www-ai.cs.tu-dortmund.de/LEHRE/SEMINARE/SS09/AKTARBEITENDESDM/LITERATUR/su09aSubgroupsPartitioning.pdf
occupation (X6), race (X7), union (X8), fulltime (X9), tax.status (X10), household.sum (X11), n.employee (X12), country.birth (X13), citizenship (X14), self.employed (X15), and weeks.worked (X16).
hour …