Open Access

ARTICLE

Improved Shark Smell Optimization Algorithm for Human Action Recognition

by Inzamam Mashood Nasir^1,*, Mudassar Raza¹, Jamal Hussain Shah¹, Muhammad Attique Khan², Yun-Cheol Nam³, Yunyoung Nam^4,*

1 Department of Computer Science, COMSATS University Islamabad, Wah Campus, Wah Cantt, 47040, Pakistan
2 Department of Computer Science, HITEC University, Taxila, Pakistan
3 Department of Architecture, Joongbu University, Goyang, 10279, South Korea
4 Department of ICT Convergence, Soonchunhyang University, Asan, 31538, Korea

* Corresponding Authors: Inzamam Mashood Nasir. Email: ; Yunyoung Nam. Email:

(This article belongs to the Special Issue: Recent Advances in Hyper Parameters Optimization, Features Optimization, and Deep Learning for Video Surveillance and Biometric Applications)

Computers, Materials & Continua 2023, 76(3), 2667-2684. https://doi.org/10.32604/cmc.2023.035214

Received 11 August 2022; Accepted 15 November 2022; Issue published 08 October 2023

Abstract

Human Action Recognition (HAR) in uncontrolled environments targets to recognition of different actions from a video. An effective HAR model can be employed for an application like human-computer interaction, health care, person tracking, and video surveillance. Machine Learning (ML) approaches, specifically, Convolutional Neural Network (CNN) models had been widely used and achieved impressive results through feature fusion. The accuracy and effectiveness of these models continue to be the biggest challenge in this field. In this article, a novel feature optimization algorithm, called improved Shark Smell Optimization (iSSO) is proposed to reduce the redundancy of extracted features. This proposed technique is inspired by the behavior of white sharks, and how they find the best prey in the whole search space. The proposed iSSO algorithm divides the Feature Vector (FV) into subparts, where a search is conducted to find optimal local features from each subpart of FV. Once local optimal features are selected, a global search is conducted to further optimize these features. The proposed iSSO algorithm is employed on nine (9) selected CNN models. These CNN models are selected based on their top-1 and top-5 accuracy in ImageNet competition. To evaluate the model, two publicly available datasets UCF-Sports and Hollywood2 are selected.

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Keywords

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