Chrome extension showing Computer Vision confidence

i’m not using the extension myself, but it looks like the raw scores are different than how i remember they were in the past. if i remember correctly:

  1. for species-level suggestions, there was a vision score, which was the raw score based on visual match only, and then there was also a combined score, which was the vision match score adjusted for a nearby factor. if i remember correctly, vision score and combined scores were would have been normalized / scaled so if you summed up each of these scores for all the suggestions, you would get 100.
  2. at a higher-than-species level, there was also a score that represented the summed species-level combined scores associated with the higher-than-species taxon.

what i’m seeing now is different from what i remember in two ways:

  1. the species level combined scores seem just be the visual score multiplied by the nearby factor, not scaled back up so that the total scores sum up to 100.
  2. the higher-than-species score is much greater than 100. it looks like these scores are 100x what i would expect.

so if you’re using the low-red-to-high-green scale in that extension, i would expect that when viewing things using expected nearby only, you would see:

  1. a lot of red where some of the high-confidence species-level scores would have been green in the past (since the combined scores don’t seem to be getting readjusted to total back up to 100).
  2. seemingly random hues for higher-than-species guesses (since they are going beyond the 0 to 100 range expected in the past).

i see some changes to the computer vision from around the end of March (3 weeks ago), which i didn’t dig into very deeply, but which i assume would the source of the differences. i’m not sure what they were attempting to fix here exactly. so i can’t tell if these differences were intentional or not.

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