Multi-output Regression Example with Keras LSTM Network in R

   This tutorial is about how to fit and predict the multi-output regression data with LSTM Network in R. As you may already know, the LSTM ( Long Short-Term Memory) network is a type of recurrent neural network and used to analyze the sequence data. We'll use Keras R interface to implement keras neural network API in R. The tutorial covers:
  1. Preparing the data
  2. Defining the model
  3. Predicting and visualizing the result
  4. Source code listing
We 'll start by loading the required packages of R.

library(keras)
library(caret)

How to Fit Regression Data with CNN Model in R

   CNN (Convolutional Neural Networks) models are mainly useful when we apply them for training a multi-dimensional type of data such as an image. But they are not limited to this purpose only, we can also implement the CNN model for regression data analysis. We saw the CNN model regression with Python in the previous post and in this tutorial, we'll implement the same method in R.
   We use a 1-dimensional convolutional function to apply the CNN model. We need Keras R interface to use the Keras neural network API in R. You need to install it if it is not available on your development environment. The tutorial covers:
  1. Preparing the data
  2. Defining and fitting the model
  3. Predicting and visualizing the results
  4. Source code listing
We'll start by loading the required libraries for this tutorial.

library(keras)
library(caret)

Multi-output Regression Example with Keras Sequential Model in R

   We saw a multi-output regression prediction with Python in the previous post. The same analysis can be done with R too. In this tutorial, we'll learn how to fit and predict multi-output regression data with keras neural networks API in R. We can use Keras R interface to implement keras neural network API in R.
   Multi-output data contains more than one output for a given input data. By setting the appropriate input and output dimensions into the model, we can train and predict the test data with keras deep learning API in R. This tutorial explains how to implement it in the following steps:
  1. Preparing the data
  2. Defining the model
  3. Predicting and visualizing the result
  4. Source code listing
We'll start by loading the required packages of R.

library(keras)
library(caret)

Multi-output Multi-step Regression Example with Keras SimpleRNN in Python

   In previous posts, we saw the multi-output regression data analysis with CNN and LSTM methods. In this tutorial, we'll learn how to implement multi-output and multi-step regression data with Keras SimpleRNN class in Python. This method can be applied to time-series data too. Multi-output data contains more than one output value for a given dataset. To predict data we'll use multiple steps to train the output data. The tutorial covers:
  1. Preparing the data
  2. Defining and fitting the model
  3. Predicting and visualizing the results
  4. Source code listing
We'll start by loading the required libraries of Python and Keras API for this tutorial.

from keras.models import Sequential
from keras.layers import Dense, SimpleRNN
from numpy import array, sqrt, array
from numpy.random import uniform
from numpy import hstack
import matplotlib.pyplot as plt
from sklearn.metrics import mean_squared_error

DataTechNotes Year in Review: 2019

I have no special talent. I am only passionately curious. 
- Albert Einstein

   The year 2019 is coming to an end and now it is time to look back and evaluate our work during the year. First of all, I am grateful for everything this year. I am especially thankful that I've accomplished my publication target for the year and writing my year-end post to my readers.

    In 2019, I published 52 articles on datatechnotes.com. I could keep the persistence in my publications. The quality of the tutorials also has improved compared to the last year.

   This year, we have been discussed various topics on machine learning, deep learning, and data analysis. Particularly, we've tackled the regression analysis, accuracy, NLP, clustering, and deep learning topics. Examples in Python have been increased, about seventy percent of the tutorials were written in Python.

   I'll keep writing the tutorials on topics of machine learning and deep learning next year too. Topics may include NLP, GANs, LSTM networks, and other interesting concepts of data science.

Multi-output Regression Example with Keras LSTM Network in Python

   Multi-output regression data can be fitted and predicted by the LSTM network model in Keras deep learning API. This type of data contains more than one output value for given input data.
LSTM (Long Short-Term Memory) network is a type of recurrent neural network and used to analyze sequence data. In this tutorial, we'll briefly learn how to fit and predict multi-output regression data with Keras LSTM model.
The post covers:
  1. Preparing the data
  2. Defining and fitting the model
  3. Predicting and visualizing the results
  4. Source code listing
We'll start by loading the required libraries of Python and Keras API for this tutorial.

from keras.models import Sequential
from keras.layers import Dense, LSTM
from numpy import array
from numpy.random import uniform
from numpy import hstack
import matplotlib.pyplot as plt
from sklearn.model_selection import train_test_split
from sklearn.metrics import mean_squared_error