The "ir" in the name may also relate to ir_datasets , a common Python library used to download and provide a uniform interface to various IR datasets for research.
: Use a tool like 7-Zip or WinRAR to extract the contents. Avoid moving individual files out of their subfolders, as spatial and IR data often rely on strict directory structures.
: They are typically used in Geographic Information Systems (GIS) software like ArcGIS or QGIS for mapping and spatial analysis. Tir_Al_2021-09_to_2021-12.zip
The identifier likely refers to a compressed data archive containing TIGER/Line geographic data or Information Retrieval (IR) datasets released between September and December 2021 .
: 2021 was a significant year for large-scale IR benchmarks, such as the TREC 2021 Deep Learning Track, which released massive passage and document datasets. The "ir" in the name may also relate
The prefix "Tir" or "TIGER" often denotes TIGER/Line Shapefiles, which are core geographic products from the U.S. Census Bureau.
: Once extracted, the .zip will contain multiple files including .shp , .shx , and .dbf which must be kept together to function correctly. 2. Information Retrieval (IR) Datasets : They are typically used in Geographic Information
: If you are using these for machine learning, you would typically use the ir_datasets Python API or CLI to load the data for document ranking or answer extraction tasks. Guide for Using the Data