human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "a new balanced subdivision of a simple polygon for time space trade off algorithms"):
  Abstract: We are given a read-only memory for input and a write-only stream for output. For a positive integer parameter s, an s-workspace algorithm is an algorithm using only $O(s)$ words of workspace in addition to the memory for input. In this paper, we present an $O(n^2/s)$-time $s$-workspace algorithm for subdividing a simple polygon into $O(\min\{n/s,s\})$ subpolygons of complexity $O(\max\{n/s,s\})$. #R##N#As applications of the subdivision, the previously best known time-space trade-offs for the following three geometric problems are improved immediately: (1) computing the shortest path between two points inside a simple $n$-gon, (2) computing the shortest path tree from a point inside a simple $n$-gon, (3) computing a triangulation of a simple $n$-gon. In addition, we improve the algorithm for the second problem even further.

Includes members:
  Member "computational geometry column 67":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "common tangents of two disjoint polygons in linear time and constant workspace")
  Member "ime space trade offs for computing euclidean minimum spanning trees":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "computational geometry column 67")
  Member "time space trade offs for triangulations and voronoi diagrams":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "computational geometry column 67")
  Member "time space trade offs for triangulating a simple polygon":
    also connected through other hyperedges:
      (none)
  Member "shortest path in a polygon using sublinear space":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "an experimental study of algorithms for geodesic shortest paths in the constant workspace model")
  Member "memory constrained algorithms for simple polygons":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "time space trade off for finding the k visibility region of a point in a polygon")
  Member "space time trade offs for stack based algorithms":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "common tangents of two disjoint polygons in linear time and constant workspace")

Question: Please tell me which class the source paper 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)