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We investigate if we can find evidence of house effects in Swedish political opinion polls from 2006 to 2014. In order to respect the inherent restriction of the simplex sample space, we apply compositional data analysis and Aitchison geometry. We use compositional locally weighted regression (C-loess) to estimate the share of voters for each party at given dates, a poll of polls. The estimated sh
In this work, we propose a computationally efficient time-updating algorithm for estimating the spectral content of a signal with missing samples. The algorithm extends earlier work on the topic by formulating a data-interpolation scheme reducing the required complexity to a fraction of the earlier efficient implementation, without resulting in any noticeable loss of performance for even a quite l
This chapter analyses horizontal institutional interlinkages by stressing their embeddedness in overarching global norms. It explains the nature of institutional interlinkages in various policy domains, and their consequences for the development of specific global regimes. We explore, in particular, how certain dominant global norms may be reflected in the positional differences (and their resolut
We find effective (homogenized) parameters for Maxwell's equations when the microscopic scale becomes small, but not infinitesimal, compared to the wavelength. The analysis is based on a singular value decomposition of the differential operator in Maxwell's equations
The measured water vapour resistances of clothing ensembles differ among laboratories particularly for impermeable clothing. Due to the moisture transfer in the clothing ensemble, evaporative heat losses in initial, transient and steady state phases are different. The purpose of this study was to investigate moisture absorption inside underwear and outer layer as a function of time, to quantify th
This chapter presents a psycholinguistic account of the developmental sequences found in second language acquisition (SLA). Building on Levelt’s (1989) model of speech production, Processability Theory (PT: Pienemann 1998, 2005) proposes that the order in which morpho-syntactic structures are acquired will be controlled by the processing requirements of those structures. The cross- linguistic vali
In this thesis improved upper bounds for several important combinatorial problems are provided. Below is a list of the main results showed in the thesis. The problem of determining whether a k-connected partial k-tree is isomorphic to subgraph of another partial k-tree is shown to be solvable in time O(nk+2). The problem of determining the maximum number of n
Föreliggande rapport är en oberoende utvärdering av projektet Creating Competitive Jobs (CCJobs). Rapporten summerar resultat och lärdomar från projektet samt lyfter fram om aspekter av CCJobs som bör vidareutvecklas. Projektets övergripande syfte var att skapa nya arbetstillfällen genom att möjliggöra ett ömsesidigt utbyte mellan företag och lärosäten inom högre utbildning. En grundläggande princ
The predicament in which we find ourselves today is that many professionals lack a sufficient grounding in formal methods, tools and techniques to enable them to make an appropriate selection for different kinds of problem. This can mean that complexity remains unrecognized and ambiguous problem situations are addressed as if they were clear and straightforward, resulting in inadequate solutions t
One of the exciting emerging uses of DSRC/WAVE technology is the ability to monitor real-time road traffic conditions with high resolution, using beacons transmitted by individual vehicles, and make informed traffic control decisions such as traffic light timing or route advice. However, previous studies have shown that achieving a high level of accuracy in traffic density estimation requires very
