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critbit-kd

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  Analyzed 12 months ago

Critical Bit tree for k-dimensional or arbitrary length keys

22.7K lines of code

1 current contributors

about 1 year since last commit

1 users on Open Hub

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Mostly written in Java
Licenses: No declared licenses
Tags critbittree index indexing java multi-dimensional multidimensional trie

qb4j

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  Analyzed 12 months ago

qb4j (pronounced 'cube for j') is the first open source multi-dimensional logging framework for Java coupled with an OLAP analytical platform. qb4j doesn't create log files. It creates log cubes (or cube logs).

69 lines of code

0 current contributors

almost 14 years since last commit

0 users on Open Hub

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Mostly written in Java
Licenses: No declared licenses
Tags analysis analytics java log logging multi-dimensional multidimensional olap

PH-Tree

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  Analyzed 12 months ago

The PH-Tree is a multi-dimensional spatial index structure. It is a 'trie' version of a quadtree. Properties: no rebalancing, ever. Depth limited to 64 nodes. Fast updates, window queries and kNN queries. Scales very well with large datasets (10M+) and prefers clustered data over evenly distributed ... [More] data. PDFs with a description can be found in the source code. [Less]

47.4K lines of code

2 current contributors

over 1 year since last commit

0 users on Open Hub

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0.0
 
0 Reviews
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Mostly written in Java
Licenses: apache_2
Tags index indexing indexstructure java kdtree knn multi-dimensional multidimensional nearestneighbor nearestneighborssearch quadtree rangequeries 4 more...