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.
Patent No.:
Date of Patent:
Feb. 16, 2010
Filed:
Mar. 29, 2006
Ulfar Erlingsson, San Francisco, CA (US);
Mark Steven Manasse, San Francisco, CA (US);
Frank D. Mcsherry, San Francisco, CA (US);
Abraham D. Flaxman, Pittsburgh, PA (US);
Ulfar Erlingsson, San Francisco, CA (US);
Mark Steven Manasse, San Francisco, CA (US);
Frank D. McSherry, San Francisco, CA (US);
Abraham D. Flaxman, Pittsburgh, PA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Hash tables comprising load factors of up to and above 97% are disclosed. The hash tables may be associated with three or more hash functions, each hash function being applied to a key to identify a location in a hash table. The load factor of a hash table may be increased, obviating any need to increase the size of the hash table to accommodate more insertions. Such increase in load factor may be accomplished by a combination of increasing the number of cells per bucket in a hash table and increasing the number of hash functions associated with the hash table.