Fast Categorisation of Large Document Collections. - Vaughan R. Shanks; Hugh E. Williams (SPIRE, 2001)

Indexing for Fast Categorisation. - Vaughan R. Shanks; Hugh E. Williams; Adam Cannane (ACSC, 2003)

Index construction for linear categorisation. - Vaughan R. Shanks; Hugh E. Williams (CIKM, 2003)