DOUGLAS WILLIAM OARD
Pilots at 52 Ave, College Park, MD

License number
Maryland A1409742
Issued Date
Apr 2015
Expiration Date
Apr 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
9706 52Nd Ave, College Park, MD 20740

Professional information

Douglas Oard Photo 1

System And Method For Confidentiality-Preserving Rank-Ordered Search

US Patent:
2010014, Jun 10, 2010
Filed:
Oct 29, 2009
Appl. No.:
12/608724
Inventors:
Ashwin SWAMINATHAN - San Diego CA, US
Yinian Mao - San Diego CA, US
Hongmei Gou - Germantown MD, US
Avinash L. Varna - Greenbelt MD, US
Shan He - Plainsboro NJ, US
Min Wu - Clarksville MD, US
Douglas W. Oard - College Park MD, US
International Classification:
G06F 17/30, H04L 9/00
US Classification:
713189, 707728, 707705, 707E17014, 707E17017
Abstract:
A confidentiality preserving system and method for performing a rank-ordered search and retrieval of contents of a data collection. The system includes at least one computer system including a search and retrieval algorithm using term frequency and/or similar features for rank-ordering selective contents of the data collection, and enabling secure retrieval of the selective contents based on the rank-order. The search and retrieval algorithm includes a baseline algorithm, a partially server oriented algorithm, and/or a fully server oriented algorithm. The partially and/or fully server oriented algorithms use homomorphic and/or order preserving encryption for enabling search capability from a user other than an owner of the contents of the data collection. The confidentiality preserving method includes using term frequency for rank-ordering selective contents of the data collection, and retrieving the selective contents based on the rank-order.