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ALIM: Adjusting Label Importance Mechanism for Noisy Partial Label Learning

Neural Information Processing Systems

Noisy partial label learning (noisy PLL) is an important branch of weakly supervised learning. Unlike PLL where the ground-truth label must conceal in the candidate label set, noisy PLL relaxes this constraint and allows the ground-truth label may not be in the candidate label set. To address this challenging problem, most of the existing works attempt to detect noisy samples and estimate the ground-truth label for each noisy sample. However, detection errors are unavoidable. These errors can accumulate during training and continuously affect model optimization. To this end, we propose a novel framework for noisy PLL with theoretical interpretations, called ``Adjusting Label Importance Mechanism (ALIM)''. It aims to reduce the negative impact of detection errors by trading off the initial candidate set and model outputs. ALIM is a plug-in strategy that can be integrated with existing PLL approaches. Experimental results on multiple benchmark datasets demonstrate that our method can achieve state-of-the-art performance on noisy PLL.



ALIM: Adjusting Label Importance Mechanism for Noisy Partial Label Learning

Neural Information Processing Systems

Noisy partial label learning (noisy PLL) is an important branch of weakly supervised learning. Unlike PLL where the ground-truth label must conceal in the candidate label set, noisy PLL relaxes this constraint and allows the ground-truth label may not be in the candidate label set. To address this challenging problem, most of the existing works attempt to detect noisy samples and estimate the ground-truth label for each noisy sample. However, detection errors are unavoidable. These errors can accumulate during training and continuously affect model optimization.


ALIM: Adjusting Label Importance Mechanism for Noisy Partial Label Learning

Xu, Mingyu, Lian, Zheng, Feng, Lei, Liu, Bin, Tao, Jianhua

arXiv.org Artificial Intelligence

Noisy partial label learning (noisy PLL) is an important branch of weakly supervised learning. Unlike PLL where the ground-truth label must conceal in the candidate label set, noisy PLL relaxes this constraint and allows the ground-truth label may not be in the candidate label set. To address this challenging problem, most of the existing works attempt to detect noisy samples and estimate the ground-truth label for each noisy sample. However, detection errors are unavoidable. These errors can accumulate during training and continuously affect model optimization. To this end, we propose a novel framework for noisy PLL with theoretical guarantees, called ``Adjusting Label Importance Mechanism (ALIM)''. It aims to reduce the negative impact of detection errors by trading off the initial candidate set and model outputs. ALIM is a plug-in strategy that can be integrated with existing PLL approaches. Experimental results on benchmark datasets demonstrate that our method can achieve state-of-the-art performance on noisy PLL. \textcolor[rgb]{0.93,0.0,0.47}{Our code can be found in Supplementary Material}.


Single-celled slime mold has no brain or nervous system but remembers where it got its last meal

Daily Mail - Science & tech

The single-celled Physarum polcephalum, or slime mold, does not have a brain or nervous system, but is able to remember the location of a food source, a new study reveals. German scientist sound the bright yellow slime mold records where its last meal was by changing the shape of its tubular tendrils. If it encounters food while weaving around an environment, the mold will keep its specific structure in that area to know where to return to feast. The latest study builds on the'amazing' skills of the yellow mold, which can also solve mazes and perform other tasks that require intelligence. New research suggests P. polycephalum, a bright yellow slime mold with no brain or nervous system, 'remembers' records where a food source is by restructuring the shape of its tubular tendrils.