Preprocessing data is a common first step in the deep learning workflow to prepare raw data in a format that the network can accept. For example, you can preprocess data to enhance desired features or reduce artifacts that can bias the network. For example, you can normalize or remove noise from input data.
You can preprocess sequence input with operations such as normalization by using datastores and functions available in MATLAB® and Deep Learning Toolbox™. Other MATLAB toolboxes offer functions, datastores, and apps for labeling, processing, and augmenting deep learning data. Use specialized tools from other MATLAB toolboxes to process data for domains such as audio, text, and signal processing.
|Transform datastore (Since R2019a)|
|Combine data from multiple datastores (Since R2019a)|
|Datastore to transform underlying datastore (Since R2019a)|
|Datastore to combine data read from multiple underlying datastores (Since R2019a)|
|Pad or truncate sequence data to same length (Since R2021a)|
|Create mini-batches for deep learning (Since R2020b)|
- Import Data into Deep Network Designer
Import and visualize data in Deep Network Designer.
- Sequence Classification Using Deep Learning
This example shows how to classify sequence data using a long short-term memory (LSTM) network.
- Train Network with Numeric Features
This example shows how to create and train a simple neural network for deep learning feature data classification.
- Train Network with Complex-Valued Data
This example shows how to predict the frequency of a complex-valued waveform using a 1-D convolutional neural network.
- Train Sequence Classification Network Using Data With Imbalanced Classes
This example shows how to classify sequences with a 1-D convolutional neural network using class weights to modify the training to account for imbalanced classes.
- Train Network Using Custom Mini-Batch Datastore for Sequence Data
This example shows how to train a deep learning network on out-of-memory sequence data using a custom mini-batch datastore.
- Datastores for Deep Learning
Learn how to use datastores in deep learning applications.
- Deep Learning in MATLAB
Discover deep learning capabilities in MATLAB using convolutional neural networks for classification and regression, including pretrained networks and transfer learning, and training on GPUs, CPUs, clusters, and clouds.
- Deep Learning Tips and Tricks
Learn how to improve the accuracy of deep learning networks.
- Data Sets for Deep Learning
Discover data sets for various deep learning tasks.