The automatic extraction of common-used adverbs for teaching Chinese as second language

This paper establishes the adverb statistical wordlist of Chinese teaching, by using the People's Daily and radio and television corpus within five years and designing the time span, statistical time point, stability, etc. The wordlist includes more than 40 statistical time points and describable change curve. Meanwhile, this paper improves the method which provides a valuable data for synonym discrimination and makes the performance much accord with people's experience. Finally, we analyze the top 26 common-used adverbs from the Graded Chinese Syllables according to the statistical wordlist. The result shows that 50% of the top 26 common-used adverbs in Graded Chinese Syllables are ranked between 50 and 174 position of the statistical wordlist. Thus there is much room for improving the common-used adverb ranking in the Graded Chinese Syllables.