Sökning: "Scalar data"

Visar resultat 1 - 5 av 95 avhandlingar innehållade orden Scalar data.

  1. 1. Data-Centric AI for Software Performance Engineering - Predicting Workload Dependent and Independent Performance of Software Systems Using Machine Learning Based Approaches

    Författare :Hazem Samoaa; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Representation Learning; Software Performance Prediction; Machine Learning; Source code Representation; Graph Neural Network; Deep Learning; Data-Centric AI;

    Sammanfattning : Context: Machine learning (ML) approaches are widely employed in various software engineering (SE) tasks. Performance, however, is one of the most critical software quality requirements. Performance prediction is estimating the execution time of a software system prior to execution. LÄS MER

  3. 2. Data Analysis in High-Energy Physics as a Differentiable Program

    Författare :Nathan Simpson; Partikel- och kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; differentiable programming; machine learning; particle physics;

    Sammanfattning : Machine learning methods are now ubiquitous in physics, but often target objectives that are one or two steps removed from our physics goals. A prominent example of this is the discrimination between signal and background processes, which doesn’t account for the presence of systematic uncertainties – something crucial for the calculation of quantities such as the discovery significance and upper limits. LÄS MER

  4. 3. Static Visualizations for Dynamic Hierarchies

    Författare :Wiebke Köpp; Tino Weinkauf; Vijay Natarajan; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dynamic hierarchies; Static visualization; Pixel-based visualization; Scalar data; Topology; Layout stability; Dynamiska hierarkier; Statisk visualisering; Pixelbaserad visualisering; Skalärdata; Topologi; Layout-stabilitet; Datalogi; Computer Science;

    Sammanfattning : Dynamic hierarchical data describes phenomena in a wide range of domains, from file management to demographics and business administration, as well as feature extraction results in spatial scientific data. As with all data, visualization is an integral step for gaining understanding about dynamic hierarchical data. LÄS MER

  5. 4. Comparison and Tracking Methods for Interactive Visualization of Topological Structures in Scalar Fields

    Författare :Himangshu Saikia; Tino Weinkauf; Filip Sadlo; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; topology; scalar fields; merge tree; tree comparison; tracking; similarity search; Computer Science; Datalogi;

    Sammanfattning : Scalar fields occur quite commonly in several application areas in both static and time-dependent forms. Hence a proper visualization of scalar fieldsneeds to be equipped with tools to extract and focus on important features of the data. LÄS MER

  7. 5. Space-Time Algorithms for Mobile Communications

    Författare :Per Pelin; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; antenna array; model order selection; equalization; Bootstrap; space-time propagation; synchronization; RAKE-combiner; real data; data reduction; spatial diversity; finite alphabet;

    Sammanfattning : Algorithms are presented for space-time signal processing in mobile communication systems employing base station antenna arrays. Two main issues are concerned. Reception of data transmitted on the uplink (mobile to base station transmission), and estimation of the parameters of the space-time mobile channel. LÄS MER