DS.rdd res11: org.apache.spark.rdd.RDD[Person] =...DataFrame与DataSet的互操作 DataFrame转DataSet 创建一个DateFrame scala> val df = spark.read.json("examples/src/main...MyAvg(age) as sqlAge from people").show //创建聚合
With a growing interest in potential treatments for Stargardt disease, it is important to better understand the natural history of the disorder and the optimal ways of quantifying this. We mapped the dense scotoma over time in a group of Stargardt patients and present the findings here. Methods...
from paper:https://arxiv.org/pdf/2004.04906.pdf loss function in DPR Negative的选择非常关键 实际上,在实践中,如何选择负例经常被忽视,但可能对学习高质量编码器具有决定性作用。我们考虑三种不同类型的negatives:(1)随机选择:从语料库中选择任何随机段落;(2)BM25:由BM25返回的top passages,这些段落不包含答案...
dynamics and structure–function relationships of the brain’s complex and dense information processing network; however, this has been hindered by insufficient 3D resolution, inadequate signal-to-noise ratio and prohibitive light burden in optical imaging, whereas electron microscopy is inherently static....
Lipid membranes are key to the nanoscale compartmentalization of biological systems, but fluorescent visualization of them in intact tissues, with nanoscale precision, is challenging to do with high labeling density. Here, we report ultrastructural membr
(aos_client,model_name,model_group_id,description,connecter_id):request_body={"name":model_name,"function_name":"remote","model_group_id":model_group_id,"description":description,"connector_id":connecter_id}response=aos_client.transport.perform_request(method="P...
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Four planes are used prenatally in the analysis of cardiac structure and function prenatally: 4‐chamber, outflow tracts, and three‐vessel and trachea planes [6]. Five planes are used in postnatal cardiac structures: 4‐chamber, 5-chamber, subcoastal, parasternal long- axis, and parasternal ...
We have introduced the floor function to restrict wx + 1/2 ± ℓ/2 to an integer. The 1/2 in the argument is a shift term introduced to ensure the distance between two points changes by one when ℓ is increased by one. One could use the ceiling function instead of the floor ...
(c) Mapping of 10-dB optical bandwidth as a function of the SOA injection current and SA bias. Different harmonic mode-locking regions are marked. The black dot indicates the optimal operation point for the 1-GHz laser operation. AM, amplitude modulation; ML, mode-locking. a –20 –40 b...