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Some Future Research Directions

Some Future Research Directions. SIGMETRICS 2007 Don Towsley UMass-Amherst. Overview. PE concerned with solving problems implications? some challenges education for the system. PE confluence of many areas. PE  problem solving. nail -> hammer screw -> screw driver nut -> wrench.

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Some Future Research Directions

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  1. Some Future Research Directions SIGMETRICS 2007 Don Towsley UMass-Amherst

  2. Overview • PE concerned with solving problems • implications? • some challenges • education for the system

  3. PE confluence of many areas PE  problem solving nail -> hammer screw -> screw driver nut -> wrench design exploration -> stochastic models measurements -> statistics resource allocation -> optimization theory dynamic rsrc alloc -> control theory

  4. game theory machine learning optimization PE statistics stochastic processes control theory signal processing information theory

  5. Information theory and PE • IT concerned with minimizing communication resources • entropy – communication usage bound • sensor networks characterized by • severe resource constraints • highly correlated data streams • network monitoring, radar networks, habitat sensor nets, …

  6. Query processing in data sensor networks Challenge: given set of queries, minimize resource consumption to satisfy query result metric Resources: bandwidth, power, processing, storage Metrics: error in result (rate distortion), power consumption, … Issues: complexity, resource constraints Tools: traditional PE, information theory, control theory, ML, …

  7. PE, control optimization, game theory Many PE problems are optimization problems • storage management • call admission • congestion/flow control Often between competing parties Need to address entire problem – not just evaluate performance of one instance

  8. Control Control Control Multiple controllers • network control • routing, congestion control, call admission • add an overlay • and another

  9. Control Control Multiple controllers • network control • routing, congestion control, call admission • add an overlay • and another • or an application Result? • controller mismatch? • well-tuned machine? • performance implications?

  10. Multiple controllers Issues: complex interactions among self-interested players Tools: traditional PE, control theory, game theory, economic theory

  11. Training for PE • background in • probability theory, stochastic processes, statistics • course(s) in performance evaluation • how to handle real world problems • right questions? assumptions • iterative modeling/validation process • combining analysis, simulation, measurements  use good case studies • exposure to (some of) • ML, information theory, convex optimization, differential equations, game theory, control theory, …

  12. Thanks!Questions?

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