نتایج جستجو برای: برآورد تراکم هستهای kde
تعداد نتایج: 49133 فیلتر نتایج به سال:
The melting of perennial ice patches globally is uncovering a fragile record of alpine activity, especially hunting and the use of mountain passes. When rescued by systematic fieldwork (glacial archaeology), this evidence opens an unprecedented window on the chronology of high-elevation activity. Recent research in Jotunheimen and surrounding mountain areas of Norway has recovered over 2000 fin...
Wound closure with cultured skin substitutes results in epithelium that is consistently hypopigmented. Hypothetically, addition of human melanocytes to cultured skin grafts may result in normal pigmentation of healed skin. Skin substitutes were composed of human epidermal keratinocytes and melanocytes, dermal fibroblasts, and collagen-glycosaminoglycan substrates, and were incubated for 12 d in...
This paper considers the problem the improvement and application of the KDE Mean Shift tracking algorithm and data analysis in a migration study of MTLn3 cells. The aim is to convert cell migration videos into numeric description of changes in cell behavior. The choice of KDE Mean Shift Tracking is based on its robust and prominent performance in time-lapse studies compared to other algorithms....
Neural networks have been widely used as predictive models to fit data distribution, and they could be implemented through learning a collection of samples. In many applications, however, the given dataset may contain noisy samples or outliers which may result in a poor learner model in terms of generalization. This paper contributes to a development of robust stochastic configuration networks ...
Models inferred from system execution logs can be used to test general system behaviour. In this paper, we infer test models from user bug reports that are written in the natural language. The inferred models can be used to derive new tests which further exercise the buggy features reported by users. Our search-based model inference approach considers three objectives: (1) to reduce the number ...
LIBRARY TRENDS, Vol. 62, No. 1, 2013 (“Community Informatics in China,” edited by Kate Williams), pp. 13–33. © 2013 The Board of Trustees, University of Illinois Abstract In recent years, community informatization initiatives have developed throughout mainland China. The meaning of “community informatization” in China is similar to “community informatics” in the U.S. This paper aims to investig...
BACKGROUND Neuronal morphology and function are highly coupled. In particular, dendritic spine morphology is strongly governed by the incoming neuronal activity. The first step towards understanding the structure-function relationships is to classify spine shapes into the main spine types suggested in the literature. Due to the lack of reliable automated analysis tools, classification is mostly...
GATA-2 deficiency was recently described as common cause of overlapping syndromes of immunodeficiency, lymphedema, familiar myelodysplastic syndrome or acute myeloid leukemia. The aim of our study was to analyze bone marrow and peripheral blood samples of children with myelodysplastic syndrome or aplastic anemia to define prevalence of the GATA2 mutation and to assess whether mutations in GATA-...
We analyze a method for nonparametric density estimation that exhibits robustness to contamination of the training sample. This method achieves robustness by combining a traditional kernel density estimator (KDE) with ideas from classical M -estimation. The KDE based on a Gaussian kernel is interpreted as a sample mean in the associated reproducing kernel Hilbert space (RKHS). This mean is esti...
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