922 search results - page 42 / 185 » Attribute based data sharing with attribute revocation |
IDEAS
2006
IEEE
15 years 3 months ago
2006
IEEE
Histograms are being used as non-parametric selectivity estimators for one-dimensional data. For highdimensional data it is common to either compute onedimensional histograms for ...
VLDB
2005
ACM
15 years 3 months ago
2005
ACM
With the increasing occurrence of temporal and spatial data in present-day database applications, the interval data type is adopted by more and more database systems. For an effic...
SPLST
2003
14 years 11 months ago
2003
Abstract. Nowadays one of the most common formats for storing information is XML. The size of XML documents can be rather large, and they may contain redundant attributes which can...
KDD
1998
ACM
15 years 2 months ago
1998
ACM
We consider the problem of aggregation for uncertain and imprecise data. For such data, we define aggregation operators and use them to provide information on properties and patte...
WSDM
2010
ACM
15 years 7 months ago
2010
ACM
Recent advances in click model have positioned it as an attractive method for representing user preferences in web search and online advertising. Yet, most of the existing works f...