Update README.md

README.md

@@ -16,3 +16,8 @@ Legal and compliance documents, such as regulatory filings, compliance reports,
 | Accounting and Auditing               |    50 |FDIC,III,FASAB,SBOA|
 | Federal Reserve, Chicago Mercantile    |    44 |Federal Reserve, Chicago Mercantile|
 
+# Metrics
+We measure the performance using the **accuracy** score that is calculated as the ratio of accurately identified abbreviations to the total number of abbreviations in the dataset.
+
+# Related tasks
+Regulations Challenge at COLING 2025: https://coling2025regulations.thefin.ai/home