Tag: dags

All the articles with the tag "dags".

• Markov Equivalence: What Your Data Cannot Tell You About Direction

  11 Nov, 2026

  Different causal graphs can imply exactly the same conditional independences, so observational data identifies a class of graphs rather than a single one. What the class shares, what it leaves open, and what it takes to break the tie.

• NO TEARS: How Acyclicity Became Differentiable

  27 Jun, 2026

  Learning the structure of a causal graph from data used to be a combinatorial search over a space that grows superexponentially. One change of variables turned it into gradient descent.