commit 59ab00e9c2b50c269b12a153cc8c654d68b5ac29
Author: Mahdi Dibaiee <mdibaiee@aol.com>
Date:   Sun Jul 17 16:53:13 2016 +0430

    initial commit, still work in progress

diff --git a/.stack-work/downloaded/4bcc5e87765a259958ded16b9e26c1e7552fd59926eb091b838d968d3cd9dda0 b/.stack-work/downloaded/4bcc5e87765a259958ded16b9e26c1e7552fd59926eb091b838d968d3cd9dda0
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@@ -0,0 +1 @@
+Subproject commit 42a88fbcb6bd1d2c4dc18fae5e962bd34fb316a1
diff --git a/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/doc/hmatrix-0.18.0.0/LICENSE b/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/doc/hmatrix-0.18.0.0/LICENSE
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+++ b/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/doc/hmatrix-0.18.0.0/LICENSE
@@ -0,0 +1,26 @@
+Copyright (c) 2006-2014 Alberto Ruiz and other contributors
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of Alberto Ruiz nor the names of other contributors may
+      be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
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diff --git a/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/lib/x86_64-osx-ghc-7.10.3/hmatrix-0.18.0.0-7PZ22o8olec0bnj98RI2Zu/libHShmatrix-0.18.0.0-7PZ22o8olec0bnj98RI2Zu.a b/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/lib/x86_64-osx-ghc-7.10.3/hmatrix-0.18.0.0-7PZ22o8olec0bnj98RI2Zu/libHShmatrix-0.18.0.0-7PZ22o8olec0bnj98RI2Zu.a
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diff --git a/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/pkgdb/hmatrix-0.18.0.0-1d8fa7590dc64d386197097d7b3b924f.conf b/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/pkgdb/hmatrix-0.18.0.0-1d8fa7590dc64d386197097d7b3b924f.conf
new file mode 100644
index 0000000..f894bca
--- /dev/null
+++ b/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/pkgdb/hmatrix-0.18.0.0-1d8fa7590dc64d386197097d7b3b924f.conf
@@ -0,0 +1,53 @@
+name: hmatrix
+version: 0.18.0.0
+id: hmatrix-0.18.0.0-1d8fa7590dc64d386197097d7b3b924f
+key: hmatr_7PZ22o8olec0bnj98RI2Zu
+license: BSD3
+maintainer: Alberto Ruiz
+stability: provisional
+homepage: https://github.com/albertoruiz/hmatrix
+synopsis: Numeric Linear Algebra
+description:
+    Linear systems, matrix decompositions, and other numerical computations based on BLAS and LAPACK.
+    .
+    Standard interface: "Numeric.LinearAlgebra".
+    .
+    Safer interface with statically checked dimensions: "Numeric.LinearAlgebra.Static".
+    .
+    Code examples: <http://dis.um.es/~alberto/hmatrix/hmatrix.html>
+category: Math
+author: Alberto Ruiz
+exposed: True
+exposed-modules:
+    Numeric.LinearAlgebra Numeric.LinearAlgebra.Devel
+    Numeric.LinearAlgebra.Data Numeric.LinearAlgebra.HMatrix
+    Numeric.LinearAlgebra.Static
+hidden-modules: Internal.Vector Internal.Devel Internal.Vectorized
+                Internal.Matrix Internal.Foreign Internal.ST Internal.IO
+                Internal.Element Internal.Conversion Internal.LAPACK
+                Internal.Numeric Internal.Algorithms Internal.Random
+                Internal.Container Internal.Sparse Internal.Convolution
+                Internal.Chain Numeric.Vector Internal.CG Numeric.Matrix
+                Internal.Util Internal.Modular Internal.Static
+trusted: False
+import-dirs: /Users/mahdi/Documents/Workshop/sibe/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/lib/x86_64-osx-ghc-7.10.3/hmatrix-0.18.0.0-7PZ22o8olec0bnj98RI2Zu
