35.2361, Software: "idiolect": a new R package for Forensic Authorship Analysis

[The LINGUIST List]

LINGUIST List: Vol-35-2361. Sat Aug 31 2024. ISSN: 1069 - 4875.

Subject: 35.2361, Software: "idiolect": a new R package for Forensic Authorship Analysis

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Date: 29-Aug-2024
From: Andrea Nini [andrea.nini at manchester.ac.uk]
Subject: "idiolect": a new R package for Forensic Authorship Analysis


I’m pleased to announce the release of version 1 of "idiolect", a new
package to carry out Forensic Authorship Analysis using R. The website
of the package https://andreanini.github.io/idiolect contains a Get
Started page with a brief tutorial. The package offers several
well-known authorship analysis methods, as well as functions to
calibrate Likelihood Ratios so to express the strength of the evidence
within the Likelihood Ratio Framework for forensic science.

The package contains functions that cover the typical workflow for
authorship analysis for forensic problems:

1) Input and preprocess data;
2) Carry out an analysis (Delta, N-gram Tracing, the Impostors Method,
LambdaG);
3) Test the performance of the methods on ground truth data;
4) Apply the method to the questioned text and calibrate a Likelihood
Ratio;
5) Explore the data using feature importance or other visualisations
depending on the method, including using concordances.

The package therefore includes all functionalities to be used for both
research and for real life forensic linguistics casework. The code is
completely open source and it can therefore be fully scrutinised by
other experts and it allows other experts to build more
functionalities on it.

Any feedback or comments to improve the package is very much welcome.

Linguistic Field(s): Applied Linguistics
                     Computational Linguistics
                     Forensic Linguistics
                     Text/Corpus Linguistics




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