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: "feasible alphabets for communicating the sum of sources over a network"
  Abstract: We consider directed acyclic {\em sum-networks} with $m$ sources and $n$ terminals where the sources generate symbols from an arbitrary alphabet field $F$, and the terminals need to recover the sum of the sources over $F$. We show that for any co-finite set of primes, there is a sum-network which is solvable only over fields of characteristics belonging to that set. We further construct a sum-network where a scalar solution exists over all fields other than the binary field $F_2$. We also show that a sum-network is solvable over a field if and only if its reverse network is solvable over the same field.

Connected through hyperedge HE-1 (induced by source paper "on the solvability of 3s nt sum network a region decomposition and weak decentralized code method"):
  with members:
    - "on network coding for sum networks"
    - "network coding for computing cut set bounds"
    - "communicating the sum of sources over a network"
    - "some bounds on the capacity of communicating the sum of sources"
    - "some results on communicating the sum of sources over a network"
    - "on distributed computation in noisy random planar networks"

Connected through hyperedge HE-2 (induced by source paper "network coding for computing cut set bounds"):
  with members:
    - "communicating the sum of sources over a network"
    - "cascade multiterminal source coding"
    - "some bounds on the capacity of communicating the sum of sources"
    - "information theoretic bounds for multiround function computation in collocated networks"
    - "geographic gossip efficient aggregation for sensor networks"
    - "fast distributed algorithms for computing separable functions"

Connected through hyperedge HE-3 (induced by source paper "communicating the sum of sources over a network"):
  with members:
    - "on the multiple unicast capacity of 3 source 3 terminal directed acyclic networks"
    - "on network coding for sum networks"
    - "a note on the multiple unicast capacity of directed acyclic networks"
    - "on the solvability of 3 source 3 terminal sum networks"
    - "some results on communicating the sum of sources over a network"

Connected through hyperedge HE-4 (induced by source paper "on the solvability of 3 source 3 terminal sum networks"):
  with members:
    - "communicating the sum of sources over a network"
    - "a simple necessary and sufficient condition for the double unicast problem"
    - "some bounds on the capacity of communicating the sum of sources"
    - "some results on communicating the sum of sources over a network"
    - "on distributed computation in noisy random planar networks"

Connected through hyperedge HE-5 (induced by source paper "some bounds on the capacity of communicating the sum of sources"):
  with members:
    - "communicating the sum of sources over a network"
    - "some results on communicating the sum of sources over a network"
    - "on distributed computation in noisy random planar networks"

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)