使用转移学习和卷积神经网络与加权损失的玉米疾病分类.
Krisnanda Ahadian1, Novanto Yudistira1, Bayu Rahayudi1
1Informatics Department, Faculty of Computer Science, Brawijaya University, 65145, Malang, Indonesia.
Heliyon
|November 11, 2024
概括
本研究使用卷积神经网络 (CNN) 准确分类玉米植物疾病. 像VGG16和EfficientNet这样的机器学习模型实现了高准确度,有助于及时进行作物管理和疾病干预.
科学领域:
- 农业科学 农业科学
- 计算机科学 计算机科学
- 机器学习 机器学习
背景情况:
- 玉米是食品和动物料的重要作物,但由于疾病管理的延迟,由于作物失败,种植受到威胁.
- 技术进步,特别是机器学习 (ML),为早期发现疾病和干预玉米种植提供了潜在的解决方案.
研究的目的:
- 开发和评估卷积神经网络 (CNN) 模型,以准确分类玉米植物疾病.
- 为了比较不同CNN架构 (ResNet-18,VGG16,EfficientNet) 和玉米疾病识别优化技术的性能.
主要方法:
- 使用了两个不同的玉米植物图像数据集 (4,144张图像,4个类和5,155张图像,7-8个类).
- 在第二个数据集中使用加权交叉损失解决了类不平衡.
- 在ResNet-18,VGG16和EfficientNet架构中进行了实验,采用了随机梯度下降 (SGD) 优化.
主要成果:
- 使用冷层的VGG16在第一个数据集上实现了97.146%的准确性.
- 没有冷层的EfficientNet与加权损失相结合,在第二个不平衡数据集上获得了94.798%的准确性.
- 随机梯度下降 (SGD) 证明是这两个数据集的最佳优化器.
结论:
- CNN模型在对玉米植物疾病进行分类方面表现出高效,有助于农业管理.
- 选择模型架构和处理数据不平衡对于实现玉米疾病识别的最佳性能至关重要.
相关概念视频
Aggregates Classification
305
Aggregate classification is generally based on its size, petrographic characteristics, weight, and source. Size classification ranges from coarse to fine aggregates, defined by the size of the particles. Coarse aggregates are particles that do not pass through ASTM sieve No. 4, and aggregates that pass through the sieve are fine aggregates.
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
Petrographic classification groups aggregates based on common mineralogical characteristics. Some of the common mineral groups found in aggregates are...
305
Classification of Systems-I
169
Linearity is a system property characterized by a direct input-output relationship, combining homogeneity and additivity.
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
Homogeneity dictates that if an input x(t) is multiplied by a constant c, the output y(t) is multiplied by the same constant. Mathematically, this is expressed as:
169
Classification of Systems-II
134
Continuous-time systems have continuous input and output signals, with time measured continuously. These systems are generally defined by differential or algebraic equations. For instance, in an RC circuit, the relationship between input and output voltage is expressed through a differential equation derived from Ohm's law and the capacitor relation,
134
Classification of Signals
403
In signal processing, signals are classified based on various characteristics: continuous-time versus discrete-time, periodic versus aperiodic, analog versus digital, and causal versus noncausal. Each category highlights distinct properties crucial for understanding and manipulating signals.
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
A continuous-time signal holds a value at every instant in time, representing information seamlessly. In contrast, a discrete-time signal holds values only at specific moments, often denoted as x(n), where...
403
Classification of Leukocytes
1.7K
Leukocytes are classified into two groups based on the presence or absence of cytoplasmic granules. Granular leukocytes, which contain granules, belong to the myeloid lineage and are divided into three subtypes: neutrophils, eosinophils, and basophils. These cells are roughly spherical and characterized by the granules in their cytoplasm.
Neutrophils are the most abundant type of granular leukocytes, comprising 50-70% of all leukocytes. They feature small, evenly distributed granules and a...
Neutrophils are the most abundant type of granular leukocytes, comprising 50-70% of all leukocytes. They feature small, evenly distributed granules and a...
1.7K
Reducing Line Loss
144
In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
With a step-up transformer at the source, the voltage is increased, thereby reducing the current in the transmission lines since power loss...
144


