Img Intrigue Method

Working with electronic health records

inTrigue is a standardised repeatable methodology that produces robust models despite the challenges of real-world messy, gappy, sparse and unstructured data, which is how electronic health records (EHRs) are presented.

Developing computational models capable of detecting rare disease patients in population-scale databases such as electronic health records (EHRs) is challenging for several reasons, perhaps the most daunting of which being the limited number of already-diagnosed, ‘labelled’ patients from which to learn.

We overcome this obstacle with a novel lightly-supervised algorithm that leverages unlabelled and/or unreliably-labelled patient data – which is typically plentiful – to facilitate model induction. Importantly, we can prove the algorithm is safe. Adding unlabelled/unreliably-labelled data to the learning procedure produces models which are usually more accurate, and guaranteed never to be less accurate, than models learned from reliably-labelled data alone.

Volv's methods are shown to substantially outperform state-of-the-art models in patient-finding.

Img Volv vs Miotto NT

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