Sökning: "square matrix"

Visar resultat 21 - 25 av 47 uppsatser innehållade orden square matrix.

  1. 21. Numerical Range of Square Matrices : A Study in Spectral Theory

    Kandidat-uppsats, Linköpings universitet/Matematik och tillämpad matematik

    Författare :Erik Jonsson; [2019]
    Nyckelord :numerical range; Gershgorin region; square matrix; spectrum;

    Sammanfattning : In this thesis, we discuss important results for the numerical range of general square matrices. Especially, we examine analytically the numerical range of complex-valued $2 \times 2$ matrices. Also, we investigate and discuss the Gershgorin region of general square matrices. LÄS MER

  3. 22. Optimizing Bike Sharing System Flows using Graph Mining, Convolutional and Recurrent Neural Networks

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Davor Ljubenkov; [2019]
    Nyckelord :Data Science; Data Visualization; Bike-Sharing Systems; Graph Mining; Time Series Prediction; Machine Learning; Deep Learning; Recurrent Neural networks; Convolutional Neural Networks; Shareable Cities; Urban Informatics;

    Sammanfattning : A Bicycle-sharing system (BSS) is a popular service scheme deployed in cities of different sizes around the world. Although docked bike systems are its most popular model used, it still experiences a number of weaknesses that could be optimized by investigating bike sharing network properties and evolution of obtained patterns. LÄS MER

  4. 23. Evaluation of Target Tracking Using Multiple Sensors and Non-Causal Algorithms

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Albin Vestin; Gustav Strandberg; [2019]
    Nyckelord :evaluation; target tracking; multiple sensors; non-causal; smoother; smoothing; tracking; vehicle tracking; camera; lidar; estimate; estimation; prediction; vehicle dynamics; sensor fusion; real-time tracking; extended kalman filter; filter validation; validation; position estimation; velocity estimation; dynamic model; model complexity; multi object tracking; multiple object; tracking; single object tracking; data association; tracking fundamentals; iterated kalman filter; track management; gnn; global nearest neighbour; mahalanobis; mahalanobis distance; performance evaluation; differential gps; dgps; roi; ego; several sensors; sensors; rmse; root mean square error; invertible motion; anti-causal motion; anti-causal tracking; constant velocity; gnn; imu; tfs; two filter smoother; ekf; rts; radar; inertial measurement unit; nonlinear; nonlinear systems; mono camera; monocular camera; noise model; tracking performance; fixed interval smoothing; m n logic; centralized fusion; non-causal object tracker; car tracking; car dynamics; automotive; active safety; object tracking; automotive industry; thesis; master; reverse dynamics; reverse tracking; reverse sequence; sequence tracking; data propagation; ground truth; estimating ground truth; additional sensors; mounted sensors; true estimates; environment; comparison; algorithm; independent targets; overlapping; measurements; occluded; track switch; improve; lower; uncertainty; more; certain; state; process; noise; covariance; sampling; image; sprt; adas; cnn; cv; pdf; track; target; ego; tracker; tentative track; observatiom; online tracking; offline tracking; online; offline; recorded; sequences; robust; self driving; self-driving; car; traffic; trajectory; true state; scenario; scenarios; future; accurate; output; advanced; driver; assistance; systems; non-linear; complex noise; pedestrian; truck; bus; maneuvering; vehicles; processed; measurement; frame; state; correction; probability; density; function; tuning; likelihood; transition; measurement; motion; model; recursion; gaussian; approximation; distribution; linear; jacobian; multiplicative; noise; ratio; ad; hoc; ad hoc; state; space; approach; backward; auction; euclidean; distance; statistical; threshold; gating; association; margin; normalize; covariance; matrix; fusion; confirmed; rejected; tentative; history; absolute; error; modular; ego motion; parameters; variables; logg; hardware; specification; fused; causal; factorization; independent; uncorrelated; transform; moving; rotation; translation; oncoming; overtaking;

    Sammanfattning : Today, the main research field for the automotive industry is to find solutions for active safety. In order to perceive the surrounding environment, tracking nearby traffic objects plays an important role. LÄS MER

  5. 24. Naturalistiska planteringar för urbana landskap : en idégestaltning baserad på hedmarkslika växtsamhällen

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Urban and Rural Development

    Författare :Johanna Reppling; [2019]
    Nyckelord :urban ekologi; växtsamhällen; växtgestaltning; naturalistisk design;

    Sammanfattning : I detta arbete undersöks hur ekologiska principer kan tillämpas i urbana planteringar i varma och torra lägen utifrån frågeställningen: Hur kan en gestaltning med naturalistiska planteringar med hedmarksbiotoper som förebild utformas på Ulls Hus innergård? Detta utifrån en önskan att undersöka på vilka sätt det är möjligt att möta de utmaningar som klimatförändringarna för med sig för urbana planteringar i form av ett varmare och periodvis torrare klimat. Fokus ligger på växtgestaltning med relativt torktåligt växtmaterial anpassat till näringsfattiga och genomsläppliga substrat. LÄS MER

  7. 25. Deep Learning for Error Prediction In MIMO-OFDM system With Maximum Likelihood Detector

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Baoqing She; [2018]
    Nyckelord :MIMO-OFDM; CRC; BLER; Detector; SINR; MCS Selection; Link Adaptation; Deep Learning; Neural Networks;

    Sammanfattning : To increase link throughput in multi-input multi-output (MIMO) orthogonal frequencydivision multiplexing (OFDM) systems, transmission parameters such as code rate andmodulation order are required to be set adaptively. Therefore, block error rate (BLER)becomes a crucial measure which illustrates the quality of the link, thus being used in LinkAdaptation (LA) to determine the transmission parameters. LÄS MER