Sökning: "subspace"

Visar resultat 1 - 5 av 50 uppsatser innehållade ordet subspace.

  1. 1. A Conjugate Residual Solver with Kernel Fusion for massive MIMO Detection

    Master-uppsats, Högskolan i Halmstad/Centrum för forskning om tillämpade intelligenta system (CAISR)

    Författare :Ioannis Broumas; [2023]
    Nyckelord :MIMO; massive MIMO; GPU; CUDA; Software Defined Radio; SDR; MMSE; ZF; zero-forcing; parallel detection; iterative methods; conjugate residual; parallel computing; kernel fusion;

    Sammanfattning : This thesis presents a comparison of a GPU implementation of the Conjugate Residual method as a sequence of generic library kernels against implementations ofthe method with custom kernels to expose the performance gains of a keyoptimization strategy, kernel fusion, for memory-bound operations which is to makeefficient reuse of the processed data. For massive MIMO the iterative solver is to be employed at the linear detection stageto overcome the computational bottleneck of the matrix inversion required in theequalization process, which is 𝒪(𝑛3) for direct solvers. LÄS MER

  3. 2. A real-time Multi-modal fusion model for visible and infrared images : A light-weight and real-time CNN-based fusion model for visible and infrared images in surveillance

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

    Författare :Jin Wanqi; [2023]
    Nyckelord :Image fusion; deep learning; surveillance; CNN; real time; Bildfusion; djupinlärning; övervakning; CNN; realtid;

    Sammanfattning : Infrared images could highlight the semantic areas like pedestrians and be robust to luminance changes, while visible images provide abundant background details and good visual effects. Multi-modal image fusion for surveillance application aims to generate an informative fused images from two source images real-time, so as to facilitate surveillance observatory or object detection tasks. LÄS MER

  4. 3. Are these numbers real?

    Master-uppsats, Göteborgs universitet/Institutionen för data- och informationsteknik

    Författare :Karl Griphammar; [2022-10-14]
    Nyckelord :Machine learning; data science; deep generative models; GAN; quality control; smart manufacturing; subspaces;

    Sammanfattning : Smart manufacturing refers to the use of digitalization for improving and automating manufacturing processes. One use case is artificial intelligence (AI) used in quality control, which can reduce production costs and heavy labor. Training AI models requires large amounts of annotated data, which can be costly to obtain. LÄS MER

  5. 4. Another Slice of Multivariate Dimension Reduction

    Kandidat-uppsats, Linköpings universitet/Tillämpad matematik; Linköpings universitet/Tekniska fakulteten

    Författare :Carl Ekblad; [2022]
    Nyckelord :dimension reduction; reducing subspace; dimension reduction subspace; envelopes; dimensionsreducering; reducerande underrum; dimensionsreducerande underrum; kuvert;

    Sammanfattning : This thesis presents some methods of multivariate dimension reduction, with emphasis on methods guided by the work of R.A. Fisher. Some of the methods presented can be traced back to the 20th century, while some are much more recent. LÄS MER

  7. 5. Analysis, Implementation and Evaluation of Direction Finding Algorithms using GPU Computing

    Master-uppsats, Linköpings universitet/Institutionen för datavetenskap

    Författare :Regina Andersdotter; [2022]
    Nyckelord :GPU; GPU Computing; Direction Finding; GPU Suitability; CUDA; Multiple Signal Classification; Weighted Subspace Fitting; Correlative Interferometer; runtime; angle resolution; block size;

    Sammanfattning : Direction Finding (DF) algorithms are used by the Swedish Defence Research Agency (FOI) in the context of electronic warfare against radio. Parallelizing these algorithms using a Graphics Processing Unit (GPU) might improve performance, and thereby increase military support capabilities. LÄS MER