Proposed matches for opposing viewpoints

Support
#1

In which Wildbook did the issue occur? ACW

What operating system were you using? Win 10

What web browser were you using? latest chrome

What is your role on the site? admin

What happened?
I ran matching for a random sighting and found several instances, even within 1 set of match results, where the viewpoint of the proposed match is the opposite of the viewpoint in the target image.

Here’s the example: Wildbook for Carnivores

I also saw instances of this yesterday with another species but it was during a demo so I didn’t take the time to capture them and send in this report

thanks
Maureen

cc: @PaulK

#2

Hi Maureen,

This was a detection prediction of “down” (rather than the expected prediction of “left”) on the viewpoint, causing it to match against what looks like a rogue’s gallery of other “down” and down-related (mis)predictions.

image
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It may be that “down” is a viewpoint class with insufficient data. If we see a lot of this, then we may eventually need to retrain the model with additional “down” examples or rebalance the dataset to do better at this viewpoint versus others.

With the misprediction of down, the system then actually behaved as designed and filtered on related viewpoints (where they were actual “down” viewpoints or not).

The workaround is to delete the annotation and redraw it manually, setting the correct viewpoint. Let’s monitor for more of these.

Thanks,
Jason