1
Nikolaos Koudas, Divesh Srivastava, Sudipto Guha, Dimitrios Gunopulos, Michail Vlachos: Method and apparatus for optimizing queries under parametric aggregation constraints. AT&T, February 23, 2010: US07668801 (12 worldwide citation)

The present invention relates to a method and apparatus for optimizing queries. The present invention discloses an efficient method for providing answers to queries under parametric aggregation constraints.


2
Vittorio Castelli, Michail Vlachos, Philip S Yu: Systems and methods for structural clustering of time sequences. International Business Machines Corporation, Ference & Associates, May 6, 2008: US07369961 (12 worldwide citation)

Arrangements and methods for performing structural clustering between different time series. Time series data relating to a plurality of time series is accepted, structural features relating to the time series data are ascertained, and at least one distance between different time series via employin ...


3
Nikolaos Koudas, Divesh Srivastava, Sudipto Guha, Dimitrios Gunopulos, Michail Vlachos: Method and apparatus for optimizing queries under parametric aggregation constraints. AT&T Intellectual Property II, March 8, 2011: US07904458 (4 worldwide citation)

The present invention relates to a method and apparatus for optimizing queries. The present invention discloses an efficient method for providing answers to queries under parametric aggregation constraints.


4
Francesco Fusco, Marc P Stoecklin, Michail Vlachos: Network analysis. International Business Machines Corporation, Cantor Colburn, July 15, 2014: US08782012 (4 worldwide citation)

Methods and a device for providing a compressed index of binary records. A method includes: sorting the records by content of a predetermined field of the record, indexing the field from one of the records in a line of a bitmap index, compressing bits in a column of the bitmap index by replacing a g ...


5
Vittorio Castelli, Michail Vlachos, Philip S Yu: Systems and methods for structural clustering of time sequences. International Business Machines Corporation, Ference & Associates, April 26, 2011: US07933740 (3 worldwide citation)

Arrangements and methods for performing structural clustering between different time series. Time series data relating to a plurality of time series is accepted, structural features relating to the time series data are ascertained, and at least one distance between different time series via employin ...


6
Shyh Kwei Chen, Michail Vlachos, Kun Lung Wu, Philip Shi lung Yu: Systems and methods for correlation of burst events among data streams. International Business Machines Corporation, Ference & Associates, May 10, 2011: US07940672 (2 worldwide citation)

Systems and methods for the identification of correlated burst events among two or more data streams, given one or more specific query time spans are disclosed. Also broadly contemplated is the act of finding, from one or more data streams, those streams that have correlated burst events with anothe ...


7
Vittorio Castelli, Michail Vlachos, Philip S Yu: Systems for structural clustering of time sequences. International Business Machines Corporation, Ference & Associates, February 15, 2011: US07890294 (2 worldwide citation)

Arrangements are provided for performing structural clustering between different time series. Time series data relating to a plurality of time series is accepted, structural features relating to the time series data are ascertained, and at least one distance between different time series via employi ...


8
Lisa Amini, Eric Bouillet, Olivier Verscheure, Michail Vlachos: Method and apparatus for identifying conversing pairs over a two-way speech medium. International Business Machines Corporation, October 26, 2010: US07822604 (2 worldwide citation)

One embodiment of the present method and apparatus for identifying a conversing pair of users of a two-way speech medium includes receiving a plurality of binary voice activity streams, where the plurality of voice activity streams includes a first voice activity stream associated with a first user, ...


9
Michail Vlachos, Philip Shi Lung Yu: Systems and methods for computation of optimal distance bounds on compressed time-series data. International Business Machines Corporation, Tutunjian & Bitetto PC, William J Stock Esq, February 1, 2011: US07882126 (2 worldwide citation)

There are provided a method and a system for computation of optimal distance bounds on compressed time-series data. In a method for similarity search, the method includes the step of transforming sequence data into a compressed sequence represented by top-k coefficients of the sequence data and a su ...


10
Deepak Srinivao Turaga, Michail Vlachos, Philip S Yu: Resource adaptive spectrum estimation of streaming data. International Business Machines Corporation, Ference & Associates, February 7, 2012: US08112247 (1 worldwide citation)

Introduced herein is a “resource adaptive” algorithm for spectrum and periodicity estimation on a continuous stream of data. The formulation is based on the derivation of a closed-form incremental computation of the spectrum, augmented by a load-shedding scheme that can adapt to available CPU resour ...