Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu|Affymetrix, Inc., 3380 Central Expressway, Santa Clara, CA 95051, USA. wliu@cs.iupui.edu