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VLDB
1997
ACM
66views Database» more  VLDB 1997»
15 years 7 months ago
A One-Pass Algorithm for Accurately Estimating Quantiles for Disk-Resident Data
The cpquantile of an ordered sequenceof data values is the element with rank ‘pn, where n is the total number of values. Accurate estimates of quantiles are required for the sol...
Khaled Alsabti, Sanjay Ranka, Vineet Singh
IPPS
1994
IEEE
15 years 7 months ago
Parallel Evaluation of a Parallel Architecture by Means of Calibrated Emulation
A parallel transputer-based emulator has been developed to evaluate the DDM--ahighlyparallel virtual shared memory architecture. The emulator provides performance results of a har...
Henk L. Muller, Paul W. A. Stallard, David H. D. W...
MICRO
1994
IEEE
99views Hardware» more  MICRO 1994»
15 years 7 months ago
Data relocation and prefetching for programs with large data sets
Numerical applications frequently contain nested loop structures that process large arrays of data. The execution of these loop structures often produces memory preference pattern...
Yoji Yamada, John Gyllenhall, Grant Haab, Wen-mei ...
ICS
1994
Tsinghua U.
15 years 7 months ago
Compiler and runtime support for out-of-core HPF programs
This paper describes the design of a compiler which can translate out-of-core programs written in a data parallel language like HPF. Such a compiler is required for compiling larg...
Rajeev Thakur, Rajesh Bordawekar, Alok N. Choudhar...
IGIS
1994
145views GIS» more  IGIS 1994»
15 years 7 months ago
Approximations for a Multi-Step Processing of Spatial Joins
The basic concept for processing spatial joins consists of two steps: First, the spatial join is performed on the minimum bounding rectangles of the objects by using a spatial acce...
Thomas Brinkhoff, Hans-Peter Kriegel