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1. (WO2018178026) HIERARCHICAL TEMPORAL MEMORY FOR ACCESS CONTROL

Pub. No.:    WO/2018/178026    International Application No.:    PCT/EP2018/057674
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 27 01:59:59 CEST 2018
IPC: G06F 21/62
Applicants: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
Inventors: DANIEL, Joshua
DU, Xiaofeng
Title: HIERARCHICAL TEMPORAL MEMORY FOR ACCESS CONTROL
Abstract:
A computer implemented method for access control for a restricted resource in a computer system, the method comprising: receiving a first set of records for the computer system, each record detailing an occurrence in the computer system during a training time period when the resource is accessed in an approved manner; generating a sparse distributed representation of the set of records to form a training set for a hierarchical temporal memory (HTM); training the HTM based on the training set in order that the trained HTM provides a model of the operation of the computer system during the training time period; receiving a second set of records for the computer system, each record detailing an occurrence in the computer system during an operating time period for the computer system in use by a consumer of the resource; generating a sparse distributed representation of the second set of records to form an input set for the trained HTM; executing the trained HTM based on the input set to determine a degree of recognition of the records of the input set; and responsive to a determination that a degree of recognition of one or more records of the input set is below a threshold degree, identifying the operation of the computer system by the consumer as unauthorised.