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Recently proposed methods for implicitly representing signals such as images, scenes, or geometries using coordinate-based neural network architectures often do not leverage the choice of activation functions, or do so only to a limited…

神经与进化计算 · 计算机科学 2024-01-23 Danzel Serrano , Jakub Szymkowiak , Przemyslaw Musialski

Binary representation is desirable for its memory efficiency, computation speed and robustness. In this paper, we propose adjustable bounded rectifiers to learn binary representations for deep neural networks. While hard constraining…

机器学习 · 计算机科学 2015-11-20 Zhirong Wu , Dahua Lin , Xiaoou Tang

Random feature (RF) method is a powerful kernel approximation technique, but is typically equipped with fixed activation functions, limiting its adaptability across diverse tasks. To overcome this limitation, we introduce the Random Feature…

机器学习 · 计算机科学 2025-11-06 Zailin Ma , Jiansheng Yang , Yaodong Yang

Skin cancer is one of the most prevalent and potentially life-threatening diseases worldwide, necessitating early and accurate diagnosis to improve patient outcomes. Conventional diagnostic methods, reliant on clinical expertise and…

计算机视觉与模式识别 · 计算机科学 2025-01-28 Mirza Ahsan Ullah , Tehseen Zia

We propose reproducing activation functions (RAFs) to improve deep learning accuracy for various applications ranging from computer vision to scientific computing. The idea is to employ several basic functions and their learnable linear…

机器学习 · 计算机科学 2021-02-23 Senwei Liang , Liyao Lyu , Chunmei Wang , Haizhao Yang

We present a unified representation of the most popular neural network activation functions. Adopting Mittag-Leffler functions of fractional calculus, we propose a flexible and compact functional form that is able to interpolate between…

机器学习 · 计算机科学 2024-10-10 Mohammad Mostafanejad

In this paper, we introduce a novel non-linear activation function that spontaneously induces class-compactness and regularization in the embedding space of neural networks. The function is dubbed DOME for Difference Of Mirrored Exponential…

机器学习 · 计算机科学 2021-12-08 Mohamed E. Hussein , Wael AbdAlmageed

Activation functions are key to effective backpropagation and expressiveness in deep neural networks. This work introduces Tangma, a new activation function that combines the smooth shape of the hyperbolic tangent with two learnable…

神经与进化计算 · 计算机科学 2025-07-16 Shreel Golwala

Recently, multi-modality scene perception tasks, e.g., image fusion and scene understanding, have attracted widespread attention for intelligent vision systems. However, early efforts always consider boosting a single task unilaterally and…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Zhu Liu , Jinyuan Liu , Guanyao Wu , Long Ma , Xin Fan , Risheng Liu

Achieving transparency in black-box deep learning algorithms is still an open challenge. High dimensional features and decisions given by deep neural networks (NN) require new algorithms and methods to expose its mechanisms. Current…

机器学习 · 计算机科学 2020-06-12 Schyler C. Sun , Chen Li , Zhuangkun Wei , Antonios Tsourdos , Weisi Guo

Hyperspectral image fusion (HIF) is critical to a wide range of applications in remote sensing and many computer vision applications. Most traditional HIF methods assume that the observation model is predefined or known. However, in real…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Wu Wang , Yue Huang , Xinhao Ding

Deep neural network (DNN) typically involves convolutions, pooling, and activation function. Due to the growing concern about privacy, privacy-preserving DNN becomes a hot research topic. Generally, the convolution and pooling operations…

密码学与安全 · 计算机科学 2024-03-04 Qian Feng , Zhihua Xia , Zhifeng Xu , Jiasi Weng , Jian Weng

In Neural Networks (NN), Adaptive Activation Functions (AAF) have parameters that control the shapes of activation functions. These parameters are trained along with other parameters in the NN. AAFs have improved performance of Neural…

计算机视觉与模式识别 · 计算机科学 2016-08-24 Le Hou , Dimitris Samaras , Tahsin M. Kurc , Yi Gao , Joel H. Saltz

Fine-grained image recognition is central to many multimedia tasks such as search, retrieval and captioning. Unfortunately, these tasks are still challenging since the appearance of samples of the same class can be more different than those…

In this brief we investigate the generalization properties of a recently-proposed class of non-parametric activation functions, the kernel activation functions (KAFs). KAFs introduce additional parameters in the learning process in order to…

机器学习 · 统计学 2019-03-29 Michele Cirillo , Simone Scardapane , Steven Van Vaerenbergh , Aurelio Uncini

The most widely used activation functions in current deep feed-forward neural networks are rectified linear units (ReLU), and many alternatives have been successfully applied, as well. However, none of the alternatives have managed to…

机器学习 · 计算机科学 2018-06-27 Leon René Sütfeld , Flemming Brieger , Holger Finger , Sonja Füllhase , Gordon Pipa

This paper introduces a novel parametric activation function based on Wendland radial basis functions (RBFs) for deep neural networks. Wendland RBFs, known for their compact support, smoothness, and positive definiteness in approximation…

机器学习 · 计算机科学 2025-07-16 Majid Darehmiraki

Catastrophic forgetting remains a significant challenge to continual learning for decades. While recent works have proposed effective methods to mitigate this problem, they mainly focus on the algorithmic side. Meanwhile, we do not fully…

机器学习 · 计算机科学 2023-10-03 Qingfeng Lan , A. Rupam Mahmood

We evaluate whether features extracted from the activation of a deep convolutional network trained in a fully supervised fashion on a large, fixed set of object recognition tasks can be re-purposed to novel generic tasks. Our generic tasks…

计算机视觉与模式识别 · 计算机科学 2013-10-08 Jeff Donahue , Yangqing Jia , Oriol Vinyals , Judy Hoffman , Ning Zhang , Eric Tzeng , Trevor Darrell

Activation functions (AF) are necessary components of neural networks that allow approximation of functions, but AFs in current use are usually simple monotonically increasing functions. In this paper, we propose trainable compound AF (TCA)…

机器学习 · 计算机科学 2022-04-28 Paul M. Baggenstoss