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: "ergodic secret alignment"
  Abstract: In this paper, we introduce two new achievable schemes for the fading multiple access wiretap channel (MAC-WT). In the model that we consider, we assume that perfect knowledge of the state of all channels is available at all the nodes in a causal fashion. Our schemes use this knowledge together with the time varying nature of the channel model to align the interference from different users at the eavesdropper perfectly in a one-dimensional space while creating a higher dimensionality space for the interfering signals at the legitimate receiver hence allowing for better chance of recovery. While we achieve this alignment through signal scaling at the transmitters in our first scheme (scaling based alignment (SBA)), we let nature provide this alignment through the ergodicity of the channel coefficients in the second scheme (ergodic secret alignment (ESA)). For each scheme, we obtain the resulting achievable secrecy rate region. We show that the secrecy rates achieved by both schemes scale with SNR as 1/2log(SNR). Hence, we show the sub-optimality of the i.i.d. Gaussian signaling based schemes with and without cooperative jamming by showing that the secrecy rates achieved using i.i.d. Gaussian signaling with cooperative jamming do not scale with SNR. In addition, we introduce an improved version of our ESA scheme where we incorporate cooperative jamming to achieve higher secrecy rates. Moreover, we derive the necessary optimality conditions for the power control policy that maximizes the secrecy sum rate achievable by our ESA scheme when used solely and with cooperative jamming.

Connected through hyperedge HE-1 (induced by source paper "secure retrospective interference alignment"):
  with members:
    - "secrecy in mimo networks with no eavesdropper csit"
    - "secure degrees of freedom region of the two user miso broadcast channel with alternating csit"
    - "secure degrees of freedom of one hop wireless networks"
    - "ergodic interference alignment with delayed feedback"
    - "on the degrees of freedom of k user siso interference and x channels with delayed csit"
    - "secure degrees of freedom of k user gaussian interference channels a unified view"
    - "interference alignment for secrecy"
    - "completely stale transmitter channel state information is still very useful"

Connected through hyperedge HE-2 (induced by source paper "on the secure degrees of freedom of the k user interference channel with delayed csit"):
  with members:
    - "secure retrospective interference alignment"
    - "secure degrees of freedom of one hop wireless networks with no eavesdropper csit"
    - "secrecy in mimo networks with no eavesdropper csit"
    - "ergodic interference alignment with delayed feedback"
    - "on the degrees of freedom of k user siso interference and x channels with delayed csit"
    - "secure degrees of freedom of k user gaussian interference channels a unified view"
    - "interference alignment for secrecy"
    - "completely stale transmitter channel state information is still very useful"

Connected through hyperedge HE-3 (induced by source paper "secure degrees of freedom of one hop wireless networks with no eavesdropper csit"):
  with members:
    - "secure degrees of freedom of one hop wireless networks"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "mimo broadcast channel with an unknown eavesdropper secrecy degrees of freedom"
    - "aligned image sets under channel uncertainty settling a conjecture by lapidoth shamai and wigger on the collapse of degrees of freedom under finite precision csit"
    - "secure degrees of freedom of k user gaussian interference channels a unified view"
    - "wireless network information flow a deterministic approach"
    - "interference alignment for secrecy"
    - "interference assisted secret communication"

Connected through hyperedge HE-4 (induced by source paper "iterative distributed minimum total mse approach for secure communications in mimo interference channels"):
  with members:
    - "distributed energy spectral efficiency optimization for partial full interference alignment in multi user multi relay multi cell mimo systems"
    - "fifty years of mimo detection the road to large scale mimos"
    - "secure degrees of freedom of one hop wireless networks"
    - "degrees of freedom of the three user rank deficient mimo interference channel"
    - "limited feedback based interference alignment for interfering multi access channels"
    - "enhancing secrecy with multi antenna transmission in wireless ad hoc networks"
    - "filter design with secrecy constraints the mimo gaussian wiretap channel"
    - "interference alignment for secrecy"

Connected through hyperedge HE-5 (induced by source paper "secure degrees of freedom regions of multiple access and interference channels the polytope structure"):
  with members:
    - "secure degrees of freedom of one hop wireless networks"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "secure degrees of freedom of the gaussian wiretap channel with helpers and no eavesdropper csi blind cooperative jamming"
    - "secure degrees of freedom of k user gaussian interference channels a unified view"
    - "interference alignment for secrecy"
    - "on the secure degrees of freedom of the multiple access channel"
    - "cooperation with an untrusted relay a secrecy perspective"
    - "real interference alignment with real numbers"

Connected through hyperedge HE-6 (induced by source paper "generalized interference alignment part i theoretical framework"):
  with members:
    - "the feasibility conditions for interference alignment in mimo networks"
    - "on the degrees of freedom achievable through interference alignment in a mimo interference channel"
    - "a feasibility test for linear interference alignment in mimo channels with constant coefficients"
    - "subspace alignment chains and the degrees of freedom of the three user mimo interference channel"
    - "settling the feasibility of interference alignment for the mimo interference channel the symmetric square case"
    - "interference alignment for secrecy"
    - "cooperative algorithms for mimo interference channels"
    - "interference alignment as a rank constrained rank minimization"

Connected through hyperedge HE-7 (induced by source paper "generalized interference alignment part ii application to wireless secrecy"):
  with members:
    - "the feasibility conditions for interference alignment in mimo networks"
    - "interference alignment for secrecy"
    - "interference assisted secret communication"
    - "on cooperative relaying schemes for wireless physical layer security"
    - "cooperative jamming for secure communications in mimo relay networks"
    - "outage probability of general ad hoc networks in the high reliability regime"
    - "on feasibility of interference alignment in mimo interference networks"
    - "performance of interference alignment in clustered wireless ad hoc networks"

Connected through hyperedge HE-8 (induced by source paper "secrecy in mimo networks with no eavesdropper csit"):
  with members:
    - "secure degrees of freedom of one hop wireless networks with no eavesdropper csit"
    - "secure degrees of freedom of the multiple access wiretap channel with multiple antennas"
    - "secure degrees of freedom for the mimo wire tap channel with a multi antenna cooperative jammer"
    - "secure degrees of freedom of one hop wireless networks"
    - "feasibility of interference alignment for the mimo interference channel"
    - "blind mimome wiretap channel with delayed csit"
    - "mimo broadcast channel with an unknown eavesdropper secrecy degrees of freedom"
    - "secure degrees of freedom of the gaussian wiretap channel with helpers and no eavesdropper csi blind cooperative jamming"

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)