# Binary classification with time-series features

I have the following time-series features: Diastolic Blood Pressure, Systolic Blood Pressure, Heart Rate, RR variability and Arterial Blood Pressure. Each of these clinical parameters was measured for 900 seconds during a surgical procedure and after the surgery, the patient was assessed for acute kidney injury: 1(yes) or 0(no).

My training data kind of looks like this: (see below for screenshot)

Patient 1 Time(s) Features AKI

Patient 2 Time(s) Features AKI

and so on.

What approach would I take to utilize this data for the binary classification task?

• try lstm for your ptoblem – Andreas Look Mar 20 '19 at 21:23
• Is there any machine-learning approaches to this? Not too familiar with RNNs. – John Spanos Mar 20 '19 at 21:41
• Somehow related question / answer datascience.stackexchange.com/a/25518/29781 – aivanov Mar 22 '19 at 13:52

I would plot the measurements time $$t$$ and the corresponding measurement 5 to 10 samples for each category. Try to detect some patterns. Possible patterns are the trend (Is the cure growing? Is it linearly? Exponentially?), frequencies of oscillations (Does one category have oscillations with higher magnitude or frequencies? You can use Fast Fourier Transform for this) self similarity of signal (autocorrelation) Then look at means, median, standard deviation, skewness and kurtosis of your signals.