Search Results for author: Nithin Nagaraj

Found 15 papers, 9 papers with code

Evaluating the Determinants of Mode Choice Using Statistical and Machine Learning Techniques in the Indian Megacity of Bengaluru

no code implementations25 Jan 2024 Tanmay Ghosh, Nithin Nagaraj

A higher travel costs significantly reduce the predicted probability of bus usage compared to other modes (a $0. 66\%$ and $0. 34\%$ reduction using Random Forests and XGBoost model for $10\%$ increase in travel cost).

Decision Making Discrete Choice Models +1

To prune or not to prune : A chaos-causality approach to principled pruning of dense neural networks

no code implementations19 Aug 2023 Rajan Sahu, Shivam Chadha, Nithin Nagaraj, Archana Mathur, Snehanshu Saha

Reducing the size of a neural network (pruning) by removing weights without impacting its performance is an important problem for resource-constrained devices.

Network Pruning

Permutation Decision Trees

no code implementations5 Jun 2023 Harikrishnan N B, Nithin Nagaraj

Unlike Shannon entropy and Gini impurity, structural impurity based on ETC is able to capture order dependencies in the data, thus obtaining potentially different decision trees for different permutations of the same data instances (Permutation Decision Trees).

feature selection

Granger Causality for Compressively Sensed Sparse Signals

no code implementations23 Sep 2022 Aditi Kathpalia, Nithin Nagaraj

In this work, we provide a mathematical proof that structured compressed sensing matrices, specifically Circulant and Toeplitz, preserve causal relationships in the compressed signal domain, as measured by Granger Causality.

Causal Inference Connectivity Estimation +1

Cause-Effect Preservation and Classification using Neurochaos Learning

no code implementations28 Jan 2022 Harikrishnan N B, Aditi Kathpalia, Nithin Nagaraj

Discovering cause-effect from observational data is an important but challenging problem in science and engineering.

Classification Time Series +2

Learning Generalized Causal Structure in Time-series

no code implementations6 Dec 2021 Aditi Kathpalia, Keerti P. Charantimath, Nithin Nagaraj

The science of causality explains/determines 'cause-effect' relationship between the entities of a system by providing mathematical tools for the purpose.

BIG-bench Machine Learning Time Series +1

Fairly Constricted Multi-Objective Particle Swarm Optimization

1 code implementation10 Apr 2021 Anwesh Bhattacharya, Snehanshu Saha, Nithin Nagaraj

It has been well documented that the use of exponentially-averaged momentum (EM) in particle swarm optimization (PSO) is advantageous over the vanilla PSO algorithm.

Fairness

When Noise meets Chaos: Stochastic Resonance in Neurochaos Learning

1 code implementation2 Feb 2021 Harikrishnan NB, Nithin Nagaraj

Inspired by the chaotic firing of neurons and the constructive role of noise in neuronal models, we for the first time connect chaos, noise and learning.

Classification General Classification

Causal Discovery using Compression-Complexity Measures

1 code implementation19 Oct 2020 Pranay SY, Nithin Nagaraj

Lastly, we present two unique applications of the proposed models for causal inference directly from pairs of genome sequences belonging to the SARS-CoV-2 virus.

Causal Discovery Causal Inference

A Neurochaos Learning Architecture for Genome Classification

2 code implementations12 Oct 2020 Harikrishnan NB, Pranay SY, Nithin Nagaraj

Here, we propose a Neurochaos Learning (NL) architecture, where the neurons used to extract features from data are 1D chaotic maps.

Classification Feature Engineering +1

ChaosNet: A Chaos based Artificial Neural Network Architecture for Classification

2 code implementations6 Oct 2019 Harikrishnan Nellippallil Balakrishnan, Aditi Kathpalia, Snehanshu Saha, Nithin Nagaraj

Inspired by chaotic firing of neurons in the brain, we propose ChaosNet -- a novel chaos based artificial neural network architecture for classification tasks.

Classification General Classification

Evolution of Novel Activation Functions in Neural Network Training with Applications to Classification of Exoplanets

3 code implementations1 Jun 2019 Snehanshu Saha, Nithin Nagaraj, Archana Mathur, Rahul Yedida

We present analytical exploration of novel activation functions as consequence of integration of several ideas leading to implementation and subsequent use in habitability classification of exoplanets.

General Classification

A Novel Chaos Theory Inspired Neuronal Architecture

1 code implementation19 May 2019 Harikrishnan N B, Nithin Nagaraj

This work highlights the effectiveness of chaos and its properties for learning and paves the way for chaos-inspired neuronal architectures by closely mimicking the chaotic nature of neurons in the brain.

General Classification

Classification of Periodic, Chaotic and Random Sequences using NSRPS Complexity Measure

1 code implementation22 May 2012 Karthi Balasubramanian, Gayathri R. Prabhu, Lakshmipriya V. K., Maneesha Krishnan, Praveena R., Nithin Nagaraj

For such short data lengths, methods which use entropy measure and traditional lossless compression algorithm like LZ77 [A. Lempel and J. Ziv, IEEE Trans.

Chaotic Dynamics

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