Sciweavers

3814 search results - page 631 / 763
» Extensible Information Brokers
Sort
View
EDBT
2006
ACM
105views Database» more  EDBT 2006»
16 years 7 months ago
HASE: A Hybrid Approach to Selectivity Estimation for Conjunctive Predicates
Current methods for selectivity estimation fall into two broad categories, synopsis-based and sampling-based. Synopsis-based methods, such as histograms, incur minimal overhead at ...
Xiaohui Yu, Nick Koudas, Calisto Zuzarte
189
Voted
EDBT
2008
ACM
137views Database» more  EDBT 2008»
16 years 7 months ago
Synthesizing structured text from logical database subsets
In the classical database world, information access has been based on a paradigm that involves structured, schema-aware, queries and tabular answers. In the current environment, h...
Alkis Simitsis, Georgia Koutrika, Yannis Alexandra...
185
Voted
EDBT
2008
ACM
167views Database» more  EDBT 2008»
16 years 7 months ago
HISSCLU: a hierarchical density-based method for semi-supervised clustering
In situations where class labels are known for a part of the objects, a cluster analysis respecting this information, i.e. semi-supervised clustering, can give insight into the cl...
Christian Böhm, Claudia Plant
MOBISYS
2007
ACM
16 years 6 months ago
Vehicular opportunistic communication under the microscope
We consider the problem of providing vehicular Internet access using roadside 802.11 access points. We build on previous work in this area [18, 8, 5, 11] with an extensive experim...
David Hadaller, Srinivasan Keshav, Tim Brecht, Shu...
MOBIHOC
2008
ACM
16 years 6 months ago
Localized distance-sensitive service discovery in wireless sensor networks
In this paper, we identify a new problem in wireless sensor networks, distance sensitive service discovery, where nearby or closest service selection guarantee is expected. We pro...
Xu Li, Nicola Santoro, Ivan Stojmenovic