GCS - Global Citation Score shows the Citation Frequency based on the total count in the Web of Science. LCR - Local Cited References shows the count of cited papers within the collection. LCS - Local Citation Score shows the Citation Frequency within the
L. Dietz, S. Bickel, and T. Scheffer. Proceedings of the 24th international conference on Machine learning, page 233--240. New York, NY, USA, ACM, (2007)