Sökning: "State feedback"

Visar resultat 26 - 30 av 280 avhandlingar innehållade orden State feedback.

1. 26. 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

3. 27. Dissecting the photosystem II light-harvesting antenna

   Författare :Jenny Andersson; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant physiology; antisense; Arabidopsis thaliana; chlorophyll; carotenoid; feedback de-excitation; fitness; LHC; NPQ; photosynthesis; state transitions; xanthophyll; Växtfysiologi; Plant physiology; Växtfysiologi; Physiological Botany; fysiologisk botanik;

   Sammanfattning : In photosynthesis, sunlight is converted into chemical energy that is stored mainly as carbohydrates and supplies basically all life on Earth with energy.In order to efficiently absorb the light energy, plants have developed the outer light harvesting antenna, which is composed of ten different protein subunits (LHC) that bind chlorophyll a and b as well as different carotenoids. LÄS MER

4. 28. Stealthy Sensor Attacks on Feedback Systems : Attack Analysis and Detector-based Defense Mechanisms

   Författare :David Umsonst; Henrik Sandberg; Hideaki Ishii; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : In this thesis, we investigate sensor attacks on feedback systems and how anomaly detectors can be used as a defense mechanism. We consider an attacker with access to all sensor measurements and full knowledge about the closed-loop system model. LÄS MER

5. 29. Mathematical modelling approach to collective decision-making

   Författare :Natalia Zabzina; Denis Gaidashev; Torbjörn Lundh; Uppsala universitet; []
   Nyckelord :collective behaviour; collective decision-making; communication mechanisms; positive feedback; mathematical modelling; bifurcation phenomena; steady state solutions; symmetry breaking; symmetry restoring; diffusion-limited aggregation; fractal dimension;

   Sammanfattning : In everyday situations individuals make decisions. For example, a tourist usually chooses a crowded or recommended restaurant to have dinner. Perhaps it is an individual decision, but the observed pattern of decision-making is a collective phenomenon. LÄS MER

7. 30. Free Ensemble Improvisation

   Författare :Harald Stenström; Göteborgs universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; aleatorics; artistic research; attractor state; central tone; chaotic systems; collective understanding; comprovisation; conceptual model; directed motion; ensemble size; feedback and feedforward; free ensemble improvisation; gesture; importance of rhythm; indeterminacy; interactional skill; listening skill; musical evaluation; musical interaction; musical maturity; musical chemistry; musical interpretation; musical composition; non-idiomatic improvisation; rhythmic flow; sound properties; stylistic influences;

   Sammanfattning : The aim of this doctoral project has been to study so-called non-idiomatic improvisation in ensembles consisting of two or three musicians who play together without any restrictions regarding style or genre and without having predetermined what is to be played or how they should play. The background to this thesis has been the author’s own free improvising, which he has pursued since 1974, and the questions that have arisen whilst music-making. LÄS MER