| Title | : | Algorithms and Data Structures for Geometric Intersection Query Problems | 
| Speaker | : | Rahul Saladi (UIUC, USA) | 
| Details | : | Fri, 26 Jun, 1970 2:00 PM @ A M Turing Hall | 
| Abstract: | : | Geometric intersection queries (GIQ) a.k.a. range-searching queries have been very well studied 
by the computational geometry community and the database community. In a GIQ problem, the 
user is not interested in the entire input geometric dataset, but only in a small subset of it and 
requests an informative summary of that small subset of data. The goal is to organize the data 
into a data structure which occupies a small amount of space and yet responds to any user query in real-time. In this talk, I will try to give an overview of the contributions I have made along with my co-authors on some of the GIQ problems. The focus will be on (a) top-k queries which are very popular in the database community, and (b) point location and rectangle stabbing queries which are fundamental problems in the computational geometry community. | 
