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13,802
Average Convergence Rate of Evolutionary Algorithms
cs.NE
In evolutionary optimization, it is important to understand how fast evolutionary algorithms converge to the optimum per generation, or their convergence rate. This paper proposes a new measure of the convergence rate, called average convergence rate. It is a normalised geometric mean of the reduction ratio of the fitn...
computer science
13,803
Microscopic approach of a time elapsed neural model
cs.NE
The spike trains are the main components of the information processing in the brain. To model spike trains several point processes have been investigated in the literature. And more macroscopic approaches have also been studied, using partial differential equation models. The main aim of the present article is to build...
computer science
13,804
Memory and information processing in neuromorphic systems
cs.NE
A striking difference between brain-inspired neuromorphic processors and current von Neumann processors architectures is the way in which memory and processing is organized. As Information and Communication Technologies continue to address the need for increased computational power through the increase of cores within ...
computer science
13,805
A review of landmark articles in the field of co-evolutionary computing
cs.NE
Coevolution is a powerful tool in evolutionary computing that mitigates some of its endemic problems, namely stagnation in local optima and lack of convergence in high dimensionality problems. Since its inception in 1990, there are multiple articles that have contributed greatly to the development and improvement of th...
computer science
13,806
Learning Spike time codes through Morphological Learning with Binary Synapses
cs.NE
In this paper, a neuron with nonlinear dendrites (NNLD) and binary synapses that is able to learn temporal features of spike input patterns is considered. Since binary synapses are considered, learning happens through formation and elimination of connections between the inputs and the dendritic branches to modify the s...
computer science
13,807
Solving Problems with Unknown Solution Length at (Almost) No Extra Cost
cs.NE
Most research in the theory of evolutionary computation assumes that the problem at hand has a fixed problem size. This assumption does not always apply to real-world optimization challenges, where the length of an optimal solution may be unknown a priori. Following up on previous work of Cathabard, Lehre, and Yao [F...
computer science
13,808
A Tight Runtime Analysis of the $(1+(λ, λ))$ Genetic Algorithm on OneMax
cs.NE
Understanding how crossover works is still one of the big challenges in evolutionary computation research, and making our understanding precise and proven by mathematical means might be an even bigger one. As one of few examples where crossover provably is useful, the $(1+(\lambda, \lambda))$ Genetic Algorithm (GA) was...
computer science
13,809
A Feature-Based Analysis on the Impact of Set of Constraints for e-Constrained Differential Evolution
cs.NE
Different types of evolutionary algorithms have been developed for constrained continuous optimization. We carry out a feature-based analysis of evolved constrained continuous optimization instances to understand the characteristics of constraints that make problems hard for evolutionary algorithm. In our study, we exa...
computer science
13,810
Learning Representations from Deep Networks Using Mode Synthesizers
cs.NE
Deep learning Networks play a crucial role in the evolution of a vast number of current machine learning models for solving a variety of real world non-trivial tasks. Such networks use big data which is generally unlabeled unsupervised and multi-layered requiring no form of supervision for training and learning data an...
computer science
13,811
ASOC: An Adaptive Parameter-free Stochastic Optimization Techinique for Continuous Variables
cs.NE
Stochastic optimization is an important task in many optimization problems where the tasks are not expressible as convex optimization problems. In the case of non-convex optimization problems, various different stochastic algorithms like simulated annealing, evolutionary algorithms, and tabu search are available. Most ...
computer science
13,812
Evaluation of Genotypic Diversity Measurements Exploited in Real-Coded Representation
cs.NE
Numerous genotypic diversity measures (GDMs) are available in the literature to assess the convergence status of an evolutionary algorithm (EA) or describe its search behavior. In a recent study, the authors of this paper drew attention to the need for a GDM validation framework. In response, this study proposes three ...
computer science
13,813
Developing Postfix-GP Framework for Symbolic Regression Problems
cs.NE
This paper describes Postfix-GP system, postfix notation based Genetic Programming (GP), for solving symbolic regression problems. It presents an object-oriented architecture of Postfix-GP framework. It assists the user in understanding of the implementation details of various components of Postfix-GP. Postfix-GP provi...
computer science
13,814
Design of OFDM radar pulses using genetic algorithm based techniques
cs.NE
The merit of evolutionary algorithms (EA) to solve convex optimization problems is widely acknowledged. In this paper, a genetic algorithm (GA) optimization based waveform design framework is used to improve the features of radar pulses relying on the orthogonal frequency division multiplexing (OFDM) structure. Our opt...
