Perhaps I was wrong to expect mention of explicit discsussion of spectral graph theory? Anyway, always interesting topics to me.
On a related note: Gilbert Strang (MIT) has a relatively new class in the area of Linear Algebra (of course!) and learning: from data: "Matrix Methods in Data Analysis, Signal Processing, and Machine Learning"
> https://ocw.mit.edu/courses/mathematics/18-065-matrix-method...
On a related note: Gilbert Strang (MIT) has a relatively new class in the area of Linear Algebra (of course!) and learning: from data: "Matrix Methods in Data Analysis, Signal Processing, and Machine Learning" > https://ocw.mit.edu/courses/mathematics/18-065-matrix-method...
With Part IV: Special Matrices discussing the Laplacian and Distance matrices as noted in the posted paper. [TOC: https://math.mit.edu/~gs/learningfromdata/dsla_toc.pdf]