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: "bounding the radii of balls meeting every connected component of semi algebraic sets"
  Abstract: We prove explicit bounds on the radius of a ball centered at the origin which is guaranteed to contain all bounded connected components of a semi-algebraic set $S \subset \mathbbm{R}^k$ defined by a quantifier-free formula involving $s$ polynomials in $\mathbbm{Z}[X_1, ..., X_k]$ having degrees at most $d$, and whose coefficients have bitsizes at most $\tau$. Our bound is an explicit function of $s, d, k$ and $\tau$, and does not contain any undetermined constants. We also prove a similar bound on the radius of a ball guaranteed to intersect every connected component of $S$ (including the unbounded components). While asymptotic bounds of the form $2^{\tau d^{O (k)}}$ on these quantities were known before, some applications require bounds which are explicit and which hold for all values of $s, d, k$ and $\tau$. The bounds proved in this paper are of this nature.

Connected through hyperedge HE-1 (induced by source paper "dynamic toolbox for etrinv"):
  with members:
    - "a universality theorem for nested polytopes"
    - "the complexity of drawing a graph in a polygonal region"

Connected through hyperedge HE-2 (induced by source paper "the art gallery problem is exists mathbb r complete"):
  with members:
    - "the continuous 1 5d terrain guarding problem discretization optimal solutions and ptas"
    - "recognition and complexity of point visibility graphs"
    - "engineering art galleries"

Connected through hyperedge HE-3 (induced by source paper "a probabilistic algorithm to compute the real dimension of a semi algebraic set"):
  with members:
    - "exact algorithms for solving stochastic games"
    - "computing a nonnegative matrix factorization provably"
    - "stochastic limit average games are in exptime"

Connected through hyperedge HE-4 (induced by source paper "exact algorithms for solving stochastic games"):
  with members:
    - "the dmm bound multivariate aggregate separation bounds"
    - "the complexity of solving reachability games using value and strategy iteration"
    - "recursive concurrent stochastic games"
    - "stochastic limit average games are in exptime"

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.SC(Symbolic Computation)