computer science
13,815
Parameter Sensitivity Analysis of Social Spider Algorithm
cs.NE
Social Spider Algorithm (SSA) is a recently proposed general-purpose real-parameter metaheuristic designed to solve global numerical optimization problems. This work systematically benchmarks SSA on a suite of 11 functions with different control parameters. We conduct parameter sensitivity analysis of SSA using advance...
computer science
13,816
Adaptive Chemical Reaction Optimization for Global Numerical Optimization
cs.NE
A newly proposed chemical-reaction-inspired metaheurisic, Chemical Reaction Optimization (CRO), has been applied to many optimization problems in both discrete and continuous domains. To alleviate the effort in tuning parameters, this paper reduces the number of optimization parameters in canonical CRO and develops an ...
computer science
13,817
A Trainable Neuromorphic Integrated Circuit that Exploits Device Mismatch
cs.NE
Random device mismatch that arises as a result of scaling of the CMOS (complementary metal-oxide semi-conductor) technology into the deep submicron regime degrades the accuracy of analogue circuits. Methods to combat this increase the complexity of design. We have developed a novel neuromorphic system called a Trainabl...
computer science
13,818
A neuromorphic hardware architecture using the Neural Engineering Framework for pattern recognition
cs.NE
We present a hardware architecture that uses the Neural Engineering Framework (NEF) to implement large-scale neural networks on Field Programmable Gate Arrays (FPGAs) for performing pattern recognition in real time. NEF is a framework that is capable of synthesising large-scale cognitive systems from subnetworks. We wi...
computer science
13,819
STICK: Spike Time Interval Computational Kernel, A Framework for General Purpose Computation using Neurons, Precise Timing, Delays, and Synchrony
cs.NE
There has been significant research over the past two decades in developing new platforms for spiking neural computation. Current neural computers are primarily developed to mimick biology. They use neural networks which can be trained to perform specific tasks to mainly solve pattern recognition problems. These machin...
computer science
13,820
Neural NILM: Deep Neural Networks Applied to Energy Disaggregation
cs.NE
Energy disaggregation estimates appliance-by-appliance electricity consumption from a single meter that measures the whole home's electricity demand. Recently, deep neural networks have driven remarkable improvements in classification performance in neighbouring machine learning fields such as image classification and ...
computer science
13,821
Multi-objective analysis of computational models
cs.NE
Computational models are of increasing complexity and their behavior may in particular emerge from the interaction of different parts. Studying such models becomes then more and more difficult and there is a need for methods and tools supporting this process. Multi-objective evolutionary algorithms generate a set of tr...
computer science
13,822
A Neural Prototype for a Virtual Chemical Spectrophotometer
cs.NE
A virtual chemical spectrophotometer for the simultaneous analysis of nickel (Ni) and cobalt (Co) was developed based on an artificial neural network (ANN). The developed ANN correlates the respective concentrations of Co and Ni given the absorbance profile of a Co-Ni mixture based on the Beer's Law. The virtual chemic...
computer science
13,823
A Social Spider Algorithm for Solving the Non-convex Economic Load Dispatch Problem
cs.NE
Economic Load Dispatch (ELD) is one of the essential components in power system control and operation. Although conventional ELD formulation can be solved using mathematical programming techniques, modern power system introduces new models of the power units which are non-convex, non-differentiable, and sometimes non-c...
computer science
13,824
On Proportions of Fit Individuals in Population of Evolutionary Algorithm with Tournament Selection
cs.NE
In this paper, we consider a fitness-level model of a non-elitist mutation-only evolutionary algorithm (EA) with tournament selection. The model provides upper and lower bounds for the expected proportion of the individuals with fitness above given thresholds. In the case of so-called monotone mutation, the obtained bo...
computer science
13,825
The Interactive Effects of Operators and Parameters to GA Performance Under Different Problem Sizes
cs.NE
The complex effect of genetic algorithm's (GA) operators and parameters to its performance has been studied extensively by researchers in the past but none studied their interactive effects while the GA is under different problem sizes. In this paper, We present the use of experimental model (1)~to investigate whether ...
computer science
13,826
INsight: A Neuromorphic Computing System for Evaluation of Large Neural Networks
cs.NE
Deep neural networks have been demonstrated impressive results in various cognitive tasks such as object detection and image classification. In order to execute large networks, Von Neumann computers store the large number of weight parameters in external memories, and processing elements are timed-shared, which leads t...
