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: "polytool polynomial interpretations as a basis for termination analysis of logic programs"
  Abstract: Our goal is to study the feasibility of porting termination analysis techniques developed for one programming paradigm to another paradigm. In this paper, we show how to adapt termination analysis techniques based on polynomial interpretations - very well known in the context of term rewrite systems (TRSs) - to obtain new (non-transformational) ter- mination analysis techniques for definite logic programs (LPs). This leads to an approach that can be seen as a direct generalization of the traditional techniques in termination analysis of LPs, where linear norms and level mappings are used. Our extension general- izes these to arbitrary polynomials. We extend a number of standard concepts and results on termination analysis to the context of polynomial interpretations. We also propose a constraint-based approach for automatically generating polynomial interpretations that satisfy the termination conditions. Based on this approach, we implemented a new tool, called Polytool, for automatic termination analysis of LPs.

Connected through hyperedge HE-1 (induced by source paper "correctness and completeness of logic programs"):
  with members:
    - "on definite program answers and least herbrand models"
    - "on completeness of logic programs"
    - "truth versus information in logic programming"
    - "logic control on program construction and verification"
    - "logic control an example of program construction"
    - "xsb extending prolog with tabled logic programming"
    - "automated termination proofs for logic programs by term rewriting"
    - "proving correctness and completeness of normal programs a declarative approach"

Connected through hyperedge HE-2 (induced by source paper "logic control on program construction and verification"):
  with members:
    - "proving completeness of logic programs with the cut"
    - "on definite program answers and least herbrand models"
    - "correctness and completeness of logic programs"
    - "on completeness of logic programs"
    - "sicstus prolog the first 25 years"
    - "proving correctness and completeness of normal programs a declarative approach"
    - "classes of terminating logic programs"

Connected through hyperedge HE-3 (induced by source paper "non termination analysis of logic programs with integer arithmetics"):
  with members:
    - "termination prediction for general logic programs"
    - "a dynamic approach to characterizing termination of general logic programs"
    - "inference of termination conditions for numerical loops in prolog"

Connected through hyperedge HE-4 (induced by source paper "automated termination analysis for logic programs with cut"):
  with members:
    - "automated termination proofs for logic programs by term rewriting"
    - "the witness properties and the semantics of the prolog cut"
    - "efficient groundness analysis in prolog"
    - "on termination of meta programs"

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.PL(Programming Languages)