LETOR4.0 Downloads
To use the datasets, you must read and accept the online agreement. By using the datasets, you agree to be bound by the terms of its license.
Datasets
| Setting | Datasets | Size |
| Supervised ranking | MQ2007 | ~ 65M |
| MQ2008 | ~ 15M | |
| Semi-supervised ranking | MQ2007-semi | ~ 740M |
| MQ2008-semi | ~ 510M | |
| Rank aggregation | MQ2007-agg | ~ 20M |
| MQ2008-agg | ~ 4M | |
| Listwise ranking | MQ2007-list | ~ 950M |
| MQ2008-list | ~ 670M |
Evaluation tools
The evaluation scripts for LETOR4.0 are a little different from those for LETOR3.0.Please do not use the tools across LETOR3.0 and LETOR4.0.
Evaluation script for supervised ranking, semi-supervised ranking and rank aggregation
Evaluation script for listwise ranking
Significance test script for all the four settings
Low level information
| Data | Size | |
| Meta data | Meta data for MQ2007 query set | ~ 60M |
| Meta data for MQ2008 query set | ~ 50M | |
| Collection info | ~1 k | |
| Relation information | Link graph of Gov2 collection | ~ 480M |
| Sitemap of Gov2 collection | ~ 65M | |
| Similarity for MQ2007 query set | ~ 4.3G | |
| similarity for MQ2008 query set | ~ 4.9G |
