Assessing performance in a spatial and temporal memory system

摘要

A spatial and temporal memory system (STMS) processes input data to detect whether spatial patterns and/or temporal sequences of spatial patterns exist within the data, and to make predictions about future data. The data processed by the STMS may be retrieved from, for example, one or more database fields and is encoded into a distributed representation format using a coding scheme. The performance of the STMS in predicting future data is evaluated for the coding scheme used to process the data as performance data. The selection and prioritization of STMS experiments to perform may be based on the performance data for an experiment. The best fields, encodings, and time aggregations for generating predictions can be determined by an automated search and evaluation of multiple STMS systems.

主权项

1. A method of evaluating predictive performance of a spatial and temporal memory system, comprising:
generating a spatial and temporal memory system output by a sequence processor based on stored relationships between candidate spatial patterns determined by a spatial pooler from received input data representing a spatial pattern at a first time; determining a predicted spatial pattern at a second time by predicting a first input to the sequence processor based on the spatial and temporal memory system output, and by predicting a second input to the spatial pooler based on the predicted first input and a mapping between input data and stored spatial patterns; and evaluating the performance of the spatial and temporal memory system by comparing the predicted spatial pattern at the second time and a spatial pattern received at the second time.