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SWAT
2004
Springer
78views Algorithms» more  SWAT 2004»
16 years 16 days ago
Online Maintenance of k-Medians and k-Covers on a Line
The standard dynamic programming solution to finding k-medians on a line with n nodes requires O(kn2 ) time. Dynamic programming speedup techniques, e.g., use of the quadrangle i...
Rudolf Fleischer, Mordecai J. Golin, Yan Zhang
VLDB
2004
ACM
124views Database» more  VLDB 2004»
16 years 15 days ago
Data Sharing Through Query Translation in Autonomous Sources
We consider the problem of data sharing between autonomous data sources in an environment where constraints cannot be placed on the shared contents of sources. Our solutions rely ...
Anastasios Kementsietsidis, Marcelo Arenas
VLDB
2004
ACM
134views Database» more  VLDB 2004»
16 years 15 days ago
Memory-Limited Execution of Windowed Stream Joins
We address the problem of computing approximate answers to continuous sliding-window joins over data streams when the available memory may be insufficient to keep the entire join...
Utkarsh Srivastava, Jennifer Widom
ICDS
2010
IEEE
16 years 15 days ago
Towards Learning Domain Ontology from Legacy Documents
—Learning ontology from text is a challenge in knowledge engineering research and practice. Learning relations between concepts is even more difficult work. However, when conside...
Yijian Wu, Shaolei Zhang, Wenyun Zhao
ANSS
2003
IEEE
16 years 14 days ago
An ns-based Bluetooth Topology Construction Simulation Environment
Bluetooth is an emerging technology in wireless applications, and many related issues are yet to be explored both in academia and industry. Because of the complexity and the dynam...
Chia-Jui Hsu, Yuh-Jzer Joung
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