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Periocular recognition has gained attention recently due to demands of increased robustness of face or iris in less controlled scenarios. We present a new system for eye detection based on complex symmetry filters, which has the advantage…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Fernando Alonso-Fernandez , Josef Bigun

Photonic neural networks benefit from both the high channel capacity- and the wave nature of light acting as an effective weighting mechanism through linear optics. The neuron's activation function, however, requires nonlinearity which can…

Representation learning has recently been successfully used to create vector representations of entities in language learning, recommender systems and in similarity learning. Graph embeddings exploit the locality structure of a graph and…

Machine Learning · Computer Science 2020-02-24 Shalin Shah , Venkataramana Kini

Artificial neural networks have diverged far from their early inspiration in neurology. In spite of their technological and commercial success, they have several shortcomings, most notably the need for a large number of training examples…

Neural and Evolutionary Computing · Computer Science 2019-12-04 J. Campbell Scott , Thomas F. Hayes , Ahmet S. Ozcan , Winfried W. Wilcke

Neural networks are commonly trained to make predictions through learning algorithms. Contrastive Hebbian learning, which is a powerful rule inspired by gradient backpropagation, is based on Hebb's rule and the contrastive divergence…

Machine Learning · Computer Science 2018-06-21 Georgios Detorakis , Travis Bartley , Emre Neftci

Neuromorphic chip refers to an unconventional computing architecture that is modelled on biological brains. It is ideally suited for processing sensory data for intelligence computing, decision-making or context cognition. Despite rapid…

Emerging Technologies · Computer Science 2016-09-09 Shuchao Qin , Fengqiu Wang , Yujie Liu , Qing Wan , Xinran Wang , Yongbing Xu , Yi Shi , Xiaomu Wang , Rong Zhang

Hebbian theory seeks to explain how the neurons in the brain adapt to stimuli, to enable learning. An interesting feature of Hebbian learning is that it is an unsupervised method and as such, does not require feedback, making it suitable in…

Neurons and Cognition · Quantitative Biology 2022-06-07 Jakub Fil , Neil Dalchau , Dominique Chu

Associative memory is a fundamental function in the brain. Here, we generalize the standard associative memory model to include long-range Hebbian interactions at the learning stage, corresponding to a large synaptic integration window. In…

Disordered Systems and Neural Networks · Physics 2021-12-21 Jianwen Zhou , Zijian Jiang , Tianqi Hou , Ziming Chen , K Y Michael Wong , Haiping Huang

A novel algorithm for tunable compression to within the precision of reproduction targets, or storage, is proposed. The new algorithm is termed the `Perceptron Algorithm', which utilises simple existing concepts in a novel way, has multiple…

Computer Vision and Pattern Recognition · Computer Science 2007-05-23 Vassilios S. Vassiliadis

The notion of a Brain-Computer Interface system is the acquisition of signals from the brain, processing them, and translating them into commands. The study concentrated on a specific sort of brain signal known as Motor Imagery EEG signals,…

Neurons and Cognition · Quantitative Biology 2023-08-22 Vimal W , Akshansh Gupta

We present a simple and effective image super-resolution algorithm that imposes an image formation constraint on the deep neural networks via pixel substitution. The proposed algorithm first uses a deep neural network to estimate…

Image and Video Processing · Electrical Eng. & Systems 2020-03-31 Jinshan Pan , Yang Liu , Deqing Sun , Jimmy Ren , Ming-Ming Cheng , Jian Yang , Jinhui Tang

Nowadays, Information Photonics is extensively studied and sees applications in many fields. The interest in this breakthrough technology is mainly stimulated by the possibility of achieving real-time data processing for high-bandwidth…

Emerging Technologies · Computer Science 2023-02-22 Emiliano Staffoli , Davide Bazzanella , Stefano Biasi , Giovanni Donati , Mattia Mancinelli , Paolo Bettotti , Lorenzo Pavesi

Neuromorphic systems that employ advanced synaptic learning rules, such as the three-factor learning rule, require synaptic devices of increased complexity. Herein, a novel neoHebbian artificial synapse utilizing ReRAM devices has been…

Networks of interconnected neurons communicating through spiking signals offer the bedrock of neural computations. Our brains spiking neural networks have the computational capacity to achieve complex pattern recognition and cognitive…

Neural and Evolutionary Computing · Computer Science 2024-12-06 Naresh Ravichandran , Anders Lansner , Pawel Herman

Over the last few years, large neural generative models, capable of synthesizing semantically rich passages of text or producing complex images, have recently emerged as a popular representation of what has come to be known as ``generative…

Neurons and Cognition · Quantitative Biology 2023-11-07 Alexander Ororbia , Mary Alexandria Kelly

Neural networks are prone to learning shortcuts -- they often model simple correlations, ignoring more complex ones that potentially generalize better. Prior works on image classification show that instead of learning a connection to object…

Machine Learning · Computer Science 2021-01-18 Axel Sauer , Andreas Geiger

In this paper, we described and developed a framework for Multilayer Perceptron (MLP) to work on low level image processing, where MLP will be used to perform image super-resolution. Meanwhile, MLP are trained with different types of images…

Computer Vision and Pattern Recognition · Computer Science 2012-12-24 Kah Keong Chua , Yong Haur Tay

Understanding the information processing roles of cortical circuits is an outstanding problem in neuroscience and artificial intelligence. The theoretical setting of Bayesian inference has been suggested as a framework for understanding…

Neurons and Cognition · Quantitative Biology 2018-08-06 Dileep George , Alexander Lavin , J. Swaroop Guntupalli , David Mely , Nick Hay , Miguel Lazaro-Gredilla

We present a learned image compression system based on GANs, operating at extremely low bitrates. Our proposed framework combines an encoder, decoder/generator and a multi-scale discriminator, which we train jointly for a generative learned…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Eirikur Agustsson , Michael Tschannen , Fabian Mentzer , Radu Timofte , Luc Van Gool

We present an interactive approach to train a deep neural network pixel classifier for the segmentation of neuronal structures. An interactive training scheme reduces the extremely tedious manual annotation task that is typically required…

Computer Vision and Pattern Recognition · Computer Science 2016-10-31 Felix Gonda , Verena Kaynig , Ray Thouis , Daniel Haehn , Jeff Lichtman , Toufiq Parag , Hanspeter Pfister