Opinion

Interview Advice

Just in time for the 2019-2020 interview season, I’m resurfacing posts with interview advice including asking good questions during interviews and preparing interview talks.

Sparse Versus Scarce

Sometimes the term sparse is used to refer to a matrix that has a large fraction of missing entries, but the more typical usage of that term is to refer to a matrix that has a large fraction of zero entries. We instead recommend the term scarce for a large amount of missing data and discuss various scenarios.