91 search results - page 1 / 19 » The Data Stream Space Complexity of Cascaded Norms |
FOCS
2009
IEEE
13 years 11 months ago
2009
IEEE
Abstract— We consider the problem of estimating cascaded aggregates over a matrix presented as a sequence of updates in a data stream. A cascaded aggregate P ◦Q is defined by ...
SODA
2010
ACM
14 years 2 months ago
2010
ACM
We settle the 1-pass space complexity of (1 ? )approximating the Lp norm, for real p with 1 p 2, of a length-n vector updated in a length-m stream with updates to its coordinate...
IM
2006
13 years 4 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...
FOCS
2000
IEEE
13 years 9 months ago
2000
IEEE
In this article, we show several results obtained by combining the use of stable distributions with pseudorandom generators for bounded space. In particular: —We show that, for a...
PODS
2005
ACM
13 years 10 months ago
2005
ACM
Heavy hitters, which are items occurring with frequency above a given threshold, are an important aggregation and summary tool when processing data streams or data warehouses. Hie...