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JASIS
2000
120views more  JASIS 2000»
15 years 1 months ago
Probabilistic datalog: Implementing logical information retrieval for advanced applications
In the logical approach to information retrieval (IR), retrieval is considered as uncertain inference. Whereas classical IR models are based on propositional logic, we combine Dat...
Norbert Fuhr
SIGMOD
2006
ACM
138views Database» more  SIGMOD 2006»
16 years 1 months ago
B-tree indexes for high update rates
ct In some applications, data capture dominates query processing. For example, monitoring moving objects often requires more insertions and updates than queries. Data gathering usi...
Goetz Graefe
146
Voted
SIGMOD
1997
ACM
134views Database» more  SIGMOD 1997»
15 years 5 months ago
Similarity-Based Queries for Time Series Data
We study similarity queries for time series data where similarity is defined in terms of a set of linear transformations on the Fourier series representation of a sequence. We ha...
Davood Rafiei, Alberto O. Mendelzon
ICDE
1999
IEEE
134views Database» more  ICDE 1999»
16 years 2 months ago
On Similarity-Based Queries for Time Series Data
We study similarity queries for time series data where similarity is defined in terms of a set of linear transformations on the Fourier series representation of a sequence. We hav...
Davood Rafiei
ICDE
2011
IEEE
274views Database» more  ICDE 2011»
14 years 5 months ago
SQPR: Stream query planning with reuse
—When users submit new queries to a distributed stream processing system (DSPS), a query planner must allocate physical resources, such as CPU cores, memory and network bandwidth...
Evangelia Kalyvianaki, Wolfram Wiesemann, Quang Hi...