Sökning: "interval analysis"

Visar resultat 31 - 35 av 406 avhandlingar innehållade orden interval analysis.

1. 31. Towards a flexible statistical modelling by latent factors for evaluation of simulated responses to climate forcings

   Författare :Ekaterina Fetisova; Gudrun Brattström; Anders Moberg; Rolf Sundberg; Johan Lindström; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Confirmatory Factor Analysis; Measurement Error models; Structural Equation models; Wald confidence interval; Fieller confidence set; Climate model simulations; Climate forcings; Climate proxy data; Detection and Attribution; Mathematical Statistics; matematisk statistik;

   Sammanfattning : In this thesis, using the principles of confirmatory factor analysis (CFA) and the cause-effect concept associated with structural equation modelling (SEM), a new flexible statistical framework for evaluation of climate model simulations against observational data is suggested. The design of the framework also makes it possible to investigate the magnitude of the influence of different forcings on the temperature as well as to investigate a general causal latent structure of temperature data. LÄS MER

3. 32. Interval cancers, positive predictive value for malignance and other early quality indicators in mammographic screening for breast cancer

   Författare :Bedrich Vitak; Ingvar Andersson; Linköpings universitet; []
   Nyckelord :Mammography; Breast neoplasm; Breast cancer screening; Interval breast cancer; Metastasis; Mortality; MEDICINE; MEDICIN;

   Sammanfattning : The study was designed to evaluate early quality indicators in screening for breast cancer. lt comprised, (i) investigations of compliance, recall, referral, cancer detection, and interval cancer rates in the Östergötland screening programme of women aged 40-74 years; (ii) evaluation of the three-stage diagnostic procedure for pre-operative assessment of women with suspicious mammographic findings; (iii) comprehensive analysis of all invasive interval cancers detected; and (iv) investigation into how to reduce the number of interval cancers without a concomitant increase in false positives. LÄS MER

4. 33. Hierarchical Scale Analysis of Images Using Phase Description

   Författare :Leif Haglund; Linköpings universitet; []
   Nyckelord :TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : Scale analysis and description has over the last years become one of the major research field!The thesis describes a new algorithm which detects in what scale an event appears and also in what scale it disappears. In this way the scale space is subdivided into a number of intervals. LÄS MER

5. 34. Performance Analysis and Optimization for Time Critical Networking

   Författare :Emmanouil Fountoulakis; Nikolaos Pappas; Vangelis Angelakis; Qi Liao; Giuseppe Durisi; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Future communication systems will be characterized by heterogeneous traffic and requirements. Time critical applications like cyberphysical systems, augmented and virtual reality, raise the need for a low-latency based network. At the same time, conventional devices requiring for high throughput will co-exist with time critical applications. LÄS MER

7. 35. Distribution of expected utility in second-order decision analysis

   Författare :David Sundgren; Högskolan i Gävle; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; beslutsanalys; andra ordningens fördelningar; förväntad nytta; Computer and systems science; Data- och systemvetenskap;

   Sammanfattning : In decision analysis maximising the expected utility is an often used approach in choosing the optimal alternative. But when probabilities and utilities are vague or imprecise expected utility is fraught with complications. LÄS MER