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BTW
2007
Springer
142views Database» more  BTW 2007»
15 years 10 months ago
Algebraic Query Optimization for Distributed Top-k Queries
: Distributed top-k query processing is increasingly becoming an essential functionality in a large number of emerging application classes. This paper addresses the efficient alge...
Thomas Neumann, Sebastian Michel
ICMCS
2006
IEEE
116views Multimedia» more  ICMCS 2006»
15 years 10 months ago
SIKAS: A Scalable Distributed Key Management Scheme for Dynamic Collaborative Groups
The increasing popularity of distributed and collaborative applications prompts the need for secure communication in collaborative groups. Some distributed collaborative key manag...
Jiang Zhang, Jian-Guang Luo, Bin Li, Shiqiang Yang
BDA
2007
15 years 5 months ago
A Framework for Distributed Spatial Indexing in Shared-Nothing Architectures
The paper presents a complete framework for spatial indexing support in a distributed setting. We consider a shared-nothing environment where a set of servers provides independent...
Cédric du Mouza, Witold Litwin, Philippe Ri...
AMAI
2004
Springer
15 years 9 months ago
Approximate Probabilistic Constraints and Risk-Sensitive Optimization Criteria in Markov Decision Processes
The majority of the work in the area of Markov decision processes has focused on expected values of rewards in the objective function and expected costs in the constraints. Althou...
Dmitri A. Dolgov, Edmund H. Durfee
OSDI
2006
ACM
16 years 4 months ago
Ceph: A Scalable, High-Performance Distributed File System
We have developed Ceph, a distributed file system that provides excellent performance, reliability, and scalability. Ceph maximizes the separation between data and metadata manage...
Sage A. Weil, Scott A. Brandt, Ethan L. Miller, Da...