Patents by Inventor Frederic Andres

Frederic Andres 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).

  • Apparatus for evaluating database query performance having libraries containing information for modeling the various system components of multiple systems
    Patent number: 5724569
    Abstract: An apparatus for adaptable performance evaluation of an application including queries by analytical resolution of a data base, and operating on an information processing system having a given architecture, including a library for knowledge of the specific environment of a data base. The knowledge library, in an environment specification language, includes an architecture library for modeling hardware architectures; a system library modeling the operational and transactional systems supported by the hardware architectures; an access and operation method library modeling the algorithms used by the data management system; and a library of data base profiles collecting knowledge on the data base layout and statistics on the user application. A local optimizer uses a performance evaluator to evaluate the application and select an optimal plan for the execution thereof using the information in the knowledge library including information on the given architecture.
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: March 3, 1998
    Assignee: Bull S.A.
    Inventor: Frederic Andres
  • Method of extracting statistical profiles, and use of the statistics created by the method
    Patent number: 5692171
    Abstract: The present invention relates to a method of extracting statistical profiles from a relational data base organized by relation, attribute, and index. The profiles are arranged in tables (210, 220) that are included in the data base (21, 22). A target object is selected from among the possible choices. The choices are one column of a table, all the columns of a table, all the tables, or a particular selection; and a statistical profile is produced or generated.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: November 25, 1997
    Assignee: Bull S.A.
    Inventor: Frederic Andres
  • Method of classification and performance evaluation of computer architectures
    Patent number: 5412778
    Abstract: The present invention provides a method for classifying an architecture of a computer, the computer having a plurality of processors that are interconnected to one or more memories via interconnect networks. The method classifies the architecture of the computer by evaluating the number of local communications between a memory and a processor and evaluating the number of shared communications between a processor and a plurality of memories. A range coefficient is then determined based on a ratio of the number of local communications and shared communications. The range coefficient is used to classify the architecture and to evaluate the performance thereof.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: May 2, 1995
    Assignee: Bull, S.A.
    Inventor: Frederic Andres