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» Indexing range sum queries in spatio-temporal databases
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SIGMOD
2001
ACM
104views Database» more  SIGMOD 2001»
14 years 7 months ago
Querying Multi-dimensional Data Indexed Using the Hilbert Space-filling Curve
Mapping to one-dimensional values and then using a onedimensional indexing method has been proposed as a way of indexing multi-dimensional data. Most previous related work uses th...
Jonathan K. Lawder, Peter J. H. King
EDBT
2010
ACM
122views Database» more  EDBT 2010»
14 years 2 months ago
Self-selecting, self-tuning, incrementally optimized indexes
: © Self-selecting, self-tuning, incrementally optimized indexes Goetz Graefe, Harumi Kuno HP Laboratories HPL-2010-24 database index, adaptive, autonomic, query execution In a re...
Goetz Graefe, Harumi A. Kuno
SIGIR
2012
ACM
11 years 10 months ago
To index or not to index: time-space trade-offs in search engines with positional ranking functions
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 ...
Diego Arroyuelo, Senén González, Mau...
ICDT
1999
ACM
72views Database» more  ICDT 1999»
13 years 12 months ago
On the Generation of 2-Dimensional Index Workloads
A large number of database index structures have been proposed over the last two decades, and little consensus has emerged regarding their relative e ectiveness. In order to empir...
Joseph M. Hellerstein, Lisa Hellerstein, George Ko...
CIKM
2010
Springer
13 years 5 months ago
Index structures for efficiently searching natural language text
Many existing indexes on text work at the document granularity and are not effective in answering the class of queries where the desired answer is only a term or a phrase. In this...
Pirooz Chubak, Davood Rafiei