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SIGMOD
2005
ACM
100views Database» more  SIGMOD 2005»
14 years 7 months ago
Events on the edge
The emergence of large-scale receptor-based systems has enabled applications to execute complex business logic over data generated from monitoring the physical world. An important...
Shariq Rizvi, Shawn R. Jeffery, Sailesh Krishnamur...
PODS
2002
ACM
117views Database» more  PODS 2002»
14 years 7 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
PODS
2002
ACM
138views Database» more  PODS 2002»
14 years 7 months ago
Fast Algorithms For Hierarchical Range Histogram Construction
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
Sudipto Guha, Nick Koudas, Divesh Srivastava
PODS
2005
ACM
99views Database» more  PODS 2005»
14 years 7 months ago
XML type checking with macro tree transducers
MSO logic on unranked trees has been identified as a convenient theoretical framework for reasoning about expressiveness and implementations of practical XML query languages. As a...
Sebastian Maneth, Alexandru Berlea, Thomas Perst, ...
EDBT
2006
ACM
157views Database» more  EDBT 2006»
14 years 7 months ago
Caching Complementary Space for Location-Based Services
In this paper, we propose a novel client-side, multi-granularity caching scheme, called "Complementary Space Caching" (CS caching), for location-based services in mobile ...
Ken C. K. Lee, Wang-Chien Lee, Baihua Zheng, Jianl...