Concentration Distribution Learning from Label Distributions

Fuente: arXiv
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Main Authors: Tang, Jiawei, Jia, Yuheng
Format: Preprint
Published: 2025
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author Tang, Jiawei
Jia, Yuheng
author_facet Tang, Jiawei
Jia, Yuheng
contents Label distribution learning (LDL) is an effective method to predict the relative label description degree (a.k.a. label distribution) of a sample. However, the label distribution is not a complete representation of an instance because it overlooks the absolute intensity of each label. Specifically, it's impossible to obtain the total description degree of hidden labels that not in the label space, which leads to the loss of information and confusion in instances. To solve the above problem, we come up with a new concept named background concentration to serve as the absolute description degree term of the label distribution and introduce it into the LDL process, forming the improved paradigm of concentration distribution learning. Moreover, we propose a novel model by probabilistic methods and neural networks to learn label distributions and background concentrations from existing LDL datasets. Extensive experiments prove that the proposed approach is able to extract background concentrations from label distributions while producing more accurate prediction results than the state-of-the-art LDL methods. The code is available in https://github.com/seutjw/CDL-LD.
format Preprint
id arxiv_https___arxiv_org_abs_2505_21576
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Concentration Distribution Learning from Label Distributions
Tang, Jiawei
Jia, Yuheng
Machine Learning
Artificial Intelligence
Label distribution learning (LDL) is an effective method to predict the relative label description degree (a.k.a. label distribution) of a sample. However, the label distribution is not a complete representation of an instance because it overlooks the absolute intensity of each label. Specifically, it's impossible to obtain the total description degree of hidden labels that not in the label space, which leads to the loss of information and confusion in instances. To solve the above problem, we come up with a new concept named background concentration to serve as the absolute description degree term of the label distribution and introduce it into the LDL process, forming the improved paradigm of concentration distribution learning. Moreover, we propose a novel model by probabilistic methods and neural networks to learn label distributions and background concentrations from existing LDL datasets. Extensive experiments prove that the proposed approach is able to extract background concentrations from label distributions while producing more accurate prediction results than the state-of-the-art LDL methods. The code is available in https://github.com/seutjw/CDL-LD.
title Concentration Distribution Learning from Label Distributions
topic Machine Learning
Artificial Intelligence
url https://arxiv.org/abs/2505.21576