Sökning: "sequential exploitation"

Visar resultat 1 - 5 av 10 avhandlingar innehållade orden sequential exploitation.

1. 1. Masking environmental feedback : Misfits between institutions and ecosystems in Belize and Thailand

   Författare :Miriam Huitric; Carl Folke; Nils Kautsky; Juan Carlos Castilla; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Marine reserves; ecosystem change; sequential exploitation; pathology of resource use; institutions; driving forces; coral reefs; social-ecological systems; mangroves; aquaculture; Belize; Thailand; Maine; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

   Sammanfattning : The thesis analyses relationships between ecological and social systems in the context of coastal ecosystems. It examines human impacts from resource extraction and addresses management and governance behind resource exploitation. LÄS MER

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

   Författare :Florian Siegmund; Kalyanmoy Deb; Amos H.C. Ng; Sanaz Mostaghim; Högskolan i Skövde; []
   Nyckelord :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;

   Sammanfattning : 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. LÄS MER

4. 3. Online Combinatorial Optimization under Bandit Feedback

   Författare :Mohammad Sadegh Talebi Mazraeh Shahi; Alexandre Proutiere; Vianney Perchet; KTH; []
   Nyckelord :Combinatorial Optimization; Online Learning; Multi-armed Bandits; Sequential Decision Making; Matematik; Mathematics; Datalogi; Computer Science;

   Sammanfattning : Multi-Armed Bandits (MAB) constitute the most fundamental model for sequential decision making problems with an exploration vs. exploitation trade-off. In such problems, the decision maker selects an arm in each round and observes a realization of the corresponding unknown reward distribution. LÄS MER

5. 4. Regret Minimization in Structured Reinforcement Learning

   Författare :Damianos Tranos; Alexandre Proutiere; Yevgeny Seldin; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reinforcement Learning; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : We consider a class of sequential decision making problems in the presence of uncertainty, which belongs to the field of Reinforcement Learning (RL). Specifically, we study discrete Markov decision Processes (MDPs) which model a decision maker or agent that interacts with a stochastic and dynamic environment and receives feedback from it in the form of a reward. LÄS MER

7. 5. Quality and motion estimation for image sequence coding

   Författare :Kenneth Andersson; Linköpings universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : Since the advent of television obtaining high perceived quality using a limited bandwidth has been an important issue. This thesis proposes methods inspired and based on the human visual system for exploitation of temporal and perceptual redundancy in image sequences to achieve lower coding rate and/ or higher visual quality. LÄS MER