+library-dirs: /Users/mahdi/Documents/Workshop/sibe/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/lib/x86_64-osx-ghc-7.10.3/hmatrix-0.18.0.0-7PZ22o8olec0bnj98RI2Zu
+              /opt/local/lib/ /usr/local/lib/
+data-dir: /Users/mahdi/Documents/Workshop/sibe/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/share/x86_64-osx-ghc-7.10.3/hmatrix-0.18.0.0
+hs-libraries: HShmatrix-0.18.0.0-7PZ22o8olec0bnj98RI2Zu
+extra-libraries:
+    blas lapack
+include-dirs: /opt/local/include/ /usr/local/include/
+depends:
+    array-0.5.1.0-960bf9ae8875cc30355e086f8853a049
+    base-4.8.2.0-cc43d8e06aa74e9c4c0132becc49ee25
+    binary-0.7.5.0-bb2dcbe8d4c53898daa6ddc1a04a77a3
+    bytestring-0.10.6.0-04b5cc1d05f993b3b016543ca2863add
+    deepseq-1.4.1.1-8eec8f9bea2efc2500f63544ec6ca569
+    random-1.1-7b52ac9c2fd71a09f8ea932648ebfada
+    split-0.2.3.1-6d0063c12972868a1e069995047d6884
+    storable-complex-0.2.2-5d724e6255914e391bee90b30a4cef13
+    vector-0.11.0.0-3c85dee988950ea88ba0cba31473444f
+frameworks: Accelerate
+haddock-interfaces: /Users/mahdi/Documents/Workshop/sibe/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/doc/hmatrix-0.18.0.0/hmatrix.haddock
+haddock-html: /Users/mahdi/Documents/Workshop/sibe/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/doc/hmatrix-0.18.0.0
diff --git a/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/pkgdb/package.cache b/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/pkgdb/package.cache
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diff --git a/.stack-work/logs/MonadRandom-0.4.2.3.log b/.stack-work/logs/MonadRandom-0.4.2.3.log
new file mode 100644
index 0000000..6e0f511
--- /dev/null
+++ b/.stack-work/logs/MonadRandom-0.4.2.3.log
@@ -0,0 +1,38 @@
+Configuring MonadRandom-0.4.2.3...
+Building MonadRandom-0.4.2.3...
+Preprocessing library MonadRandom-0.4.2.3...
+[1 of 2] Compiling Control.Monad.Random.Class ( Control/Monad/Random/Class.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Control/Monad/Random/Class.o )
+[2 of 2] Compiling Control.Monad.Random ( Control/Monad/Random.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Control/Monad/Random.o )
+
+Control/Monad/Random.hs:54:1: Warning:
+    Module ‘Control.Monad.Error’ is deprecated:
+      Use Control.Monad.Except instead
+
+Control/Monad/Random.hs:70:1: Warning:
+    The import of ‘Data.Monoid’ is redundant
+      except perhaps to import instances from ‘Data.Monoid’
+    To import instances alone, use: import Data.Monoid()
+
+Control/Monad/Random.hs:206:11: Warning:
+    In the use of type constructor or class ‘Error’
+    (imported from Control.Monad.Error, but defined in Control.Monad.Trans.Error):
+    Deprecated: "Use Control.Monad.Trans.Except instead"
+
+Control/Monad/Random.hs:206:51: Warning:
+    In the use of type constructor or class ‘ErrorT’
+    (imported from Control.Monad.Error, but defined in Control.Monad.Trans.Error):
+    Deprecated: "Use Control.Monad.Trans.Except instead"
+
+Control/Monad/Random.hs:251:11: Warning:
+    In the use of type constructor or class ‘Error’
+    (imported from Control.Monad.Error, but defined in Control.Monad.Trans.Error):
+    Deprecated: "Use Control.Monad.Trans.Except instead"
+
+Control/Monad/Random.hs:251:53: Warning:
+    In the use of type constructor or class ‘ErrorT’
+    (imported from Control.Monad.Error, but defined in Control.Monad.Trans.Error):
+    Deprecated: "Use Control.Monad.Trans.Except instead"
+In-place registering MonadRandom-0.4.2.3...
