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SIGMOD
2008
ACM
206views Database» more  SIGMOD 2008»
15 years 10 months ago
Ad-hoc aggregations of ranked lists in the presence of hierarchies
A variety of web sites and web based services produce textual lists at varying time granularities ranked according to several criteria. For example, Google Trends produces lists o...
Nilesh Bansal, Sudipto Guha, Nick Koudas
SIGMOD
2005
ACM
166views Database» more  SIGMOD 2005»
15 years 10 months ago
Substructure Similarity Search in Graph Databases
Advanced database systems face a great challenge raised by the emergence of massive, complex structural data in bioinformatics, chem-informatics, and many other applications. The ...
Xifeng Yan, Philip S. Yu, Jiawei Han
PODS
2006
ACM
137views Database» more  PODS 2006»
15 years 10 months ago
Data exchange: computing cores in polynomial time
Data exchange deals with inserting data from one database into another database having a different schema. We study and solve a central computational problem of data exchange, nam...
Georg Gottlob, Alan Nash
ICIAP
2007
ACM
15 years 10 months ago
Natural scenes categorization by hierarchical extraction of typicality patterns
Natural scene categorization of images represents a very useful task for automatic image analysis systems in a wide variety of applications. In the literature, several methods hav...
Alessandro Perina, Marco Cristani, Vittorio Murino
ICSE
2007
IEEE-ACM
15 years 9 months ago
Analysis of a Redundant Architecture for Critical Infrastructure Protection
Critical infrastructures like the power grid are emerging as collection of existing separated systems of different nature which are interconnected together. Their criticality becom...
Alessandro Daidone, Andrea Bondavalli, Paulo Ver&i...