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Showing result 1 - 5 of 424 swedish dissertations matching the above criteria.

2. 1. Decentralized Control of Networked Systems : Information Asymmetries and Limitations

   Author : Farhad Farokhi; Karl Henrik Johansson; Jeff S. Shamma; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Networked Control Systems; Decentralized Control; Limited Model Information; Transportation Systems; Sensor Scheduling;

   Abstract : Designing local controllers for networked systems is challenging, because in these systems each local controller can often access only part of the overall information on system parameters and sensor measurements. Traditional control design cannot be easily applied due to the unconventional information patterns, communication network imperfections, and design procedure complexities. READ MORE

4. 2. Infinite-state Stochastic and Parameterized Systems

   Author : Noomene Ben Henda; Parosh Abdulla; Christel Baier; Uppsala universitet; []
   Keywords : program verification; model checking; stochastic games; infinite-state systems; Markov chains; reachability; repeated reachability; parameterized systems; approximation; safety; tree systems;

   Abstract : A major current challenge consists in extending formal methods in order to handle infinite-state systems. Infiniteness stems from the fact that the system operates on unbounded data structure such as stacks, queues, clocks, integers; as well as parameterization. READ MORE

5. 3. Timing Analysis of Distributed Embedded Systems with Stochastic Workload and Realiability Constraints

   Author : Bogdan Tanasa; Petru Eles; Zebo Peng; Unmesh Dutta Bordoloi; Lucia Lo Bello; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; embedded systems; perfomance analysis; real-time systems; distributed systems; fault tolerance; probabilistic analysis;

   Abstract : Today's distributed embedded systems are exposed to large variations in workload due to complex software applications and sophisticated hardware platforms. Examples of such systems are automotive and avionics applications.The tasks running on computational units have variable execution times. READ MORE

6. 4. Dynamic Resampling for Preference-based Evolutionary Multi-objective Optimization of Stochastic Systems : Improving the efficiency of time-constrained optimization

   Author : Florian Siegmund; Kalyanmoy Deb; Amos H.C. Ng; Sanaz Mostaghim; Högskolan i Skövde; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Evolutionary multi-objective optimization; simulation-based optimization; guided search; preference-based optimization; reference point; decision support; noise; stochastic systems; dynamic resampling; budget allocation; sequential sampling; hybrid; ranking and selection; Natural sciences; Naturvetenskap; Technology; Teknik; Production and Automation Engineering; Produktion och automatiseringsteknik;

   Abstract : In preference-based Evolutionary Multi-objective Optimization (EMO), the decision maker is looking for a diverse, but locally focused non-dominated front in a preferred area of the objective space, as close as possible to the true Pareto-front. Since solutions found outside the area of interest are considered less important or even irrelevant, the optimization can focus its efforts on the preferred area and find the solutions that the decision maker is looking for more quickly, i. READ MORE

7. 5. Transition Technologies for Electrification and Optimisation of Bus Transport Systems

   Author : Dennis Dreier; Viktoria Martin; Dilip Khatiwada; William Usher; Semida Silveira; Mark I. Howells; Hannah Daly; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bus transport system; C40; Decarbonization; Electrification; GHG; Optimization; OSeMOSYS-PuLP; Plug-in hybrid-electric; Systems analysis; Transformation; Busstransportsysstem; C40; Elektrifiering; Koldioxidminskning; Laddhybrid; Optimering; OSeMOSYS-PuLP; Systemanalys; Transformation; Växthusgaser; Energiteknik; Energy Technology;

   Abstract : The topical issue of climate change has increasingly become important as scenarios indicate an increase of 2.5–7.8°C in the global mean temperature by the end of this century, if no greenhouse gas emissions are reduced. READ MORE