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GIS
2006
ACM
14 years 8 months ago
Query optimizer for spatial join operations
This paper presents a query optimizer module based on cost estimation that chooses the best filtering step algorithm to perform a specific spatial join operation. A set of express...
Cirano Iochpe, João Luiz Dihl Comba, Miguel...
MSS
2007
IEEE
76views Hardware» more  MSS 2007»
14 years 1 months ago
Implementing and Evaluating Security Controls for an Object-Based Storage System
This paper presents the implementation and performance evaluation of a real, secure object-based storage system compliant to the TIO OSD standard. In contrast to previous work, ou...
Zhongying Niu, Ke Zhou, Dan Feng, Hong Jiang, Fran...
OSDI
2008
ACM
14 years 8 months ago
Live Migration of Direct-Access Devices
Virtual machine migration greatly aids management by allowing flexible provisioning of resources and decommissioning of hardware for maintenance. However, efforts to improve netwo...
Asim Kadav, Michael M. Swift
HOTOS
1999
IEEE
13 years 12 months ago
Flexible Access Control using IPC Redirection
We present a mechanism for inter-process communication (IPC) redirection that enables efficient and flexible access control for micro-kernel systems. In such systems, services are...
Trent Jaeger, Kevin Elphinstone, Jochen Liedtke, V...
COMCOM
2010
90views more  COMCOM 2010»
13 years 7 months ago
The room shortage problem of tree-based ZigBee/IEEE 802.15.4 wireless networks
A number of IEEE 802.15.4 devices can form a tree topology as proposed by ZigBee specification. The ability to confine the shape and extent of the tree serves as the basis for add...
Li-Hsing Yen, Wei-Ting Tsai