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Visar resultat 1 - 5 av 66 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Efficient Map Matching and Discovery of Frequent and Dominant Movement Patterns in GPS Trajectory Data

   Författare :Can Yang; Yifang Ban; Gyözö Gidofalvi; Xiaoliang Ma; Mirco Nanni; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; map matching; contiguous sequential pattern mining; contiguous sequential pattern comparison; movement pattern detection; Kartmatchning; sammanhängande sekventiellt mönster utvinning; sammanhängande sekventiellt mönster jämförelse; rörelsemönster detektering; Geoinformatics; Geoinformatik;

   Sammanfattning : The wide deployment of Global Positioning System (GPS) sensors for movement data collection has enabled a wide range of applications in transportation and urban planning. Frequent and dominant movement patterns embedded in GPS trajectory data provide valuable knowledge including the spatial and temporal distribution of frequent routes selected by the tracked objects and the regular movement behavior in certain regions. LÄS MER

3. 2. Probabilistic Sequence Models with Speech and Language Applications

   Författare :Gustav Eje Henter; W. Bastiaan Kleijn; Arne Leijon; Gernot Kubin; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Time series; acoustic modelling; speech synthesis; stochastic processes; causal-state splitting reconstruction; robust causal states; pattern discovery; Markov models; HMMs; nonparametric models; Gaussian processes; Gaussian process dynamical models; nonlinear Kalman filters; information theory; minimum entropy rate simplification; kernel density estimation; time-series bootstrap;

   Sammanfattning : Series data, sequences of measured values, are ubiquitous. Whenever observations are made along a path in space or time, a data sequence results. To comprehend nature and shape it to our will, or to make informed decisions based on what we know, we need methods to make sense of such data. LÄS MER

4. 3. Statistical methods for biomarker discovery in proteomics

   Författare :Chuen Seng Tan; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :Proteomics; mass spectrometry; SELDI; MALDI; peak detection; signal detection; peak annotation; transcriptomics; data integration; maximum covariance analysis; generalized singular value decomposition;

   Sammanfattning : Surface-Enhanced Laser Desorption and Ionization (SELDI) is a promising proteomic technique for discovering biomarkers. However, the pre-processing of the raw data is still problematic. LÄS MER

5. 4. Discovery and validation of protein biomarkers for lung cancer

   Författare :Luigi De Petris; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : Lung cancer is a disease characterized by high incidence and mortality rates as well as by a remarkable resistance to common treatment strategies. Reliable and validated biomarkers could represent a possible breakthrough in the management of this tumor type, by facilitating diagnosis, refining prognosis and providing guidance towards the choice of the most appropriate therapy. LÄS MER

7. 5. Celestial Orientation in Dim Light

   Författare :Marie Dacke; Funktionell zoologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polarisation pattern; moon; polrised light detection; twilight; dim light; dung beetle; Zoologi; spider; vision; orientation; Zoology;

   Sammanfattning : The polarization pattern of skylight offers many animals a reference for visual compass orientation. In those cases when this optical compass is identified, the receptors involved are often confined to a small part of an eye built predominantly for other visual tasks. LÄS MER