src/Gargantext/Text/Examples.hs

   1 {-|
   2 Module      : Gargantext.Text.Examples
   3 Description : Minimal Examples to test behavior of the functions.
   4 Copyright   : (c) CNRS, 2017 - present
   5 License     : AGPL + CECILL v3
   6 Maintainer  : team@gargantext.org
   7 Stability   : experimental
   8 Portability : POSIX
   9
  10 This file is intended for these purposes:
  11
  12 - documentation for teaching and research
  13 - learn basics of Haskell which is a scientific programming language
  14 - behavioral tests (that should be completed with uni-tests and scale-tests)
  15
  16 This document defines basic of Text definitions according to Gargantext..
  17
  18 - What is a term ?
  19 - What is a sentence ?
  20 - What is a paragraph ?
  21
  22 -}
  23
  24 {-# LANGUAGE BangPatterns      #-}
  25
  26 module Gargantext.Text.Examples
  27   where
  28
  29 import Data.Ord (Down(..))
  30 import qualified Data.List as L
  31
  32 import Data.Map (Map)
  33 import qualified Data.Map  as M
  34
  35 import Data.Text (Text)
  36 import qualified Data.Text as T
  37
  38 import Data.Tuple.Extra (both)
  39 import Data.Array.Accelerate (toList, Matrix)
  40
  41 import Gargantext.Prelude
  42 import Gargantext.Text.Metrics.Count (occurrences, cooc)
  43 import Gargantext.Text.Terms (TermType(MonoMulti), terms)
  44 import Gargantext.Core (Lang(EN))
  45 import Gargantext.Core.Types (Terms(..), Label)
  46 import Gargantext.Text.Context (splitBy, SplitContext(Sentences))
  47 import Gargantext.Text.Metrics.Count (Grouped)
  48 import Gargantext.Viz.Graph.Distances.Matrice
  49 import Gargantext.Viz.Graph.Index
  50
  51 import qualified Data.Array.Accelerate as DAA
  52
  53 -- | Sentences
  54 -- Let be a list of Texts: ['Data.Text.Text']. Each text in this example is a sentence.
  55 --
  56 -- >>> ex_sentences
  57 -- ["There is a table with a glass of wine and a spoon.","I can see the glass on the table.","There was only a spoon on that table.","The glass just fall from the table, pouring wine everywhere.","I wish the glass did not contain wine."]
  58 ex_sentences :: [Text]
  59 ex_sentences = [ "There is a table with a glass of wine and a spoon."
  60             , "I can see the glass on the table."
  61             , "There was only a spoon on that table."
  62             , "The glass just fall from the table, pouring wine everywhere."
  63             , "I wish the glass did not contain wine."
  64             ]
  65
  66
  67 -- | From list to simple text as paragraph.
  68 -- Let 'Data.Text.intercalate' each sentence with a space. Result is a paragraph.
  69 --
  70 -- >>> T.intercalate (T.pack " ") ex_sentences
  71 -- "There is a table with a glass of wine and a spoon. I can see the glass on the table. There was only a spoon on that table. The glass just fall from the table, pouring wine everywhere. I wish the glass did not contain wine."
  72 ex_paragraph :: Text
  73 ex_paragraph = T.intercalate " " ex_sentences
  74
  75 -- | Let split sentences by Contexts of text.
  76 -- More about 'Gargantext.Text.Context'
  77 --
  78 -- >>> ex_sentences == splitBy (Sentences 0) ex_paragraph
  79 -- True
  80
  81 -- | Terms reordered to visually check occurrences
  82 -- Split text by sentence and then extract ngrams.
  83 --
  84 -- >>> mapM (terms (MonoMulti EN)) $ splitBy (Sentences 0) ex_paragraph
  85 -- [[["table"],["glass"],["wine"],["spoon"]],[["glass"],["table"]],[["spoon"],["table"]],[["glass"],["table"],["wine"]],[["glass"],["wine"]]]
  86 ex_terms :: IO [[Terms]]
  87 ex_terms = mapM (terms (MonoMulti EN)) $ splitBy (Sentences 0) ex_paragraph
  88
  89 -- | Test the Occurrences
  90 --
  91 -- >>> occurrences <$> L.concat <$> ex_terms
  92 -- fromList [(fromList ["glass"],fromList [(["glass"],4)]),(fromList ["spoon"],fromList [(["spoon"],2)]),(fromList ["tabl"],fromList [(["table"],4)]),(fromList ["wine"],fromList [(["wine"],3)])]
  93 ex_occ :: IO (Map Grouped (Map Terms Int))
  94 ex_occ = occurrences <$> L.concat <$> ex_terms
  95
  96 -- | Test the cooccurrences
  97 -- Use the 'Gargantext.Text.Metrics.Count.cooc' function.
  98 --
  99 -- >>> cooc <$> ex_terms
 100 -- fromList [((["glass"],["glass"]),4),((["spoon"],["glass"]),1),((["spoon"],["spoon"]),2),((["table"],["glass"]),3),((["table"],["spoon"]),2),((["table"],["table"]),4),((["wine"],["glass"]),3),((["wine"],["spoon"]),1),((["wine"],["table"]),2),((["wine"],["wine"]),3)]
 101 ex_cooc :: IO (Map (Label, Label) Int)
 102 ex_cooc = cooc <$> ex_terms
 103
 104 -- | Tests the specificity and genericity
 105 --
 106 -- >>> ex_cooc_mat
 107 -- (fromList [(["glass"],0),(["spoon"],1),(["table"],2),(["wine"],3)],Matrix (Z :. 4 :. 4)
 108 --   [ 4, 0, 0, 0,
 109 --     1, 2, 0, 0,
 110 --     3, 2, 4, 0,
 111 --     3, 1, 2, 3],Matrix (Z :. 4 :. 4)
 112 --   [ 1.0, 0.25, 0.75, 0.75,
 113 --     0.0,  1.0,  1.0,  0.5,
 114 --     0.0,  0.0,  1.0,  0.5,
 115 --     0.0,  0.0,  0.0,  1.0],(Vector (Z :. 4) [0.5833333333333334,0.5833333333333334,0.75,0.5833333333333334],Vector (Z :. 4) [-0.5833333333333334,-0.4166666666666667,0.41666666666666674,0.5833333333333334]))
 116 ex_cooc_mat :: IO (Map Label Index, Matrix Int, Matrix Double, (DAA.Vector InclusionExclusion, DAA.Vector SpecificityGenericity))
 117 ex_cooc_mat = do
 118   m <- ex_cooc
 119   let (ti,_) = createIndices m
 120   let mat_cooc = cooc2mat ti m
 121   pure ( ti
 122        , mat_cooc
 123        , incExcSpeGen_proba  mat_cooc
 124        , incExcSpeGen        mat_cooc
 125        )
 126
 127 ex_incExcSpeGen :: IO ([(Label, Double)], [(Label, Double)])
 128 ex_incExcSpeGen = incExcSpeGen_sorted <$> ex_cooc
 129
 130 incExcSpeGen_sorted :: Ord t => Map (t,t) Int -> ([(t,Double)],[(t,Double)])
 131 incExcSpeGen_sorted m = both ordonne (incExcSpeGen $ cooc2mat ti m)
 132   where
 133     (ti,fi) = createIndices m
 134     ordonne x = sortWith (Down . snd)
 135               $ zip (map snd $ M.toList fi) (toList x)
 136
 137