Search Results for author: Varun Kumar Ojha

Found 8 papers, 2 papers with code

ACO for Continuous Function Optimization: A Performance Analysis

no code implementations6 Jul 2017 Varun Kumar Ojha, Ajith Abraham, Vaclav Snasel

A comprehensive performance analysis of the underlying parameters such as: selection strategy, distance measure metric and pheromone evaporation rate of the ACO suggests that the Roulette Wheel Selection strategy enhances the performance of the ACO due to its ability to provide non-uniformity and adequate diversity in the selection of a solution.

Simultaneous Optimization of Neural Network Weights and Active Nodes using Metaheuristics

no code implementations6 Jul 2017 Varun Kumar Ojha, Ajith Abraham, Vaclav Snasel

Optimization of neural network (NN) significantly influenced by the transfer function used in its active nodes.

Convergence Analysis of Backpropagation Algorithm for Designing an Intelligent System for Sensing Manhole Gases

no code implementations6 Jul 2017 Varun Kumar Ojha, Paramartha Dutta, Atal Chaudhuri, Hiranmay Saha

The cross sensitivity is a crucial issue to this problem and it is viewed as pattern recognition and noise reduction problem.

Ensemble of heterogeneous flexible neural trees using multiobjective genetic programming

1 code implementation16 May 2017 Varun Kumar Ojha, Ajith Abraham, Václav Snášel

Machine learning algorithms are inherently multiobjective in nature, where approximation error minimization and model's complexity simplification are two conflicting objectives.

Classification Time Series +1

Metaheuristic Design of Feedforward Neural Networks: A Review of Two Decades of Research

no code implementations16 May 2017 Varun Kumar Ojha, Ajith Abraham, Václav Snášel

The FNN optimization is often viewed from the various perspectives: the optimization of weights, network architecture, activation nodes, learning parameters, learning environment, etc.

Evolutionary Algorithms

Predictive modeling of die filling of the pharmaceutical granules using the flexible neural tree

no code implementations16 May 2017 Varun Kumar Ojha, Serena Schiano, Chuan-Yu Wu, Václav Snášel, Ajith Abraham

It was found that the FNT-based CI model (for both CV methods) performed much better than other CI models.

Identifying hazardousness of sewer pipeline gas mixture using classification methods: a comparative study

no code implementations16 May 2017 Varun Kumar Ojha, Paramartha Dutta, Atal Chaudhuri

The primary goal of this work was to identify the hazardousness of sewer pipeline to offer safe and non-hazardous access to sewer pipeline workers so that the human fatalities, which occurs due to the toxic exposure of sewer gas components, can be avoided.

General Classification

Multiobjective Programming for Type-2 Hierarchical Fuzzy Inference Trees

1 code implementation16 May 2017 Varun Kumar Ojha, Vaclav Snasel, Ajith Abraham

Hence, the proposed HFIT is an efficient and competitive alternative to the other FISs for function approximation and feature selection.

Classification feature selection +2

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