Sökning: "multi-channel"

Visar resultat 1 - 5 av 109 uppsatser innehållade ordet multi-channel.

1. 1. Heart rate estimation from wrist-PPG signals in activity by deep learning methods

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

   Författare :Marie-Ange Stefanos; [2023]
   Nyckelord :Deep Learning; Medical Data; Signal Processing; Heart Rate Estimation; Wrist Photoplethysmography; Djup lärning; Medicinska Data; Signalbehandling; Pulsuppskattning; Handledsfotopletysmograf;

   Sammanfattning : In the context of health improving, the measurement of vital parameters such as heart rate (HR) can provide solutions for health monitoring, prevention and screening for certain chronic diseases. Among the different technologies for HR measuring, photoplethysmography (PPG) technique embedded in smart watches is the most commonly used in the field of consumer electronics since it is comfortable and does not require any user intervention. LÄS MER

3. 2. Longtail-fenomenet i svenskdagligvaruhandel : En kvantitativ studie av försäljningskoncentrationen i den svenska dagligvaruhandelns e-handel jämfört med fysisk handel.

   Kandidat-uppsats, Linnéuniversitetet/Institutionen för marknadsföring och turismvetenskap (MTS)

   Författare :Martin Amrén; Albin Nilsson; [2023]
   Nyckelord :Long tail; Pareto; superstars; grocery; e-commerce; omni-channel; multi-channel; sales concentration; Longtail; pareto; superstars; dagligvaror; e-handel; omni-channel; multi-channel; försäljningskoncentration;

   Sammanfattning : Bakgrund: Med digital utveckling ökar användandet av digitala kanaler för att köpa produkter. Utvecklingen sätter ökad press på handeln att utveckla sitt digitala erbjudande. Problemformulering: Förutsättningarna att driva handel skiljer sig åt online jämfört med offline, sett både ur perspektiv från återförsäljare och köpare. LÄS MER

4. 3. Methods for determining focal point and delay for ultrasound arrays and multichannel electronics

   Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

   Författare :Svante Rosenlind; [2023]
   Nyckelord :Focusing algorithms; k-wave; Spatiotemporal inverse filter; Gerchberg- Saxton algorithm; Focused ultrasound; Technology and Engineering;

   Sammanfattning : High intensity focused ultrasound is a growing technique for tissue ablation, among other uses, and given its destructive capabilities, there is a need for control of where the energy is delivered. There exist a number of methods for focusing such ultrasound arrays, but these often assume prior knowledge of the impulse response, or require extensive full-system simulations. LÄS MER

5. 4. Multi-Channel Sentiment Analysis in Swedish as Basis for Marketing Decisions

   Master-uppsats, Stockholms universitet/Institutionen för data- och systemvetenskap

   Författare :Malin Uhlander; [2023]
   Nyckelord :omni-channel marketing; sentiment analysis; Swedish; natural language processing; opinion mining;

   Sammanfattning : In today’s world, it is not enough for companies to consider any one social media channel in isolation. Instead, they must provide their customers with a unified experience across channels and consider interdependencies between channels. LÄS MER

7. 5. Elastic Net Regression for Prosthesis Control in Short Residual Limb Amputees: Performance and Generalizability

   Master-uppsats, Lunds universitet/Avdelningen för Biomedicinsk teknik

   Författare :Oskar Berg; [2023]
   Nyckelord :Neuroengineering; Statistics; Biomedical Signal Processing; Technology and Engineering;

   Sammanfattning : This Master's thesis in Biomedical Engineering investigates the performance and generalizability of linear regression models in context of prosthesis control for short residual limb amputees. This thesis uses intramuscular electromyography data, and a regression and emplys a regression technique called Elastic Net Regression - a technique that combines L1 and L2-regularization - to predict 1-DOF isometric forces outputs from fingers and the wrist. LÄS MER