47 search results - page 2 / 10 » Estimating Hybrid Frequency Moments of Data Streams |
CORR
2011
Springer
13 years 13 days ago
2011
Springer
We present an algorithm for computing Fp, the pth moment of an n-dimensional frequency vector of a data stream, for p > 2, to within 1 ± factors, ∈ (0, 1] with high constant...
FOCS
2008
IEEE
13 years 12 months ago
2008
IEEE
We consider the read/write streams model, an extension of the standard data stream model in which an algorithm can create and manipulate multiple read/write streams in addition to...
STOC
2005
ACM
14 years 5 months ago
2005
ACM
We give a 1-pass ~O(m1-2/k )-space algorithm for computing the k-th frequency moment of a data stream for any real k > 2. Together with the lower bounds of [1, 2, 4], this reso...
ICALP
2009
Springer
14 years 5 months ago
2009
Springer
Estimating frequency moments and Lp distances are well studied problems in the adversarial data stream model and tight space bounds are known for these two problems. There has been...
IM
2006
13 years 5 months ago
2006
We consider the problem of computing information theoretic functions such as entropy on a data stream, using sublinear space. Our first result deals with a measure we call the &quo...