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: "soteria automated iot safety and security analysis"
  Abstract: Broadly defined as the Internet of Things (IoT), the growth of commodity devices that integrate physical processes with digital systems have changed the way we live, play and work. Yet existing IoT platforms cannot evaluate whether an IoT app or environment is safe, secure, and operates correctly. In this paper, we present Soteria, a static analysis system for validating whether an IoT app or IoT environment (collection of apps working in concert) adheres to identified safety, security, and functional properties. Soteria operates in three phases; (a) translation of platform-specific IoT source code into an intermediate representation (IR), (b) extracting a state model from the IR, (c) applying model checking to verify desired properties. We evaluate Soteria on 65 SmartThings market apps through 35 properties and find nine (14%) individual apps violate ten (29%) properties. Further, our study of combined app environments uncovered eleven property violations not exhibited in the isolated apps. Lastly, we demonstrate Soteria on MalIoT, a novel open-source test suite containing 17 apps with 20 unique violations.

Connected through hyperedge HE-1 (induced by source paper "real time analysis of privacy un aware iot applications"):
  with members:
    - "a context aware framework for detecting sensor based threats on smart devices"
    - "aegis a context aware security framework for smart home systems"
    - "program analysis of commodity iot applications for security and privacy challenges and opportunities"
    - "peek a boo i see your smart home activities even encrypted"
    - "sensitive information tracking in commodity iot"
    - "a survey on sensor based threats to internet of things iot devices and applications"
    - "advertising in the iot era vision and challenges"
    - "iotdots a digital forensics framework for smart environments"

Connected through hyperedge HE-2 (induced by source paper "pfirewall semantics aware customizable data flow control for home automation systems"):
  with members:
    - "cross app interference threats in smart homes categorization detection and handling"
    - "peek a boo i see your smart home activities even encrypted"
    - "sensitive information tracking in commodity iot"
    - "a developer friendly library for smart home iot privacy preserving traffic obfuscation"
    - "user perceptions of smart home iot privacy"
    - "iotsan fortifying the safety of iot systems"
    - "spying on the smart home privacy attacks and defenses on encrypted iot traffic"
    - "closing the blinds four strategies for protecting smart home privacy from network observers"

Connected through hyperedge HE-3 (induced by source paper "multi user multi device aware access control system for smart home"):
  with members:
    - "a context aware framework for detecting sensor based threats on smart devices"
    - "a system level behavioral detection framework for compromised cps devices smart grid case"
    - "healthguard a machine learning based security framework for smart healthcare systems"
    - "aegis a context aware security framework for smart home systems"
    - "peek a boo i see your smart home activities even encrypted"
    - "sensitive information tracking in commodity iot"
    - "advertising in the iot era vision and challenges"
    - "iotdots a digital forensics framework for smart environments"

Connected through hyperedge HE-4 (induced by source paper "viscr intuitive conflict free automation for securing the dynamic consumer iot infrastructures"):
  with members:
    - "sensitive information tracking in commodity iot"
    - "iotc2 a formal method approach for detecting conflicts in large scale iot systems"
    - "fog computing for sustainable smart cities a survey"
    - "decoupled ifttt constraining privilege in trigger action platforms for the internet of things"
    - "snap stateful network wide abstractions for packet processing"
    - "a fast compiler for netkat"
    - "merlin a language for provisioning network resources"

Connected through hyperedge HE-5 (induced by source paper "the house that knows you user authentication based on iot data"):
  with members:
    - "is feature selection secure against training data poisoning"
    - "certified defenses for data poisoning attacks"
    - "spying on the smart home privacy attacks and defenses on encrypted iot traffic"
    - "i know why you went to the clinic risks and realization of https traffic analysis"
    - "a comparative usability study of two factor authentication"
    - "poisoning attacks against support vector machines"

Connected through hyperedge HE-6 (induced by source paper "helion enabling a natural perspective of home automation"):
  with members:
    - "sensitive information tracking in commodity iot"
    - "mining android app usages for generating actionable gui based execution scenarios"
    - "iotsan fortifying the safety of iot systems"
    - "a study of data store based home automation"

Connected through hyperedge HE-7 (induced by source paper "new problems and solutions in iot security and privacy"):
  with members:
    - "understanding and mitigating the security risks of voice controlled third party skills on amazon alexa and google home"
    - "spying on the smart home privacy attacks and defenses on encrypted iot traffic"
    - "internet of things security research a rehash of old ideas or new intellectual challenges"

Connected through hyperedge HE-8 (induced by source paper "logic bugs in iot platforms and systems a review"):
  with members:
    - "misbinding attacks on secure device pairing and bootstrapping"
    - "good motive but bad design why arm mpu has become an outcast in embedded systems"
    - "discovering and understanding the security hazards in the interactions between iot devices mobile apps and clouds on smart home platforms"

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.CR(Cryptography and Security)