Dr. David Haglin will be the guest speaker for the Computer Science Seminar on Wednesday, February 11, 2009. Dr. Haglin's presentation is titled "Large and then Frequent: Finding Colossal Closed Itemsets in Microarray Data". Dr. Jie Wang served as the guest speaker for the Computer Science Seminar on Wednesday, January 28, 2009. Dr. Wang's presentation was titled "Matrix Decompositions in Privacy Preserving Data Mining".