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I am trying to predict the probability of a disease by using audio and images, the audio and the images do not come from the same source. I am thinking of combining the outputs (maybe average them) of two models one utilizing image data to calculate the probability the other using audio data. I am feeling unsure of this approach as I will not be able to verify the final combined output. Will the outcomes be reliable, or should I use a different approach?

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You can try to fuse the image and audio data. You can fuse in different ways:

1) Early fusion - fusion at feature level

2) Late fusion - fusion at output level (similar to your idea)

Here is some papers for your reference:

Look, Listen and Learn https://arxiv.org/pdf/1705.08168.pdf

Learn to Combine Modalities in Multimodal Deep Learning https://arxiv.org/pdf/1805.11730.pdf

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  • $\begingroup$ Thanks for the answer, the problem is that I am using audio and the visual data from two different datasets and I will not be able evaluate the accuracy of the final output. $\endgroup$
    – ayushdubey
    Commented Jun 8, 2020 at 6:39
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    $\begingroup$ It would probably help if you could give some idea about the datasets and their labels. There are also papers on weak supervision if that is applicable. $\endgroup$
    – Anshul G.
    Commented Jun 15, 2020 at 17:25

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