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: "neural networks for information retrieval"
  Abstract: Machine learning plays a role in many aspects of modern IR systems, and deep learning is applied in all of them. The fast pace of modern-day research has given rise to many approaches to many IR problems. The amount of information available can be overwhelming both for junior students and for experienced researchers looking for new research topics and directions. The aim of this full-day tutorial is to give a clear overview of current tried-and-trusted neural methods in IR and how they benefit IR.

Connected through hyperedge HE-1 (induced by source paper "discovering differential features adversarial learning for information credibility evaluation"):
  with members:
    - "the role of user profile for fake news detection"
    - "different absorption from the same sharing sifted multi task learning for fake news detection"
    - "multinomial adversarial networks for multi domain text classification"
    - "fakenewsnet a data repository with news content social context and dynamic information for studying fake news on social media"
    - "fake cures user centric modeling of health misinformation in social media"
    - "deep neural networks for bot detection"
    - "multi task learning by deep collaboration and application in facial landmark detection"
    - "like sheep among wolves characterizing hateful users on twitter"

Connected through hyperedge HE-2 (induced by source paper "neural vector spaces for unsupervised information retrieval"):
  with members:
    - "semantic entity retrieval toolkit"
    - "efficient vector representation for documents through corruption"
    - "pyndri a python interface to the indri search engine"
    - "reply with proactive recommendation of email attachments"
    - "a deep relevance matching model for ad hoc retrieval"
    - "learning to match using local and distributed representations of text for web search"
    - "noisy activation functions"
    - "siamese cbow optimizing word embeddings for sentence representations"

Connected through hyperedge HE-3 (induced by source paper "conversational exploratory search via interactive storytelling"):
  with members:
    - "event representations for automated story generation with deep neural nets"
    - "talking open data"
    - "neural belief tracker data driven dialogue state tracking"
    - "learning end to end goal oriented dialog"

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.IR(Information Retrieval)