Patent · US Active

Construction of text classifiers

US9317564B1 · kind B1 · utility

5Cited by

10References

19Claims

0Family size

Assignee

Google LLC · US

Inventors

Dmity Korolev · Unteriberg, CH
Hartmut Maennel · Zürich, CH
Matthias Heiler · Zürich, CH
Michael Schaer · Deitingen, CH
Thomas Hofmann · San Diego, US
Wojciech Gajewski · Zürich, CH
Justyna Sidorska · Küsnacht (ZH), CH

Key dates

Filing date	Oct 20, 2014
Grant date	Apr 19, 2016
Priority date	—
Expiry date	Oct 20, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06F16/35
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Methods, systems, and apparatus, including computer program products, for constructing text classifiers. The method includes receiving a collection of candidate phrases for a given topic; filtering the received candidate phrases to remove erroneously included candidate phrases; assigning weights to the candidate phrases including scoring each candidate phrase using an initial classifier and assigning weights to the candidate phrases based on the scores; and generating a linear classifier using the filtered and weighted candidate phrases, where the linear classifier varies the weights for each phrase candidate depending on the length of the document being classified.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.