human: Given a node-centered hypergraph: <hypergraph>, where nodes represent authors and hyperedges represent groups of authors who co-authored the same paper.

Details of the hypergraph:
Center node: "Data Capacity Improvement of Wireless Sensor Networks Using Non-Uniform Sensor Distribution"
  Abstract: Energy conservation is an important design consideration for battery powered wireless sensor networks (WSNET). Energy constraint in WSNETs limits the total amount of sensed data (data capacity) received by sinks. In the commonly used static model of sensor networks with uniformly distributed homogenous sensors with a stationary sink, sensors close to the sink drain their energy much faster than sensors far away from the sink due to the unevenly distributed forwarding workloads among sensors. A major issue, which has not been adequately addressed so far, is the question of how sensor deployment governs the data capacity, and how to improve data capacity of WSNETs. In our previous work, we provided a simple analytical model to address this issue for one specific type of WSNETs. In this paper, we extend our previous work to address this issue for general WSNETs. In the extended static models, for large networks, we find that after the lifetime of a sensor network is over, there is a great amount of energy le...

Connected through hyperedge HE-1 (induced by source paper "Deployment guidelines for achieving maximum lifetime and avoiding energy holes in sensor network"):
  with members:
    - "A Flow-Partitioned Unequal Clustering Routing Algorithm for Wireless Sensor Networks"

Connected through hyperedge HE-2 (induced by source paper "On the many-to-one transport capacity of a dense wireless sensor network and the compressibility of its data"):
  with members:
    - "On the interdependence of routing and data compression in multi-hop sensor networks"
    - "Estimation Diversity and Energy Efficiency in Distributed Sensing"
    - "Sensing lena-massively distributed compression of sensor images"
    - "Imposed Route Reuse in Ad Hoc Network Routing Protocols Using Structured Peer-to-Peer Overlay Routing"
    - "Matched source-channel communication for field estimation in wireless sensor networks"

Question: Please tell me which research area the center author belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science