Patents by Inventor Konstantinos Xirogiannopoulos

Konstantinos Xirogiannopoulos 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).

  • Patent number: 11170306
    Abstract: According to one embodiment, a computer program product includes a computer readable storage medium having program instructions embodied therewith. The program instructions are executable by a processor to cause the processor to: identify key concepts in a domain ontology, and define a workload as a set of queries. Terms are extracted from each of the queries, and frequent patterns are detected across the set of queries. Maximal patterns are also identified from the frequent patterns detected, while the key concepts and the maximal patterns are used to create a rich entity. Moreover, identifying the key concepts includes performing centrality analysis of concepts extracted from the domain ontology. Other systems, methods, and computer program products are described in additional embodiments.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: November 9, 2021
    Assignee: International Business Machines Corporation
    Inventors: Fatma Ozcan, Abdul H. Quamar, Konstantinos Xirogiannopoulos
  • Publication number: 20180253653
    Abstract: A computer program product, according to one embodiment, includes a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to: identify, by the processor, key concepts in a domain ontology, and use, by the processor, the key concepts to create a rich entity. Identifying the key concepts includes performing centrality analysis of concepts extracted from the domain ontology. Other systems, methods, and computer program products are described in additional embodiments.
    Type: Application
    Filed: March 3, 2017
    Publication date: September 6, 2018
    Inventors: Fatma Ozcan, Abdul H. Quamar, Konstantinos Xirogiannopoulos