Spam Filtering Using Character-Level Markov Models: Experiments for the TREC 2005 Spam Track. - Andrej Bratko; Bogdan Filipic (TREC, 2005)

Batch and Online Spam Filter Comparison. - Gordon V. Cormack; Andrej Bratko (CEAS, 2006)

Towards Practical PPM Spam Filtering: Experiments for the TREC 2006 Spam Track. - Andrej Bratko; Bogdan Filipic; Blaz Zupan (TREC, 2006)

Exploiting structural information for semi-structured document categorization. - Andrej Bratko; Bogdan Filipic (Inf. Process. Manag., 2006)

Spam Filtering Using Statistical Data Compression Models. - Andrej Bratko; Gordon V. Cormack; Bogdan Filipic; Thomas R. Lynam; Blaz Zupan (J. Mach. Learn. Res., 2006)