Using No-Code AI to Accurately Predict Stroke

Use Cases

This simple example shows how AI can be applied to solve seemingly intractable problems, and how anyone can build these solutions without needing to be a data scientist.

Predicting stroke can give early warning to stroke patients and stroke specialists, potentially saving lives.

However, for stroke prediction models to be truly valuable, they need to be deployed in the real-world. What good is a prediction of stroke if it's not seen on-time, and by the right people to be acted upon?

In this guide, we’ll explore how to deploy our model via Zapier, a no-code automation tool.

1. Building a stroke prediction model

To start, simply make a Pro account on Obviously.AI — you get a 14-day free trial, with no credit card needed to sign up.

Once you log-in, you’ll see a dashboard with an “Add Dataset” icon on the left. For this example, we upload a simple tabular dataset from Kaggle, which features 5,110 patient records with 12 descriptive columns.

Our goal is to predict a column called stroke, which is the value 0 if a stroke did not occur, and the value 1 if a stroke did occur.

After clicking to upload a CSV file, you’ll need to verify the dataset, and simply check off that the first row is the column names and that all requirements are met.

Now, we select the column we want to predict, which is called “stroke.” In the background, a series of machine learning models compete to create the most accurate predictions for stroke.

And we’re done! Now, we can also see how various attributes impact the probability of stroke. The main drivers discovered by the automated machine learning models were age and gender.

Let’s move on to building a Zapier sequence, so you can deploy predictions in the real world, and predict stroke.

2. Building a Zapier Flow

Now, make a free Zapier account, if you haven’t yet. We’ll start by connecting Zapier to a dataset in Google Sheets. We’ll select “New Spreadsheet Row in Google Sheets” as the trigger to activate a Zapier sequence.

After selecting that trigger, I simply located my demo Google Sheet, which I titled “New Data.”

This sheet should have the exact same column names and data types as the file I used to make the predictive model (minus the actual target column of “stroke”).

For instance, since my training data had columns like gender and age, and so on, I use those exact columns in this Google Sheet.

Next, we’ll select “Webhook,” and then “Custom Request.” This is how we’ll integrate with Obviously AI.

To set up the Custom Request, add in these details:

The data field is the most important, which requires matching up the column names in your data with the column names used in your model. Check the documentation if you’re unsure!

To set it all up, you’ll also need your Report ID and API key. Your API key can be found in your account, which gets added as a “Header” in Zapier. To get the Report ID, head to the “Export Predictions” tab in Obviously AI, and click on the shareable report link.

The Report ID is the ID you see in that URL. In the example above, it’s “cff97990–7385–11eb-9a76-af3704ed1fd7.” As you can see in the documentation, this gets added in the bottom of the “Data” field in Zapier.

Now, we can test our Zap, which sends data from our new data sheet to our stroke prediction model, and we’ll get the stroke probability as an output. With these predictions in Zapier, we can now do anything we want with them.

For now, let’s just update our sheet with the estimated stroke probability. This can be done with the action titled “Update Spreadsheet Row in Google Sheets.”

Then, simply add the probability created in the aforementioned webhook.

Now, let’s take it a step further. We can create a “filter” in Zapier to send an email notification when the predicted stroke is above a threshold that we set. I set up a filter that gets activated when the stroke probability is higher than .7.

If the stroke probability is higher than .7, we can automatically send a notification email so that relevant specialists are aware of the situation.

Summary

Zapier is a powerful way to automate practically anything in your workflow. With Obviously AI, you can integrate the power of machine learning to create AI-driven workflows, including to predict stroke and give early warning to stroke patients and stroke specialists, potentially saving lives.

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