Search for dissertations about: "Cluster time series"

Showing result 1 - 5 of 43 swedish dissertations containing the words Cluster time series.

2. 1. Visualizing Cluster Patterns at Scale : A Model and a Library

   Author : Elio Ventocilla; Maria Riveiro; Göran Falkman; Rafael M. Martins; Katerina Vrostou; Högskolan i Skövde; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Visual analytics; cluster patterns; big data; unsupervised learning; multidimensional projections; vector quantization; progressive visual analytics; Skövde Artificial Intelligence Lab SAIL ; Skövde Artificial Intelligence Lab SAIL ;

   Abstract : Large quantities of data are being collected and analyzed by companies and institutions, with the aim of extracting knowledge and value. When little is known about the data at hand, analysts engage in exploratory data analysis to achieve a better understanding. READ MORE

4. 2. Theoretical Reflections of Solvation in Polar Media

   Author : Daniel Hagberg; Beräkningskemi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; kvantkemi; Teoretisk kemi; quantum chemistry; Theoretical chemistry; Coordination; Water; Uranyl; Intermolecular forces; Simulation; Dielectric; Cluster; Hofmeister series; Ion; Interaction; Dipole;

   Abstract : Using experiments it is rather easy to measure things on the macroscopic length scale, while it is much harder to measure something in the microscopic world like molecular structure. The opposite is true in theoretical chemistry. READ MORE

5. 3. Data Abstraction and Pattern Identification in Time-series Data

   Author : Prithiviraj Muthumanickam; Matthew Cooper; Katerina Vrotsou; Aida Nordman; Jimmy Johansson; Anders Ynnerman; Silvia Miksch; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : Data sources such as simulations, sensor networks across many application domains generate large volumes of time-series data which exhibit characteristics that evolve over time. Visual data analysis methods can help us in exploring and understanding the underlying patterns present in time-series data but, due to their ever-increasing size, the visual data analysis process can become complex. READ MORE

6. 4. Scan Statistics for Space-Time Cluster Detection

   Author : Benjamin Allévius; Martin Sköld; Michael Höhle; Paula Moraga-Serrano; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Scan statistics are used by public health agencies to detect and localize disease outbreaks. This thesis provides an overview of scan statistics in the context of prospective disease surveillance and outbreak detection, presents a novel scan statistic to deal with the type of zero-abundant data that is often encountered in these settings, and—perhaps most importantly—implements this and other scan statistics in a freely available and open source R package. READ MORE

7. 5. On the occurrence and possible causes of motor neuron disease in Sweden

   Author : Lars-Gunnar Gunnarsson; Linköpings universitet; []
   Keywords : Epidemiology; amyotrophic lateral sclerosis; incidence; prevalence; mortality; cluster; Iisk factors; occupation; environment; agricultural work; electrical work; welding; solvents; heredity; MEDICINE; MEDICIN;

   Abstract : A series of investigations have been performed to study secular trends of motor neuron disease (MND) morbidity and mortality in Sweden, to identify time and/or space clusters, if any, and to uncover risk factors. The occurrence of the disease was estimated from incidence, prevalence and mortality rates, and the strength of various determinants was evaluated by means of the case-control approach, using population controls. READ MORE