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: "privbasis frequent itemset mining with differential privacy"
  Abstract: The discovery of frequent itemsets can serve valuable economic and research purposes. Releasing discovered frequent itemsets, however, presents privacy challenges. In this paper, we study the problem of how to perform frequent itemset mining on transaction databases while satisfying differential privacy. We propose an approach, called PrivBasis, which leverages a novel notion called basis sets. A theta-basis set has the property that any itemset with frequency higher than theta is a subset of some basis. We introduce algorithms for privately constructing a basis set and then using it to find the most frequent itemsets. Experiments show that our approach greatly outperforms the current state of the art.

Connected through hyperedge HE-1 (induced by source paper "evaluating differentially private machine learning in practice"):
  with members:
    - "differentially private model publishing for deep learning"
    - "privacy preserving collaborative deep learning with irregular participants"
    - "cache telepathy leveraging shared resource attacks to learn dnn architectures"
    - "differentially private empirical risk minimization revisited faster and more general"
    - "dp admm admm based distributed learning with differential privacy"
    - "how to backdoor federated learning"
    - "ml leaks model and data independent membership inference attacks and defenses on machine learning models"
    - "efficient deep learning on multi source private data"

Connected through hyperedge HE-2 (induced by source paper "er ae differentially private text generation for authorship anonymization"):
  with members:
    - "author obfuscation using generalised differential privacy"
    - "unsupervised text style transfer using language models as discriminators"
    - "adversarial text generation via feature mover s distance"
    - "universal sentence encoder"
    - "content preserving text generation with attribute controls"
    - "a dataset of peer reviews peerread collection insights and nlp applications"
    - "bert pre training of deep bidirectional transformers for language understanding"
    - "syntf synthetic and differentially private term frequency vectors for privacy preserving text mining"

Connected through hyperedge HE-3 (induced by source paper "aggregating votes with local differential privacy usefulness soundness vs indistinguishability"):
  with members:
    - "collecting and analyzing multidimensional data with local differential privacy"
    - "tight lower bounds for locally differentially private selection"
    - "privacy loss in apple s implementation of differential privacy on macos 10 12"
    - "tight lower bounds for differentially private selection"
    - "marginal release under local differential privacy"
    - "heavy hitters and the structure of local privacy"
    - "collecting telemetry data privately"
    - "collecting and analyzing data from smart device users with local differential privacy"

Connected through hyperedge HE-4 (induced by source paper "blender enabling local search with a hybrid differential privacy model"):
  with members:
    - "calibrate frequency estimation and heavy hitter identification with local differential privacy via incorporating prior knowledge"
    - "privacy amplification by iteration"
    - "the power of the hybrid model for mean estimation"
    - "privacy loss in apple s implementation of differential privacy on macos 10 12"
    - "practical locally private heavy hitters"
    - "differentially private identity and closeness testing of discrete distributions"
    - "differentially private testing of identity and closeness of discrete distributions"
    - "building a rappor with the unknown privacy preserving learning of associations and data dictionaries"

Connected through hyperedge HE-5 (induced by source paper "apex accuracy aware differentially private data exploration"):
  with members:
    - "optimizing error of high dimensional statistical queries under differential privacy"
    - "ektelo a framework for defining differentially private computations"
    - "private exploration primitives for data cleaning"
    - "gradual release of sensitive data under differential privacy"
    - "principled evaluation of differentially private algorithms using dpbench"
    - "rappor randomized aggregatable privacy preserving ordinal response"
    - "a data and workload aware algorithm for range queries under differential privacy"
    - "calibrating data to sensitivity in private data analysis"

Connected through hyperedge HE-6 (induced by source paper "private exploration primitives for data cleaning"):
  with members:
    - "gradual release of sensitive data under differential privacy"
    - "rappor randomized aggregatable privacy preserving ordinal response"
    - "a data and workload aware algorithm for range queries under differential privacy"
    - "calibrating data to sensitivity in private data analysis"
    - "a simple and practical algorithm for differentially private data release"

Connected through hyperedge HE-7 (induced by source paper "privtree a differentially private algorithm for hierarchical decompositions"):
  with members:
    - "on the privacy properties of variants on the sparse vector technique"
    - "differentially private k means clustering"
    - "a data and workload aware algorithm for range queries under differential privacy"
    - "calibrating data to sensitivity in private data analysis"
    - "an adaptive mechanism for accurate query answering under differential privacy"
    - "accurate and efficient private release of datacubes and contingency tables"
    - "optimal error of query sets under the differentially private matrix mechanism"
    - "differentially private grids for geospatial data"

Connected through hyperedge HE-8 (induced by source paper "optimizing batch linear queries under exact and approximate differential privacy"):
  with members:
    - "the geometry of differential privacy the sparse and approximate cases"
    - "calibrating data to sensitivity in private data analysis"
    - "an adaptive mechanism for accurate query answering under differential privacy"
    - "low rank mechanism for optimizing batch queries under differential privacy"
    - "beating randomized response on incoherent matrices"
    - "optimal error of query sets under the differentially private matrix mechanism"
    - "functional mechanism regression analysis under differential privacy"
    - "a learning theory approach to non interactive database privacy"

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.DB(Databases)