Patents by Inventor Sivaranjini Dharmalingam

Sivaranjini Dharmalingam 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).

  • Optimized mapping of documents to candidate duplicate documents in a document corpus
    Patent number: 9607029
    Abstract: Technologies are disclosed for mapping documents to candidate duplicate documents in a document corpus. A bitset optimized inverted index is created for a document corpus. A document is received for which candidate duplicate documents in the document corpus are to be identified. The document is tokenized using adaptive tokenization. A determination made as to whether tokens in the document are represented in the bitset optimized inverted index. A list of candidate duplicate documents is created for tokens represented in the optimized inverted index utilizing in-memory bitsets that map tokens to documents that contain the tokens in the document corpus.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 28, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Sivaranjini Dharmalingam, Nathan Thomas Close, Shantanu Shailendrakumar Fauji, Sean Gwizdak, Jiahui Jiang, Yohan Mammen, Roshan Rammohan