Tuesday, 1:30am-2:20pm in EE1 045. TIME: 1:30-2:20 pm, Feb 28, 2006 PLACE: EE1 045 TITLE: Cell-Probe Complexity and Predecessor Search SPEAKER: Mihai Patrascu MIT ABSTRACT: I will begin with an overview of cell-probe complexity, as used to understand data structures. I will touch both on dynamic problems, including advances from recent years, and static problems. Then I will describe a recent (STOC'06) progress in the static case. In joint work with Mikkel Thorup, we showed the first cell-probe lower bound which is higher than the communication complexity, thus breaking a long-standing barrier. Our technique proves the first separation between polynomial and near-linear space, and gives tight bounds for the well-studied predecessor problem.