Choquet-Based Fuzzy Rough Sets

Fuente: arXiv
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Auteurs principaux: Theerens, Adnan, Lenz, Oliver Urs, Cornelis, Chris
Format: Preprint
Publié: 2022
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author Theerens, Adnan
Lenz, Oliver Urs
Cornelis, Chris
author_facet Theerens, Adnan
Lenz, Oliver Urs
Cornelis, Chris
contents Fuzzy rough set theory can be used as a tool for dealing with inconsistent data when there is a gradual notion of indiscernibility between objects. It does this by providing lower and upper approximations of concepts. In classical fuzzy rough sets, the lower and upper approximations are determined using the minimum and maximum operators, respectively. This is undesirable for machine learning applications, since it makes these approximations sensitive to outlying samples. To mitigate this problem, ordered weighted average (OWA) based fuzzy rough sets were introduced. In this paper, we show how the OWA-based approach can be interpreted intuitively in terms of vague quantification, and then generalize it to Choquet-based fuzzy rough sets (CFRS). This generalization maintains desirable theoretical properties, such as duality and monotonicity. Furthermore, it provides more flexibility for machine learning applications. In particular, we show that it enables the seamless integration of outlier detection algorithms, to enhance the robustness of machine learning algorithms based on fuzzy rough sets.
format Preprint
id arxiv_https___arxiv_org_abs_2202_10872
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle Choquet-Based Fuzzy Rough Sets
Theerens, Adnan
Lenz, Oliver Urs
Cornelis, Chris
Machine Learning
Artificial Intelligence
Fuzzy rough set theory can be used as a tool for dealing with inconsistent data when there is a gradual notion of indiscernibility between objects. It does this by providing lower and upper approximations of concepts. In classical fuzzy rough sets, the lower and upper approximations are determined using the minimum and maximum operators, respectively. This is undesirable for machine learning applications, since it makes these approximations sensitive to outlying samples. To mitigate this problem, ordered weighted average (OWA) based fuzzy rough sets were introduced. In this paper, we show how the OWA-based approach can be interpreted intuitively in terms of vague quantification, and then generalize it to Choquet-based fuzzy rough sets (CFRS). This generalization maintains desirable theoretical properties, such as duality and monotonicity. Furthermore, it provides more flexibility for machine learning applications. In particular, we show that it enables the seamless integration of outlier detection algorithms, to enhance the robustness of machine learning algorithms based on fuzzy rough sets.
title Choquet-Based Fuzzy Rough Sets
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2202.10872