Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Factor Graphs for Quantum Probabilities   A factor-graph representation of quantum-mechanical probabilities (involving
any number of measurements) is proposed. Unlike standard statistical models,
the proposed representation uses auxiliary variables (state variables) that are
not random variables. All joint probability distributions are marginals of some
complex-valued function $q$, and it is demonstrated how the basic concepts of
quantum mechanics relate to factorizations and marginals of $q$.

19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex