human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "a deterministic annealing approach to witsenhausen s counterexample"
  Abstract: This paper proposes a numerical method, based on information theoretic ideas, to a class of distributed control problems. As a particular test case, the well-known and numerically "over-mined" problem of decentralized control and implicit communication, commonly referred to as Witsenhausen's counterexample, is considered. The method provides a small improvement over the best numerical result so far for this benchmark problem. The key idea is to randomize the zero-delay mappings. which become "soft", probabilistic mappings to be optimized in a deterministic annealing process, by incorporating a Shannon entropy constraint in the problem formulation. The entropy of the mapping is controlled and gradually lowered to zero to obtain deterministic mappings, while avoiding poor local minima. Proposed method obtains new mappings that shed light on the structure of the optimal solution, as well as achieving a small improvement in total cost over the state of the art in numerical approaches to this problem.

Connected through hyperedge HE-1 (induced by source paper "non signaling approximations of stochastic team problems"):
  with members:
    - "a topology for team policies and existence of optimal team policies in stochastic team theory"
    - "belief invariant equilibria in games with incomplete information"
    - "on the existence of optimal policies for a class of static and sequential dynamic teams"

Connected through hyperedge HE-2 (induced by source paper "deterministic annealing optimization for witsenhausen s and related decentralized stochastic control problems"):
  with members:
    - "deterministic annealing based optimization for zero delay source channel coding in networks"

Connected through hyperedge HE-3 (induced by source paper "analog multiple descriptions a zero delay source channel coding approach"):
  with members:
    - "deterministic annealing based optimization for zero delay source channel coding in networks"
    - "on zero delay source channel coding"
    - "a deterministic annealing approach to optimization of zero delay source channel codes"

Connected through hyperedge HE-4 (induced by source paper "on zero delay source channel coding"):
  with members:
    - "optimization of zero delay mappings for distributed coding by deterministic annealing"
    - "a deterministic annealing approach to optimization of zero delay source channel codes"
    - "reduced dimension linear transform coding of correlated signals in networks"
    - "data processing bounds for scalar lossy source codes with side information at the decoder"
    - "on conditions for linearity of optimal estimation"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.IT(Information Theory)