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Summary

DescriptionSimplified neural network training example.svg
English: Simplified example of training a neural network in object detection: The network is trained by multiple images that are known to depict starfish and sea urchins, which are correlated with "nodes" that represent visual aspects, in this case texture and outline. The starfish match with a ringed texture and a star outline, whereas most sea urchins match with a striped texture and oval shape. However, the instance of a ring shaped sea urchin creates a weakly weighted association between them.
Date
Source Own work
Author
Mikael Haggstrom, M.D. Author info
- Reusing images
- Conflicts of interest:
None
Mikael Haggstrom, M.D.

Context

Simplified example of training a neural network in object detection: The network is trained by multiple images that are known to depict starfish and sea urchins, which are correlated with "nodes" that represent visual features. The starfish match with a ringed texture and a star outline, whereas most sea urchins match with a striped texture and oval shape. However, the instance of a ring textured sea urchin creates a weakly weighted association between them.
Subsequent run of the network on an input image (left): The network correctly detects the starfish. However, the weakly weighted association between ringed texture and sea urchin also confers a weak signal to the latter from one of two intermediate nodes. In addition, a shell that was not included in the training gives a weak signal for the oval shape, also resulting in a weak signal for the sea urchin output. These weak signals may result in a false positive result for sea urchin.


Licensing

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Simplified neural network training example

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2 October 2023

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97,864 byte

3bd12067916673a4376cb57b3b092248f7a6b90d

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Date/TimeThumbnailDimensionsUserComment
current18:27, 2 October 2023773 x 884 (96 KB)Mikael HaggstromUploaded a work by {{Mikael Haggstrom|cat=Non-medical diagrams}} from {{Own}} with UploadWizard

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Width218.29454mm
Height249.5381mm