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      Deep learning for Chilean native flora classification: a comparative analysis

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          Abstract

          The limited availability of information on Chilean native flora has resulted in a lack of knowledge among the general public, and the classification of these plants poses challenges without extensive expertise. This study evaluates the performance of several Deep Learning (DL) models, namely InceptionV3, VGG19, ResNet152, and MobileNetV2, in classifying images representing Chilean native flora. The models are pre-trained on Imagenet. A dataset containing 500 images for each of the 10 classes of native flowers in Chile was curated, resulting in a total of 5000 images. The DL models were applied to this dataset, and their performance was compared based on accuracy and other relevant metrics. The findings highlight the potential of DL models to accurately classify images of Chilean native flora. The results contribute to enhancing the understanding of these plant species and fostering awareness among the general public. Further improvements and applications of DL in ecology and biodiversity research are discussed.

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          Most cited references47

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          The meaning and use of the area under a receiver operating characteristic (ROC) curve.

          A representation and interpretation of the area under a receiver operating characteristic (ROC) curve obtained by the "rating" method, or by mathematical predictions based on patient characteristics, is presented. It is shown that in such a setting the area represents the probability that a randomly chosen diseased subject is (correctly) rated or ranked with greater suspicion than a randomly chosen non-diseased subject. Moreover, this probability of a correct ranking is the same quantity that is estimated by the already well-studied nonparametric Wilcoxon statistic. These two relationships are exploited to (a) provide rapid closed-form expressions for the approximate magnitude of the sampling variability, i.e., standard error that one uses to accompany the area under a smoothed ROC curve, (b) guide in determining the size of the sample required to provide a sufficiently reliable estimate of this area, and (c) determine how large sample sizes should be to ensure that one can statistically detect differences in the accuracy of diagnostic techniques.
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            Going deeper with convolutions

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              Very Deep Convolutional Networks for Large-Scale Image Recognition

              In this work we investigate the effect of the convolutional network depth on its accuracy in the large-scale image recognition setting. Our main contribution is a thorough evaluation of networks of increasing depth using an architecture with very small (3x3) convolution filters, which shows that a significant improvement on the prior-art configurations can be achieved by pushing the depth to 16-19 weight layers. These findings were the basis of our ImageNet Challenge 2014 submission, where our team secured the first and the second places in the localisation and classification tracks respectively. We also show that our representations generalise well to other datasets, where they achieve state-of-the-art results. We have made our two best-performing ConvNet models publicly available to facilitate further research on the use of deep visual representations in computer vision.
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                Author and article information

                Contributors
                Journal
                Front Plant Sci
                Front Plant Sci
                Front. Plant Sci.
                Frontiers in Plant Science
                Frontiers Media S.A.
                1664-462X
                11 September 2023
                2023
                : 14
                : 1211490
                Affiliations
                [1] 1Department of Computer Science and Information Technology, Universidad del Bío Bío , Chillán, Chile
                [2] 2School of Computer and Information Engineering, Universidad del Bío-Bío , Chillán, Chile
                Author notes

                Edited by: Changcai Yang, Fujian Agriculture and Forestry University, China

                Reviewed by: Esa Prakasa, National Research and Innovation Agency (BRIN) of Indonesia, Indonesia; Chuan Lu, Aberystwyth University, United Kingdom

                *Correspondence: Carola Figueroa-Flores, cfigueroa@ 123456ubiobio.cl
                Article
                10.3389/fpls.2023.1211490
                10520280
                37767291
                80d191be-493b-4159-806b-a56704004638
                Copyright © 2023 Figueroa-Flores and San-Martin

                This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

                History
                : 24 April 2023
                : 15 August 2023
                Page count
                Figures: 6, Tables: 6, Equations: 6, References: 48, Pages: 13, Words: 7082
                Funding
                Funded by: Universidad del Bío-Bío , doi 10.13039/501100008785;
                Funded by: Universidad del Bío-Bío , doi 10.13039/501100008785;
                Funded by: Agencia Nacional de Investigación y Desarrollo , doi 10.13039/501100020884;
                Categories
                Plant Science
                Original Research
                Custom metadata
                Technical Advances in Plant Science

                Plant science & Botany
                image classification,chilean native flora,convolutional neural network,deep learning,transfer learning

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