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Source : ORBi : Univ. Liège

Examine the effects of two adjustments to the lz statistic

Riley, Barth et al. (14 juil. 2016)

Conformity to a known distribution and sensitivity to response aberrance are desirable properties of person-fit statistics. This simulation study examined the joint and independent effects of two adjustments to the standardized log-likelihood statistic (lz): (1) correction of the negatively skewed ...

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Source : DANS

Anaerobic biodesulfurization of thiophenes

Marcelis, C.L.M. (2002)

Distillates from crude oil such as diesel and fuel oil may contain significant amounts of dibenzothiophenes and their alkylated derivatives, containing organically bound sulfur. Combustion of those fossil fuels leads to the release of polluting sulfur dioxide into the atmosphere, where it causes ' ...

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Source : HAL

Improved Small Sample Inference for Efficient Method of Moments and Indirect Inference Estimators

Czellar, Veronika et al. (8 avr. 2012)

Mimeo, 2009 The efficient method of moments (EMM) and indirect inference (II) are two widely used simulation-based techniques for estimating structural models that have intractable likelihood functions. The poor performance in finite samples of traditional coefficient and overidentification tests ...

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Source : HAL

Threshold Effects of the Public Capital Productivity : An International Panel Smooth Transition Approach

Colletaz, Gilbert et al. (20 janv. 2006)

Document de recherche du LEO. DR LEO 2006-01 Using a non linear panel data model we examine the threshold effects in the productivity of the public capital stocks for a panel of 21 OECD countries observed over 1965-2001. Using the so-called "augmented production function" approach, we estimate ...

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Source : DANS

Stability control for approximate implicit time-stepping schemes with minimal residual iterations

Botchev, M.A. et al. (1999)

Implicit schemes for the integration of ODEs are popular when stability is more of concern than accuracy, for instance for the computation of a steady state solution. However, in particular for very large systems, the solution of the linear systems involved may be very expensive. When these systems ...

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Source : HAL
Source : HAL

Screening for distant metastases before salvage surgery in patients with recurrent head and neck squamous cell carcinoma: why and how?

Fakhry, N. et al. (2012)

International audience ABSTRACT   To evaluate the role of 18-fluoro-deoxy-d-glucose (FDG)-positron emission tomography (PET) scan for detecting distant metastases in the preoperative assessment of patients with recurrent head and neck squamous cell carcinoma (HNSCC).  Retrospective study. ...

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Source : DANS

Partial Likelihood-Based Scoring Rules for Evaluating Density Forecasts in Tails

Diks, Cees et al. (19 mai 2008)

textabstractWe propose new scoring rules based on partial likelihood for assessing the relative out-of-sample predictive accuracy of competing density forecasts over a specific region of interest, such as the left tail in financial risk management. By construction, existing scoring rules based on ...

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Source : HAL

Efficiency of French privatizations: a dynamic vision

Alexandre, Herve et al. (8 juin 2004)

International audience The French privatizations program is one of the principal programs worldwide regarding the volume of equity issues. A reading of the privatization process through the corporate governance theory resulted in the development of a model allowing to take into account, on the one ...

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Source : DANS

Is the Rehbein procedure obsolete in the treatment of Hirschsprung's disease?

Visser, Reina et al. (1 nov. 2010)

textabstractPurpose: After 25 years of practice and positive results of the Rehbein-procedure (RB) for children with Hirschsprung Disease (HD), we changed to the less invasive transanal endorectal pull through (TERPT). The aim of this study was to compare short- and mid-term complications of these ...

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