Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unifying DAGs and UGs   We introduce a new class of graphical models that generalizes
Lauritzen-Wermuth-Frydenberg chain graphs by relaxing the semi-directed
acyclity constraint so that only directed cycles are forbidden. Moreover, up to
two edges are allowed between any pair of nodes. Specifically, we present
local, pairwise and global Markov properties for the new graphical models and
prove their equivalence. We also present an equivalent factorization property.
Finally, we present a causal interpretation of the new models.

12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas