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: "maximal parallelograms in convex polygons a novel geometric structure"
  Abstract: We propose a novel geometric structure, called $Nest(P)$, which is induced by $P$ and is an arrangement of $\Theta(n^2)$ segments, each of which is parallel to an edge of $P$. This structure admits several interesting and nontrivial properties, which follow from two fundamental properties in geometry, namely, convexity and parallelism. Moreover, we give a perfect application of this structure in the following geometric optimization problem: Given a convex polygon $P$ with $n$ edges, compute the parallelograms in $P$ with maximal area. We design an $O(n\log^2n)$ time algorithm for computing all these parallelograms, which improves over a previous known quadratic time algorithm. #R##N#Concretely, we show that $Nest(P)$ captures the essential nature of the maximal area parallelograms, and the optimization problem we considered reduces to answering $O(n)$ location queries on $Nest(P)$. Moreover, using a few nontrivial algorithmic tricks, we answer each of these queries in $O(\log^2n)$ time. This should avoid an explicit construction of $Nest(P)$, which takes $\Omega(n^2)$ time.

Connected through hyperedge HE-1 (induced by source paper "largest inscribed rectangles in geometric convex sets"):
  with members:
    - "finding all maximal area parallelograms in a convex polygon"
    - "maximum area triangle in a convex polygon revisited"
    - "maximal area triangles in a convex polygon"
    - "when convexity meets parallelism a novel geometric structure and its application in an optimization problem"
    - "finding largest rectangles in convex polygons"

Connected through hyperedge HE-2 (induced by source paper "finding all maximal area parallelograms in a convex polygon"):
  with members:
    - "maximum area triangle in a convex polygon revisited"
    - "maximal area triangles in a convex polygon"

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.CG(Computational Geometry)