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In this paper we describe the use of a new artificial neural network, called the difference boosting neural network (DBNN), for automated classification problems in astronomical data analysis. We illustrate the capabilities of the network…

Astrophysics · Physics 2009-11-07 Ninan Sajeeth Philip , Yogesh Wadadekar , Ajit Kembhavi , K. Babu Joseph

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…

Neural and Evolutionary Computing · Computer Science 2025-07-16 Shreel Golwala

The activation function plays a fundamental role in the artificial neural network learning process. However, there is no obvious choice or procedure to determine the best activation function, which depends on the problem. This study…

Neural and Evolutionary Computing · Computer Science 2021-01-18 Tiago A. E. Ferreira , Marios Mattheakis , Pavlos Protopapas

With the continued innovations of deep neural networks, spiking neural networks (SNNs) that more closely resemble biological brain synapses have attracted attention owing to their low power consumption.However, for continuous data values,…

Neural and Evolutionary Computing · Computer Science 2021-03-02 Naoya Muramatsu , Hai-Tao Yu

This work presents a new spiking neural network (SNN)-based approach for user equipment-base station (UE-BS) association in non-terrestrial networks (NTNs). With the introduction of UAV's in wireless networks, the system architecture…

Signal Processing · Electrical Eng. & Systems 2025-08-06 Vasileios Kouvakis , Stylianos E. Trevlakis , Ioannis Arapakis , Alexandros-Apostolos A. Boulogeorgos

Activation functions are non-linearities in neural networks that allow them to learn complex mapping between inputs and outputs. Typical choices for activation functions are ReLU, Tanh, Sigmoid etc., where the choice generally depends on…

The search for life outside the Solar System is an endeavour of astronomers all around the world. With hundreds of exoplanets being discovered due to advances in astronomy, there is a need to classify the habitability of these exoplanets.…

Neural and Evolutionary Computing · Computer Science 2021-01-19 Sriram Krishna , Niharika Pentapati

We present a domain decomposition-based deep learning method for solving elliptic and parabolic interface problems with discontinuous coefficients in two to ten dimensions. Our Multi-Activation Function (MAF) approach employs two…

Numerical Analysis · Mathematics 2025-12-23 Qijia Zhai

Whereas deep neural network (DNN) is increasingly applied to choice analysis, it is challenging to reconcile domain-specific behavioral knowledge with generic-purpose DNN, to improve DNN's interpretability and predictive power, and to…

Machine Learning · Computer Science 2021-04-06 Shenhao Wang , Baichuan Mo , Jinhua Zhao

Aging population ratios are rising significantly. Meanwhile, smart home based health monitoring services are evolving rapidly to become a viable alternative to traditional healthcare solutions. Such services can augment qualitative analyses…

Artificial Intelligence · Computer Science 2018-09-24 Syed Yusha Kareem , Luca Buoncompagni , Fulvio Mastrogiovanni

Graph Active Learning (GAL), which aims to find the most informative nodes in graphs for annotation to maximize the Graph Neural Networks (GNNs) performance, has attracted many research efforts but remains non-trivial challenges. One major…

Machine Learning · Computer Science 2023-08-21 Tianmeng Yang , Min Zhou , Yujing Wang , Zhengjie Lin , Lujia Pan , Bin Cui , Yunhai Tong

In this paper, a novel swarm intelligent algorithm is proposed called ant nesting algorithm (ANA). The algorithm is inspired by Leptothorax ants and mimics the behavior of ants searching for positions to deposit grains while building a new…

Neural and Evolutionary Computing · Computer Science 2021-12-14 Deeam Najmadeen Hama Rashid , Tarik A. Rashid , Seyedali Mirjalili

Deep neural networks (DNNs) demonstrate outstanding performance across most computer vision tasks. Some critical applications, such as autonomous driving or medical imaging, also require investigation into their behavior and the reasons…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Edouard Yvinec , Arnaud Dapogny , Kevin Bailly , Xavier Fischer

Spiking Neural Networks (SNNs) contain more biologically realistic structures and biologically-inspired learning principles than those in standard Artificial Neural Networks (ANNs). SNNs are considered the third generation of ANNs, powerful…

Neural and Evolutionary Computing · Computer Science 2021-06-01 Tielin Zhang , Shuncheng Jia , Xiang Cheng , Bo Xu

Optical wireless communication offers unprecedented communication speeds that can support the massive use of the Internet on a daily basis. In indoor environments, optical wireless networks are usually multi-user multiple-input…

Signal Processing · Electrical Eng. & Systems 2021-11-30 Ahmad Adnan Qidan , Taisir El-Gorashi1 , Jaafar M. H. Elmirghani

In this paper we propose an extension of the Attention Branch Network (ABN) by using instance segmentation for generating sharper attention maps for action recognition. Methods for visual explanation such as Grad-CAM usually generate blurry…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Tomoya Nitta , Tsubasa Hirakawa , Hironobu Fujiyoshi , Toru Tamaki

Branch-and-bound with preactivation splitting has been shown highly effective for deterministic verification of neural networks. In this paper, we extend this framework to the probabilistic setting. We propose BaB-prob that iteratively…

Machine Learning · Computer Science 2025-10-01 Fangji Wang , Panagiotis Tsiotras

In recent years, deep learning has been a revolution in the field of machine learning, for computer vision in particular. In this approach, a deep (multilayer) artificial neural network (ANN) is trained in a supervised manner using…

Neural and Evolutionary Computing · Computer Science 2019-01-23 Amirhossein Tavanaei , Masoud Ghodrati , Saeed Reza Kheradpisheh , Timothee Masquelier , Anthony S. Maida

Inspired by more detailed modeling of biological neurons, Spiking neural networks (SNNs) have been investigated both as more biologically plausible and potentially more powerful models of neural computation, and also with the aim of…

Neural and Evolutionary Computing · Computer Science 2021-03-24 Bojian Yin , Federico Corradi , Sander M. Bohte

In this paper, we propose novel quaternion activation functions where we modify either the quaternion magnitude or the phase, as an alternative to the commonly used split activation functions. We define criteria that are relevant for…

Machine Learning · Computer Science 2024-06-25 Johannes Pöppelbaum , Andreas Schwung
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