%0 Conference Paper %B ACM Workshop on Multimedia and Security (MMSEC) %D 2009 %T EM decoding of Tardos traitor tracing codes %A Teddy Furon %A Luis PĂ©rez-Freire %K collusion channel %K Expectation-Maximization %K iterative decoding %K Tardos code %K Traitor tracing %K watermarking %B ACM Workshop on Multimedia and Security (MMSEC) %C Princeton, NJ, USA %8 7-8 September %G eng