Package: tbnb
Type: Package
Title: Threshold-Based and Iterative Threshold-Based Naive Bayes
        Classifier
Version: 0.1.0
Authors@R: 
    person(given = "Maurizio", family = "Romano",
           email = "romano.maurizio@unica.it", role = c("aut", "cre"))
Description: Implements the Threshold-Based Naive Bayes (Tb-NB)
        classifier and its iterative refinement (iTb-NB) for binary
        sentiment / text classification problems. The classifier
        computes a continuous log-likelihood ratio score per document
        and uses a data-driven decision threshold estimated via K-fold
        cross-validation on a user-selected criterion (accuracy, F1
        score, Matthews correlation coefficient, balanced error, etc.).
        An optional iterative refinement procedure locally re-estimates
        the threshold in regions of class overlap using either Gaussian
        kernel density estimation or a Central Limit Theorem bootstrap
        approximation. The package exposes an idiomatic R formula +
        data.frame interface together with a 'quanteda'-based text
        preprocessing pipeline, supports user-supplied document-feature
        matrices, and includes an optional word-embedding extension
        that augments the Bag-of-Words with K nearest semantic
        neighbours of each token. The package additionally implements
        the p-value extension proposed by Romano (2025) for both
        document- and feature-level interpretability via
        tbnb_pvalues(). Methods are described in Romano, Contu, Mola,
        Conversano (2024) <doi:10.1007/s11634-023-00536-8>, Romano,
        Zammarchi, Conversano (2024) <doi:10.1007/s10260-023-00721-1>,
        and Romano (2025) <doi:10.1007/978-3-031-96736-8_41>.
License: GPL (>= 3)
Encoding: UTF-8
Language: en-GB
LazyData: true
Depends: R (>= 4.0)
Imports: Matrix, methods, stats, grDevices, graphics, quanteda (>=
        3.0.0)
Suggests: text2vec, stopwords, SnowballC, cld2, cld3, dbscan,
        viridisLite, testthat (>= 3.0.0), ggplot2
Config/testthat/edition: 3
RoxygenNote: 7.3.3
NeedsCompilation: no
Packaged: 2026-07-21 12:24:06 UTC; root
Author: Maurizio Romano [aut, cre]
Maintainer: Maurizio Romano <romano.maurizio@unica.it>
Repository: https://cran.r-universe.dev
Date/Publication: 2026-07-21 09:30:07 UTC
RemoteUrl: https://github.com/cran/tbnb
RemoteRef: HEAD
RemoteSha: faa86269cf5f9a5b901b1d2fe9a0fab1d641af93