Sökning: "quality predictor"

Visar resultat 1 - 5 av 161 avhandlingar innehållade orden quality predictor.

1. 1. On Enhancement and Quality Assessment of Audio and Video in Communication Systems

   Författare :Andreas Rossholm; Blekinge Tekniska Högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; QoE; video quality assessment; video quality metric; multi-linear regression; artificial neural network; support vector machine; quality predictor; machine learning; temporal scaling; spatial scaling; video compression; deblocking filter; noise cancelling; synchronization; audio delay; video delay; GSM interference signal; noise cancellation; notch filtering;

   Sammanfattning : The use of audio and video communication has increased exponentially over the last decade and has gone from speech over GSM to HD resolution video conference between continents on mobile devices. As the use becomes more widespread the interest in delivering high quality media increases even on devices with limited resources. LÄS MER

3. 2. Protein Model Quality Assessment : A Machine Learning Approach

   Författare :Karolis Uziela; Arne Elofsson; Liam McGuffin; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Protein Model Quality Assessment; structural bioinformatics; machine learning; deep learning; support vector machine; proq; Artificial Neural Network; protein structure prediction; Biochemistry towards Bioinformatics; biokemi med inriktning mot bioinformatik;

   Sammanfattning : Many protein structure prediction programs exist and they can efficiently generate a number of protein models of a varying quality. One of the problems is that it is difficult to know which model is the best one for a given target sequence. Selecting the best model is one of the major tasks of Model Quality Assessment Programs (MQAPs). LÄS MER

4. 3. Health-Related Quality of Life in Asthma

   Författare :Mai Leander; Anna Rask-Andersen; Christer Janson; Alf Tunsäter; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Asthma; Adult; Quality of Life; Cohort Studies; Longitudinal study; Questionnaires; Epidemiology; Prognosis; Gothenburg Quality of Life Instrument; Göteborg Quality of Life Instrument; MEDICINE; MEDICIN; Caring sciences;

   Sammanfattning : Health-related quality of life (HRQL) has become an important outcome in asthma, since traditional outcomes, such as respiratory symptoms and pulmonary function, might not entirely express the patient’s perception of the limitations caused by the disease. The aim of this thesis was to study HRQL in asthma and to analyse if HRQL was related to asthma onset and prognosis. LÄS MER

5. 4. Improving user comprehension and entertainment in wireless streaming media : introducing cognitive quality of service

   Författare :Greger Wikstrand; Lars-Erik Janlert; Jerry Eriksson; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Multicast channels; Quality of Service; Cognitive QoS; Wireless LAN; Multiaccess Communication; IEEE 802.11; Displays; Mobile Communications; Video Coding; Tracking; Animation; Cognitive Psychology; Experience Design; Computer science; Datavetenskap;

   Sammanfattning : In future mobile networks service quality might be poor. A new measure is needed to be able to assess services in terms of their effectiveness and usefulness despite their lacking visual appeal. Cognitive Quality of Service is a way to measure the effectiveness in use of a networked service. LÄS MER

7. 5. Assessment of assistive technology : outcomes, costs and quality

   Författare :Ursula Hass; Linköpings universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : Technology assessment aims at providing information about costs and effects, in order to support decision making and resource allocation. The purpose of this thesis is to, through empirical studies on assistive technologies, investigate the contribution of various kinds of outcome measures, and provide knowledge about outcomes, costs and quality of services. LÄS MER