Classification and Regression with the BigML Dashboard
6.14 Takeaways
This chapter explains fusions in detail. Here is a list of key points:
A fusion is a supervised Machine Learning algorithm used to solve classification and regression problems.
A fusion is built by selecting multiple models in BigML and using to make an evaluation, a single prediction, or a batch prediction (see Figure 6.87 ).
You can create a fusion using models, ensembles, logistic regression and/or deepnets.
You can assign different weights to the models composing a fusion.
All models need to have the same Objective Field.
The PDP view provides a visual way to analyze a field’s impact on predictions given certain values for the rest of the fields.
For classification problems, you get all the objective field class probabilities along with the predicted class.
For regression problems, you get the objective field predicted values.
BigML lists all the models composing the fusion along with their weights.
You need to evaluate your fusion’s performance using data that the fusion has not seen before.
The ultimate goal in building a fusion is being able to make predictions with it.
BigML allows you to quickly make predictions for single instances by providing a form containing the fields used by the fusion, so you can easily set the input data and get an immediate response.
BigML batch predictions allow you to make simultaneous predictions for multiple instances. All you need is the fusion you want to use to make predictions and a dataset containing the instances for which you want to obtain predictions.
You can configure your batch predictions output file settings.
You can download your fusion to perform local predictions.
You can add descriptive information to your fusion (name, description, tags, and category).
You can move your fusions between projects.
You can share your fusions with other people using the secret link.
You can stop your fusions creation by deleting them.
You can permanently delete an existing fusion.
![\includegraphics[width=11cm]{images/fusions/fusion-workflow}](images/img-0649.png)