Table 1. Word frequency lists of Chinese.

The Language Corpus System of Modern Chinese Study (LCSMCS) word frequencies, based on a corpus of 20 million characters of which 2 million have been segmented into words and assigned their parts-of-speech (PoS) [8]; available at http://www.dwhyyjzx.com/cgi-bin/yuliao/, checked on September 24, 2009).

The Center for Chinese Linguistics (CCL) character frequency list, based on a corpus of Modern Chinese of 307 million characters, published by Peking University (for more information, see http://ccl.pku.edu.cn:8080/ccl_corpus/CCL_CC_Sta_Xiandai.pdf, checked on September 24, 2009).

The Lancaster Corpus of Mandarin Chinese (LCMC), based on a corpus of 73 million characters (50 million words; see http://www.lancs.ac.uk/fass/projects/corpus/LCMC/, checked on September 24, 2009). This is the corpus underlying A frequency dictionary of mandarin Chinese: Core vocabulary for learners [6].

The Academia Sinica Balanced Corpus of Modern Chinese based on 5 million characters and compiled by the Institute of Information Science and the CKIP group in Academia Sinica (http://www.sinica.edu.tw/SinicaCorpus/, checked on September 24, 2009).

Draft for modern Chinese word set for common use ≪≫ () (2008) compiled by the State Language Commission of China [9]. This list contains 56,008 frequency-ranked words, the frequencies of which are based on a segmented part of 45 million characters from the Chinese (General) Balanced Corpus, a segmented corpus of 135 million characters based on People's Daily 2001-2005, and a modern Chinese literature corpus of 70 million characters constructed by Xiamen University. The word frequencies themselves, however, are not yet publicly available.

Word list YW2001 (92,843 words) reported by Sun et al. [10] as part of the major outcome of the national corpus project by the Chinese Information Processing Platform, based on a corpus of ca. 800 million characters, but the list is not publicly accessible so far.