

International Classes:

A61B5/0476; G06E1/00; G06E3/00; G06F15/18; G06F19/00; G06G7/00; G06N3/02; G06N3/08; (IPC1-7): G06N3/08; G06E1/00; G06E3/00; G06F15/18; G06G7/00; G06N3/02

Foreign References:

US5943661A	1999-08-24
US6282305B1	2001-08-28
US5559929A	1996-09-24
US20010014776A1	2001-08-16
US6092059A	2000-07-18
US5857179A	1999-01-05
US6336119B1	2002-01-01
US6324532B1	2001-11-27
US20020007237A1	2002-01-17
US6157921A	2000-12-05

Attorney, Agent or Firm:

SIMPSON, Amy, E. (Janofsky & Walker LLPP.O. Box 91909, San Diego CA, US)

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