Sökning: "complex constraints"

Visar resultat 1 - 5 av 346 avhandlingar innehållade orden complex constraints.

  1. 1. Geospatial Knowledge Discovery using Volunteered Geographic Information : a Complex System Perspective

    Författare :Tao Jia; Bin Jiang; Yifang Ban; Itzhak Benenson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; knowledge discovery; urban systems; complex system; VGI; OSM; GPS tracking dataset; scaling; heavy-tailed distribution detection; urban sprawl; Zipf’s law; human activity mobility patterns; agent-based modeling; complex network.;

    Sammanfattning : The continuous progression of urbanization has resulted in an increasing number of people living in cities or towns. In parallel, advancements in technologies, such as the Internet, telecommunications, and transportation, have allowed for better connectivity among people. LÄS MER

  2. 2. Structures in complex systems : Playing dice with networks and books

    Författare :Sebastian Bernhardsson; Petter Minnhagen; Stefan Bornholdt; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Complex systems; networks; statistical physics; biological networks; quantitative linguistics; word frequencies.; Physics; Fysik;

    Sammanfattning : Complex systems are neither perfectly regular nor completely random. They consist of a multitude of players who, in many cases, playtogether in a way that makes their combined strength greater than the sum of their individual achievements. LÄS MER

  3. 3. On low order controller synthesis using rational constraints

    Författare :Daniel Ankelhed; Anders Hansson; Anders Helmersson; Anders Forsgren; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; H-infinity synthesis; Linear Matrix Inequalities; rank constraints; polynomial constraints; interior point methods; Automatic control; Reglerteknik;

    Sammanfattning : In order to design robust controllers, H-infinity synthesis is a common tool to use. The controllers that result from these algorithms are typically of very high order, which complicates implementation. LÄS MER

  4. 4. Protein modelling by the zipping and assembly method with limited NMR-derived constraints

    Författare :Maryana Wånggren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Molecular dynamics simulations; protein folding; constraints;

    Sammanfattning : Molecular dynamics simulations, often combined with simulated annealing, are commonly used when calculating structural models of proteins, e.g. based on NMR experiments. However, one is often faced with limited and, sometimes, insufficient information for determining a well-resolved 3D structure. LÄS MER

  5. 5. Unseen job creators and firm growth barriers : the role of capital constraints and seniority rules

    Författare :Anders Bornhäll; Sven-Olov Daunfeldt; Niklas Rudholm; Dan Johansson; Marc Cowling; Örebro universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Firm growth; growth barriers; employment protection; institutions; capital constraints; Economics; Nationalekonomi; Complex Systems – Microdata Analysis;

    Sammanfattning : The topic of this thesis is to provide a deeper understanding of how the institutional framework affects firms’ hiring decisions.The first article focuses on a group of firms, called sleeping gazelles, that do not grow despite having high profits. LÄS MER