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SIGMOD
2001
ACM
213views Database» more  SIGMOD 2001»
14 years 10 months ago
Bit-Sliced Index Arithmetic
The bit-sliced index (BSI) was originally defined in [ONQ97]. The current paper introduces the concept of BSI arithmetic. For any two BSI's X and Y on a table T, we show how ...
Denis Rinfret, Patrick E. O'Neil, Elizabeth J. O'N...
PODS
2008
ACM
170views Database» more  PODS 2008»
14 years 10 months ago
Answering aggregate queries in data exchange
Data exchange, also known as data translation, has been extensively investigated in recent years. One main direction of research has focused on the semantics and the complexity of...
Foto N. Afrati, Phokion G. Kolaitis
EDBT
2006
ACM
179views Database» more  EDBT 2006»
14 years 10 months ago
TrajPattern: Mining Sequential Patterns from Imprecise Trajectories of Mobile Objects
Abstract. Mobile objects have become ubiquitous in our everyday lives, ranging from cellular phones to sensors, therefore, analyzing and mining mobile data becomes an interesting p...
Jiong Yang, Meng Hu
ICSE
2005
IEEE-ACM
14 years 10 months ago
Automatic generation and maintenance of correct spreadsheets
Existing spreadsheet systems allow users to change cells arbitrarily, which is a major source of spreadsheet errors. We propose a system that prevents errors in spreadsheets by re...
Martin Erwig, Robin Abraham, Irene Cooperstein, St...
ICDE
2010
IEEE
428views Database» more  ICDE 2010»
14 years 9 months ago
Supporting Top-K Keyword Search in XML Databases
Keyword search is considered to be an effective information discovery method for both structured and semistructured data. In XML keyword search, query semantics is based on the con...
Liang Jeff Chen, Yannis Papakonstantinou