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3662 Uppsatser om Sequential probability ratio test - Sida 2 av 245
Utvärdering av ett mikroalbuminuritest till hund :
The occurrence of small amounts of albumin in urine, microalbuminuria (MA), is used both in human- and veterinary medicine as an indicator for patients who have developing proteinuria. Proteinuria can be prerenal, renal or postrenal which is important to establish during an investigation. With conventional methods decreased renal function is not detected until 70 % of renal function is lost. The ability to detect and start a treatment earlier might reverse or slow the progression of disease.
The purpose of this study was to investigate the reliability of Heska® E.R.D.-Health Screen?, a test for microalbuminuria in dogs, to detect albuminuria.
En situerad ansats för utvecklingen av en räknande robot
Den situerade ansatsen inom artificiell intelligens har i tidigare experiment visat på stora möjligheter vid utvecklingen av enkla beteenden. Ansatsens framgångar är dock inte lika tydliga när det kommer till utvecklingen av mer komplexa beteenden som i högre grad påminner om de experiment som gjorts inom traditionell artificiell intelligens. I studien utvecklas en agent med ett ?Extended Sequential Cascaded Network? som kontrollarkitektur för att lösa en uppgift som kräver ett ?räkneliknande beteende?. Utvecklingen av nätverket grundas på en situerad syn på kognition, däribland att designern i så liten grad som möjligt skall styra utvecklingen.
Heuristisk detektering av trojaner
The heuristic methods used by the anti-trojan application TrojanHunter have been evaluated. The evaluation shows that the heuristic scan engine of TrojanHunter has a very good detection ratio and that the detection ratio can be even further improved by implementing the suggested improvements, the most important of which is a white list to avoid misidentifying files that are known not to be trojans..
Timeliness cost for agricultural sprayers : weed control in cereal crops
Evaluation of machinery costs is necessary for selecting appropriate farm machinery. Timeliness cost due to untimely operations is an important component of machinery costs. Timeliness costs can be high for crop sprayers, since pesticide application must be carried out within a short time interval. This Master thesis investigated the timeliness cost and the probability of a suitable workday for spraying. Timeliness factors were estimated for four different crops (oats, spring wheat, winter wheat and barley) using historical weed trial data.
Påverkar goodwill kapitalkostnaden?
Does goodwill affect the cost of capital? Goodwill is an asset which is characterized by much uncertainty regarding both what it is and how much it is really worth. Based on economic theory about information risk and principal-agent problems as well as theory regarding the cost of capital we test for the hypothesis that debt and equity investors perceive goodwill as something risky and hence demand compensation for taking on this extra risk. The proxies used for the cost of capital are cost of debt, beta and the EP-ratio. On a general level we find that increasing the level of goodwill seems to result in higher cost of capital as represented by the three proxies.
Är Sambandet Mellan Utdelningsandel och Framtida Vinsttillväxt Positivt
Common wisdom dictates that because payment of dividends decreases funds available for investment, a high payout ratio is to be associated with low earnings growth. This notion has been challenged in recent years by empirical research that has found a positive relationship between payout ratio and future earnings growth, both on the aggregated market level and the company level in different countries. This study investigated the aforementioned relationship on the Swedish market by statistically analyzing future earnings growth as a function of payout ratio on a large sample of publicly listed companies over the period 1980 to 2011. The results are in line with those found in previous research and indicate that companies with high dividend payout ratio tend to experience strong future earnings growth. The results are robust to the presence of mean reversion, the use of an alternative accounting measure of earnings, non-symmetrical earnings growth cycles and alternative practices for dealing with outliers..
Deterministisk Komprimering/Dekomprimering av Testvektorer med Hjälp av en Inbyggd Processor och Faxkodning
Modern semiconductor design methods makes it possible to design increasingly complex system-on-a-chips (SOCs). Testing such SOCs becomes highly expensive due to the rapidly increasing test data volumes with longer test times as a result. Several approaches exist to compress the test stimuli and where hardware is added for decompression. This master?s thesis presents a test data compression method based on a modified facsimile code.
After establishment closure : Individual characteristics that determine re-employment probabilities of displaced workers in Sweden
This paper studies the relationship between individual characteristics of displaced workers and the probability of re-employment. A competing risks hazard model is used, distinguishing between exits from joblessness to self-employment and to paid-employment. All individuals between 25 and 55 years of age, at the time of displacement, that suffered from at least one year of joblessness after being displaced between 1990 and 1998 due to establishment closures that occurred between 1990 and 2001 are included. This allows for the closure procedure to be between one and three years long. Each individual is followed, from the year of displacement until the year of re-employment or at the latest, ten years after displacement.
