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 matrix completion approach to linear index coding problem"
  Abstract: In this paper, a general algorithm is proposed for rate analysis and code design of linear index coding problems. Specifically a solution for minimum rank matrix completion problem over finite fields representing the linear index coding problem is devised in order to find the optimum transmission rate given vector length and size of the field. The new approach can be applied to both scalar and vector linear index coding.

Connected through hyperedge HE-1 (induced by source paper "a field size independent code construction for groupcast index coding problems"):
  with members:
    - "interlinked cycles for index coding generalizing cycles and cliques"
    - "critical graphs in index coding"
    - "optimal index codes for a class of multicast networks with receiver side information"
    - "error correction for index coding with side information"

Connected through hyperedge HE-2 (induced by source paper "the optimality of partial clique covering for index coding"):
  with members:
    - "interlinked cycles for index coding generalizing cycles and cliques"
    - "local partial clique covers for index coding"
    - "approximate capacity of index coding for some classes of graphs"
    - "the single uniprior index coding problem the single sender case and the multi sender extension"
    - "tdma is optimal for all unicast dof region of tim if and only if topology is chordal bipartite"
    - "fractional coloring orthogonal access achieves all unicast capacity dof region of index coding tim if and only if network topology is chordal"
    - "structural properties of index coding capacity using fractional graph theory"
    - "storage capacity of repairable networks"

Connected through hyperedge HE-3 (induced by source paper "preserving privacy while broadcasting k limited access schemes"):
  with members:
    - "private broadcasting an index coding approach"
    - "private information retrieval from coded databases with colluding servers"
    - "the capacity of private information retrieval from coded databases"
    - "index coding and network coding via rank minimization"
    - "the oblivious transfer capacity of the wiretapped binary erasure channel"
    - "on the security of index coding with side information"

Connected through hyperedge HE-4 (induced by source paper "low rank matrix completion for topological interference management by riemannian pursuit"):
  with members:
    - "alternating minimization algorithms for hybrid precoding in millimeter wave mimo systems"
    - "large scale convex optimization for dense wireless cooperative networks"
    - "large scale convex optimization for ultra dense cloud ran"
    - "when does an ensemble of matrices with randomly scaled rows lose rank"
    - "feasibility of interference alignment for the mimo interference channel"
    - "topological interference management with transmitter cooperation"
    - "topological interference management through index coding"
    - "cellular interference alignment"

Connected through hyperedge HE-5 (induced by source paper "low rank matrix completion for mobile edge caching in fog ran via riemannian optimization"):
  with members:
    - "low rank matrix completion for topological interference management by riemannian pursuit"
    - "fog computing based radio access networks issues and challenges"
    - "mobility aware caching for content centric wireless networks modeling and methodology"
    - "content centric sparse multicast beamforming for cache enabled cloud ran"
    - "wireless communications in the era of big data"
    - "large scale convex optimization for dense wireless cooperative networks"
    - "large scale convex optimization for ultra dense cloud ran"
    - "topological interference management through index coding"

Connected through hyperedge HE-6 (induced by source paper "index coding and network coding via rank minimization"):
  with members:
    - "on a duality between recoverable distributed storage and index coding"
    - "quasi linear network coding"
    - "topological interference management through index coding"
    - "bounding multiple unicasts through index coding and locally repairable codes"
    - "on the capacity region for index coding"
    - "index coding capacity how far can one go with only shannon inequalities"
    - "understanding alternating minimization for matrix completion"
    - "decentralized coded caching attains order optimal memory rate tradeoff"

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)