Predicting and comparing algorithm performance on graph instances is challenging for multiple reasons. First, there usually no standard set of to benchmark performance. Second, using existing generators results in a restricted spectrum difficulty the resulting graphs are not diverse enough draw sound conclusions. That why recent work proposes new methodology generate by an evolutionary algorith...

In this paper shape adaptive all phase biorthogonal transform (SA-APBT) for coding arbitrarily shaped image segments is proposed. The proposed transform can be used in region-based image compression instead of the shape adaptive discrete cosine transform (SA-DCT). Region-based image coding method is made up of three procedures: image segmentation, contour coding and texture coding. An image is ...

To decide whether a given sequence is “truely” random, or independent and identically distributed, we need to resort to nonparametric tests for randomness. Six tests: the ordinary run test, the sign test, the runs up and down test, the Mann-Kendall test, the Bartels’ rank test and the test based on entropy estimators are introduced in this report and their weaknesses are analyzed. Combining the...

| Sequences of digital video images typically require vast amounts of electronic memory for storage, and occupy much bandwidth during transmission. Widely used image and video compression standards, such as JPEG and MPEG, use the two-dimensional Discrete Cosine Transform (DCT) to achieve near-optimal compression of individual frames. This is done by decomposing the the frames into components of...

OBJECTIVE Poor effort on baseline neuropsychological tests is expected to influence interpretation of post-concussion assessment scores. Our study examined effort in an athletic population to determine if poor effort effects neuropsychological test performance. METHODS High school athletes (N=199) were administered a brief neuropsychological test battery, which included the Dot Counting Test ...

This paper aims at assessing the pragmatic competence of Arab EFL learners tertiary level. The learners’ ability to use speech act apology was assessed through a specially designed discourse completion test that consisted nine items. study aimed answering following questions. (1) What strategies do participants express apology? (2) politeness in realizing this act? (3) pedagogical implications ...