+Installing library in
+/Users/mahdi/.stack/snapshots/x86_64-osx/lts-6.7/7.10.3/lib/x86_64-osx-ghc-7.10.3/MonadRandom-0.4.2.3-4XRZwPV1MjC69wlAshwzrw
+Registering MonadRandom-0.4.2.3...
diff --git a/.stack-work/logs/hmatrix-0.18.0.0.log b/.stack-work/logs/hmatrix-0.18.0.0.log
new file mode 100644
index 0000000..9f53431
--- /dev/null
+++ b/.stack-work/logs/hmatrix-0.18.0.0.log
@@ -0,0 +1,80 @@
+Preprocessing library hmatrix-0.18.0.0...
+[ 1 of 28] Compiling Internal.Vector  ( src/Internal/Vector.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Vector.o )
+[ 2 of 28] Compiling Internal.Devel   ( src/Internal/Devel.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Devel.o )
+[ 3 of 28] Compiling Internal.Vectorized ( src/Internal/Vectorized.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Vectorized.o )
+[ 4 of 28] Compiling Internal.Matrix  ( src/Internal/Matrix.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Matrix.o )
+[ 5 of 28] Compiling Internal.Conversion ( src/Internal/Conversion.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Conversion.o )
+[ 6 of 28] Compiling Internal.Foreign ( src/Internal/Foreign.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Foreign.o )
+[ 7 of 28] Compiling Internal.ST      ( src/Internal/ST.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/ST.o )
+[ 8 of 28] Compiling Internal.Element ( src/Internal/Element.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Element.o )
+[ 9 of 28] Compiling Internal.IO      ( src/Internal/IO.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/IO.o )
+[10 of 28] Compiling Internal.LAPACK  ( src/Internal/LAPACK.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/LAPACK.o )
+[11 of 28] Compiling Internal.Numeric ( src/Internal/Numeric.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Numeric.o )
+[12 of 28] Compiling Internal.Sparse  ( src/Internal/Sparse.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Sparse.o )
+[13 of 28] Compiling Numeric.LinearAlgebra.Devel ( src/Numeric/LinearAlgebra/Devel.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Numeric/LinearAlgebra/Devel.o )
+[14 of 28] Compiling Internal.Algorithms ( src/Internal/Algorithms.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Algorithms.o )
+[15 of 28] Compiling Internal.Container ( src/Internal/Container.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Container.o )
+[16 of 28] Compiling Internal.Random  ( src/Internal/Random.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Random.o )
+[17 of 28] Compiling Internal.Convolution ( src/Internal/Convolution.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Convolution.o )
+[18 of 28] Compiling Internal.Chain   ( src/Internal/Chain.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Chain.o )
+[19 of 28] Compiling Numeric.Vector   ( src/Numeric/Vector.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Numeric/Vector.o )
+[20 of 28] Compiling Internal.CG      ( src/Internal/CG.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/CG.o )
+[21 of 28] Compiling Numeric.Matrix   ( src/Numeric/Matrix.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Numeric/Matrix.o )
+[22 of 28] Compiling Internal.Util    ( src/Internal/Util.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Util.o )
+[23 of 28] Compiling Internal.Modular ( src/Internal/Modular.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Modular.o )
+[24 of 28] Compiling Numeric.LinearAlgebra.Data ( src/Numeric/LinearAlgebra/Data.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Numeric/LinearAlgebra/Data.o )
+[25 of 28] Compiling Numeric.LinearAlgebra ( src/Numeric/LinearAlgebra.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Numeric/LinearAlgebra.o )
+[26 of 28] Compiling Numeric.LinearAlgebra.HMatrix ( src/Numeric/LinearAlgebra/HMatrix.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Numeric/LinearAlgebra/HMatrix.o )
