This dataset was used in the 2025 LongEval Information Retrieval Lab, organized at CLEF. Full info at https://clef-longeval.github.io/

The collection comprises queries and documents sourced from the Qwant search engine. The user-issued queries focus on selected trending topics. Documents were chosen based on these queries using Qwant's click model, with additional randomly selected documents from Qwant's index. Data collection occurred from June 2022 to February 2023, resulting in 9,000 training queries and 18 million associated documents. Relevance assessments, derived from the Qwant click model, are provided for these queries. The collection includes the original French version of the webpages and queries. 

This data set contains both the training and the test data.

The relevance assessments for the test topics used in the LongEval 2025 Lab, WebRetrieval task are contained in the file longeval_web_test_qrels.zip