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: "individual and social requirement aspects of sustainable elearning systems"
  Abstract: Internationalization of the higher education has created the so-called borderless university, which provides better opportunities for learning and increases the human and social sustainability. eLearning systems are a special kind of software systems, developed to provide a platform for accessible teaching and learning, including also online access to learning materials and online support for learning and teaching. The aim of our current work is to extract, analyse, and combine the results from multiple studies in order to develop an RE framework for sustainable eLearning systems. #R##N#We call a system sustainable, if it has a positive effect on and whose direct and indirect negative impacts resulting from its development, deployment, and usage are minimal. Sustainability has various dimensions. We classify sustainability requirements of eLearning system to five dimensions: individual (human), social, technical, environmental, and economic. In this paper, we focus on human and social aspects (i.e., individual needs the relationship of people within society), as the eLearning systems have a very strong impact on human dimension of sustainability, where their impact on environmental dimension is rather small. This also provides us a basis to identify the corresponding requirements for sustainable eLearning systems. These requirements include collaboration, learner-centred features, leadership development and the reuse of the learning materials. As a result, achieving individual and social requirements for eLearning systems would provide higher quality of leaning and teaching, as well as better opportunities for learning and increasing the human and social sustainability.

Connected through hyperedge HE-1 (induced by source paper "requirements engineering for global systems cultural regulatory and technical aspects"):
  with members:
    - "cultural influences on requirements engineering process in the context of saudi arabia"
    - "requirements engineering aspects of a geographically distributed architecture"

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.CY(Computers and Society)