name: ADPfusion
version: 0.0.1.2
author: Christian Hoener zu Siederdissen, 2011-2012
copyright: Christian Hoener zu Siederdissen, 2011-2012
homepage: http://www.tbi.univie.ac.at/~choener/adpfusion
maintainer: choener@tbi.univie.ac.at
category: Algorithms, Data Structures, Bioinformatics
license: BSD3
license-file: LICENSE
build-type: Simple
stability: experimental
cabal-version: >= 1.6.0
synopsis:
Efficient, high-level dynamic programming.
description:
ADPfusion combines stream-fusion (using the stream interface
provided by the vector library) and type-level programming to
provide highly efficient dynamic programming combinators.
.
From the programmers' viewpoint, ADPfusion behaves very much
like the original ADP implementation
developed by
Robert Giegerich and colleagues, though both combinator
semantics and backtracking are different.
.
The library internals, however, are designed not only to speed
up ADP by a large margin (which this library does), but also to
provide further runtime improvements by allowing the programmer
to switch over to other kinds of data structures with better
time and space behaviour. Most importantly, dynamic programming
tables can be strict, removing indirections present in lazy,
boxed tables.
.
As an example, even rather complex ADP code tends to be
completely optimized to loops that use only unboxed variables
(Int# and others, indexIntArray# and others).
.
Completely novel (compared to ADP), is the idea of allowing
efficient monadic combinators. This facilitates writing code
that performs backtracking, or samples structures
stochastically, among others things.
.
This version is still highly experimental and makes use of
multiple recent improvements in GHC. This is particularly true
for the monadic interface.
.
Long term goals: Outer indices with more than two dimensions,
specialized table design, a combinator library, a library for
computational biology.
.
Two algorithms from the realm of computational biology are
provided as examples on how to write dynamic programming
algorithms using this library:
and
.
.
Changes since 0.0.1.0:
.
* compatibility with GHC 7.4
.
* note: still using fundeps & and TFs together. The TF-only version does not optimize as well (I know why but not yet how to fix it)
Extra-Source-Files:
README.md
ADP/Fusion/QuickCheck.hs
ADP/Fusion/QuickCheck/Arbitrary.hs
library
build-depends:
base >= 4 && < 5,
primitive == 0.4.* ,
vector == 0.9.* ,
PrimitiveArray == 0.2.2.0
exposed-modules:
ADP.Fusion
ADP.Fusion.Monadic
ADP.Fusion.Monadic.Internal
ghc-options:
-O2 -funbox-strict-fields
source-repository head
type: git
location: git://github.com/choener/ADPfusion