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:
Jun. 03, 2008
Filed:
Jun. 29, 2004
Gautam Das, Redmond, WA (US);
Surajit Chaudhuri, Redmond, WA (US);
Vagelis Hristidis, La Jolla, CA (US);
Gerhard Weikum, Saarbruecken, DE;
Gautam Das, Redmond, WA (US);
Surajit Chaudhuri, Redmond, WA (US);
Vagelis Hristidis, La Jolla, CA (US);
Gerhard Weikum, Saarbruecken, DE;
Microsoft Corporation, Redmond, CA (US);
Abstract
A system and methods rank results of database queries. An automated approach for ranking database query results is disclosed that leverages data and workload statistics and associations. Ranking functions are based upon the principles of probabilistic models from Information Retrieval that are adapted for structured data. The ranking functions are encoded into an intermediate knowledge representation layer. The system is generic, as the ranking functions can be further customized for different applications. Benefits of the disclosed system and methods include the use of adapted probabilistic information retrieval (PIR) techniques that leverage relational/structured data, such as columns, to provide natural groupings of data values. This permits the inference and use of pair-wise associations between data values across columns, which are usually not possible with text data.