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SIGIR
2012
ACM
11 years 7 months ago
2012
ACM
Positional ranking functions, widely used in web search engines, improve result quality by exploiting the positions of the query terms within documents. However, it is well known ...
AAECC
2001
Springer
13 years 9 months ago
2001
Springer
A projective multiset is a collection of projective points, which are not necessarily distinct. A linear code can be represented as a projective multiset, by taking the columns of ...
PODS
2009
ACM
14 years 5 months ago
2009
ACM
The problem of finding heavy hitters and approximating the frequencies of items is at the heart of many problems in data stream analysis. It has been observed that several propose...
KDD
2007
ACM
14 years 5 months ago
2007
ACM
We briefly survey several privacy compromises in published datasets, some historical and some on paper. An inspection of these suggests that the problem lies with the nature of the...
FOCS
2002
IEEE
13 years 9 months ago
2002
IEEE
Randomization is vital in cryptography: secret keys should be randomly generated and most cryptographic primitives (e.g., encryption) must be probabilistic. As a bstraction, it is...