Sciweavers

3480 search results - page 416 / 696
» A New Era of Performance Evaluation
Sort
View
CHI
2005
ACM
16 years 7 months ago
Resizing beyond widgets: object resizing techniques for immersive virtual environments
The most common technique for resizing 3D objects in virtual environments is the use of 3D widgets. However, such techniques often exhibit usability problems due to difficulties i...
John F. Lucas, Ji-Sun Kim, Doug A. Bowman
VLDB
2003
ACM
123views Database» more  VLDB 2003»
16 years 7 months ago
A case for fractured mirrors
The Decomposition Storage Model (DSM) vertically partitions all attributes of a given relation. DSM has excellent I/O behavior when the number of attributes touched in the query i...
Ravishankar Ramamurthy, David J. DeWitt, Qi Su
EDBT
2004
ACM
163views Database» more  EDBT 2004»
16 years 6 months ago
Energy-Conserving Air Indexes for Nearest Neighbor Search
A location-based service (LBS) provides information based on the location information specified in a query. Nearest-neighbor (NN) search is an important class of queries supported ...
Baihua Zheng, Jianliang Xu, Wang-Chien Lee, Dik Lu...
MOBIHOC
2002
ACM
16 years 6 months ago
Directional virtual carrier sensing for directional antennas in mobile ad hoc networks
This paper presents a new carrier sensing mechanism called DVCS (Directional Virtual Carrier Sensing) for wireless communication using directional antennas. DVCS does not require ...
Mineo Takai, Jay Martin, Rajive Bagrodia, Aifeng R...
141
Voted
MOBIHOC
2003
ACM
16 years 6 months ago
Worst-Case optimal and average-case efficient geometric ad-hoc routing
In this paper we present GOAFR, a new geometric ad-hoc routing algorithm combining greedy and face routing. We evaluate this algorithm by both rigorous analysis and comprehensive ...
Fabian Kuhn, Roger Wattenhofer, Aaron Zollinger