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: "multi file private information retrieval from mds coded databases with colluding servers"
  Abstract: Private information retrieval (PIR) gets renewed attentions in recent years due to its information-theoretic reformulation and its application in distributed storage system (DSS). We study a variant of the information-theoretic and DSS-oriented PIR problem which considers retrieving several files simultaneously, known as the multi-file PIR. In this paper, we give an upper bound of the multi-file PIR capacity (the maximal number of bits privately retrieved per one bit of downloaded bit) for the degenerating cases. We then present two general multi-file PIR schemes according to different ratios of the number of desired files to the total number of files. In particular, if the ratio is at least half, then the rate of our scheme meets the upper bound of the capacity for the degenerating cases and is thus optimal.

Connected through hyperedge HE-1 (induced by source paper "latent variable private information retrieval"):
  with members:
    - "x secure t private information retrieval from mds coded storage with byzantine and unresponsive servers"
    - "the capacity of private information retrieval from heterogeneous uncoded caching databases"
    - "breaking the mds pir capacity barrier via joint storage coding"
    - "robust private information retrieval from coded systems with byzantine and colluding servers"
    - "the capacity of private information retrieval from uncoded storage constrained databases"
    - "an mds pir capacity achieving protocol for distributed storage using non mds linear codes"
    - "private information retrieval from coded storage systems with colluding byzantine and unresponsive servers"
    - "cross subspace alignment and the asymptotic capacity of x secure t private information retrieval"

Connected through hyperedge HE-2 (induced by source paper "cross subspace alignment codes for coded distributed batch computation"):
  with members:
    - "x secure t private information retrieval from mds coded storage with byzantine and unresponsive servers"
    - "on the capacity of secure distributed matrix multiplication"
    - "on the asymptotic capacity of x secure t private information retrieval with graph based replicated storage"
    - "coded matrix multiplication on a group based model"
    - "an application of storage optimal matdot codes for coded matrix multiplication fast k nearest neighbors estimation"
    - "speeding up distributed machine learning using codes"
    - "rate efficiency and straggler robustness through partition in distributed two sided secure matrix computation"
    - "cross subspace alignment and the asymptotic capacity of x secure t private information retrieval"

Connected through hyperedge HE-3 (induced by source paper "on the asymptotic capacity of x secure t private information retrieval with graph based replicated storage"):
  with members:
    - "achievable rate of private function retrieval from mds coded databases"
    - "private information retrieval from coded storage systems with colluding byzantine and unresponsive servers"
    - "cross subspace alignment and the asymptotic capacity of x secure t private information retrieval"
    - "capacity achieving private information retrieval codes with optimal message size and upload cost"
    - "the capacity of private information retrieval with eavesdroppers"
    - "private information retrieval through wiretap channel ii privacy meets security"
    - "private information retrieval in graph based replication systems"
    - "asymmetry hurts private information retrieval under asymmetric traffic constraints"

Connected through hyperedge HE-4 (induced by source paper "fundamental limits of device to device private caching with trusted server"):
  with members:
    - "on coded caching with private demands"
    - "subpacketization in coded caching with demand privacy"
    - "embedded index coding"
    - "private pliable index coding"
    - "demand private coded caching and the exact trade off for n k 2"
    - "on the optimality of d2d coded caching with uncoded cache placement and one shot delivery"
    - "demand private coded caching"
    - "the exact rate memory tradeoff for caching with uncoded prefetching"

Connected through hyperedge HE-5 (induced by source paper "device to device private caching with trusted server"):
  with members:
    - "on coded caching with private demands"
    - "subpacketization in coded caching with demand privacy"
    - "on the optimality of d2d coded caching with uncoded cache placement and one shot delivery"
    - "demand private coded caching"
    - "the exact rate memory tradeoff for caching with uncoded prefetching"
    - "private information retrieval from coded storage systems with colluding byzantine and unresponsive servers"
    - "the capacity of robust private information retrieval with colluding databases"
    - "the capacity of private information retrieval"

Connected through hyperedge HE-6 (induced by source paper "the capacity of private information retrieval from decentralized uncoded caching databases"):
  with members:
    - "the exact rate memory tradeoff for caching with uncoded prefetching"
    - "staircase pir universally robust private information retrieval"
    - "noisy private information retrieval on separability of channel coding and information retrieval"
    - "the capacity of private information retrieval from uncoded storage constrained databases"
    - "private information retrieval from a cellular network with caching at the edge"
    - "private information retrieval from coded storage systems with colluding byzantine and unresponsive servers"
    - "cross subspace alignment and the asymptotic capacity of x secure t private information retrieval"
    - "coded caching for heterogeneous systems an optimization perspective"

Connected through hyperedge HE-7 (induced by source paper "noisy private information retrieval on separability of channel coding and information retrieval"):
  with members:
    - "robust private information retrieval from coded systems with byzantine and colluding servers"
    - "the capacity of private information retrieval from uncoded storage constrained databases"
    - "private information retrieval from coded storage systems with colluding byzantine and unresponsive servers"
    - "private information retrieval through wiretap channel ii privacy meets security"
    - "the capacity of private information retrieval with private side information under storage constraints"
    - "asymmetry hurts private information retrieval under asymmetric traffic constraints"
    - "the asymptotic capacity of private search"
    - "a general private information retrieval scheme for mds coded databases with colluding servers"

Connected through hyperedge HE-8 (induced by source paper "the capacity of private information retrieval with private side information under storage constraints"):
  with members:
    - "lifting private information retrieval from two to any number of messages"
    - "the capacity of private information retrieval with eavesdroppers"
    - "private information retrieval through wiretap channel ii privacy meets security"
    - "asymmetry hurts private information retrieval under asymmetric traffic constraints"
    - "the asymptotic capacity of private search"
    - "a general private information retrieval scheme for mds coded databases with colluding servers"
    - "the capacity of private information retrieval with partially known private side information"
    - "fundamental limits of cache aided private information retrieval with unknown and uncoded prefetching"

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)