computer science
13,827
Benchmarking of LSTM Networks
cs.NE
LSTM (Long Short-Term Memory) recurrent neural networks have been highly successful in a number of application areas. This technical report describes the use of the MNIST and UW3 databases for benchmarking LSTM networks and explores the effect of different architectural and hyperparameter choices on performance. Signif...
computer science
13,828
Genetic Algorithms for multimodal optimization: a review
cs.NE
In this article we provide a comprehensive review of the different evolutionary algorithm techniques used to address multimodal optimization problems, classifying them according to the nature of their approach. On the one hand there are algorithms that address the issue of the early convergence to a local optimum by di...
computer science
13,829
Population Synthesis via k-Nearest Neighbor Crossover Kernel
cs.NE
The recent development of multi-agent simulations brings about a need for population synthesis. It is a task of reconstructing the entire population from a sampling survey of limited size (1% or so), supplying the initial conditions from which simulations begin. This paper presents a new kernel density estimator for th...
computer science
13,830
A Cognitive Architecture Based on a Learning Classifier System with Spiking Classifiers
cs.NE
Learning Classifier Systems (LCS) are population-based reinforcement learners that were originally designed to model various cognitive phenomena. This paper presents an explicitly cognitive LCS by using spiking neural networks as classifiers, providing each classifier with a measure of temporal dynamism. We employ a co...
computer science
13,831
Evolving Unipolar Memristor Spiking Neural Networks
cs.NE
Neuromorphic computing --- brainlike computing in hardware --- typically requires myriad CMOS spiking neurons interconnected by a dense mesh of nanoscale plastic synapses. Memristors are frequently citepd as strong synapse candidates due to their statefulness and potential for low-power implementations. To date, plenti...
computer science
13,832
A Telescopic Binary Learning Machine for Training Neural Networks
cs.NE
This paper proposes a new algorithm based on multi-scale stochastic local search with binary representation for training neural networks. In particular, we study the effects of neighborhood evaluation strategies, the effect of the number of bits per weight and that of the maximum weight range used for mapping binary ...
computer science
13,833
A compact aVLSI conductance-based silicon neuron
cs.NE
We present an analogue Very Large Scale Integration (aVLSI) implementation that uses first-order lowpass filters to implement a conductance-based silicon neuron for high-speed neuromorphic systems. The aVLSI neuron consists of a soma (cell body) and a single synapse, which is capable of linearly summing both the excita...
computer science
13,834
A Reconfigurable Mixed-signal Implementation of a Neuromorphic ADC
cs.NE
We present a neuromorphic Analogue-to-Digital Converter (ADC), which uses integrate-and-fire (I&F) neurons as the encoders of the analogue signal, with modulated inhibitions to decohere the neuronal spikes trains. The architecture consists of an analogue chip and a control module. The analogue chip comprises two scan c...
computer science
13,835
Training of CC4 Neural Network with Spread Unary Coding
cs.NE
This paper adapts the corner classification algorithm (CC4) to train the neural networks using spread unary inputs. This is an important problem as spread unary appears to be at the basis of data representation in biological learning. The modified CC4 algorithm is tested using the pattern classification experiment and ...
computer science
13,836
Transfer learning approach for financial applications
cs.NE
Artificial neural networks learn how to solve new problems through a computationally intense and time consuming process. One way to reduce the amount of time required is to inject preexisting knowledge into the network. To make use of past knowledge, we can take advantage of techniques that transfer the knowledge learn...
computer science
13,837
Regular expressions for decoding of neural network outputs
cs.NE
This article proposes a convenient tool for decoding the output of neural networks trained by Connectionist Temporal Classification (CTC) for handwritten text recognition. We use regular expressions to describe the complex structures expected in the writing. The corresponding finite automata are employed to build a dec...
computer science
13,838
Some Theorems for Feed Forward Neural Networks
cs.NE
In this paper we introduce a new method which employs the concept of "Orientation Vectors" to train a feed forward neural network and suitable for problems where large dimensions are involved and the clusters are characteristically sparse. The new method is not NP hard as the problem size increases. We `derive' the met...
computer science
13,839
Deep Boltzmann Machines in Estimation of Distribution Algorithms for Combinatorial Optimization
cs.NE
Estimation of Distribution Algorithms (EDAs) require flexible probability models that can be efficiently learned and sampled. Deep Boltzmann Machines (DBMs) are generative neural networks with these desired properties. We integrate a DBM into an EDA and evaluate the performance of this system in solving combinatorial o...
computer science
13,840
A hybrid COA$ε$-constraint method for solving multi-objective problems
cs.NE
In this paper, a hybrid method for solving multi-objective problem has been provided. The proposed method is combining the {\epsilon}-Constraint and the Cuckoo algorithm. First the multi objective problem transfers into a single-objective problem using $\epsilon$-Constraint, then the Cuckoo optimization algorithm will ...
computer science
13,841
Multi-objective Differential Evolution with Helper Functions for Constrained Optimization
cs.NE
Solving constrained optimization problems by multi-objective evolutionary algorithms has scored tremendous achievements in the last decade. Standard multi-objective schemes usually aim at minimizing the objective function and also the degree of constraint violation simultaneously. This paper proposes a new multi-object...
computer science
13,842
Generative Adversarial Networks in Estimation of Distribution Algorithms for Combinatorial Optimization
cs.NE
Estimation of Distribution Algorithms (EDAs) require flexible probability models that can be efficiently learned and sampled. Generative Adversarial Networks (GAN) are generative neural networks which can be trained to implicitly model the probability distribution of given data, and it is possible to sample this distri...
computer science
13,843
An Asynchronous Implementation of the Limited Memory CMA-ES
cs.NE
We present our asynchronous implementation of the LM-CMA-ES algorithm, which is a modern evolution strategy for solving complex large-scale continuous optimization problems. Our implementation brings the best results when the number of cores is relatively high and the computational complexity of the fitness function is...
computer science
13,844
A novel mutation operator based on the union of fitness and design spaces information for Differential Evolution
cs.NE
Differential Evolution (DE) is one of the most successful and powerful evolutionary algorithms for global optimization problem. The most important operator in this algorithm is mutation operator which parents are selected randomly to participate in it. Recently, numerous papers are tried to make this operator more inte...
computer science
13,845
Differential Evolution with Generalized Mutation Operator for Parameters Optimization in Gene Selection for Cancer Classification
cs.NE
Differential Evolution (DE) proved to be one of the most successful evolutionary algorithms for global optimization purposes in continuous problems. The core operator in DE is mutation which can provide the algorithm with both exploration and exploitation. In this article, a new notation for DE is proposed which has a ...
computer science
13,846
Nonlinear memory capacity of parallel time-delay reservoir computers in the processing of multidimensional signals
cs.NE
This paper addresses the reservoir design problem in the context of delay-based reservoir computers for multidimensional input signals, parallel architectures, and real-time multitasking. First, an approximating reservoir model is presented in those frameworks that provides an explicit functional link between the reser...
computer science
13,847
Exploring the Space of Adversarial Images
cs.NE
Adversarial examples have raised questions regarding the robustness and security of deep neural networks. In this work we formalize the problem of adversarial images given a pretrained classifier, showing that even in the linear case the resulting optimization problem is nonconvex. We generate adversarial images using ...
computer science
13,848
Evolutionary Landscape and Management of Population Diversity
cs.NE
The search ability of an Evolutionary Algorithm (EA) depends on the variation among the individuals in the population [3, 4, 8]. Maintaining an optimal level of diversity in the EA population is imperative to ensure that progress of the EA search is unhindered by premature convergence to suboptimal solutions. Clearer u...
computer science
13,849
Increasing Behavioral Complexity for Evolved Virtual Creatures with the ESP Method
cs.NE
Since their introduction in 1994 (Sims), evolved virtual creatures (EVCs) have employed the coevolution of morphology and control to produce high-impact work in multiple fields, including graphics, evolutionary computation, robotics, and artificial life. However, in contrast to fixed-morphology creatures, there has bee...
computer science
13,850
Spiking Analog VLSI Neuron Assemblies as Constraint Satisfaction Problem Solvers
cs.NE
Solving constraint satisfaction problems (CSPs) is a notoriously expensive computational task. Recently, it has been proposed that efficient stochastic solvers can be obtained through appropriately configured spiking neural networks performing Markov Chain Monte Carlo (MCMC) sampling. The possibility to run such models...
computer science
13,851
Turing Computation with Recurrent Artificial Neural Networks
cs.NE
We improve the results by Siegelmann & Sontag (1995) by providing a novel and parsimonious constructive mapping between Turing Machines and Recurrent Artificial Neural Networks, based on recent developments of Nonlinear Dynamical Automata. The architecture of the resulting R-ANNs is simple and elegant, stemming from it...