+[27 of 28] Compiling Internal.Static  ( src/Internal/Static.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Internal/Static.o )
+[28 of 28] Compiling Numeric.LinearAlgebra.Static ( src/Numeric/LinearAlgebra/Static.hs, .stack-work/dist/x86_64-osx/Cabal-1.22.5.0/build/Numeric/LinearAlgebra/Static.o )
+clang: warning: -O4 is equivalent to -O3
+clang: warning: -O4 is equivalent to -O3
+clang: warning: -O4 is equivalent to -O3
+
+src/Internal/C/vector-aux.c:574:14:
+     warning: absolute value function 'abs' given an argument of type 'const int64_t' (aka 'const long long') but has parameter of type 'int' which may cause truncation of value [-Wabsolute-value]
+            OP(3,abs)
+                 ^
+
+src/Internal/C/vector-aux.c:574:14:
+     note: use function 'labs' instead
+            OP(3,abs)
+                 ^~~
+                 labs
+
+src/Internal/C/vector-aux.c:504:53:  note: expanded from macro 'OP'
+#define OP(C,F) case C: { for(k=0;k<xn;k++) rp[k] = F(xp[k]); OK }
+                                                    ^
+
+src/Internal/C/vector-aux.c:941:9:
+     warning: randomVector is not thread-safe in OSX and FreeBSD [-W#pragma-messages]
+#pragma message "randomVector is not thread-safe in OSX and FreeBSD"
+        ^
+2 warnings generated.
+clang: warning: -O4 is equivalent to -O3
+
+src/Internal/C/vector-aux.c:574:14:
+     warning: absolute value function 'abs' given an argument of type 'const int64_t' (aka 'const long long') but has parameter of type 'int' which may cause truncation of value [-Wabsolute-value]
+            OP(3,abs)
+                 ^
+
+src/Internal/C/vector-aux.c:574:14:
+     note: use function 'labs' instead
+            OP(3,abs)
+                 ^~~
+                 labs
+
+src/Internal/C/vector-aux.c:504:53:  note: expanded from macro 'OP'
+#define OP(C,F) case C: { for(k=0;k<xn;k++) rp[k] = F(xp[k]); OK }
+                                                    ^
+
+src/Internal/C/vector-aux.c:941:9:
+     warning: randomVector is not thread-safe in OSX and FreeBSD [-W#pragma-messages]
+#pragma message "randomVector is not thread-safe in OSX and FreeBSD"
+        ^
+2 warnings generated.
+ld: warning: directory not found for option '-L/opt/local/lib/'
+In-place registering hmatrix-0.18.0.0...
+Installing library in
+/Users/mahdi/Documents/Workshop/sibe/.stack-work/install/x86_64-osx/lts-6.7/7.10.3/lib/x86_64-osx-ghc-7.10.3/hmatrix-0.18.0.0-7PZ22o8olec0bnj98RI2Zu
+Registering hmatrix-0.18.0.0...
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..fc03544
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright Author name here (c) 2016
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Author name here nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
index 0000000..9a994af
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/app/Main b/app/Main
new file mode 100755
index 0000000..3e54178
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diff --git a/app/Main.hi b/app/Main.hi
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index 0000000..d7870fe
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diff --git a/app/Main.hs b/app/Main.hs
new file mode 100644
index 0000000..4dd4ba5
--- /dev/null
+++ b/app/Main.hs
@@ -0,0 +1,27 @@
+module Main where
+
+import Lib
+import Numeric.LinearAlgebra
+import Data.List
+import Debug.Trace
+
+-- 1x2
+-- 2x3 + 1x3
+-- 3x1 + 1x1
+
+main :: IO ()
+main =
+  let learning_rate = 0.5
+      ih = randomLayer 0 (2, 10)
+      ho = randomLayer 1 (10, 1)
+      network = ih :- O ho
+      inputs = [vector [0, 1], vector [1, 1], vector [1, 0], vector [0, 0]]
+
+      -- result = forward input network
+
+      labels = [vector [1], vector [0], vector [1], vector [0]]
+
+      updated_network = session inputs network labels 0.01 10000
+      -- updated_network = train (head inputs) network (head labels) 0.5
+      results = map (\x -> forward x updated_network) inputs
+  in print results
diff --git a/app/Main.o b/app/Main.o
