OrderedBits: Efficient ordered (by popcount) enumeration of bits

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This library provides efficient methods to enumerate all elements of a set in order of the population count, or the ordered enumerations of the elements of the powerset of a set. First, the empty set, then all 1-element sets, all 2-element sets, etc. Such enumerations are important for algorithms over unordered data sets. Examples include the travelling salesman problem and the closely related Hamiltonian path problem.


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Versions [RSS] 0.0.0.1, 0.0.0.2, 0.0.0.3, 0.0.1.0, 0.0.1.1, 0.0.1.2, 0.0.2.0
Change log changelog.md
Dependencies base (>=4.7 && <5.0), bits (>=0.4), primitive (>=0.5), vector (>=0.11), vector-algorithms (>=0.6) [details]
Tested with ghc ==8.4.4
License BSD-3-Clause
Copyright Christian Hoener zu Siederdissen, 2014 - 2019
Author Christian Hoener zu Siederdissen
Maintainer [email protected]
Category Data
Home page https://github.com/choener/OrderedBits
Bug tracker https://github.com/choener/OrderedBits/issues
Source repo head: git clone git://github.com/choener/OrderedBits
Uploaded by ChristianHoener at 2019-06-14T15:43:39Z
Distributions LTSHaskell:0.0.2.0, NixOS:0.0.2.0, Stackage:0.0.2.0
Reverse Dependencies 4 direct, 33 indirect [details]
Downloads 6343 total (6 in the last 30 days)
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Status Docs available [build log]
Last success reported on 2019-06-14 [all 1 reports]

Readme for OrderedBits-0.0.2.0

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OrderedBits

The OrderedBits library provides methods to generate unboxed vectors of Ints (and others) ordered by their population count or Hamming distance to the 0 set. In other words, we enumerate the power set of a given input set.

Such an order is important for dynamic programming algorithms for Hamiltonian path problems and the travelling salesman problem.

Contact

Christian Hoener zu Siederdissen
Leipzig University, Leipzig, Germany
[email protected]
http://www.bioinf.uni-leipzig.de/~choener/