The tRI is a comprehensive and reliable index of hotel ratings. The tRI takes available ratings from our partners and other sources across the web and uses an algorithm to aggregate them, providing a dependable and impartial score.
The tRI is designed to compare all types of accommodation on one level in a clear and fair manner, by converting all covered sources to trivago's 10-point index.The tRI is not merely an average of numerical reviews. It is an index based on a mathematical algorithm that considers the individual ratings, the number of reviews that the rating is based on, and the recency of the reviews.The algorithm takes into account situations in which a hotel has only one rating source, in comparison to another hotel with a broad range of rating sources, and adjusts the calculation accordingly.