Abstract

The main goal of the analysis of microbial ecology is to understand the relationship between Earth’s microbial community and their functions in the environment. This paper presents a proof-of-concept research to develop a bioclimatic modeling approach that leverages artificial intelligence techniques to identify the microbial species in a river as a function of physicochemical parameters. Feature reduction and selection are both utilized in the data preprocessing owing to the scarce of available data points collected and missing values of physicochemical attributes from a river in Southeast China. A bio-inspired metaheuristic optimized machine learner, which supports the adjustment to the multiple-output prediction form, is used in bioclimatic modeling. The accuracy of prediction and applicability of the model can help microbiologists and ecologists in quantifying the predicted microbial species for further experimental planning with minimal expenditure, which is become one of the most serious issues when facing dramatic changes of environmental conditions caused by global warming. This work demonstrates a neoteric approach for potential use in predicting preliminary microbial structures in the environment.

Highlights

  • Microorganisms play an important role in mediating global biochemical cycling

  • This paper develops a hybrid multi-output model for predicting various microbial communities, which integrates an optimization algorithm, called “adjusted particle swarm optimization”, to least squares support vector regression, which is a form of support vector machine; it is developed in MATLAB

  • Despite the limited data available, the hybrid multi-input multi-output model is a satisfactory model of the microbial community in the river of interest, based on psychochemical factors, as evidenced by the performance measures (MAAPE, MAE, and R2), which show the acceptability of the multi-output prediction

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Summary

Introduction

Microorganisms play an important role in mediating global biochemical cycling. Understanding the diversity and composition of a microbial community in a particular environment and its controlling factors is a critical goal of the analysis of microbial ecology [1,2,3]. Microbial ecology is the study of the interactions of microorganisms with their environment, each other, and plant and animal species [4,5,6] It includes the study of biogeochemical cycles, symbioses, and the interaction of microbes with anthropogenic phenomena such as climate change and pollution. Microorganisms are the smallest living organisms on Earth, but they are the most abundant as they occupy the entire biosphere They are the most diverse; the majority of them are unknown to scientists [7]. They can be found in every macro- or microenvironment from the surface and depths of the ocean to the skin and digestive systems of humans and animals. They are found in water, soil, and the human gut [8]—they are literally everywhere

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