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: "a comparison of two techniques for bibliometric mapping multidimensional scaling and vos"
  Abstract: VOS is a new mapping technique that can serve as an alternative to the well-known technique of multidimensional scaling. We present an extensive comparison between the use of multidimensional scaling and the use of VOS for constructing bibliometric maps. In our theoretical analysis, we show the mathematical relation between the two techniques. In our experimental analysis, we use the techniques for constructing maps of authors, journals, and keywords. Two commonly used approaches to bibliometric mapping, both based on multidimensional scaling, turn out to produce maps that suffer from artifacts. Maps constructed using VOS turn out not to have this problem. We conclude that in general maps constructed using VOS provide a more satisfactory representation of a data set than maps constructed using well-known multidimensional scaling approaches.

Connected through hyperedge HE-1 (induced by source paper "on varying topology of complex networks and performance limitations of community detection algorithms"):
  with members:
    - "tunable and growing network generation model with community structures"
    - "bad communities with high modularity"
    - "empirical comparison of algorithms for network community detection"
    - "finding community structure in mega scale social networks"

Connected through hyperedge HE-2 (induced by source paper "iran s scientific dominance and the emergence of south east asian countries as scientific collaborators in the persian gulf region"):
  with members:
    - "a unified approach to mapping and clustering of bibliometric networks"

Connected through hyperedge HE-3 (induced by source paper "exploring the relationship between the engineering and physical sciences and the health and life sciences by advanced bibliometric methods"):
  with members:
    - "citation analysis may severely underestimate the impact of clinical research as compared to basic research"
    - "a new methodology for constructing a publication level classification system of science"
    - "text mining and visualization using vosviewer"
    - "how journal rankings can suppress interdisciplinary research a comparison between innovation studies and business management"

Connected through hyperedge HE-4 (induced by source paper "citnetexplorer a new software tool for analyzing and visualizing citation networks"):
  with members:
    - "a new methodology for constructing a publication level classification system of science"
    - "a unified approach to mapping and clustering of bibliometric networks"

Connected through hyperedge HE-5 (induced by source paper "interactive overlays of journals and the measurement of interdisciplinarity on the basis of aggregated journal journal citations"):
  with members:
    - "global maps of science based on the new web of science categories"
    - "interactive overlay maps for us patent uspto data based on international patent classifications ipc"
    - "interdisciplinarity at the journal and specialty level the changing knowledge bases of the journal cognitive science"
    - "interactive overlays a new method for generating global journal maps from web of science data"
    - "which cities produce excellent papers worldwide more than can be expected a new mapping approach using google maps based on statistical significance testing"
    - "the structure of the arts humanities citation index a mapping on the basis of aggregated citations among 1 157 journals"
    - "how journal rankings can suppress interdisciplinary research a comparison between innovation studies and business management"
    - "a unified approach to mapping and clustering of bibliometric networks"

Connected through hyperedge HE-6 (induced by source paper "citation analysis may severely underestimate the impact of clinical research as compared to basic research"):
  with members:
    - "source normalized indicators of citation impact an overview of different approaches and an empirical comparison"
    - "a new methodology for constructing a publication level classification system of science"
    - "some modifications to the snip journal impact indicator"
    - "text mining and visualization using vosviewer"
    - "the inconsistency of the h index"
    - "how journal rankings can suppress interdisciplinary research a comparison between innovation studies and business management"
    - "scopus s source normalized impact per paper snip versus a journal impact factor based on fractional counting of citations"
    - "towards a new crown indicator some theoretical considerations"

Connected through hyperedge HE-7 (induced by source paper "interactive overlay maps for us patent uspto data based on international patent classifications ipc"):
  with members:
    - "how to create an innovation accelerator"
    - "interactive overlays a new method for generating global journal maps from web of science data"
    - "publish or patent bibliometric evidence for empirical trade offs in national funding strategies"
    - "which cities produce excellent papers worldwide more than can be expected a new mapping approach using google maps based on statistical significance testing"
    - "the structure of the arts humanities citation index a mapping on the basis of aggregated citations among 1 157 journals"
    - "how journal rankings can suppress interdisciplinary research a comparison between innovation studies and business management"
    - "a unified approach to mapping and clustering of bibliometric networks"
    - "indicators of the interdisciplinarity of journals diversity centrality and citations"

Connected through hyperedge HE-8 (induced by source paper "a new methodology for constructing a publication level classification system of science"):
  with members:
    - "a unified approach to mapping and clustering of bibliometric networks"

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.DL(Digital Libraries)