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diff --git a/sibe.cabal b/sibe.cabal
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index 0000000..2c3ff4a
--- /dev/null
+++ b/sibe.cabal
@@ -0,0 +1,41 @@
+name:                sibe
+version:             0.1.0.0
+synopsis:            Initial project template from stack
+description:         Please see README.md
+homepage:            https://github.com/githubuser/sibe#readme
+license:             BSD3
+license-file:        LICENSE
+author:              Author name here
+maintainer:          example@example.com
+copyright:           2016 Author name here
+category:            Web
+build-type:          Simple
+-- extra-source-files:
+cabal-version:       >=1.10
+
+library
+  hs-source-dirs:      src
+  exposed-modules:     Lib
+  build-depends:       base >= 4.7 && < 5
+  default-language:    Haskell2010
+
+executable sibe-exe
+  hs-source-dirs:      app
+  main-is:             Main.hs
+  ghc-options:         -threaded -rtsopts -with-rtsopts=-N
+  build-depends:       base
+                     , sibe
+  default-language:    Haskell2010
+
+test-suite sibe-test
+  type:                exitcode-stdio-1.0
+  hs-source-dirs:      test
+  main-is:             Spec.hs
+  build-depends:       base
+                     , sibe
+  ghc-options:         -threaded -rtsopts -with-rtsopts=-N
+  default-language:    Haskell2010
+
+source-repository head
+  type:     git
+  location: https://github.com/githubuser/sibe
diff --git a/src/Lib.hi b/src/Lib.hi
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index 0000000..8b1f3cd
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diff --git a/src/Lib.hs b/src/Lib.hs
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index 0000000..3b33989
--- /dev/null
+++ b/src/Lib.hs
@@ -0,0 +1,100 @@
+{-# LANGUAGE GADTs #-}
+{-# LANGUAGE BangPatterns #-}
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE TypeOperators #-}
+
+module Lib
+    (Network(..),
+     Layer,
+     Input,
+     Output,
+     forward,
+     randomLayer,
+     train,
+     session,
+    ) where
+      import Numeric.LinearAlgebra
+      import Control.Monad.Random
+      import System.Random
+      import Debug.Trace
+      import Data.List (foldl')
+
+      type LearningRate = Double
+      type Input = Vector Double
+      type Output = Vector Double
+
+      data Layer = L { biases :: !(Vector Double)
+                     , nodes  :: !(Matrix Double)
+                     } deriving (Show)
+
+      data Network = O Layer
+                   | Layer :- Network
+                   deriving (Show)
+      infixr 5 :-
+
+      runLayer :: Input -> Layer -> Output
+      runLayer input (L !biases !weights) = input <# weights + biases
+
+      forward :: Input -> Network -> Output
+      forward input (O l) = cmap logistic $ runLayer input l
+      forward input (l :- n) = forward (cmap logistic $ runLayer input l) n
+
+      randomLayer :: Seed -> (Int, Int) -> Layer
+      randomLayer seed (wr, wc) =
+        let weights = uniformSample seed wr $ replicate wc (-1, 1)
+            biases  = randomVector seed Uniform wc * 2 - 1
+        in L biases weights
+
+      logistic :: Double -> Double
+      logistic x = 1 / (1 + exp (-x))
+
+      logistic' :: Double -> Double
+      logistic' x = logistic x / max 1e-8 (1 - logistic x)
+
+      train :: Input
+            -> Network
+            -> Output -- target
+            -> Double -- learning rate
+            -> Network -- network's output
+      train input network target alpha = fst $ run input network
+        where
+          run :: Input -> Network -> (Network, Vector Double)
+          run input (O l@(L biases weights)) =
+            let y = runLayer input l
+                o = cmap logistic y
+                delta = o - target
+                de = delta * cmap logistic' y
+
+                biases'  = biases  - scale alpha de
+                weights' = weights - scale alpha (input `outer` de) -- small inputs learn slowly
