To overcome these issues there are some steps that can be taken:
Use the CNCI value alongside other indicators to have a picture of performance as a whole and to identify anomalies and data artefacts.
Use larger sets of publications when possible, for example, by extending the time period or expanding the number of subjects to be covered.
Show care when analyzing documents from most recent publication years. Include document from a range of years for a more meaningful analysis.
Limit your analysis to significant research publications by limiting to those papers that have the document type of Article or Review. If appropriate, to aid increased coverage of some fields, the document types of Book Chapters and Conference Proceedings may also be considered.
Always use citation indicators to aid human judgment rather than to replace it.