get_partition_function

Compute the logarithm of the partition function for a Mallows rank model

internal

An implementation of the Bayesian version of the Mallows rank model
(Vitelli et al., Journal of Machine Learning Research, 2018 <https://jmlr.org/papers/v18/15-481.html>;
Crispino et al., Annals of Applied Statistics, 2019 <doi:10.1214/18-AOAS1203>;
Sorensen et al., R Journal, 2020 <doi:10.32614/RJ-2020-026>;
Stein, PhD Thesis, 2023 <https://eprints.lancs.ac.uk/id/eprint/195759>). Both Metropolis-Hastings
and sequential Monte Carlo algorithms for estimating the models are available. Cayley, footrule,
Hamming, Kendall, Spearman, and Ulam distances are supported in the models. The rank data to be
analyzed can be in the form of complete rankings, top-k rankings, partially missing rankings, as well
as consistent and inconsistent pairwise preferences. Several functions for plotting and studying the
posterior distributions of parameters are provided. The package also provides functions for estimating
the partition function (normalizing constant) of the Mallows rank model, both with the importance
sampling algorithm of Vitelli et al. and asymptotic approximation with the IPFP algorithm
(Mukherjee, Annals of Statistics, 2016 <doi:10.1214/15-AOS1389>).

Oystein Sorensen

BayesMallows

Bayesian Preference Learning with the Mallows Rank Model

Waldir Leoncio

Valeria Vitelli

Marta Crispino

Qinghua Liu

Cristina Mollica

Luca Tardella

Anja Stein

get_partition_function function

<dl><dt>n_items</dt>
<dd>Number of items.</dd>
<dt>alpha</dt>
<dd>The value of the alpha parameter.</dd>
<dt>cardinalities</dt>
<dd>Number of occurrences for each unique distance.
Applicable for Footrule and Spearman distance. Defaults to <code>R_NilValue</code>.</dd>
<dt>logz_estimate</dt>
<dd>Precomputed importance sampling fit.</dd>
<dt>metric</dt>
<dd>A string. Available options are <code>"footrule"</code>,
<code>"kendall"</code>, <code>"spearman"</code>, <code>"cayley"</code>, <code>"hamming"</code>, and <code>"ulam"</code>.
Defaults to <code>"footrule"</code>.</dd></dl>

Arguments

Compute the logarithm of the partition function for a Mallows rank model — get_partition_function

<dl>

<dt>n_items</dt>
<dd>Number of items.</dd>


<dt>alpha</dt>
<dd>The value of the alpha parameter.</dd>


<dt>cardinalities</dt>
<dd>Number of occurrences for each unique distance.
Applicable for Footrule and Spearman distance. Defaults to <code>R_NilValue</code>.</dd>


<dt>logz_estimate</dt>
<dd>Precomputed importance sampling fit.</dd>


<dt>metric</dt>
<dd>A string. Available options are <code>"footrule"</code>,
<code>"kendall"</code>, <code>"spearman"</code>, <code>"cayley"</code>, <code>"hamming"</code>, and <code>"ulam"</code>.
Defaults to <code>"footrule"</code>.</dd>

</dl>

Compute the logarithm of the partition function for a Mallows rank model

get_partition_function: Compute the logarithm of the partition function for a Mallows rank model

Description

Usage

Value

Arguments

References