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: "an empirical study of software reuse by experts in object oriented design"
  Abstract: This paper presents an empirical study of the software reuse activity by expert designers in the context of object-oriented design. Our study focuses on the three following aspects of reuse : (1) the interaction between some design processes, e.g. constructing a problem representation, searching for and evaluating solutions, and reuse processes, i.e. retrieving and using previous solutions, (2) the mental processes involved in reuse, e.g. example-based retrieval or bottom-up versus top-down expanding of the solution, and (3) the mental representations constructed throughout the reuse activity, e.g. dynamic versus static representations. Some implications of these results for the specification of software reuse support environments are discussed.

Connected through hyperedge HE-1 (induced by source paper "designing as construction of representations a dynamic viewpoint in cognitive design research"):
  with members:
    - "negotiation in collaborative assessment of design solutions an empirical study on a concurrent engineering process"
    - "changing our view on design evaluation meetings methodology a study of software technical review meetings"
    - "reuse of designs desperately seeking an interdisciplinary cognitive approach"
    - "cognitive effort in collective software design methodological perspectives in cognitive ergonomics"
    - "evocation and elaboration of solutions different types of problem solving actions an empirical study on the design of an aerospace artifact"
    - "analysing viewpoints in design through the argumentation process"

Connected through hyperedge HE-2 (induced by source paper "strategies in object oriented design"):
  with members:
    - "reasoning from a schema and from an analog in software code reuse"
    - "design strategies and knowledge in object oriented programming effects of experience"
    - "expert programming knowledge a schema based approach"

Connected through hyperedge HE-3 (induced by source paper "what model s for program understanding"):
  with members:
    - "expert programming knowledge a schema based approach"

Connected through hyperedge HE-4 (induced by source paper "object oriented program comprehension effect of expertise task and phase"):
  with members:
    - "what model s for program understanding"
    - "reusing processes and documenting processes toward an integrated framework"
    - "mental representations constructed by experts and novices in object oriented program comprehension"
    - "assessing the cognitive consequences of the object oriented approach a survey of empirical research on object oriented design by individuals and teams"
    - "expert programming knowledge a schema based approach"

Connected through hyperedge HE-5 (induced by source paper "assessing the cognitive consequences of the object oriented approach a survey of empirical research on object oriented design by individuals and teams"):
  with members:
    - "strategies in object oriented design"
    - "reasoning from a schema and from an analog in software code reuse"
    - "reusing processes and documenting processes toward an integrated framework"
    - "mental representations constructed by experts and novices in object oriented program comprehension"
    - "design strategies and knowledge in object oriented programming effects of experience"

Connected through hyperedge HE-6 (induced by source paper "memory of past designs distinctive roles in individual and collective design"):
  with members:
    - "negotiation in collaborative assessment of design solutions an empirical study on a concurrent engineering process"
    - "reasoning from a schema and from an analog in software code reuse"
    - "reusing processes and documenting processes toward an integrated framework"
    - "reuse of designs desperately seeking an interdisciplinary cognitive approach"
    - "analysing viewpoints in design through the argumentation process"

Connected through hyperedge HE-7 (induced by source paper "reusing processes and documenting processes toward an integrated framework"):
  with members:
    - "reasoning from a schema and from an analog in software code reuse"

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.HC(Human-Computer Interaction)