نتایج جستجو برای: margin
تعداد نتایج: 34120 فیلتر نتایج به سال:
Perceptron like large margin algorithms are introduced for the experiments with various margin selections. Compared to the previous perceptron reranking algorithms, the new algorithms use full pairwise samples and allow us to search for margins in a larger space. Our experimental results on the data set of (Collins, 2000) show that a perceptron like ordinal regression algorithm with uneven marg...
We make the case that ERP-related profitability improvements first manifest themselves in gross margin. Using regression discontinuity analysis, we compared “SAP Successes” with their matched competitors before and after their SAP implementation periods and found that the gross margin of SAP successes improved significantly but not their operating margin. These results proved robust across two ...
Basal cell carcinoma is a common condition facing the plastic surgeon. When formally excised, a surrounding margin of normal skin is included in an attempt to ensure complete excision. We set out to investigate our excision margins in a prospective study of 100 basal cell carcinomas in 86 patients treated by conventional surgical excision. The edge of each lesion was delineated, an excision mar...
PURPOSE We evaluated the effect of positive superficial and/or deep margin status on local recurrence (LR) in invasive breast cancer treated with breast-conserving surgery (BCS) followed by radiotherapy. MATERIALS AND METHODS In total, 3,403 stage 1 and 2 invasive breast cancer patients treated with BCS followed by radiotherapy from January 2000 to December 2008 were included in this study. T...
BACKGROUND Our aim was to investigate the ways in which surgeons who perform head and neck ablative procedures on a regular basis define margins, how they use frozen sections to evaluate margins, and the effect of chemoradiation on determining tumor margins. METHODS A custom-designed questionnaire was mailed to members of the American Head and Neck Society asking members how they evaluate and...
In this paper, we contribute to the literature on firm-heterogeneity and trade, by looking not only at firm-level determinants of trade participation (i.e. extensive margin) but also differences between firms with different levels intensity intensive margin). Further, compare that are born ‘local’ display scales international exposure ‘global’, i.e. access markets soon after their birth. Using ...
The aim of this paper is to derive a new robust stability margin. Known sufficient conditions for robust stability stated in gap-metric sense contain inherent conservativeness in the formulation of the various steps. In this paper conservativeness in one of the steps is removed, resulting in a new robustness margin. The key issue is that more information of the specific controller is taken into...
In a classification problem, hard margin SVMs tend to minimize the generalization error by maximizing the margin. Regularization is obtained with soft margin SVMs which improve performances by relaxing the constraints on the margin maximization. This article shows that comparable performances can be obtained in the linearly separable case with the Ho–Kashyap learning rule associated to early st...
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