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How are statistics computed?

le octobre 20, 2018

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Architecture Map

French-spoken version with French and English subtitles. This video presents the architecture of the PROSIM database (PROduct SIMilarity) which compares products from the collaborative, free and open database of food products from around the world ( http://world.openfoodfacts.org ). PROSIM is built with Mongo running on a server, and can be queried using its dedicated API . The Tuttifrutti website ( https://tuttifrutti.alwaysdata.net ) uses this API for showing data in a graph with the following available scores: Nutriscore Nova Classification Scores are directly computed and delivered by OpenFoodFacts. The computation for the similarity between 2 products and their score is provided by a file called ComputingInstance.java (1 file per score) whose code is accessible here: Nutriscore Nova Classification

Engine's Statistics <nutriscore> on July 2020

OFF JSON data timestamp: 25/06/2020 # products: 1 398 820 # valid products: 806 780 Running on: Laptop Core i5 2430M (2.4/3 GHz) 8GB RAM, Kubuntu 18.04, 4 cores 64 bits Arch. sub-matrix WIDTH : 7 500 Arch. sub-matrix HEIGHT : 7 500 requester: oric.dev email: oric.dev@iznogoud.neomailbox.ch computing instance db nickname: nutriscore db-name: tuttifrutti_nutriscore first time creation: 16/06/2018 summary: worldwide products based on their nutriscore description (EN): Database aimed at classifying OpenFoodFacts products based on their similarity to each other along with their nutriscore description (other): Base de classification des produits OpenFoodFacts selon leur proximité avec des produits équivalents et leur score nutritionnel (nutriscore) %age of completion: 40.40 # products in db: 423 283 stats panel: not available # intersections computed: {N.(N-1)} 262 961 163 234 (on 650 893 968 400) Min. similarity %age: 75 # intersec

How can I request a new Score database created on my own?

The PROSIM Engine makes it possible to end-users like you to create your own OpenFoodFacts scoring database and to use it live in the OFF-graph website and App. Once you have submitted your Computing Instance file (see below) and after its validation by Admins, you will shortly be able to perform the following tasks with your own database: [A] seeing my database's stats-record in the PROSIM blog now available [B] seeing statistics of my database (size, progression, number of intersections computed, etc.) now available [c] querying my database using the API now available [D] querying my own database by scanning the barcode of a product and getting matching-results in a OFF-graph available on the test environment (clear Browser-Cache!) What do I need? Knowledge

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