isotree.set.nthreads

Changes the number of threads that an isolation forest model object
will use when calling functions such as `predict`.

Fast and multi-threaded implementation of
isolation forest (Liu, Ting, Zhou (2008) <doi:10.1109/ICDM.2008.17>),
extended isolation forest (Hariri, Kind, Brunner (2018) <arXiv:1811.02141>),
SCiForest (Liu, Ting, Zhou (2010) <doi:10.1007/978-3-642-15883-4_18>),
fair-cut forest (Cortes (2021) <arXiv:2110:13402>),
robust random-cut forest (Guha, Mishra, Roy, Schrijvers (2016) <http://proceedings.mlr.press/v48/guha16.html>),
and customizable variations of them, for isolation-based outlier detection, clustered outlier detection,
distance or similarity approximation (Cortes (2019) <arXiv:1910.12362>),
isolation kernel calculation (Ting, Zhu, Zhou (2018) <doi:10.1145/3219819.3219990>),
and imputation of missing values (Cortes (2019) <arXiv:1911.06646>),
based on random or guided decision tree splitting, and providing different metrics for
scoring anomalies based on isolation depth or density (Cortes (2021) <arXiv:2111.11639>).
Provides simple heuristics for fitting the model to categorical columns and handling missing data,
and offers options for varying between random and guided splits, and for using different splitting criteria.

David Cortes

isotree

Isolation-Based Outlier Detection

Thibaut Goetghebuer-Planchon

David Blackman

Sebastiano Vigna

NumPy Developers

isotree.set.nthreads function

<dl><dt>model</dt>
<dd>An Isolation Forest model (as returned by function isolation.forest)
for which an indexer for terminal node numbers and/or distances will be added.
The object will be modified in-place.</dd>
<dt>nthreads</dt>
<dd>Number of threads to set for this model object to use.</dd></dl>

Arguments

Set Number of Threads for Isolation Forest Model Object — isotree.set.nthreads

<dl>

<dt>model</dt>
<dd>An Isolation Forest model (as returned by function isolation.forest)
for which an indexer for terminal node numbers and/or distances will be added.
The object will be modified in-place.</dd>


<dt>nthreads</dt>
<dd>Number of threads to set for this model object to use.</dd>

</dl>

isotree.set.nthreads: Set Number of Threads for Isolation Forest Model Object

Description

Usage

Value

Arguments