Support vector machines (SVM) and kernel methods have been highly successful in many application areas. However, the requirement that the kernel is symmetric positive semidefinite, Mercer’s condition, is not always verified in practice. When it is not, the kernel is called indefinite. Various heuristics and specialized methods have been proposed to address indefinite kernels, from simple tricks...

There is a broad push in the cancer imaging community to eventually replace linear tumor measurements with three-dimensional evaluation of tumor volume. To evaluate the potential accuracy of volume measurement in tumors by CT, a gelatin phantom consisting of 55 polymethylmethacrylate (PMMA) spheres spanning diameters from 1.6 mm to 25.4 mm was fabricated and scanned using thin slice (0.625 mm) ...

A number of 2D and 3D detection methods for lung nodules in chest CT images have already been developed. Although, in general, 3D detection methods produce fewer false positives (FPs), they require a huge amount of processing. Therefore, techniques which can reduce computation time are required. In the present study, we investigate a high-speed 3D method for detecting solitary nodules in chest ...

BACKGROUND The current categorical split of mood disorders in bipolar (BP) disorders and depressive disorders has recently been questioned. The presence of a significant number of manic/hypomanic symptoms in patients with recurrent unipolar depression seems to challenge the traditional dichotomy of unipolar-BP disorder. Two highly unstable personality features, i.e., the cyclothymic temperament...

grain hardness is one of the most important quality characteristics of cultivated bread wheat (triticum aestivum l.) that has main effect on milling yield, particle size, and water absorption of wheat flour. kernel hardness is mainly controlled by ha locus on the short arm of chromosome 5d in bread wheat. in this study, we have employed a multifaceted approach to investigate aspects of grain ha...

The structure of the maize kernels plays a critical role in determining yield and quality, high-throughput, non-destructive microscope phenotypic characteristics acquisition analysis are great importance. In this study, Micro-CT technology was used to obtain images kernels. An automatic CT image pipeline then developed extract 20 traits related three-dimensional kernel, embryo, endosperm, cavit...

The effect of condensed tannins (CT) from heated and unheated cottonseed on the apparent ileal digestibility of amino acids for the growing rat and pig was determined. In Expt 1, twenty-four rats were allocated to four semi-purified diets which contained cottonseed kernel and hulls as the only protein source. Two of the diets contained unheated solvent-extracted cottonseed kernel and hulls, whi...

Alzheimer disease (AD) is a progressive neurodegenerative disorder first affecting memory functions and then gradually affecting all cognitive functions with behavioral impairments. As the number of patients with AD has increased, early diagnosis has received more attention for both social and medical reasons. However, currently, accuracy in the early diagnosis of certain neurodegenerative dise...

PURPOSE To assess the noise characteristics of the new adaptive statistical iterative reconstruction (ASiR-V) in comparison to ASiR. METHODS A water phantom was acquired with common clinical scanning parameters, at five different levels of CTDIvol . Images were reconstructed with different kernels (STD, SOFT, and BONE), different IR levels (40%, 60%, and 100%) and different slice thickness (S...