Marknadsvärde, skulder och lönsamhet : En analys av dess samvariation
How debt affects companies is an issue that has received much attention. The fact that researchers disagree can make it hard for companies to choose a financingpolicy that maximizes the value of the firm and its return on equity. In a world with investors that are seeking to maximize profits the value of the firm can be affected differently by different economic conditions. The intention of this study is to answer these issues with quantitive methods, with focus on year 2010 and 2009, where the value of the firm is defined as P/E and P/B ratio. The outcome showed that liabilities only affected return on equity significant in one of four cases, and liabilites didn?t affect the value of companies significantly in any of these.
Aktuariella antaganden : En studie om svenska koncerners val
Purpose: The purpose of this paper is to investigate whether there is a correlation between the actuarial assumptions, of listed groups in Large Cap on the Nasdaq Stockholm, equity ratio and their pensionplans funding status.Method: The study is based on a quantitative research method, where the analysis of annual reports takes place. The quantitative research method has enabled the paper to perform related analyzes and comparisons of means between groups, for listed companies equity ratio and pension obligation, and the relation to its actuarial assumptions. Correlation measurements are made using a non-parametric method, Spearman's rho, then further tested using one-sided hypotheses t-test.Theory: The backbone of the thesis is presented using two theories, earnings management and the principal-agent theory. These theories are intertwined with the previous researches, which also dealt with the essay topic of earnings management in previous years and in other countries.Empirical: Correlation analyzes between the studied actuarial assumptions and corporate groups solidity and pension financial status is presentedusing tables and charts. These are further analyzed using hypothesis tests and scatterplots.Conclusion: All tests resulted in very weak correlation between the different variables and can there for not be classified as significant.
Informationssökning i tre olika hypertextstrukturer - ett experiment
The aim of this study was to find out if hypertext structure has any relevance for the efficiency of information retrieval. An experiment, in which three variants of hypertext structure were compared, was carried out in the autumn of 1998. Three websites with different structures were constructed for this purpose: a sequential version, a hierarchical version and a webcluster version. 44 subjects, all students at the University of Lund, were randomly divided into three groups. Subjects were requiered to answer a number of questions using one of the three versions.
Undersökning av modulationsscheman för existerande bredbandsteknologier
In this thesis some different modulation schemes for xDSL-techniques are compared. The investigated techniques are ADSL, G.lite, ADSL2, HDSL, SHDSL and VDSL. The modulation methods used are DMT, CAP and different versions of PAM. Several broadband techniques also use Trellis Coded Modulation (TCM) to increase the coding gain of the transmission. For each one of the different modulation methods the signal-to-noise ratio is calculated for generating a bit error rate probability of 10-7.
Wii Sports och Sport : En jämförelse av fysiska och emotionella skillnader och likheter i träningsspel jämfört med riktig träning
AimThe purpose of this study is to compare the level of activity between playing wii Sports Tennis and wii Sports boxing, and the usual sports, and to see how the two variants are perceived.Issues:- How much strain ratio and energy consumption it gives to exercise wii sports compared with the playing of sport for real?- How do the test participants experience the different tests?- How are the two wii sports games against each other in terms of activity and fitness in the school environment?MethodThis is an experimental study in which 10 test participants (5 men and 5 women) have carried out four different physical tests. The tests consisted of either playing an exergame or playing a sport for 25 minutes. Physical activity was measured during the test using a heart rate monitor. All test participants completed all tests in the same order.
Kapitalstruktur i fastighetsbranschen : En studie av svenska noterade fastighetsbolag 2005-2010
Recent studies made by Margaritis and Psillaki,have shown that a lower debt ratio and higher efficiency are correlated in their studies performed oncompanies in New Zeeland. Other researchers have been able to show a connection between other industries than the one used in our studies,among these are Titman and Wessler. These studies have been done with a great selection of companies in different industries and time periods. However most of these researchers have used traditional ratios and variables.This study aims to find and analyze connections between returns and lower debt ratios in real estate companies listed on the Stockholm stock exchange. Instead of the traditional debt-equity ratio we will construct our own taking long term debts and property assets.
Solvenskrav och riskhantering enligt Solvens II : Implementering av de nya riskbaserade solvensreglerna på ett skadeförsäkringsbolag
The insurance industryis challengedby major changesthrough internationalizationand thusgrowingcompetitionwithmore optionsand greater availabilityfor customers.Solvency II, a new regulatoryframework and anew standard forinsurance companies,is therefore implemented in a steptowardsa more competitive Europeaninsurancemarket. Solvency II will result in extensive structural changes for many insurance companies. Newstandards andinternal models must also be implemented by the companies. Solvency IIhasa tightening effect on thesolvency capital requirements forinsurance companies. At the same time it also leads tomajor changesandincreased demandon risk management andinternal control, alongside with demands fordisclosure of informationto the market.