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: "structural characteristics of two sender index coding"
  Abstract: This paper studies index coding with two senders. In this setup, source messages are distributed among the senders (possibly with overlapping of messages). In addition, there are multiple receivers, where each receiver having some messages a priori, known as side-information, is requesting one unique message such that each message is requested by only one receiver. Index coding in this setup is called two-sender unicast index coding (TSUIC). The main goal is to find the shortest aggregate encoded messages while allowing all receivers to decode their requested messages. Firstly, we form three independent sub-problems of a TSUIC problem based on whether the requested messages by receivers of those sub-problems are available only in one of the senders or in both senders. Then we express the optimal broadcast rate (the shortest normalized codelength) of the TSUIC problem as a function of the optimal broadcast rates of those independent sub-problems. In this way, we devise the structural characteristics of TSUIC. For the proofs of our results, we apply the notion of confusion graphs and a code-forming technique. To color a confusion graph in TSUIC, we introduce a new graph-coloring approach (different from the normal graph coloring), called two-sender graph coloring, and propose a way of grouping the vertices to analyze the number of colors used. Finally, we determine a class of TSUIC instances where a certain type of side-information can be removed without affecting their optimal broadcast rates.

Connected through hyperedge HE-1 (induced by source paper "linear index coding with multiple senders and extension to a cellular network"):
  with members:
    - "cooperative multi sender index coding"
    - "index coding with erroneous side information"
    - "interlinked cycles for index coding generalizing cycles and cliques"
    - "the single uniprior index coding problem the single sender case and the multi sender extension"
    - "graph theoretic approaches to two sender index coding"
    - "distributed index coding"
    - "three stories on a two sided coin index coding locally recoverable distributed storage and guessing games on graphs"
    - "on critical index coding problems"

Connected through hyperedge HE-2 (induced by source paper "optimal weakly secure linear codes for some classes of the two sender index coding problem"):
  with members:
    - "cooperative multi sender index coding"
    - "on the capacity region for secure index coding"
    - "on the optimal broadcast rate of the two sender unicast index coding problem with fully participated interactions"
    - "index coding rank invariant extensions"
    - "on the capacity for distributed index coding"
    - "coded caching with distributed storage"
    - "secure index coding existence and construction"
    - "the single uniprior index coding problem the single sender case and the multi sender extension"

Connected through hyperedge HE-3 (induced by source paper "fundamental limits of decentralized data shuffling"):
  with members:
    - "coded distributed computing with heterogeneous function assignments"
    - "cascaded coded distributed computing on heterogeneous networks"
    - "embedded index coding"
    - "the exact rate memory tradeoff for caching with uncoded prefetching"
    - "leveraging coding techniques for speeding up distributed computing"
    - "speeding up distributed machine learning using codes"
    - "storage computation and communication a fundamental tradeoff in distributed computing"
    - "coded computing for distributed graph analytics"

Connected through hyperedge HE-4 (induced by source paper "optimal scalar linear codes for some classes of the two sender groupcast index coding problem"):
  with members:
    - "cooperative multi sender index coding"
    - "linear index coding with multiple senders and extension to a cellular network"
    - "on the optimal broadcast rate of the two sender unicast index coding problem with fully participated interactions"
    - "index coding rank invariant extensions"
    - "on the capacity for distributed index coding"
    - "joint latency and cost optimization for erasure coded data center storage"
    - "coded caching with distributed storage"
    - "the single uniprior index coding problem the single sender case and the multi sender extension"

Connected through hyperedge HE-5 (induced by source paper "on the optimal broadcast rate of the two sender unicast index coding problem with fully participated interactions"):
  with members:
    - "cooperative multi sender index coding"
    - "optimal linear broadcast rates of the two sender unicast index coding problem with fully participated interactions"
    - "on the structure of interlinked cycle structures with interlocked outer cycles"
    - "optimal scalar linear codes for some classes of the two sender groupcast index coding problem"
    - "on the capacity for distributed index coding"
    - "joint latency and cost optimization for erasure coded data center storage"
    - "coded caching with distributed storage"
    - "the single uniprior index coding problem the single sender case and the multi sender extension"

Connected through hyperedge HE-6 (induced by source paper "optimal linear broadcast rates of the two sender unicast index coding problem with fully participated interactions"):
  with members:
    - "cooperative multi sender index coding"
    - "optimal scalar linear codes for some classes of the two sender groupcast index coding problem"
    - "on the capacity for distributed index coding"
    - "joint latency and cost optimization for erasure coded data center storage"
    - "coded caching with distributed storage"
    - "the single uniprior index coding problem the single sender case and the multi sender extension"
    - "graph theoretic approaches to two sender index coding"
    - "distributed index coding"

Connected through hyperedge HE-7 (induced by source paper "coded caching with distributed storage"):
  with members:
    - "reduced transmission in multi server coded caching"
    - "optimal scalar linear codes for some classes of the two sender groupcast index coding problem"
    - "coded caching in a multi server system with random topology"
    - "caching and delivery via interference elimination"
    - "caching aided coded multicasting with multiple random requests"
    - "order optimal rate of caching and coded multicasting with random demands"
    - "effect of number of users in multi level coded caching"
    - "improved lower bounds for coded caching"

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)