olemus
lünklikud andmed
= data in which a relatively high percentage of the variable's cells do not contain actual values

ülevaateid
https://investigate.ai/latimes-crime-classification/walkthrough/sparse-vs-dense-data.html

https://datacadamia.com/modeling/dense_sparse

https://easyba.co/blog/data-analysis/data-analysis-glossary/data-sparsity-data-analysis-explained/

https://ir.lib.uwo.ca/cgi/viewcontent.cgi?article=6514&context=etd

https://stats.stackexchange.com/questions/267322/difference-between-missing-data-and-sparse-data-in-machine-learning-algorithms