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SIGMOD
2004
ACM
157views Database» more  SIGMOD 2004»
16 years 7 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...
SIGMOD
2003
ACM
116views Database» more  SIGMOD 2003»
16 years 7 months ago
Multimedia streaming in large-scale sensor networks with mobile swarms
Abstract-- Sensor networking technologies have developed very rapidly in the last ten years. In many situations, high quality multimedia streams may be required for providing detai...
Mario Gerla, Kaixin Xu
SIGMOD
2003
ACM
171views Database» more  SIGMOD 2003»
16 years 7 months ago
Adaptive Filters for Continuous Queries over Distributed Data Streams
We consider an environment where distributed data sources continuously stream updates to a centralized processor that monitors continuous queries over the distributed data. Signif...
Chris Olston, Jing Jiang, Jennifer Widom
PODS
2001
ACM
167views Database» more  PODS 2001»
16 years 6 months ago
Querying Websites Using Compact Skeletons
Several commercial applications, such as online comparison shopping and process automation, require integrating information that is scattered across multiple websites or XML docum...
Anand Rajaraman, Jeffrey D. Ullman
PODS
2002
ACM
117views Database» more  PODS 2002»
16 years 6 months ago
Monadic Datalog and the Expressive Power of Languages for Web Information Extraction
Research on information extraction from Web pages (wrapping) has seen much activity in recent times (particularly systems implementations), but little work has been done on formal...
Georg Gottlob, Christoph Koch