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» Evaluating TOP-K Queries over Business Processes
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SIGMOD
2006
ACM
232views Database» more  SIGMOD 2006»
14 years 10 months ago
To search or to crawl?: towards a query optimizer for text-centric tasks
Text is ubiquitous and, not surprisingly, many important applications rely on textual data for a variety of tasks. As a notable example, information extraction applications derive...
Panagiotis G. Ipeirotis, Eugene Agichtein, Pranay ...
PET
2010
Springer
14 years 1 days ago
Achieving Efficient Query Privacy for Location Based Services
Mobile smartphone users frequently need to search for nearby points of interest from a location based service, but in a way that preserves the privacy of the users' locations...
Femi G. Olumofin, Piotr K. Tysowski, Ian Goldberg,...
ICDE
2010
IEEE
408views Database» more  ICDE 2010»
14 years 5 months ago
Hive - a petabyte scale data warehouse using Hadoop
— The size of data sets being collected and analyzed in the industry for business intelligence is growing rapidly, making traditional warehousing solutions prohibitively expensiv...
Ashish Thusoo, Joydeep Sen Sarma, Namit Jain, Zhen...
WWW
2009
ACM
14 years 10 months ago
Discovering users' specific geo intention in web search
Discovering users' specific and implicit geographic intention in web search can greatly help satisfy users' information needs. We build a geo intent analysis system that...
Xing Yi, Hema Raghavan, Chris Leggetter
SIGMOD
2004
ACM
157views Database» more  SIGMOD 2004»
14 years 10 months ago
Holistic UDAFs at streaming speeds
Many algorithms have been proposed to approximate holistic aggregates, such as quantiles and heavy hitters, over data streams. However, little work has been done to explore what t...
Graham Cormode, Theodore Johnson, Flip Korn, S. Mu...