TY - GEN
T1 - Weak -nets have basis of size o(1/ log (1/)) in any dimension
AU - Mustafa, Nabil
AU - Ray, Saurabh
PY - 2007
Y1 - 2007
N2 - Given a set P of n points in Rd and > 0, we consider the problemof constructing weak -nets for P.We show the following: pick a random sample Q of size O(1/ log (1/)) from P. Then, with constant probability, a weak -net of P can be constructed from only the points of Q. This shows that weak -nets in Rd can be computed from a subset of P of size O(1/ log(1/)) with only the constant of proportionality depending on the dimension, unlike all previous work where the size of the subset had the dimension in the exponent of 1/. However, our final weak -nets still have a large size (with the dimension appearing in the exponent of 1/).
AB - Given a set P of n points in Rd and > 0, we consider the problemof constructing weak -nets for P.We show the following: pick a random sample Q of size O(1/ log (1/)) from P. Then, with constant probability, a weak -net of P can be constructed from only the points of Q. This shows that weak -nets in Rd can be computed from a subset of P of size O(1/ log(1/)) with only the constant of proportionality depending on the dimension, unlike all previous work where the size of the subset had the dimension in the exponent of 1/. However, our final weak -nets still have a large size (with the dimension appearing in the exponent of 1/).
KW - Combinatorial geometry
KW - Discrete geometry
KW - Hitting convex sets
KW - Weak epsilon nets
UR - http://www.scopus.com/inward/record.url?scp=35348925348&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=35348925348&partnerID=8YFLogxK
U2 - 10.1145/1247069.1247113
DO - 10.1145/1247069.1247113
M3 - Conference contribution
AN - SCOPUS:35348925348
SN - 1595937056
SN - 9781595937056
T3 - Proceedings of the Annual Symposium on Computational Geometry
SP - 239
EP - 244
BT - Proceedings of the Twenty-third Annual Symposium on Computational Geometry, SCG'07
T2 - 23rd Annual Symposium on Computational Geometry, SCG'07
Y2 - 6 June 2007 through 8 June 2007
ER -