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» Joining Interval Data in Relational Databases
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SIGMOD
2006
ACM
219views Database» more  SIGMOD 2006»
14 years 7 months ago
Modeling skew in data streams
Data stream applications have made use of statistical summaries to reason about the data using nonparametric tools such as histograms, heavy hitters, and join sizes. However, rela...
Flip Korn, S. Muthukrishnan, Yihua Wu
PVLDB
2010
93views more  PVLDB 2010»
13 years 5 months ago
Distributed Threshold Querying of General Functions by a Difference of Monotonic Representation
The goal of a threshold query is to detect all objects whose score exceeds a given threshold. This type of query is used in many settings, such as data mining, event triggering, a...
Guy Sagy, Daniel Keren, Izchak Sharfman, Assaf Sch...
ICDE
2008
IEEE
139views Database» more  ICDE 2008»
14 years 8 months ago
Maintaining Connectivity in Dynamic Multimodal Network Models
Network data models are frequently used as a mechanism to describe the connectivity between spatial features in many emerging GIS applications (location-based services, transporta...
Petko Bakalov, Erik G. Hoel, Wee-Liang Heng, Vassi...
PSD
2004
Springer
126views Database» more  PSD 2004»
14 years 26 days ago
Outlier Protection in Continuous Microdata Masking
Abstract. Masking methods protect data sets against disclosure by perturbing the original values before publication. Masking causes some information loss (masked data are not exact...
Josep Maria Mateo-Sanz, Francesc Sebé, Jose...
SIGMOD
1997
ACM
180views Database» more  SIGMOD 1997»
13 years 11 months ago
Online Aggregation
Aggregation in traditional database systems is performed in batch mode: a query is submitted, the system processes a large volume of data over a long period of time, and, eventual...
Joseph M. Hellerstein, Peter J. Haas, Helen J. Wan...