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 "hereditary graph classes when the complexities of colouring and clique cover coincide"):
  Abstract: A graph is $(H_1,H_2)$-free for a pair of graphs $H_1,H_2$ if it contains no induced subgraph isomorphic to $H_1$ or $H_2$. In 2001, Kral', Kratochv\'il, Tuza, and Woeginger initiated a study into the complexity of Colouring for $(H_1,H_2)$-free graphs. Since then, others have tried to complete their study, but many cases remain open. We focus on those $(H_1,H_2)$-free graphs where $H_2$ is $\overline{H_1}$, the complement of $H_1$. As these classes are closed under complementation, the computational complexities of Colouring and Clique Cover coincide. By combining new and known results, we are able to classify the complexity of Colouring and Clique Cover for $(H,\overline{H})$-free graphs for all cases except when $H=sP_1+ P_3$ for $s\geq 3$ or $H=sP_1+P_4$ for $s\geq 2$. We also classify the complexity of Colouring on graph classes characterized by forbidding a finite number of self-complementary induced subgraphs, and we initiate a study of $k$-Colouring for $(P_r,\overline{P_r})$-free graphs.

Includes members:
  Member "clique width for graph classes closed under complementation":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "graph isomorphism for h_1 h_2 free graphs an almost complete dichotomy")
  Member "solving the clique cover problem on bull c_4 free graphs":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "on colouring 2p_2 h free and p_5 h free graphs")
  Member "colouring diamond free graphs":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "theta triangle free and even hole k 4 free graphs part 2 bounds on treewidth")
  Member "classifying the clique width of h free bipartite graphs":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "on efficient domination for some classes of h free bipartite graphs")
  Member "complexity of coloring graphs without paths and cycles":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "on colouring 2p_2 h free and p_5 h free graphs")
  Member "the coloring problem for classes with two small obstructions":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "on colouring 2p_2 h free and p_5 h free graphs")

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.DS(Data Structures and Algorithms)