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: "on the contribution of backward jumps to instruction sequence expressiveness"
  Abstract: We investigate the expressiveness of backward jumps in a framework of formalized sequential programming called program algebra. We show that - if expressiveness is measured in terms of the computability of partial Boolean functions - then backward jumps are superfluous. If we, however, want to prevent explosion of the length of programs, then backward jumps are essential.

Connected through hyperedge HE-1 (induced by source paper "long multiplication by instruction sequences with backward jump instructions"):
  with members:
    - "instruction sequences expressing multiplication algorithms"
    - "on algorithmic equivalence of instruction sequences for computing bit string functions"
    - "instruction sequence based non uniform complexity classes"
    - "instruction sequence expressions for the secure hash algorithm sha 256"
    - "instruction sequence processing operators"
    - "an instruction sequence semigroup with involutive anti automorphisms"
    - "when are two algorithms the same"

Connected through hyperedge HE-2 (induced by source paper "putting instruction sequences into effect"):
  with members:
    - "instruction sequence processing operators"
    - "on the expressiveness of single pass instruction sequences"
    - "indirect jumps improve instruction sequence performance"
    - "searching publications on operating systems"
    - "searching publications on software testing"
    - "a progression ring for interfaces of instruction sequences threads and services"
    - "instruction sequences with dynamically instantiated instructions"
    - "machine structure oriented control code logic"

Connected through hyperedge HE-3 (induced by source paper "four conceptions of instruction sequence faults"):
  with members:
    - "instruction sequence processing operators"
    - "about instruction sequence testing"
    - "putting instruction sequences into effect"
    - "informatics perspectives on decision taking a case study on resolving process product ambiguity"
    - "thread algebra for poly threading"
    - "searching publications on software testing"
    - "thread extraction for polyadic instruction sequences"

Connected through hyperedge HE-4 (induced by source paper "steering fragments of instruction sequences"):
  with members:
    - "instruction sequence processing operators"
    - "formaleuros formalcoins and virtual monies"
    - "informal control code logic"
    - "searching publications on operating systems"
    - "searching publications on software testing"
    - "machine structure oriented control code logic"
    - "thread extraction for polyadic instruction sequences"

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.LO(Logic in Computer Science)