Efficient computation of document similarity

Details Efficient computation of document similarity Efficient computation of document similarity

2006-11-29

2009-10-27

Mizrahi, Diane (Department: 2617)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000

Reexamination Certificate

active

07610281

ABSTRACT:
Systems, methodologies, media, and other embodiments associated with efficiently computing document similarity are described. One exemplary system embodiment includes logic to produce a gram from a string and logic to identify candidate documents based on identifying matches between query grams and document grams stored in an inverted index that relates grams to documents. The example system may also include logic to selectively partially reconstruct a candidate document from entries in the inverted index and logic to compute an edit distance between a string associated with a query and a string associated with the partially reconstructed candidate document. The example system may also include a signal logic configured to provide a signal corresponding to the edit distance.

REFERENCES:
patent: 7321259 (2008-01-01), Shumarayev
patent: 2007/0150279 (2007-06-01), Gandhi et al.
patent: 2008/0010316 (2008-01-01), Liao et al.
patent: 2008/0077570 (2008-03-01), Tang et al.

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