Duplicate prevention: Notify observers if their image checksums match others on the site.

Feature Requests
42

I agree, it’s going off topic. This topic is a feature request, not a question - and the motivation for the request is that sometimes the same photo is uploaded multiple times for the same organism. The feature is not intended to prevent people from using the same image for multiple organisms, just to ask them if they need to upload the photo again.

While I agree it’s better to upload one photo to use for observations of multiple organism within the photo, having the same photo uploaded twice for two different organisms isn’t a serious problem. What this comes down to, I think, is will the benefits of some sort of messaging asking users if they want to upload a photo again be worth the confusion it may cause?

2 Likes
44

The confusion is still active. We need a better way from iNat to manage duplicates. For the sake of taxon specialists who housekeep their chosen slice of iNat. If they are using iNat data for research, quality control is worth their time and effort. But the ‘frass’ is not.

Meanwhile I have a workaround using an Observation Field for Duplicates. Which can be searched for and retrieved.

1 Like
45

Recently, I found groups (of 2 or 3 observations each) of observations from different observers with the same photo. This also should be avoided. Moreover, it breaks several rules: copyright + an observation should reflect a person encountering an organism.

https://www.inaturalist.org/comments?q=different%20observers

1 Like
46

For your first example - neither has EXIF data. Perhaps the photo is from a third person. Google cannot find a previous published image.

47

I often see these generated as part of class projects, e.g. students sharing their photos from group outings with each other. Mostly they generate similar observations of the same individual by each taking their own pictures but sometimes even the pictures are the same. I assume maybe only one student in the group got a picture but they all did the observation together as a group and post several instances under different user names to all get credit for the class activity. This type of duplicate is probably something best addressed via communicating the issue to the teacher instructing them, if it is possible to find out who that is.

Sometimes these types of observations are generated outside of a class context, e.g. family members or hiking buddies sharing observations with each other. There is a feature request related to that.

2 Likes