AbstractGiven an n-edge convex subdivision of the plane, is it possible to report its k intersections with a query line segment in O(k+polylog(n)) time, using subquadratic storage? If the query is a plane and the input is a polytope with n vertices, can one achieve O(k+polylog(n)) time with subcubic storage? Does any convex polytope have a boundary dominant Dobkin–Kirkpatrick hierarchy? Can fractional cascading be generalized to planar maps instead of linear lists? We prove that the answer to all of these questions is no, and we derive near-optimal solutions to these classical problems
We study the following problem: preprocess a set O of objects into a data structure that allows us t...
AbstractDehne, F., A. Ferreira and A. Rau-Chaplin, Parallel fractional cascading on hypercube multip...
We give an algorithmic and lower bound framework that facilitates the construction of subexponential...
AbstractGiven an n-edge convex subdivision of the plane, is it possible to report its k intersection...
Using the notions of Q-heaps and fusion trees developed by Fredman and Willard, we develop a faster ...
Dehne, F., A. Ferreira and A. Rau-Chaplin, Parallel fractional cascading on hypercube multiprocessor...
We present data structures that can answer window queries for a sequence of geometric objects, such ...
We consider segment intersection searching amidst (possibly intersecting) algebraic arcs in the plan...
Fractional cascading is a technique designed to allow efficient sequential search in a graph with ca...
AbstractWe consider the general problem of (2-dimensional) range reporting allowing arbitrarily conv...
We consider an approximate version of a fundamental geometric search problem, polytope membership qu...
The design of efficient data structures is of primary importance in creation of theoretical algorith...
Fractional cascading is a technique designed to allow efficient sequential search in a graph with ca...
We present sublinear algorithms to such problems as Detecting of Polytope intersection, Shortest Pat...
We present a data structure for ray-shooting queries in a set of convex fat polyhedra of total compl...
We study the following problem: preprocess a set O of objects into a data structure that allows us t...
AbstractDehne, F., A. Ferreira and A. Rau-Chaplin, Parallel fractional cascading on hypercube multip...
We give an algorithmic and lower bound framework that facilitates the construction of subexponential...
AbstractGiven an n-edge convex subdivision of the plane, is it possible to report its k intersection...
Using the notions of Q-heaps and fusion trees developed by Fredman and Willard, we develop a faster ...
Dehne, F., A. Ferreira and A. Rau-Chaplin, Parallel fractional cascading on hypercube multiprocessor...
We present data structures that can answer window queries for a sequence of geometric objects, such ...
We consider segment intersection searching amidst (possibly intersecting) algebraic arcs in the plan...
Fractional cascading is a technique designed to allow efficient sequential search in a graph with ca...
AbstractWe consider the general problem of (2-dimensional) range reporting allowing arbitrarily conv...
We consider an approximate version of a fundamental geometric search problem, polytope membership qu...
The design of efficient data structures is of primary importance in creation of theoretical algorith...
Fractional cascading is a technique designed to allow efficient sequential search in a graph with ca...
We present sublinear algorithms to such problems as Detecting of Polytope intersection, Shortest Pat...
We present a data structure for ray-shooting queries in a set of convex fat polyhedra of total compl...
We study the following problem: preprocess a set O of objects into a data structure that allows us t...
AbstractDehne, F., A. Ferreira and A. Rau-Chaplin, Parallel fractional cascading on hypercube multip...
We give an algorithmic and lower bound framework that facilitates the construction of subexponential...