Chung Huan Wu

US Patent:

20120011115, Jan 12, 2012

Filed:

Jul 8, 2011

Appl. No.:

13/179413

Inventors:

Jayant Madhavan - San Francisco CA, US
Chung M. Wu - Sunnyvale CA, US
Alon Halevy - Los Altos CA, US
Gengxin Miao - Elk Grove CA, US
Marius Pasca - Sunnyvale CA, US

International Classification:

G06F 17/30

US Classification:

707723, 707736, 707740, 707E1709, 707E17014

Abstract:

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for searching tables using recovered semantic information. In general, one aspect of the subject matter described in this specification can be embodied in methods that include the actions of receiving a collection of tables, each table including a plurality of rows, each row including a plurality of cells; recovering semantic information associated with each table of the collection of tables, the recovering including determining a class associated with each respective table according to a class-instance hierarchy including identifying a subject column of each table of the collection of tables; and labeling each table in the collection of tables with the respective class.