8. The method of claim 7 , wherein generating possible Chinese word strings for the third ambiguous word comprises: segmenting the third ambiguous word into pinyin candidates, each pinyin candidate comprising a portion of the third ambiguous word; and identifying possible Chinese word strings for each pinyin candidate, each possible Chinese word string having a weight that indicates a probability that the possible Chinese word string corresponds to the pinyin candidate.
7. The method of claim 6 , wherein determining a probability that the third ambiguous word corresponds to a Chinese query comprises generating possible Chinese word strings for the third ambiguous word, each possible Chinese word string having a weight that indicates a probability that the possible Chinese word string corresponds to a pinyin word sting comprising the third ambiguous word.