Our most recent additions - Croatian, Filipino, Ukrainian, and Vietnamese - required creative solutions to reflect how each language is used across devices and in everyday conversations. For example, since Vietnamese is a tonal language, we had to explore how to take tones into consideration. One simple technique is to model the tone and vowel combinations (tonemes) directly in our lexicons. This, however, has the side effect of a larger phonetic inventory. As a result we had to come up with special algorithms to handle the increased complexity. Additionally, Vietnamese is a heavily diacritized language, with tone markers on a majority of syllables. Since Google Search is very good at returning valid results even when diacritics are omitted, our Vietnamese users frequently omit the diacritics when typing their queries. This creates difficulties for the speech recognizer, which selects its vocabulary from typed queries. For this purpose, we created a special diacritic restoration algorithm which enables us to present properly formatted text to our users in the majority of cases. => Looking forward to speaking Vietnamese to Google Search!
Posted on: Fri, 26 Jul 2013 13:01:38 +0000
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