Francine Chen Ayman Farahat Thorsten Brants Multiple Similarity Measures and Source-Pair Information in Story Link Detection. 313-320 2004 HLT-NAACL http://acl.ldc.upenn.edu/hlt-naacl2004/main/pdf/18_Paper.pdf db/conf/naacl/naacl2004.html#ChenFB04