The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 1999
Filed:
Oct. 15, 1996
Thomas M Kroeger, Santa Cruz, CA (US);
Darrell D Long, Soquel, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
A method of tracking events and their sequences in a computer system and predicting the probability of future events using a data structure that represents the predictive nature of the system after an initial event correlating to an object in the system. The invention reduces memory requirements and computational complexity by partitioning a trie into subtries where each subtrie represents a set of sequences of events, statically limiting the size of the partitions by limiting the number of descendants below the node defining the partition, and refreshing parts of the set of children and releasing slots occupied by particular descendants when additional space is needed. In addition, each partition can be attached to the object which it represents and moved in and out of memory with that object. In this way, data structures which would otherwise grow as large as N.sup.O and which have a computational complexity of predictions on the order of O.times.N, where N is the number of objects modeled and O is the model order, will be limited in size to N which, in turn, limits the computational complexity to order O.