Changes

Jump to navigation Jump to search
137 bytes added ,  12:22, 23 December 2020
Line 21: Line 21:  
There are many products for which we have no [https://world.openfoodfacts.org/cgi/search.pl?action=process&tagtype_0=categories&tag_contains_0=contains&tag_0=olive%20oils&tagtype_1=states&tag_contains_1=contains&tag_1=Nutrition%20facts%20to%20be%20completed&sort_by=unique_scans_n&page_size=20 nutritional data]. It is impossible to go through all these by hand. A quick look at these products reveals that some 10% have images of the nutritional tables from which the data can be extracted. Clearly there is a role for Robotoff to play here in automatically extracting the data, or just signalling us that there might be such data.
 
There are many products for which we have no [https://world.openfoodfacts.org/cgi/search.pl?action=process&tagtype_0=categories&tag_contains_0=contains&tag_0=olive%20oils&tagtype_1=states&tag_contains_1=contains&tag_1=Nutrition%20facts%20to%20be%20completed&sort_by=unique_scans_n&page_size=20 nutritional data]. It is impossible to go through all these by hand. A quick look at these products reveals that some 10% have images of the nutritional tables from which the data can be extracted. Clearly there is a role for Robotoff to play here in automatically extracting the data, or just signalling us that there might be such data.
   −
== Interlopers ==
+
== Number of Ingredients ==
 
Are all the products in the [https://world.openfoodfacts.org/category/olive-oils Olive oils category] indeed olive oils. We need to find the products that are not olive oils (the interlopers).
 
Are all the products in the [https://world.openfoodfacts.org/category/olive-oils Olive oils category] indeed olive oils. We need to find the products that are not olive oils (the interlopers).
   −
=== Number of ingredients ===
+
A check is to look at the [https://world.openfoodfacts.org/cgi/search.pl?action=process&tagtype_0=categories&tag_contains_0=contains&tag_0=olive%20oils&sort_by=unique_scans_n&page_size=20&axis_x=ingredients_n&graph_title=Olive%20oils%20(number%20of%20ingredients)&graph=1 number of ingredients]. And it turns out that are some products that seem wrongly classified.
A first check is to look at the [https://world.openfoodfacts.org/cgi/search.pl?action=process&tagtype_0=categories&tag_contains_0=contains&tag_0=olive%20oils&sort_by=unique_scans_n&page_size=20&axis_x=ingredients_n&graph_title=Olive%20oils%20(number%20of%20ingredients)&graph=1 number of ingredients]. And it turns out that are some products that seem wrongly classified.
   
[[File:BD5ADFBE-A639-47CE-87D9-CC1F4273A694.jpg|thumb]]
 
[[File:BD5ADFBE-A639-47CE-87D9-CC1F4273A694.jpg|thumb]]
Note that of the 6118 products only 1967 seem to have ingredients defined.
+
Note that of the 6118 products in the olive oils category only 1967 seem to have ingredients defined. I do not know how to list the products with more than one ingredient. So we have no other choice than find to go through all products, if we want to find these products.
   −
Not sure how I can list the products with more than 1 ingredient.
+
Another way to find interlopers might be by looking at the nutritional values. If a nutritional value is to abnormal, then it might be another type of product.
 
  −
Another way to fin interlopers is by looking for strange nutritional values, but that can also be due to wrongly entered data.
      
== Data quality ==
 
== Data quality ==
3,393

edits

Navigation menu