+                layer    = L biases' weights' -- updated layer
+
+                pass = weights #> de
+                -- pass = weights #> de
+
+            in (O layer, pass)
+          run input (l@(L biases weights) :- n) =
+            let y = runLayer input l
+                o = cmap logistic y
+                (n', delta) = run o n
+
+                de = delta * cmap logistic' y
+
+                biases'  = biases  - scale alpha de
+                weights' = weights - scale alpha (input `outer` de)
+                layer = L biases' weights'
+
+                pass = weights #> de
+                -- pass = weights #> de
+            in (layer :- n', pass)
+
+      session :: [Input] -> Network -> [Output] -> Double -> Int -> Network
+      session inputs network labels alpha epochs =
+        foldl' iter network [0..n * epochs]
+        where
+          iter net i =
+            let n = length inputs - 1
+                index = i `mod` n
+                input = inputs !! index
+                label = labels !! index
+            in train input net label alpha
diff --git a/src/Lib.o b/src/Lib.o
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diff --git a/stack.yaml b/stack.yaml
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index 0000000..6f398d0
--- /dev/null
+++ b/stack.yaml
@@ -0,0 +1,72 @@
+# This file was automatically generated by 'stack init'
+# 
+# Some commonly used options have been documented as comments in this file.
+# For advanced use and comprehensive documentation of the format, please see:
+# http://docs.haskellstack.org/en/stable/yaml_configuration/
+
+# Resolver to choose a 'specific' stackage snapshot or a compiler version.
+# A snapshot resolver dictates the compiler version and the set of packages
+# to be used for project dependencies. For example:
+# 
+# resolver: lts-3.5
+# resolver: nightly-2015-09-21
+# resolver: ghc-7.10.2
+# resolver: ghcjs-0.1.0_ghc-7.10.2
+# resolver:
+#  name: custom-snapshot
+#  location: "./custom-snapshot.yaml"
+resolver: lts-6.7
+
+# User packages to be built.
+# Various formats can be used as shown in the example below.
+# 
+# packages:
+# - some-directory
+# - https://example.com/foo/bar/baz-0.0.2.tar.gz
+# - location:
+#    git: https://github.com/commercialhaskell/stack.git
+#    commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+# - location: https://github.com/commercialhaskell/stack/commit/e7b331f14bcffb8367cd58fbfc8b40ec7642100a
+#   extra-dep: true
+#  subdirs:
+#  - auto-update
+#  - wai
+# 
+# A package marked 'extra-dep: true' will only be built if demanded by a
+# non-dependency (i.e. a user package), and its test suites and benchmarks
+# will not be run. This is useful for tweaking upstream packages.
+packages:
+- location:
+    git: git@github.com:albertoruiz/hmatrix.git
+    commit: 42a88fbcb6bd1d2c4dc18fae5e962bd34fb316a1
+  subdirs: 
+    - packages/base
+#- '.'
+
+# Dependency packages to be pulled from upstream that are not in the resolver
+# (e.g., acme-missiles-0.3)
+extra-deps: []
+
+# Override default flag values for local packages and extra-deps
+flags: {}
+
+# Extra package databases containing global packages
+extra-package-dbs: []
+
+# Control whether we use the GHC we find on the path
+# system-ghc: true
+# 
+# Require a specific version of stack, using version ranges
+# require-stack-version: -any # Default
+# require-stack-version: ">=1.1"
+# 
+# Override the architecture used by stack, especially useful on Windows
+# arch: i386
+# arch: x86_64
+# 
+# Extra directories used by stack for building
+# extra-include-dirs: [/path/to/dir]
+# extra-lib-dirs: [/path/to/dir]
+# 
+# Allow a newer minor version of GHC than the snapshot specifies
+# compiler-check: newer-minor
diff --git a/test/Spec.hs b/test/Spec.hs
new file mode 100644
index 0000000..cd4753f
--- /dev/null
+++ b/test/Spec.hs
@@ -0,0 +1,2 @@
+main :: IO ()
+main = putStrLn "Test suite not yet implemented"