computer science
13,852
An Analytic Expression of Relative Approximation Error for a Class of Evolutionary Algorithms
cs.NE
An important question in evolutionary computation is how good solutions evolutionary algorithms can produce. This paper aims to provide an analytic analysis of solution quality in terms of the relative approximation error, which is defined by the error between 1 and the approximation ratio of the solution found by an e...
computer science
13,853
Stochastic Synapses Enable Efficient Brain-Inspired Learning Machines
cs.NE
Recent studies have shown that synaptic unreliability is a robust and sufficient mechanism for inducing the stochasticity observed in cortex. Here, we introduce Synaptic Sampling Machines, a class of neural network models that uses synaptic stochasticity as a means to Monte Carlo sampling and unsupervised learning. Sim...
computer science
13,854
Recurrent Neural Networks Hardware Implementation on FPGA
cs.NE
Recurrent Neural Networks (RNNs) have the ability to retain memory and learn data sequences. Due to the recurrent nature of RNNs, it is sometimes hard to parallelize all its computations on conventional hardware. CPUs do not currently offer large parallelism, while GPUs offer limited parallelism due to sequential compo...
computer science
13,855
MOEA/D-GM: Using probabilistic graphical models in MOEA/D for solving combinatorial optimization problems
cs.NE
Evolutionary algorithms based on modeling the statistical dependencies (interactions) between the variables have been proposed to solve a wide range of complex problems. These algorithms learn and sample probabilistic graphical models able to encode and exploit the regularities of the problem. This paper investigates t...
computer science
13,856
Critical Parameters in Particle Swarm Optimisation
cs.NE
Particle swarm optimisation is a metaheuristic algorithm which finds reasonable solutions in a wide range of applied problems if suitable parameters are used. We study the properties of the algorithm in the framework of random dynamical systems which, due to the quasi-linear swarm dynamics, yields analytical results fo...
computer science
13,857
Evolutionary algorithms
cs.NE
This manuscript contains an outline of lectures course "Evolutionary Algorithms" read by the author in Omsk State University n.a. F.M.Dostoevsky. The course covers Canonic Genetic Algorithm and various other genetic algorithms as well as evolutionary strategies, genetic programming, tabu search and the class of evoluti...
computer science
13,858
rnn : Recurrent Library for Torch
cs.NE
The rnn package provides components for implementing a wide range of Recurrent Neural Networks. It is built withing the framework of the Torch distribution for use with the nn package. The components have evolved from 3 iterations, each adding to the flexibility and capability of the package. All component modules inhe...
computer science
13,859
On randomization of neural networks as a form of post-learning strategy
cs.NE
Today artificial neural networks are applied in various fields - engineering, data analysis, robotics. While they represent a successful tool for a variety of relevant applications, mathematically speaking they are still far from being conclusive. In particular, they suffer from being unable to find the best configurat...
computer science
13,860
Duelist Algorithm: An Algorithm Inspired by How Duelist Improve Their Capabilities in a Duel
cs.NE
This paper proposes an optimization algorithm based on how human fight and learn from each duelist. Since this algorithm is based on population, the proposed algorithm starts with an initial set of duelists. The duel is to determine the winner and loser. The loser learns from the winner, while the winner try their new ...
computer science
13,861
Cleaning Schedule Optimization of Heat Exchanger Networks Using Particle Swarm Optimization
cs.NE
Oil refinery is one of industries that require huge energy consumption. The today technology advance requires energy saving. Heat integration is a method used to minimize the energy comsumption though the implementation of Heat Exchanger Network (HEN). CPT is one of types of Heat Exchanger Network (HEN) that functions ...
computer science
13,862
Triplet Spike Time Dependent Plasticity: A floating-gate Implementation
cs.NE
Synapse plays an important role of learning in a neural network; the learning rules which modify the synaptic strength based on the timing difference between the pre- and post-synaptic spike occurrence is termed as Spike Time Dependent Plasticity (STDP). The most commonly used rule posits weight change based on time di...
computer science
13,863
An Online Unsupervised Structural Plasticity Algorithm for Spiking Neural Networks
cs.NE
In this article, we propose a novel Winner-Take-All (WTA) architecture employing neurons with nonlinear dendrites and an online unsupervised structural plasticity rule for training it. Further, to aid hardware implementations, our network employs only binary synapses. The proposed learning rule is inspired by spike tim...
