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: "waste makes haste bounded time algorithms for envy free cake cutting with free disposal"
  Abstract: We consider the classic problem of envy-free division of a heterogeneous good (“cake”) among several agents. It is known that, when the allotted pieces must be connected, the problem cannot be solved by a finite algorithm for three or more agents. The impossibility result, however, assumes that the entire cake must be allocated. In this article, we replace the entire-allocation requirement with a weaker partial-proportionality requirement: the piece given to each agent must be worth for it at least a certain positive fraction of the entire cake value. We prove that this version of the problem is solvable in bounded time even when the pieces must be connected. We present simple, bounded-time envy-free cake-cutting algorithms for (1) giving each of n agents a connected piece with a positive value; (2) giving each of three agents a connected piece worth at least 1/3; (3) giving each of four agents a connected piece worth at least 1/7; (4) giving each of four agents a disconnected piece worth at least 1/4; and (5) giving each of n agents a disconnected piece worth at least (1 − e)/n for any positive e.

Connected through hyperedge HE-1 (induced by source paper "dividing a graphical cake"):
  with members:
    - "fairly allocating contiguous blocks of indivisible items"
    - "maximin share allocations on cycles"
    - "connected fair allocation of indivisible goods"
    - "chore division on a graph"
    - "almost envy free allocations with connected bundles"
    - "pareto optimal allocation of indivisible goods with connectivity constraints"
    - "competitive division of a mixed manna"
    - "fair and square cake cutting in two dimensions"

Connected through hyperedge HE-2 (induced by source paper "an improved envy free cake cutting protocol for four agents"):
  with members:
    - "a discrete and bounded envy free cake cutting protocol for any number of agents"
    - "a discrete and bounded envy free cake cutting protocol for four agents"
    - "cake cutting algorithms for piecewise constant and piecewise uniform valuations"

Connected through hyperedge HE-3 (induced by source paper "building fences straight and high an optimal algorithm for finding the maximum length you can cut k times from given sticks"):
  with members:
    - "a discrete and bounded envy free cake cutting protocol for any number of agents"
    - "linear time algorithms for proportional apportionment"

Connected through hyperedge HE-4 (induced by source paper "communication complexity of cake cutting"):
  with members:
    - "consensus halving is ppa complete"
    - "the query complexity of cake cutting"
    - "combinatorial auctions do need modest interaction"
    - "a discrete and bounded envy free cake cutting protocol for any number of agents"
    - "hardness results for consensus halving"
    - "communication complexity for algorithm designers"
    - "welfare maximization with limited interaction"
    - "a stable marriage requires communication"

Connected through hyperedge HE-5 (induced by source paper "envy free division of land"):
  with members:
    - "monotonicity and competitive equilibrium in cake cutting"
    - "fair and square cake cutting in two dimensions"
    - "a discrete and bounded envy free cake cutting protocol for any number of agents"
    - "envy free cake cutting in two dimensions"
    - "redividing the cake"
    - "rental harmony with roommates"

Connected through hyperedge HE-6 (induced by source paper "fair division via social comparison"):
  with members:
    - "a discrete and bounded envy free cake cutting protocol for any number of agents"
    - "a discrete and bounded envy free cake cutting protocol for four agents"

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.DS(Data Structures and Algorithms)