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 new achievable rate region for multiple access channel with states"
  Abstract: The problem of reliable communication over the multiple-access channel (MAC) with states is investigated. We propose a new coding scheme for this problem which uses quasi-group codes (QGC). We derive a new computable single-letter characterization of the achievable rate region. As an example, we investigate the problem of doubly-dirty MAC with modulo-$4$ addition. It is shown that the sum-rate $R_1+R_2=1$ bits per channel use is achievable using the new scheme. Whereas, the natural extension of the Gel'fand-Pinsker scheme, sum-rates greater than $0.32$ are not achievable.

Connected through hyperedge HE-1 (induced by source paper "structured mappings and conferencing common information for multiple access channels"):
  with members:
    - "quasi linear codes application to point to point and multi terminal source coding"
    - "distributed simulation of continuous random variables"
    - "exact common information"
    - "on interference networks over finite fields"
    - "achievable rate region for three user discrete broadcast channel based on coset codes"
    - "computing sum of sources over an arbitrary multiple access channel"
    - "the approximate sum capacity of the symmetric gaussian k user interference channel"
    - "interference alignment from degrees of freedom to constant gap capacity approximations"

Connected through hyperedge HE-2 (induced by source paper "how to compute modulo prime power sums"):
  with members:
    - "on the necessity of structured codes for communications over mac with feedback"
    - "trade off between communication and cooperation in the interference channel"
    - "a joint typicality approach to algebraic network information theory"
    - "achievable rate region for three user discrete broadcast channel based on coset codes"
    - "computing sum of sources over an arbitrary multiple access channel"
    - "achievable rate region based on coset codes for multiple access channel with states"
    - "the approximate sum capacity of the symmetric gaussian k user interference channel"
    - "polar codes for the two user multiple access channel"

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)