Google Inc.

Klaus Macherey

Franz Josef Och

Ashok Chhabedia Popat

David Robert Talbot

Andrew M Dai

Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for decompounding compound words are disclosed. In one aspect, a method includes obtaining a token that includes a sequence of characters, identifying two or more candidate sub-words that are constituents of the token, and one or more morphological operations that are required to transform the sub-words into the token, where at least one of the morphological operations involves a use of a non-dictionary word, and determining a cost associated with each sub-word and a cost associated with each morphological operation.

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Sunnyvale, CA, United States of America

Klaus Macherey