The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 17, 2019

Filed:

Oct. 24, 2016
Applicant:

Salesforce.com, Inc., San Francisco, CA (US);

Inventors:

Kenneth Chung Kay Ko, San Francisco, CA (US);

Kanagha Pradha Kumar Prasad, San Bruno, CA (US);

Rupali Jagtap, Fremont, CA (US);

Assignee:

SALESFORCE.COM, INC., San Francisco, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); G06F 16/22 (2019.01); G06F 16/31 (2019.01);
U.S. Cl.
CPC ...
G06F 16/2255 (2019.01); G06F 16/313 (2019.01);
Abstract

A multi-token matching scheme efficiently detects multi-token keyword matches in content received by a database system. A keyword list may include multi-token keywords. Head tokens from the multi-token keywords are converted into a head hashmap. Token chains identifying tokens and delimiters in the multi-token keywords are generated and linked to the head hashmap. Tokens in the content are compared with the head hashmap. The matching tokens and following segments in the content are compared with the token chains. Portions of the content matching the token chains are identified as keyword matches. The matching scheme may use reverse delimiter tries to detect content matches for multi-token keywords with leading delimiters.


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