What kind of novel dataset are we talking about? Just from the top of my head, you could have encountered eigenvectors/eigenvalues: - if you ever used spectra

What kind of novel dataset are we talking about? Just from the top of my head, you could have encountered eigenvectors/eigenvalues: - if you ever used spectral graph algorithms - if you ever done dimensionality reduction via principal component analysis - if you ever calculated the steady state distribution of a Markov chain