Assuming the local features can be reconstructed by their neighboring visual words in a vocabulary, reconstruction weights can be solved by quadratic programming. The weights are then used to build contribution functions, resulting in a novel assignment learn more method, called quadratic programming (QP) assignment. We further propose a novel visual word weighting method. The discriminative power of each visual word is analyzed by the sub-similarity function in the bin that corresponds to the visual word. Each sub-similarity function is then treated as a weak classifier. A strong classifier is learned by boosting methods that combine those weak classifiers. The weighting factors

of the visual words are learned accordingly. We evaluate the proposed methods on medical image retrieval tasks. The methods are tested on three well-known data sets, i.e., the ImageCLEFmed data set, the 304 CT Set, and the basal-cell carcinoma image set. Experimental results demonstrate that the proposed QP assignment outperforms the traditional nearest neighbor assignment, the multiple assignment, and the soft assignment, whereas the proposed boosting based SRT1720 solubility dmso weighting strategy outperforms the state-of-the-art weighting methods, such as the term frequency weights and the term frequency-inverse document frequency weights.”
“Objective. To investigate the impact

of medical progress on the diagnostic spectrum and outcome of infants with hydrops fetalis (HF).

Study design. We reviewed the charts of all live-born HF infants (n = 70) over a 16-year period (1993-2009). Data

were compared to two published case series (Wafelman LS, Pollock BH, Kreutzer J, Richards DS, Hutchison AA. Biol Neonate 1999;75:73-81, Gainesville, Florida 1983-1992, n = 62; Simpson JH, McDevitt H, Young D, Cameron AD. Fetal Diagn Ther 2006;21:380-382, Glasgow, RepSox cell line UK 1990-2004, n=30).

Results. Only two cases were immune HF. The proportion of infants with unexplained HF (30%), lymphatic (24%), cardiac (17%), hematologcial (6%) or chromosomal anomalies (6%) did not differ from the published case series. There was also no difference in overall mortality (57% vs. 55% or 67%, respectively). Low gestational age (<34 weeks), low 5-min Apgar scores (<4), and heart failure were independently associated with fatality.

Conclusion. The diagnostic spectrum and mortality of HF has changed little over the last 25 years. In the future, new techniques in mutational analysis will be needed to reduce the high rate of unexplained cases of HF.”
“Objective. Prospective population studies have reported that pulmonary function, measured by forced expiratory volume in one second (FEV1), is an independent predictor for mortality. Besides, several studies found that death from all causes is higher in asthmatics than in non-asthmatics.