Sökning: "Lossy Compression"

Visar resultat 6 - 10 av 12 avhandlingar innehållade orden Lossy Compression.

  1. 6. Compression-based Data Identification and Representation Learning

    Författare :Hanwei Wu; Markus Flierl; Mikael Skoglund; Conci Nicola; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Large-scale data generation, acquisition, and processing are happening at everymoment in our society. This thesis explores the opportunities for applying lossycompression methods and concepts for improving information engineering techniquesthat transform a large amount of collected data into useful applications. LÄS MER

  3. 7. Enhancing Localization, Selection, and Processing of Data in Vehicular Cyber-Physical Systems

    Författare :Bastian Havers; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicular Cyber-Physical Systems; Stream Processing; Edge-to-Cloud Continuum; Provenance; Distributed Data Analysis;

    Sammanfattning : Connected devices on the edge of the Edge-to-Cloud (E2C) continuum are producing increasing amounts of data that hold the key to unlocking valuable use cases among a wide range of applications. In the vehicular domain, connected vehicles in large fleets (called Vehicular Cyber-Physical Systems or VCPSs) sense and collect terabytes of data such as time series and video, enabling everything from predictive maintenance to autonomous drive. LÄS MER

  4. 8. Towards a secure synchronous communication architecture for low-power wireless networks

    Författare :Kasun Hewage; Thiemo Voigt; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datavetenskap med inriktning mot datorkommunikation; Computer Science with specialization in Computer Communication;

    Sammanfattning : The Internet of Things (IoT) is becoming the future Internet where most day-to-day devices are connected to the Internet. These devices are often resource constrained and use low-power wireless communication. Hence networks of them are called low-power and lossy networks (LLNs). LÄS MER

  5. 9. Communication With Reconstruction and Privacy Constraints

    Författare :Kittipong Kittichokechai; Mikael Skoglund; Tobias J. Oechtering; Sennur Ulukus; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; source coding; channel coding; information privacy; physical layer security; action; side information; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Communication networks are an integral part of the Internet of Things (IoT) era. They enable endless opportunities for connectivity in a wide range of applications, leading to advances in efficiency of day-to-day life. While creating opportunities, they also incur several new challenges. LÄS MER

  7. 10. On Robust LPC-spectrum Coding and Vector Quantization

    Författare :Roar Hagen; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; robustness against channel noise; LPC-spectrum coding; vector quantization; speech coding; linear mapping of a block code;

    Sammanfattning : Digital speech coding is concerned with representing a discrete-time speech signal with as few bits per second as possible without introducing annoying artifacts in the coded speech. Many modern speech coders are based on Linear Predictive Coding (LPC) which employ a source-filter model for speech production. LÄS MER