Update README.md

README.md

@@ -135,10 +135,25 @@ shows the size per language after license information is taken into account. The
 when both license constraints and deduplication are taken into account, which is what is included in the
 dataset.
 
+Note that the sizes displayed here are of the compressed bitcode representation rather
+than textual IR. We see an expansion ratio of 2-5x, averaging around 4x when converting
+from compressed bitcode to textual IR.
+
+## Dataset Construction
+
+Exact details on how the dataset is constructed are available in
+[our paper describing the dataset](https://arxiv.org/abs/2309.15432). The packages for
+v1.0 of the dataset were downloaded and built on 1/12/24-1/13/24.
+
 ## Licensing
 
 The individual modules within the dataset are subject to the licenses of the projects that they come from. License
 information is available in each row, including the SPDX license expression, the license files, and also a link to
 the package source where license information can be further validated.
 
-The curation of these modules is licensed under a CC-BY-4.0 license.
+The curation of these modules is licensed under a CC-BY-4.0 license.
+
+## Contact Info
+
+1. Aiden Grossman ([email protected])
+2. Johannes Doerfert ([email protected])