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: "alignment based network coding for two unicast z networks"
  Abstract: In this paper, we study the wireline two-unicast-Z communication network over directed acyclic graphs. The two-unicast-Z network is a two-unicast network where the destination intending to decode the second message has apriori side information of the first message. We make three contributions in this paper: #R##N#1. We describe a new linear network coding algorithm for two-unicast-Z networks over directed acyclic graphs. Our approach includes the idea of interference alignment as one of its key ingredients. For graphs of a bounded degree, our algorithm has linear complexity in terms of the number of vertices, and polynomial complexity in terms of the number of edges. #R##N#2. We prove that our algorithm achieves the rate-pair (1, 1) whenever it is feasible in the network. Our proof serves as an alternative, albeit restricted to two-unicast-Z networks over directed acyclic graphs, to an earlier result of Wang et al. which studied necessary and sufficient conditions for feasibility of the rate pair (1, 1) in two-unicast networks. #R##N#3. We provide a new proof of the classical max-flow min-cut theorem for directed acyclic graphs.

Connected through hyperedge HE-1 (induced by source paper "on the degrees of freedom of two unicast wireless networks with delayed csit"):
  with members:
    - "throughput region of spatially correlated interference packet networks"
    - "two user erasure interference channels with local delayed csit"
    - "informational bottlenecks in two unicast wireless networks with delayed csit"
    - "capacity results for binary fading interference channels with delayed csit"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "wireless network information flow a deterministic approach"
    - "two unicast information flows over linear deterministic networks"
    - "multiple unicast capacity of 2 source 2 sink networks"

Connected through hyperedge HE-2 (induced by source paper "linear network coding for two unicast z networks a commutative algebraic perspective and fundamental limits"):
  with members:
    - "the two unicast problem"
    - "topological interference management through index coding"
    - "fundamental limits of caching"
    - "an equivalence between network coding and index coding"
    - "locally repairable codes"
    - "two unicast information flows over linear deterministic networks"
    - "path gain algebraic formulation for the scalar linear network coding problem"
    - "mission impossible computing the network coding capacity region"

Connected through hyperedge HE-3 (induced by source paper "informational bottlenecks in two unicast wireless networks with delayed csit"):
  with members:
    - "two user erasure interference channels with local delayed csit"
    - "the value of local delayed csit"
    - "capacity results for binary fading interference channels with delayed csit"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "communication through collisions opportunistic utilization of past receptions"
    - "on the degrees of freedom of k user siso interference and x channels with delayed csit"
    - "degrees of freedom region of the mimo interference channel with output feedback and delayed csit"
    - "wireless network information flow a deterministic approach"

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)