Top Traders Unplugged cover image

SI231: The Perfect Fit for Trend Following ft. Richard Brennan

Top Traders Unplugged

00:00

What Is Selection Bias?

Neil Smith: When you talk about these different types of fitting so to speak it reminds me kind of listening to the central banks at the moment about a hard landing, a soft landing or no landing. If you start doing something to the data that can also change the outcome significantly I guess. So we're just going to be aware of all of these things particularly aware of what means to have an out of a fit system because inevitably when we undertake back tests and we're looking for the best models this is where another very important thing we need to consider comes into this overfitting term - selection bias.

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