JavaEWAH JavaEWAH

Parent	oss-parent
Group	com.googlecode.javaewah
描述	The bit array data structure is implemented in Java as the BitSet class. Unfortunately, this fails to scale without compression. JavaEWAH is a word-aligned compressed variant of the Java bitset class. It uses a 64-bit run-length encoding (RLE) compression scheme. The goal of word-aligned compression is not to achieve the best compression, but rather to improve query processing time. Hence, we try to save CPU cycles, maybe at the expense of storage. However, the EWAH scheme we implemented is always more efficient storage-wise than an uncompressed bitmap (implemented in Java as the BitSet class). Unlike some alternatives, javaewah does not rely on a patented scheme.
Packaging	jar
Size	55.71 KB
文件	pom jar
网址	http://code.google.com/p/javaewah/
发布时间	2013-02-15 22:09

dependencies

Group	Artifact	Version
junit	junit	4.10

developers

lemire

Daniel Lemire

LICEF Research Center

licenses

Apache 2

http://www.apache.org/licenses/LICENSE-2.0.txt