Keith van Risjbergen Papers on DiSC'04 Investigating the relationship between language model perplexity and IR precision-recall measures Publications Note: Links lead to the DBLP on the Web. Keith van Risjbergen Leif Azzopardi , Mark Girolami , Keith van Risjbergen: Investigating the relationship between language model perplexity and IR precision-recall measures. SIGIR 2003 : 369-370 1 [ 1 ] 2 [ 1 ] ©2004 Association for Computing Machinery