Browsing by Author "Andersson, Eva"
Now showing items 1-20 of 28
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A monitoring system for detecting starts and declines of influenza epidemics
Andersson, Eva (2003-12-01)The aim is to detect an influenza outbreak as soon as possible. Data are weekly reports of number of patients showing influenza-like symptoms. At each additional observation we decide whether a change has occurred or ... -
Detection of turning points in business cycles
Andersson, Eva; Bock, David; Frisén, Marianne (University of Gothenburg, 2002-06-01)Methods for on-line monitoring of business cycles are compared with respect to the ability of early prediction of the next turn by an alarm for a turn in a leading index. Three likelihood based methods for turning point ... -
Effect of dependency in systems for multivariate surveillance.
Andersson, Eva (2007-11-22)In many situations we need a system for detecting changes early. Examples are early detection of disease outbreaks, of patients at risk and of financial instability. In influenza outbreaks, for example, we want to detect ... -
Elevers datoranvändning i Montessorimiljö
Andersson, Eva (2012-03-16)Bakgrund: Maria Montessoris vision var att hennes pedagogik inte skulle bli åldrad och förlegad utan att ständigt hållas levande. Med ett växande och varierande samhälle bör IKT användas som ett naturligt arbetssätt i den ... -
"En stor stark, tack!" En studie om Alkohollagens tillämpning ur ett rättssociologiskt perspektiv
Andersson, Eva; Claësson, Ulrika (2009-08-31)Syfte: Uppsatsens syfte är dels att undersöka hur alkohollagen tillämpas på krogar i centrala Göteborg vad gäller legitimationskontroll vid servering till unga. Ett annat syfte är att studera domsluten för brott mot ... -
Evaluation of multivariate surveillance
Frisén, Marianne; Andersson, Eva; Schiöler, Linus (2009-05-15)Multivariate surveillance is of interest in many areas such as industrial production, bioterrorism detection, spatial surveillance, and financial transaction strategies. Some of the suggested approaches to multivariate ... -
Hotelling´s T2 Method in Multivariate On-Line Surveillance. On the Delay of an Alarm
Andersson, Eva (2008-11-28)A system for detecting changes in an on-going process is needed in many situations. On-line monitoring (surveillance) is used in early detection of disease outbreaks, of patients at risk and of financial instability. By ... -
Le français au sein des institutions de l'Union européenne
Andersson, Eva (2015-02-19)Ce mémoire a pour but d'analyser de plus près l'influence de l'anglais (langue source) sur le français (langue cible) au sein de la Commission européenne, ou, en d'autres termes, l'interférence linguistique de l'anglais. ... -
Likelihood based methods for detection of turning points in business cycles - A comparative study
Andersson, Eva; Bock, David; Frisén, Marianne (University of Gothenburg, 2001-05-01)Methods for on-line monitoring of business cycles are compared with respect to the ability of early prediction of the next tum by an alarm for a tum in a leading index. Three likelihood-based methods for turning point ... -
Modeling influenza incidence for the purpose of on-line monitoring
Andersson, Eva; Bock, David; Frisén, Marianne (2007-11-27)We describe and discuss statistical models of Swedish influenza data, with special focus on aspects which are important in on-line monitoring. Earlier suggested statistical models are reviewed and the possibility of using ... -
Monotonicity aspects on seasonal adjustment
Andersson, Eva (University of Gothenburg, 1999-03-01)Monotonicity is an important property in time series analysis. It is often of interest to know if the seasonal adjustment method used has altered the monotonicity or changed the time of turning points in a time series that ... -
Monotonicity restrictions used in a system of early warnings applied to monthly economic data
Andersson, Eva (University of Gothenburg, 1999-04-01)When making political decisions, the ability to make correct predictions about the behaviour of the business cycle in the future is important. The ability to forecast business cycles determines the success of, for example, ... -
On monotonicity and early warnings with applications in economics
Andersson, Eva (University of Gothenburg, 1999-01-01)In this report a method for monitoring time series with cycles is presented. It is a nonparametric approach for detecting the turning point of the cycles. Time series of business indicators often exhibit cycles that can ... -
On seasonal filters and monotonicity
Andersson, Eva; Bock, David (University of Gothenburg, 2001-04-01)Seasonal adjustment is important in for example economic time series where the variation can be due to both seasonal and cyclical movements. In a situation where we want to detect a turning point of a cyclical process ... -
Predictions by early indicators of the time and height of yearly influenza outbreaks in Sweden
Andersson, Eva; Kühlmann-Berenzon, Sharon; Linde, Annika; Schiöler, Linus; Rubinova, Sandra; Frisén, Marianne (2007-12-13)Aims: Methods for prediction of the peak of the influenza from early observations are suggested. These predictions can be used for planning purposes. Methods: In this study, new robust methods are described and applied ... -
Semiparametric estimation of outbreak regression
Frisén, Marianne; Andersson, Eva; Pettersson, Kjell (2008-07-02)A regression may be constant for small values of the independent variable (for example time), but then a monotonic increase starts. Such an “outbreak” regression is of interest for example in the study of the outbreak of ... -
Semiparametric surveillance of outbreaks
Frisén, Marianne; Andersson, Eva (2008-07-02)The detection of a change from a constant level to a monotonically increasing (or decreasing) regression is of special interest for the detection of outbreaks of, for example, epidemics. A maximum likelihood ratio statistic ... -
Similarities and differences between statistical surveillance and certain decision rules in finance
Bock, David; Andersson, Eva; Frisén, Marianne (2007-12-13)Financial trading rules have the aim of continuously evaluating available information in order to make timely decisions. This is also the aim of methods for statistical surveillance. Many results are available regarding ... -
Skolsköterskans arbete med överviktiga elever i ett tidigt skede
Andersson, Eva; Andersson, Åsa (2012-06-21)Introduktion: Övervikt hos barn och ungdomar är ett växande problem. På längre sikt leder övervikt till livsstilssjukdomar och försämrad livskvalité. Tidigare forskning visar bland annat att socioekonomisk status och barnets ...