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ICASSP
2011
IEEE
14 years 1 months ago
Microphone position optimization for planar superdirective beamforming
The performance of a fixed beamformer highly depends on the position of the microphones in the array. In this paper, different heuristic optimisation approaches for arbitrary pla...
Ina Kodrasi, Thomas Rohdenburg, Simon Doclo
VLDB
2001
ACM
66views Database» more  VLDB 2001»
15 years 2 months ago
An Evaluation of Generic Bulk Loading Techniques
Bulk loading refers to the process of creating an index from scratch for a given data set. This problem is well understood for B-trees, but so far, non-traditional index structure...
Jochen Van den Bercken, Bernhard Seeger
SIGMOD
1996
ACM
116views Database» more  SIGMOD 1996»
15 years 1 months ago
Optimizing Queries over Multimedia Repositories
Repositories of multimedia objects having multiple types of attributes e.g., image, text are becoming increasingly common. A selection on these attributes will typically produce n...
Surajit Chaudhuri, Luis Gravano
FAST
2009
14 years 7 months ago
Spyglass: Fast, Scalable Metadata Search for Large-Scale Storage Systems
The scale of today's storage systems has made it increasingly difficult to find and manage files. To address this, we have developed Spyglass, a file metadata search system t...
Andrew W. Leung, Minglong Shao, Timothy Bisson, Sh...
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ITEE
2007
14 years 11 months ago
Simulation and Optimization of Habitat Network Permeability
— Landscape fragmentation is a major threat to a lot of wildlife species with a large spatial activity range. To ease the dispersal through the landscape, a lot of different meas...
Jens Finke, Michael Sonnenschein