Amazon Data

Julian McAuley’s group at UCSD has collected several datasets of Amazon ratings and reviews, which LensKit supports.

These sets include:

• 2023 Ratings and Reviews <https://amazon-reviews-2023.github.io/> (recommended for new projects)

• 2018 Ratings and Reviews <https://cseweb.ucsd.edu/~jmcauley/datasets/amazon_v2/> (V2, from 2018)

• 2014 Ratings and Reviews <https://cseweb.ucsd.edu/~jmcauley/datasets/amazon/links.html>

Currently, LensKit supports reading the rating CSV files with lenskit.data.load_amazon_ratings(). The command line tools also support Amazon data.

Note

Several data files from 2014 and 2018 contain duplicates, which currently are not supported.

Data Model

The ratings are in a standard rating interaction on the dataset with a timestamp attribute.