record-encode: Generic encoding of records

[ bsd3, data, data-mining, data-science, deprecated, library, machine-learning ] [ Propose Tags ]
Deprecated. in favor of heidi

Generic encoding of records. It currently provides a single, polymorphic function to encode sum types (i.e. categorical variables) as one-hot vectors.


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Versions [RSS] 0.1.0.0, 0.1.0.1, 0.2, 0.2.1, 0.2.2, 0.2.3
Dependencies base (>=4.7 && <5), generics-sop, vector [details]
License BSD-3-Clause
Copyright 2018 Marco Zocca
Author Marco Zocca
Maintainer ocramz fripost org
Category Data, Data Science, Data Mining, Machine Learning
Home page https://github.com/ocramz/record-encode
Source repo head: git clone https://github.com/ocramz/record-encode
Uploaded by ocramz at 2018-08-20T05:32:31Z
Distributions NixOS:0.2.3
Downloads 2462 total (30 in the last 30 days)
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Status Docs available [build log]
Last success reported on 2018-08-20 [all 1 reports]

Readme for record-encode-0.2.2

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record-encode

Build Status Hackage

This library provides generic machinery to encode values of some algebraic type as points in a vector space.

Analyzing datasets that have one or more categorical variables (that is, values having a sum type) typically requires a series of boilerplate transformations, and the encodeOneHot function provided here does precisely that.

Usage example

    {-# language DeriveGeneric -#}

    import qualified GHC.Generics as G
    import qualified Generics.SOP as SOP
    
    import Data.Record.Encode

    data X = A | B | C deriving (G.Generic)
    instance SOP.Generic X
    > encodeOneHot B
    OH {oDim = 3, oIx = 1}

Acknowledgements

Gagandeep Bhatia (@gagandeepb) for his GSoC '18 work on Frames-beam, Mark Karpov (@mrkkrp) for his Template Haskell tutorial, Anthony Cowley (@acowley) for vinyl and Frames, @mniip on Freenode #haskell for helping me better understand what can be done with generic programming.