Sökning: "algoritmer"

Visar resultat 1 - 5 av 210 avhandlingar innehållade ordet algoritmer.

  1. 1. Crowdsensing-driven Route Optimisation Algorithms for Smart Urban Mobility

    Författare :Petar Mrazovic; Mihhail Matskin; Anne Håkansson; Josep Luis Larriba-Pey; Roman Dumitru; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; smart cities; smart mobility; urban mobility; mobile crowdsensing; route journey planning; route optimisation; heuristic algorithms; smarta städer; smart rörlighet; rörlighetsavkänning; mobil publikmätning; ruttplanering; ruttoptimering; heuristiska algoritmer; Ciudades inteligentes; movilidad inteligente; mobile crowdsensing; planificación de viajes rutas; optimización de rutas; algoritmos heurísticos; Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Urban mobility is often considered as one of the main facilitators for greener and more sustainable urban development. However, nowadays it requires a significant shift towards cleaner and more efficient urban transport which would support for increased social and economic concentration of resources in cities. LÄS MER

  3. 2. Numerical Conformal mappings for regions Bounded by Smooth Curves

    Författare :Anders Andersson; Börje Nilsson; Joachim Toft; Michael Benedicks; Växjö universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Schwarz-Christoffel mapping; rounded corners; tangent polygons; outer polygon; zipper algorithm; Schwarz-Christoffelavbildningen; rundade hörn; tangentpolygoner; yttre polygoner; zipper-algoritmer; Applied mathematics; Tillämpad matematik; Mathematics; Matematik;

    Sammanfattning : Inom många tillämpningar används konforma avbildningar för att transformera tvådimensionella områden till områden med enklare utseende. Ett exempel på ett sådant område är en kanal av varierande tjocklek begränsad av en kontinuerligt deriverbar kurva. LÄS MER

  4. 3. Evolutionary Materialism: Towards a Theory of Anticipatory Adaptive Assemblages

    Författare :Magnus Larsson; Magnus Wålinder; Andreas Falk; Olga Popovic Larsen; KTH; []
    Nyckelord :Building materials; multi-objective optimisation; genetic algorithms; evolutionary architecture; material phase transitions; generative LCA; parametric epistemic things; presilience; postponism; anticipation; adaptation; simulation; Grasshopper; Byggnadsmaterial; flermålsop2mering; gene2ska algoritmer; evolu2onär arkitektur; materialbaserade fasövergångar; genera2v LCA; parametriska epistemiska 2ng; presiliens; postponism; antecipa2on; adap2on; simulering; Grasshopper; Building Materials; Byggnadsmaterial;

    Sammanfattning : This thesis is an investigation into how meta-heuristic multi-objective optimisation processes (genetic algorithms driven by evolutionary solvers) can bring about materials-related advantages in architectural performance. It redefines the architect’s and engineer’s role from being designers of a singular space or structure to being designers of entire species of spaces, and discusses a particular method – anticipatory adaptive assemblages (AAA) – that allows such processes to produce many generations of design iterations that eventually yield individuals optimised for a set of predefined objectives. LÄS MER

  5. 4. Accuracy, efficiency and robustness for rigid particle simulations in Stokes flow

    Författare :Anna Broms; Anna-Karin Tornberg; Mattias Sandberg; Eric Keaveny; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Stokes flow; rigid particles; accuracy; fundamental solutions; method of images; multiblob; contact avoiding; complementarity problem; barrier method; elliptic PDE; grid optimisation; pair-correction; boundary integral equations; Stokesflöde; noggrannhet; stela partiklar; fundamentallösningar; randintegralekvation; reflektionspunkter; multiblob; kontaktundvikande algoritmer; komplementaritetsproblem; barriärmetod; elliptisk PDE; gridoptimering; parkorrektion; Numerical Analysis; Numerisk analys;

    Sammanfattning : The thesis concerns simulation techniques for systems of nano- to micro-scaled rigid particles immersed in a viscous fluid, ubiquitous in nature and industry. With negligible fluid inertia, the set of PDEs known as the Stokes equations can be used to model the hydrodynamics. LÄS MER

  7. 5. Parallel Algorithms and Library Software for the Generalized Eigenvalue Problem on Distributed Memory Computer Systems

    Författare :Björn Adlerborn; Bo Kågström; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; computer and systems sciences; data- och systemvetenskap;

    Sammanfattning : We present and discuss algorithms and library software for solving the generalized non-symmetric eigenvalue problem (GNEP) on high performance computing (HPC) platforms with distributed memory. Such problems occur frequently in computational science and engineering, and our contributions make it possible to solve GNEPs fast and accurate in parallel using state-of-the-art HPC systems. LÄS MER