2889 search results - page 453 / 578 » Querying Structured Hyperdocuments |
SIGMOD
2005
ACM
14 years 8 months ago
2005
ACM
In recent years there has been considerable research on automated selection of physical design in database systems. In current solutions, candidate access paths are heuristically ...
SIGMOD
2003
ACM
14 years 8 months ago
2003
ACM
One of the critical deficiencies of SQL is lack of support for ndimensional array-based computations which are frequent in OLAP environments. Relational OLAP (ROLAP) applications ...
EDBT
2004
ACM
14 years 8 months ago
2004
ACM
In this paper we present HOPI, a new connection index for XML documents based on the concept of the 2?hop cover of a directed graph introduced by Cohen et al. In contrast to most o...
SODA
2010
ACM
14 years 5 months ago
2010
ACM
We give an O(n lg n)-time algorithm for counting the number of inversions in a permutation on n elements. This improves a long-standing previous bound of O(n lg n/ lg lg n) that ...
IPPS
2009
IEEE
14 years 2 months ago
2009
IEEE
Graph-theoretic abstractions are extensively used to analyze massive data sets. Temporal data streams from socioeconomic interactions, social networking web sites, communication t...