The data-named package

[Tags:bsd3, library]

The library provides data types which can be used to represent forest structures with labels stored in internal nodes and words kept in leaves. In particular, those types are well suited for representing the layer of named entities (NEs).

The IOB method is implemented in the Data.Named.IOB module and can be used to translate between a forest of entities and a sequence of compound IOB labels. This method can be used together with a sequence classifier to indirectly model forest structures.

The Data.Named.Graph module can be used to represent more general, graph structures of entities. The module provides also a lossy conversion from a DAG to a disjoint forest of entities.


Versions 0.1.0, 0.2.0, 0.3.0, 0.4.0, 0.5.0, 0.5.1, 0.5.2, 0.6.1
Change log changelog
Dependencies attoparsec (>=0.12 && <0.14), base (>=4.8 && <5), binary (>=0.7 && <0.9), containers (==0.5.*), text (>=1.1 && <1.3) [details]
License BSD3
Copyright Copyright (c) 2012 IPI PAN
Author Jakub Waszczuk
Stability experimental
Category Natural Language Processing
Home page
Source repository head: git clone git://
Uploaded Thu Jun 23 10:12:29 UTC 2016 by JakubWaszczuk
Distributions NixOS:0.6.1
Downloads 1578 total (20 in the last 30 days)
0 []
Status Docs pending
Build status unknown [no reports yet]


  • Data
    • Named
      • Data.Named.Graph
      • Data.Named.IOB
      • Data.Named.Tree
  • Text
    • Named
      • Text.Named.Enamex


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