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: "sodeep a sorting deep net to learn ranking loss surrogates"
  Abstract: Several tasks in machine learning are evaluated using non-differentiable metrics such as mean average precision or Spearman correlation. However, their non-differentiability prevents from using them as objective functions in a learning framework. Surrogate and relaxation methods exist but tend to be specific to a given metric. #R##N#In the present work, we introduce a new method to learn approximations of such non-differentiable objective functions. Our approach is based on a deep architecture that approximates the sorting of arbitrary sets of scores. It is trained virtually for free using synthetic data. This sorting deep (SoDeep) net can then be combined in a plug-and-play manner with existing deep architectures. We demonstrate the interest of our approach in three different tasks that require ranking: Cross-modal text-image retrieval, multi-label image classification and visual memorability ranking. Our approach yields very competitive results on these three tasks, which validates the merit and the flexibility of SoDeep as a proxy for sorting operation in ranking-based losses.

Connected through hyperedge HE-1 (induced by source paper "sketch less for more on the fly fine grained sketch based image retrieval"):
  with members:
    - "semantically tied paired cycle consistency for zero shot sketch based image retrieval"
    - "semantic aware knowledge preservation for zero shot sketch based image retrieval"
    - "livesketch query perturbations for guided sketch based visual search"
    - "doodle to search practical zero shot sketch based image retrieval"
    - "interactive sketch fill multiclass sketch to image translation"
    - "pluralistic image completion"
    - "goal driven sequential data abstraction"
    - "learning deep sketch abstraction"

Connected through hyperedge HE-2 (induced by source paper "optimizing rank based metrics with blackbox differentiation"):
  with members:
    - "learning with average precision training image retrieval with a listwise loss"
    - "generalized intersection over union a metric and a loss for bounding box regression"
    - "towards accurate one stage object detection with ap loss"
    - "mmdetection open mmlab detection toolbox and benchmark"
    - "mediaeval 2018 predicting media memorability task"
    - "deep metric learning with bier boosting independent embeddings robustly"
    - "yolov3 an incremental improvement"
    - "deep randomized ensembles for metric learning"

Connected through hyperedge HE-3 (induced by source paper "target oriented deformation of visual semantic embedding space"):
  with members:
    - "camp cross modal adaptive message passing for text image retrieval"
    - "visual semantic reasoning for image text matching"
    - "polysemous visual semantic embedding for cross modal retrieval"
    - "matching images and text with multi modal tensor fusion and re ranking"
    - "learning similarity conditions without explicit supervision"
    - "focus your attention a bidirectional focal attention network for image text matching"
    - "learning visual relation priors for image text matching and image captioning with neural scene graph generators"
    - "finding beans in burgers deep semantic visual embedding with localization"

Connected through hyperedge HE-4 (induced by source paper "a review on ranking problems in statistical learning"):
  with members:
    - "training deep neural networks via direct loss minimization"
    - "nonconvex regularizations for feature selection in ranking with sparse svm"
    - "sparse support vector infinite push"

Connected through hyperedge HE-5 (induced by source paper "videomem constructing analyzing predicting short term and long term video memorability"):
  with members:
    - "mediaeval 2018 predicting media memorability task"
    - "amnet memorability estimation with attention"
    - "can spatiotemporal 3d cnns retrace the history of 2d cnns and imagenet"
    - "show and recall learning what makes videos memorable"
    - "deep residual learning for image recognition"
    - "unifying visual semantic embeddings with multimodal neural language models"
    - "learning spatiotemporal features with 3d convolutional 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.LG(Machine Learning)