computer science
13,864
Level-Based Analysis of Genetic Algorithms for Combinatorial Optimization
cs.NE
The paper is devoted to upper bounds on run-time of Non-Elitist Genetic Algorithms until some target subset of solutions is visited for the first time. In particular, we consider the sets of optimal solutions and the sets of local optima as the target subsets. Previously known upper bounds are improved by means of drif...
computer science
13,865
Digital Genesis: Computers, Evolution and Artificial Life
cs.NE
The application of evolution in the digital realm, with the goal of creating artificial intelligence and artificial life, has a history as long as that of the digital computer itself. We illustrate the intertwined history of these ideas, starting with the early theoretical work of John von Neumann and the pioneering ex...
computer science
13,866
Computing factorized approximations of Pareto-fronts using mNM-landscapes and Boltzmann distributions
cs.NE
NM-landscapes have been recently introduced as a class of tunable rugged models. They are a subset of the general interaction models where all the interactions are of order less or equal $M$. The Boltzmann distribution has been extensively applied in single-objective evolutionary algorithms to implement selection and s...
computer science
13,867
Synthesis of recurrent neural networks for dynamical system simulation
cs.NE
We review several of the most widely used techniques for training recurrent neural networks to approximate dynamical systems, then describe a novel algorithm for this task. The algorithm is based on an earlier theoretical result that guarantees the quality of the network approximation. We show that a feedforward neural...
computer science
13,868
Diversity Enhancement for Micro-Differential Evolution
cs.NE
The differential evolution (DE) algorithm suffers from high computational time due to slow nature of evaluation. In contrast, micro-DE (MDE) algorithms employ a very small population size, which can converge faster to a reasonable solution. However, these algorithms are vulnerable to a premature convergence as well as ...
computer science
13,869
Feedforward Sequential Memory Networks: A New Structure to Learn Long-term Dependency
cs.NE
In this paper, we propose a novel neural network structure, namely \emph{feedforward sequential memory networks (FSMN)}, to model long-term dependency in time series without using recurrent feedback. The proposed FSMN is a standard fully-connected feedforward neural network equipped with some learnable memory blocks in...
computer science
13,870
An Improved Intelligent Agent for Mining Real-Time Databases Using Modified Cortical Learning Algorithms
cs.NE
Cortical Learning Algorithms based on the Hierarchical Temporal Memory, HTM have been developed by Numenta Incorporation from which variations and modifications are currently being investigated upon. HTM offers better promises as a future computational model of the neocortex the seat of intelligence in the brain. Curre...
computer science
13,871
A Fuzzy MLP Approach for Non-linear Pattern Classification
cs.NE
In case of decision making problems, classification of pattern is a complex and crucial task. Pattern classification using multilayer perceptron (MLP) trained with back propagation learning becomes much complex with increase in number of layers, number of nodes and number of epochs and ultimate increases computational ...
computer science
13,872
Conversion of Artificial Recurrent Neural Networks to Spiking Neural Networks for Low-power Neuromorphic Hardware
cs.NE
In recent years the field of neuromorphic low-power systems that consume orders of magnitude less power gained significant momentum. However, their wider use is still hindered by the lack of algorithms that can harness the strengths of such architectures. While neuromorphic adaptations of representation learning algori...
computer science
13,873
Orthogonal Echo State Networks and stochastic evaluations of likelihoods
cs.NE
We report about probabilistic likelihood estimates that are performed on time series using an echo state network with orthogonal recurrent connectivity. The results from tests using synthetic stochastic input time series with temporal inference indicate that the capability of the network to infer depends on the balance...
computer science
13,874
A continuum among logarithmic, linear, and exponential functions, and its potential to improve generalization in neural networks
cs.NE
We present the soft exponential activation function for artificial neural networks that continuously interpolates between logarithmic, linear, and exponential functions. This activation function is simple, differentiable, and parameterized so that it can be trained as the rest of the network is trained. We hypothesize ...
computer science
13,875
Unsupervised Regenerative Learning of Hierarchical Features in Spiking Deep Networks for Object Recognition
cs.NE
We present a spike-based unsupervised regenerative learning scheme to train Spiking Deep Networks (SpikeCNN) for object recognition problems using biologically realistic leaky integrate-and-fire neurons. The training methodology is based on the Auto-Encoder learning model wherein the hierarchical network is trained lay...
computer science
13,876
Computing with hardware neurons: spiking or classical? Perspectives of applied Spiking Neural Networks from the hardware side
cs.NE
While classical neural networks take a position of a leading method in the machine learning community, spiking neuromorphic systems bring attention and large projects in neuroscience. Spiking neural networks were shown to be able to substitute networks of classical neurons in applied tasks. This work explores recent ha...
