Update README.md

README.md

@@ -84,4 +84,8 @@ tags:
 - danish-dependency-treebank
 - dane
 - cdt
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+---
+
+# Combined CDT, DDT and DaNE dataset
+This dataset merges the Danish Dependency Treebank ([DDT](https://github.com/UniversalDependencies/UD_Danish-DDT)), Copenhagen Dependency Treebank ([CDT](https://github.com/mbkromann/copenhagen-dependency-treebank) and [DaNE](https://huggingface.co/datasets/alexandrainst/dane) datasets. The DDT contains part-of-speech, dependency and morphology tags and has been further annotated for entities by Alexandra Institute in DaNE. DDT is based on CDT to assign tags consistent with the universal dependencies project ([UD](https://universaldependencies.org/)). However, this process split the data into singular sentences, therefore models could not utilize information across sentence boundaries. This dataset contains merged overlapping documents between CDT and DDT, and additionaly DDT data which was not in the intersection. 
+CDT contains annotations from DaNED for linking entities to known entities and DaCoref, for resolving coreferences.