src/Gargantext/TextFlow.hs

   1 {-|
   2 Module      : Gargantext.TextFlow
   3 Description : Server API
   4 Copyright   : (c) CNRS, 2017-Present
   5 License     : AGPL + CECILL v3
   6 Maintainer  : team@gargantext.org
   7 Stability   : experimental
   8 Portability : POSIX
   9
  10 From text to viz, all the flow of texts in Gargantext.
  11
  12 -}
  13
  14 {-# OPTIONS_GHC -fno-warn-name-shadowing #-}
  15 {-# LANGUAGE NoImplicitPrelude           #-}
  16
  17 module Gargantext.TextFlow
  18   where
  19
  20 import GHC.IO (FilePath)
  21 import qualified Data.Text as T
  22 import Data.Text.IO (readFile)
  23
  24 import Data.Maybe (catMaybes)
  25 import qualified Data.Set as DS
  26
  27 import qualified Data.Array.Accelerate as A
  28 import qualified Data.Map.Strict as M
  29 ----------------------------------------------
  30 import Gargantext.Database (Connection)
  31
  32 import Gargantext.Database.Node
  33 import Gargantext.Database.Types.Node
  34
  35 import Gargantext.Core (Lang)
  36 import Gargantext.Prelude
  37
  38 import Gargantext.Viz.Graph.Index (createIndices, toIndex, map2mat, mat2map)
  39 import Gargantext.Viz.Graph.Distances.Matrice (measureConditional)
  40 import Gargantext.Viz.Graph (Graph(..), data2graph)
  41 import Gargantext.Text.Metrics.Count (cooc)
  42 import Gargantext.Text.Metrics (filterCooc, FilterConfig(..), Clusters(..), SampleBins(..), DefaultValue(..), MapListSize(..), InclusionSize(..))
  43 import Gargantext.Text.Terms (TermType, extractTerms)
  44 import Gargantext.Text.Context (splitBy, SplitContext(Sentences))
  45
  46 import Gargantext.Text.Parsers.CSV
  47
  48 import Data.Graph.Clustering.Louvain.CplusPlus (cLouvain, l_community_id)
  49
  50 {-
  51   ____                             _            _
  52  / ___| __ _ _ __ __ _  __ _ _ __ | |_ _____  _| |_
  53 | |  _ / _` | '__/ _` |/ _` | '_ \| __/ _ \ \/ / __|
  54 | |_| | (_| | | | (_| | (_| | | | | ||  __/>  <| |_
  55  \____|\__,_|_|  \__, |\__,_|_| |_|\__\___/_/\_\\__|
  56                  |___/
  57 -}
  58
  59
  60 contextText :: [T.Text]
  61 contextText = map T.pack ["The dog is an animal."
  62               ,"The bird is a animal."
  63               ,"The dog is a animal."
  64               ,"The animal is a bird or a dog ?"
  65               ,"The table is a object."
  66               ,"The pen is a object."
  67               ,"The object is a pen or a table ?"
  68               ,"The girl is human body."
  69               ,"The boy  is human body."
  70               ,"The boy or the girl are human body."
  71               ]
  72
  73
  74 -- | Control the flow of text
  75 data TextFlow = CSV FilePath
  76               | FullText FilePath
  77               | Contexts [T.Text]
  78               | DB Connection CorpusId
  79               | Query T.Text
  80
  81
  82 textFlow :: TermType Lang -> TextFlow -> IO Graph
  83 textFlow termType workType = do
  84   contexts <- case workType of
  85                 FullText path -> splitBy (Sentences 5) <$> readFile path
  86                 CSV      path -> readCsvOn [csv_title, csv_abstract] path
  87                 Contexts ctxt -> pure ctxt
  88                 DB con corpusId -> catMaybes <$> map (\n -> hyperdataDocumentV3_title (node_hyperdata n)  <> hyperdataDocumentV3_abstract (node_hyperdata n))<$> getDocumentsV3WithParentId con corpusId
  89                 _             -> undefined -- TODO Query not supported
  90
  91   textFlow' termType contexts
  92
  93
  94 textFlow' :: TermType Lang -> [T.Text] -> IO Graph
  95 textFlow' termType contexts = do
  96   -- Context :: Text -> [Text]
  97   -- Contexts = Paragraphs n | Sentences n | Chars n
  98
  99   myterms <- extractTerms termType contexts
 100   -- TermsType = Mono | Multi | MonoMulti
 101   -- myterms # filter (\t -> not . elem t stopList)
 102   --         # groupBy (Stem|GroupList|Ontology)
 103   printDebug "terms" myterms
 104   printDebug "myterms" (sum $ map length myterms)
 105
 106   -- Bulding the map list
 107   -- compute copresences of terms, i.e. cooccurrences of terms in same context of text
 108   -- Cooc = Map (Term, Term) Int
 109   let myCooc1 = cooc myterms
 110   printDebug "myCooc1 size" (M.size myCooc1)
 111
 112   -- Remove Apax: appears one time only => lighting the matrix
 113   let myCooc2 = M.filter (>0) myCooc1
 114   printDebug "myCooc2 size" (M.size myCooc2)
 115   printDebug "myCooc2" myCooc2
 116
 117
 118   -- Filtering terms with inclusion/Exclusion and Specificity/Genericity scores
 119   let myCooc3 = filterCooc ( FilterConfig (MapListSize    350 )
 120                                           (InclusionSize  500 )
 121                                           (SampleBins      10 )
 122                                           (Clusters         3 )
 123                                           (DefaultValue     0 )
 124                            ) myCooc2
 125   printDebug "myCooc3 size" $ M.size myCooc3
 126   printDebug "myCooc3" myCooc3
 127
 128   -- Cooc -> Matrix
 129   let (ti, _) = createIndices myCooc3
 130   printDebug "ti size" $ M.size ti
 131   printDebug "ti" ti
 132
 133   let myCooc4 = toIndex ti myCooc3
 134   printDebug "myCooc4 size" $ M.size myCooc4
 135   printDebug "myCooc4" myCooc4
 136
 137   let matCooc = map2mat (0) (M.size ti) myCooc4
 138   printDebug "matCooc shape" $ A.arrayShape matCooc
 139   printDebug "matCooc" matCooc
 140
 141   -- Matrix -> Clustering
 142   let distanceMat = measureConditional matCooc
 143   --let distanceMat = distributional matCooc
 144   printDebug "distanceMat shape" $ A.arrayShape distanceMat
 145   printDebug "distanceMat" distanceMat
 146 --
 147   --let distanceMap = M.filter (>0) $ mat2map distanceMat
 148   let distanceMap = M.map (\_ -> 1) $ M.filter (>0) $ mat2map distanceMat
 149   printDebug "distanceMap size" $ M.size distanceMap
 150   printDebug "distanceMap" distanceMap
 151
 152 --  let distance = fromIndex fi distanceMap
 153 --  printDebug "distance" $ M.size distance
 154
 155   partitions <- cLouvain distanceMap
 156 -- Building : -> Graph -> JSON
 157   printDebug "partitions" $ DS.size $ DS.fromList $ map (l_community_id) partitions
 158   --printDebug "partitions" partitions
 159   pure $ data2graph (M.toList ti) myCooc4 distanceMap partitions
 160