computer science
13,877
Reducing training requirements through evolutionary based dimension reduction and subject transfer
cs.NE
Training Brain Computer Interface (BCI) systems to understand the intention of a subject through Electroencephalogram (EEG) data currently requires multiple training sessions with a subject in order to develop the necessary expertise to distinguish signals for different tasks. Conventionally the task of training the su...
computer science
13,878
A Feature-Based Prediction Model of Algorithm Selection for Constrained Continuous Optimisation
cs.NE
With this paper, we contribute to the growing research area of feature-based analysis of bio-inspired computing. In this research area, problem instances are classified according to different features of the underlying problem in terms of their difficulty of being solved by a particular algorithm. We investigate the im...
computer science
13,879
Associative Long Short-Term Memory
cs.NE
We investigate a new method to augment recurrent neural networks with extra memory without increasing the number of network parameters. The system has an associative memory based on complex-valued vectors and is closely related to Holographic Reduced Representations and Long Short-Term Memory networks. Holographic Redu...
computer science
13,880
Learning Over Long Time Lags
cs.NE
The advantage of recurrent neural networks (RNNs) in learning dependencies between time-series data has distinguished RNNs from other deep learning models. Recently, many advances are proposed in this emerging field. However, there is a lack of comprehensive review on memory models in RNNs in the literature. This paper...
computer science
13,881
Greedy Ants Colony Optimization Strategy for Solving the Curriculum Based University Course Timetabling Problem
cs.NE
Timetabling is a problem faced in all higher education institutions. The International Timetabling Competition (ITC) has published a dataset that can be used to test the quality of methods used to solve this problem. A number of meta-heuristic approaches have obtained good results when tested on the ITC dataset, howeve...
computer science
13,882
A Nonparametric Framework for Quantifying Generative Inference on Neuromorphic Systems
cs.NE
Restricted Boltzmann Machines and Deep Belief Networks have been successfully used in probabilistic generative model applications such as image occlusion removal, pattern completion and motion synthesis. Generative inference in such algorithms can be performed very efficiently on hardware using a Markov Chain Monte Car...
computer science
13,883
Firefly Algorithm for optimization problems with non-continuous variables: A Review and Analysis
cs.NE
Firefly algorithm is a swarm based metaheuristic algorithm inspired by the flashing behavior of fireflies. It is an effective and an easy to implement algorithm. It has been tested on different problems from different disciplines and found to be effective. Even though the algorithm is proposed for optimization problems...
computer science
13,884
Deep Spiking Networks
cs.NE
We introduce an algorithm to do backpropagation on a spiking network. Our network is "spiking" in the sense that our neurons accumulate their activation into a potential over time, and only send out a signal (a "spike") when this potential crosses a threshold and the neuron is reset. Neurons only update their states wh...
computer science
13,885
Significance Driven Hybrid 8T-6T SRAM for Energy-Efficient Synaptic Storage in Artificial Neural Networks
cs.NE
Multilayered artificial neural networks (ANN) have found widespread utility in classification and recognition applications. The scale and complexity of such networks together with the inadequacies of general purpose computing platforms have led to a significant interest in the development of efficient hardware implemen...
computer science
13,886
Multiplier-less Artificial Neurons Exploiting Error Resiliency for Energy-Efficient Neural Computing
cs.NE
Large-scale artificial neural networks have shown significant promise in addressing a wide range of classification and recognition applications. However, their large computational requirements stretch the capabilities of computing platforms. The fundamental components of these neural networks are the neurons and its sy...
computer science
13,887
On Complex Valued Convolutional Neural Networks
cs.NE
Convolutional neural networks (CNNs) are the cutting edge model for supervised machine learning in computer vision. In recent years CNNs have outperformed traditional approaches in many computer vision tasks such as object detection, image classification and face recognition. CNNs are vulnerable to overfitting, and a l...
computer science
13,888
Real time error detection in metal arc welding process using Artificial Neural Netwroks
cs.NE
Quality assurance in production line demands reliable weld joints. Human made errors is a major cause of faulty production. Promptly Identifying errors in the weld while welding is in progress will decrease the post inspection cost spent on the welding process. Electrical parameters generated during welding, could able...
computer science
13,889
A Stochastic Approach to STDP
cs.NE
We present a digital implementation of the Spike Timing Dependent Plasticity (STDP) learning rule. The proposed digital implementation consists of an exponential decay generator array and a STDP adaptor array. On the arrival of a pre- and post-synaptic spike, the STDP adaptor will send a digital spike to the decay gene...
