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 tractable analysis of the improvement in unique localizability through collaboration"
  Abstract: In this paper, we mathematically characterize the improvement in device localizability achieved by allowing collaboration among devices. Depending on the detection sensitivity of the receivers in the devices, it is not unusual for a device to be localized to lack a sufficient number of detectable positioning signals from localized devices to determine its location without ambiguity (i.e., to be uniquely localizable). This occurrence is well-known to be a limiting factor in localization performance, especially in communications systems. In cellular positioning, for example, cellular network designers call this the hearability problem. We study the conditions required for unique localizability and use tools from stochastic geometry to derive accurate analytic expressions for the probabilities of meeting these conditions in the noncollaborative and collaborative cases. We consider the scenario without shadowing, the scenario with shadowing and universal frequency reuse, and, finally, the shadowing scenario with random frequency reuse. The results from the latter scenario, which apply particularly to cellular networks, reveal that collaboration between two devices separated by only a short distance yields drastic improvements in both devices' abilities to uniquely determine their positions. The results from this analysis are very promising and motivate delving further into techniques which enhance cellular positioning with small-scale collaborative ranging observations among nearby devices.

Connected through hyperedge HE-1 (induced by source paper "characterizing the impact of snr heterogeneity on time of arrival based localization outage probability"):
  with members:
    - "a tractable analysis of the blind spot probability in localization networks under correlated blocking"
    - "on the outage probability of localization in randomly deployed wireless networks"
    - "asymptotic blind spot analysis of localization networks under correlated blocking using a poisson line process"
    - "a tractable metric for evaluating base station geometries in cellular network localization"
    - "power optimization for network localization"
    - "fundamental limits of wideband localization part ii cooperative networks"
    - "fundamental limits of wideband localization part i a general framework"

Connected through hyperedge HE-2 (induced by source paper "a tractable analysis of the blind spot probability in localization networks under correlated blocking"):
  with members:
    - "accurately accounting for random blockage in device to device mmwave networks"
    - "on the effect of shadowing correlation on wireless network performance"
    - "asymptotic blind spot analysis of localization networks under correlated blocking using a poisson line process"
    - "analysis of human body blockage in urban millimeter wave cellular communications"
    - "analysis of blockage effects on urban cellular networks"

Connected through hyperedge HE-3 (induced by source paper "a bayesian algorithm for distributed network localization using distance and direction data"):
  with members:
    - "cooperative simultaneous localization and synchronization in mobile agent networks"
    - "joint device positioning and clock synchronization in 5g ultra dense networks"
    - "localization in mobile networks via virtual convex hulls"
    - "cooperative localization for mobile networks a distributed belief propagation mean field message passing algorithm"
    - "sub nanosecond time of flight on commercial wi fi cards"
    - "loopy belief propagation for approximate inference an empirical study"
    - "convergent message passing algorithms a unifying view"
    - "cooperative and distributed localization for wireless sensor networks in multipath environments"

Connected through hyperedge HE-4 (induced by source paper "cooperative network localization using hybrid range and angle measurements"):
  with members:
    - "cooperative simultaneous localization and synchronization in mobile agent networks"
    - "loopy belief propagation for approximate inference an empirical study"
    - "cooperative and distributed localization for wireless sensor networks in multipath environments"

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)