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 "invariance to ordinal transformations in rank aware databases"):
  Abstract: We study influence of ordinal transformations on results of queries in rank-aware databases which derive their operations with ranked relations from totally ordered structures of scores with infima acting as aggregation functions. We introduce notions of ordinal containment and equivalence of ranked relations and prove that infima-based algebraic operations with ranked relations are invariant to ordinal transformations: Queries applied to original and transformed data yield results which are equivalent in terms of the order given by scores, meaning that top-k results of queries remain the same. We show this important property is preserved in alternative query systems based of relational calculi developed in context of Godel logic. We comment on relationship to monotone query evaluation and show that the results can be attained in alternative rank-aware approaches.

Includes members:
  Member "relational division in rank aware databases":
    also connected through other hyperedges:
      (none)
  Member "sensitivity analysis for declarative relational query languages with ordinal ranks":
    also connected through other hyperedges:
      (none)
  Member "provenance for aggregate queries":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "priu a provenance based approach for incrementally updating regression models")

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.DB(Databases)