computer science
13,890
Adaptive Parameter Selection in Evolutionary Algorithms by Reinforcement Learning with Dynamic Discretization of Parameter Range
cs.NE
Online parameter controllers for evolutionary algorithms adjust values of parameters during the run of an evolutionary algorithm. Recently a new efficient parameter controller based on reinforcement learning was proposed by Karafotias et al. In this method ranges of parameters are discretized into several intervals bef...
computer science
13,891
A Draft Memory Model on Spiking Neural Assemblies
cs.NE
A draft memory model (DM) for neural networks with spike propagation delay (SNNwD) is described. Novelty in this approach are that the DM learns immediately, with stimuli presented once, without synaptic weight changes, and without external learning algorithm. Basal on this model is to trap spikes within neural loops. ...
computer science
13,892
Convolutional Networks for Fast, Energy-Efficient Neuromorphic Computing
cs.NE
Deep networks are now able to achieve human-level performance on a broad spectrum of recognition tasks. Independently, neuromorphic computing has now demonstrated unprecedented energy-efficiency through a new chip architecture based on spiking neurons, low precision synapses, and a scalable communication network. Here,...
computer science
13,893
Hybrid Ant Colony Optimization in solving Multi-Skill Resource-Constrained Project Scheduling Problem
cs.NE
In this paper Hybrid Ant Colony Optimization (HAntCO) approach in solving Multi--Skill Resource Constrained Project Scheduling Problem (MS--RCPSP) has been presented. We have proposed hybrid approach that links classical heuristic priority rules for project scheduling with Ant Colony Optimization (ACO). Furthermore, a ...
computer science
13,894
Adaptive Computation Time for Recurrent Neural Networks
cs.NE
This paper introduces Adaptive Computation Time (ACT), an algorithm that allows recurrent neural networks to learn how many computational steps to take between receiving an input and emitting an output. ACT requires minimal changes to the network architecture, is deterministic and differentiable, and does not add any n...
computer science
13,895
Dataflow Matrix Machines as a Generalization of Recurrent Neural Networks
cs.NE
Dataflow matrix machines are a powerful generalization of recurrent neural networks. They work with multiple types of arbitrary linear streams, multiple types of powerful neurons, and allow to incorporate higher-order constructions. We expect them to be useful in machine learning and probabilistic programming, and in t...
computer science
13,896
Application of artificial neural networks and genetic algorithms for crude fractional distillation process modeling
cs.NE
This work presents the application of the artificial neural networks, trained and structurally optimized by genetic algorithms, for modeling of crude distillation process at PKN ORLEN S.A. refinery. Models for the main fractionator distillation column products were developed using historical data. Quality of the fracti...
computer science
13,897
Fitness-based Adaptive Control of Parameters in Genetic Programming: Adaptive Value Setting of Mutation Rate and Flood Mechanisms
cs.NE
This paper concerns applications of genetic algorithms and genetic programming to tasks for which it is difficult to find a representation that does not map to a highly complex and discontinuous fitness landscape. In such cases the standard algorithm is prone to getting trapped in local extremes. The paper proposes sev...
computer science
13,898
Biobjective Performance Assessment with the COCO Platform
cs.NE
This document details the rationales behind assessing the performance of numerical black-box optimizers on multi-objective problems within the COCO platform and in particular on the biobjective test suite bbob-biobj. The evaluation is based on a hypervolume of all non-dominated solutions in the archive of candidate sol...
computer science
13,899
Resource allocation using metaheuristic search
cs.NE
This research is focused on solving problems in the area of software project management using metaheuristic search algorithms and as such is research in the field of search based software engineering. The main aim of this research is to evaluate the performance of different metaheuristic search techniques in resource a...
computer science
13,900
LSTM with Working Memory
cs.NE
Previous RNN architectures have largely been superseded by LSTM, or "Long Short-Term Memory". Since its introduction, there have been many variations on this simple design. However, it is still widely used and we are not aware of a gated-RNN architecture that outperforms LSTM in a broad sense while still being as simpl...
computer science
13,901
Efficiency Evaluation of Character-level RNN Training Schedules
cs.NE
We present four training and prediction schedules from the same character-level recurrent neural network. The efficiency of these schedules is tested in terms of model effectiveness as a function of training time and amount of training data seen. We show that the choice of training and prediction schedule potentially h...
computer science