Patents by Inventor Liviu Sebastian Matei

Liviu Sebastian Matei 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: 12204574
    Abstract: Operations of a search management system are disclosed. The operations may include: identifying a data corpus containing a plurality of documents, generating sets of feature vectors representing the plurality of documents, receiving a query to search the data corpus, generating a query vector for the query, identifying a target feature vector that meets a similarity threshold by comparing the query vector to the feature vectors, and presenting a query result that includes at least part of the document. The feature vectors may be generated by executing a multi-step partitioning process for partitioning a respective document into a plurality of document partitions, such that the sets of feature vectors that are generated correspond to the plurality of document partitions for the respective document. The query result may include a target partition from among the plurality of document partitions represented by the target feature vector.
    Type: Grant
    Filed: April 12, 2024
    Date of Patent: January 21, 2025
    Assignee: Oracle International Corporation
    Inventors: Liviu Sebastian Matei, Filippo Beghelli
  • Publication number: 20240354323
    Abstract: Operations of a search management system are disclosed. The operations may include: identifying a data corpus containing a plurality of documents, generating sets of feature vectors representing the plurality of documents, receiving a query to search the data corpus, generating a query vector for the query, identifying a target feature vector that meets a similarity threshold by comparing the query vector to the feature vectors, and presenting a query result that includes at least part of the document. The feature vectors may be generated by executing a multi-step partitioning process for partitioning a respective document into a plurality of document partitions, such that the sets of feature vectors that are generated correspond to the plurality of document partitions for the respective document. The query result may include a target partition from among the plurality of document partitions represented by the target feature vector.
    Type: Application
    Filed: April 12, 2024
    Publication date: October 24, 2024
    Applicant: Oracle International Corporation
    Inventors: Liviu Sebastian Matei, Filippo Beghelli
  • Patent number: 11983209
    Abstract: Operations of a search management system are disclosed. The operations may include: identifying a data corpus containing a plurality of documents, generating sets of feature vectors representing the plurality of documents, receiving a query to search the data corpus, generating a query vector for the query, identifying a target feature vector that meets a similarity threshold by comparing the query vector to the feature vectors, and presenting a query result that includes at least part of the document. The feature vectors may be generated by executing a multi-step partitioning process for partitioning a respective document into a plurality of document partitions, such that the sets of feature vectors that are generated correspond to the plurality of document partitions for the respective document. The query result may include a target partition from among the plurality of document partitions represented by the target feature vector.
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: May 14, 2024
    Assignee: Oracle International Corporation
    Inventors: Liviu Sebastian Matei, Filippo Beghelli
  • Publication number: 20230066143
    Abstract: A document may be received as part of a request to identify similar documents in a collection of documents. However, the received document and the documents in the collection may have different schemas or formats. To provide semantic context to the search and allow similarity scores to be generated between different document types, a configuration may be accessed that defines how to generate queries from one schema into another schema. The configuration may map queries between different fields in both schemas. Results of the multiple queries can be combined to generate a weighted combination for each document that can be used as a similarity score between different document types.
    Type: Application
    Filed: September 1, 2021
    Publication date: March 2, 2023
    Applicant: Oracle International Corporation
    Inventors: Liviu Sebastian Matei, Filip Trojan, Marc Michiel Bron, Andrew Kenneth Hind, Yingzhao Zhou, Maria-Monica Petrica, Rajesh Ashwinbhai Shah
  • Publication number: 20230068342
    Abstract: A document repository may be searched for documents that are similar to a source document. Multiple queries may be generated based on a type of the source document, and the results may be combined in a unified response. User behavior may then be monitored, and implicit and explicit feedback may be gathered to evaluate the performance of the search. The gathered feedback may indicate how relevant each of the result documents are in comparison to the original source document. This feedback may then be used to adjust search parameters for the source document type, such that the performance of subsequent searches may be improved. A model may also be trained to classify implicit feedback using explicit feedback received from users.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 2, 2023
    Applicant: Oracle International Corporation
    Inventors: Liviu-Sebastian Matei, Filip Trojan