Patents by Inventor Nikolaos Dimitrios Sidriopoulos

Nikolaos Dimitrios Sidriopoulos has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for analyzing co-evolving time sequences
    Patent number: 6055491
    Abstract: An analyzer system that analyzes a plurality of co-evolving time sequences to, for example, perform correlation or outlier detection on the time sequences. The plurality of co-evolving time sequences comprise a delayed time sequence and one or more known time sequences. A goal is to predict the delayed value given the available information. The plurality of time sequences have a present value and (N-1) past values, where N is the number of samples (time-ticks) of each time sequence. The analyzer system receives the plurality of co-evolving time sequences and determines a window size ("w"). The analyzer then assigns the delayed time sequence as a dependent variable and the present value of a subset of the known time sequences, and the past values of the subset of known time sequences and the delayed time sequence, as a plurality of independent variables. Past values delayed by up to "w" steps are considered.
    Type: Grant
    Filed: October 17, 1997
    Date of Patent: April 25, 2000
    Assignees: AT&T Corp., University of Maryland
    Inventors: Alexandros Biliris, Christos N. Faloutsos, Hosagrahar Visvesvaraya Jagadish, Theodore Johnson, Nikolaos Dimitrios Sidriopoulos, Byoung-Kee Yi