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repo1.maven.org : com.googlecode.javaewah:JavaEWAH
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.
Registry
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Source
- Documentation
- JSON
- codemeta.json
purl: pkg:maven/com.googlecode.javaewah/JavaEWAH
Keywords:
bitmap-indexes
, bitset
, ewah
, java
License: Apache-2.0
Latest release: almost 3 years ago
First release: about 14 years ago
Namespace: com.googlecode.javaewah
Dependent packages: 97
Dependent repositories: 396
Stars: 551 on GitHub
Forks: 147 on GitHub
Docker dependents: 2,554
Docker downloads: 1,350,045,789
See more repository details: repos.ecosyste.ms
Funding links: https://github.com/sponsors/lemire
Last synced: 22 days ago