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: "networked fairness in cake cutting"
  Abstract: We introduce a graphical framework for fair division in cake cutting, where comparisons between agents are limited by an underlying network structure. We generalize the classical fairness notions of envy-freeness and proportionality to this graphical setting. Given a simple undirected graph G, an allocation is envy-free on G if no agent envies any of her neighbor's share, and is proportional on G if every agent values her own share no less than the average among her neighbors, with respect to her own measure. These generalizations open new research directions in developing simple and efficient algorithms that can produce fair allocations under specific graph structures. #R##N#On the algorithmic frontier, we first propose a moving-knife algorithm that outputs an envy-free allocation on trees. The algorithm is significantly simpler than the discrete and bounded envy-free algorithm recently designed by Aziz and Mackenzie for complete graphs. Next, we give a discrete and bounded algorithm for computing a proportional allocation on descendant graphs, a class of graphs by taking a rooted tree and connecting all its ancestor-descendant pairs.

Connected through hyperedge HE-1 (induced by source paper "the price of connectivity in fair division"):
  with members:
    - "fairly allocating contiguous blocks of indivisible items"
    - "maximin share allocations on cycles"
    - "fairly allocating many goods with few queries"
    - "chore division on a graph"
    - "almost envy free allocations with connected bundles"
    - "fair division under cardinality constraints"
    - "when do envy free allocations exist"
    - "pareto optimal allocation of indivisible goods with connectivity constraints"

Connected through hyperedge HE-2 (induced by source paper "fair division through information withholding"):
  with members:
    - "envy freeness up to any item with high nash welfare the virtue of donating items"
    - "fair division with minimal sharing"
    - "a little charity guarantees almost envy freeness"
    - "maximin aware allocations of indivisible goods"
    - "when do envy free allocations exist"
    - "fair division via social comparison"
    - "fair assignment of indivisible objects under ordinal preferences"
    - "analytical approach to parallel repetition"

Connected through hyperedge HE-3 (induced by source paper "maximin aware allocations of indivisible goods"):
  with members:
    - "an improved envy free cake cutting protocol for four agents"
    - "groupwise maximin fair allocation of indivisible goods"
    - "almost envy freeness with general valuations"
    - "fair division of a graph"
    - "fair division via social comparison"

Connected through hyperedge HE-4 (induced by source paper "cake cutting on graphs a discrete and bounded proportional protocol"):
  with members:
    - "an improved envy free cake cutting protocol for four agents"
    - "a discrete and bounded envy free cake cutting protocol for any number of agents"
    - "fair division via social comparison"
    - "a discrete and bounded envy free cake cutting protocol for four agents"

Connected through hyperedge HE-5 (induced by source paper "object reachability via swaps under strict and weak preferences"):
  with members:
    - "fair division via social comparison"

Connected through hyperedge HE-6 (induced by source paper "chore division on a graph"):
  with members:
    - "fairly allocating contiguous blocks of indivisible items"
    - "maximin share allocations on cycles"
    - "almost envy free allocations with connected bundles"
    - "pareto optimal allocation of indivisible goods with connectivity constraints"
    - "competitive division of a mixed manna"
    - "on the complexity of chore division"
    - "fair division of a graph"
    - "fair division via social comparison"

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)