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: "audit and change analysis of spreadsheets"
  Abstract: Because spreadsheets have a large and growing importance in real-world work, their contents need to be controlled and validated. Generally spreadsheets have been difficult to verify, since data and executable information are stored together. Spreadsheet applications with multiple authors are especially difficult to verify, since controls over access are difficult to enforce. Facing similar problems, traditional software engineering has developed numerous tools and methodologies to control, verify and audit large applications with multiple developers. We present some tools we have developed to enable 1) the audit of selected, filtered, or all changes in a spreadsheet, that is, when a cell was changed, its original and new contents and who made the change, and 2) control of access to the spreadsheet file(s) so that auditing is trustworthy. Our tools apply to OpenOffice.org calc spreadsheets, which can generally be exchanged with Microsoft Excel.

Connected through hyperedge HE-1 (induced by source paper "governance of spreadsheets through spreadsheet change reviews"):
  with members:
    - "controls over spreadsheets for financial reporting in practice"
    - "self checks in spreadsheets a survey of current practice"
    - "spreadsheet good practice is there any such thing"
    - "a practical approach to managing spreadsheet risk in a global business"
    - "an approach for the automated risk assessment of structural differences between spreadsheets diffxl"
    - "spreadsheets and the financial collapse"
    - "does an awareness of differing types of spreadsheet errors aid end users in identifying spreadsheets errors"
    - "controlling end user computing applications a case study"

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)