Masnizah Mohd Fabio Crestani Ian Ruthven Design of an Interface for Interactive Topic Detection and Tracking. 227-238 2009 FQAS http://dx.doi.org/10.1007/978-3-642-04957-6_20 conf/fqas/2009 db/conf/fqas/fqas2009.html#MohdCR09