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t-SNE Manifold Learning Based Visualization: A Human Activity Recognition Approach

  • Ramesh DharavathEmail author
  • G. MadhukarRao
  • Himanshu Khurana
  • Damodar Reddy Edla
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 37)

Abstract

Visualization of data which is enormously generated at present has become one of the major steps in machine learning before applying the classifier on related domain problems. This paper inculcates the visualization and recognition of human activity from n-dimensional space to low-dimensional space by implementing an algorithm and sometimes best termed as a tool called as t-SNE (t-distributed stochastic neighborhood embedding), which is a non-linear algorithm and has been inspired by SNE (stochastic neighbor embedding). This algorithm is applied to build the relationship between various actions done by human, where class label information has been introduced to well represent the actions from similar action class. This comes under a machine learning methodology called manifold learning, where the class label information helps to classify the action done by human. This learning technique uses probabilistic embedding of neighbors from n-dimensional space with low-dimension to find a mapping of data points from one distribution to another distribution. Experimental results and their comparison with other visualization tools like PCA shows the effectiveness of t-SNE algorithm with human activity recognition and MNIST dataset. The results produced by t-SNE algorithm in terms of visualization are always better than many other algorithms.

Keywords

Dimensionality reduction Manifold learning Stochastic neighbor embedding Visualization 

Notes

Acknowledgements

This work is partially supported by the Indian Institute of Technology (ISM), Dhanbad that comes under the administrative and financial control of the Ministry of Human Resource Development (MHRD), Government of India. The authors express their gratitude towards the Department of Computer Science and Engineering at IIT (ISM) for providing all the necessary support to carry out the research work.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Computer Science and EngineeringIndian Institute of Technology (Indian School of Mines)DhanbadIndia
  2. 2.Department of Computer Science and EngineeringNational Institute of TechnologyGoaIndia

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