Easy balanced mixing for long-tailed data
WebModern real-world large-scale datasets often have long-tailed label distributions [51, 28, 34, 12, 15, 50, 40]. On these datasets, deep neural networks have been found to perform poorly on less represented classes [17, 51, 5]. This is particularly detrimental if the testing criterion places more emphasis on minority classes. WebSep 12, 2024 · Long-tailed distribution generally exists in large-scale face datasets, which poses challenges for learning discriminative feature in face recognition. Although a few works conduct preliminary research on this problem, the value of the tail data is still underestimated. This paper addresses the long-tailed problem from the perspective of …
Easy balanced mixing for long-tailed data
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WebOct 7, 2024 · In this section, we first analyze the underlying issues of long-tailed data that affect model performance (Sect. 3.1), and then explore deeper into the feature space of DNNs and illustrate a novel way to alleviate the problem (Sect. 3.2). 3.1 Two Reasons of Model Performance Drop. Long-tailed data hurt the performance of learning-based … Webet al.,2024). From our extensive study across three long-tail datasets, ImageNet-LT, Places-LT and iNaturalist, we make the following intriguing observations: •We find that decoupling representation learning and classification has surprising results that challenge common beliefs for long-tailed recognition: instance-balanced sampling learns
WebSep 21, 2024 · In this paper, we propose Balanced-MixUp, a new imbalanced-robust training method that mixes up imbalanced (instance-based) and balanced (class-based) … Webclass and context distributional change caused by long-tailed distribution (Section4.1). Such invariance can reduce “hard” noises to “easy” ones. Specifically, we sample three data distribution: long-tailed, balanced, and reversed long-tailed, as three context environments, and then apply
Webespecially in balanced data scenarios. Though, real-world data is usually severely imbalanced, following a long-tailed distribution [71,55,34,35], i.e., very few fre-quent classes take up the majority of data (head) while most classes are in-frequent (tail). The highly biased data skews classifier learning and leads to performance drop on tail ... Weblong-tailed training datasets often underperforms on a class-balanced test dataset. As datasets are scaling up nowadays, the long-tailed nature poses critical difficulties to many vision tasks, e.g., visual recognition and instance segmentation. An intuitive solution to long-tailed task is to re-balance the data distribution. Most state-of-the-art
WebPublished in Mastering. How to Make a Balanced Mix. When making your mix more balanced, use a frequency and image analyzer to check if your mix is within a …
WebLong-tailed classification. For the long-tailed classifi-cation task, there is a rich body of widely used meth-ods including data re-sampling [3] and re-weighting [2,7]. Recent works [19,48] reveal the effectiveness of using different sampling schemes in decoupled training stages. Instance-balanced sampling is found useful for the first fea ... shark cage diving clearwater floridaWebOct 10, 2024 · In a word, we employ two independent class-balanced samplers to select data pairs and mix them to generate new data. We test our method on several long … pop to play slideWebEasy balanced mixing for long-tailed data. Z Zhu, H Xing, Y Xu. Knowledge-Based Systems 248, 108816, 2024. 1: 2024: Efficient matrixized classification learning with … pop top roofs scotlandWebJul 19, 2024 · In long-tailed data, the greatest challenge is the lack of tail information, which creates difficulties in recognizing unseen tail samples. To this end, this work proposes an easy balanced mixing framework (EZBM) that extends the decision region for tail … shark cage diving hawaii big islandWebNov 1, 2024 · Such invariance can reduce “hard” noises to “easy” ones. Specifically, we sample three data distribution: long-tailed, balanced, and reversed long-tailed, as three context environments, and then apply Invariant Risk Minimization (IRM) to learn a long-tailed classifier as the noise identifier invariant to these environments. Note that ... shark cage diving in durban pricesWebFeature Space Augmentation for Long-Tailed Data 5 2.3 Transfer Learning Past works in the domain of transfer learning and few-shot learning [42,2,32, 44,31,47] have been conducted to solve the long-tailed problem. Our work shares a similar assumption with these works that the information from the head classes can be used to help the tail classes. pop top roof tentWebMar 22, 2024 · In this paper, at the original batch level, we introduce a class-balanced supervised contrastive loss to assign adaptive weights for different classes. At the Siamese batch level, we present a ... shark cage diving in california