Lei Xie Yulian Yang Jia Zeng Subword Lexical Chaining for Automatic Story Segmentation in Chinese Broadcast News. 248-258 2008 PCM http://dx.doi.org/10.1007/978-3-540-89796-5_26 conf/pcm/2008 db/conf/pcm/pcm2008.html#XieYZ08