Systems and methods for identifying a returning web client

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United States of America Patent

PATENT NO 9648142
SERIAL NO

14851386

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Abstract

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Methods and systems are provided for identifying unique devices and/or unique users of a web-based system within constraints of an external application. In some embodiments the process comprises receiving request information from a client device at an application server, using such information to form a device fingerprint, and attempting to match the newly-formed fingerprint with exactly one fingerprint stored in a database of previously-formed fingerprints. Some embodiments utilize a two-stage Locality-Sensitive Hash query technique. The client device fingerprint may be converted into a series of LSH values which may be used to find a matching fingerprint. A first stage may query input LSH values against LSH values in a data store, and a second stage may query LSH values temporarily held in volatile memory, thereby minimizing network traffic and reducing a total process time.

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Patent Owner(s)

Patent OwnerAddress
YAHOO ASSETS LLC770 BROADWAY NEW YORK NY 10003

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gurevich, Gary Wheeling, US 5 27
Shalev, Yaniv Kefer Sava, IL 5 27
Zwelling, Jeffrey Santa Monica, US 5 27

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