Artificial intelligent assistant

stratify

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stratify
▪ I. stratify, v.1 (ˈstrætɪfaɪ) [ad. F. stratifier, ad. mod.L. strātificāre, f. strātum: see stratum and -fy.] 1. a. trans. ‘To range in beds or layers’ (J.); spec. in Metallurgy, to range in alternate layers (metals and reagent substances) in a crucible.1661 Lovell Hist. Anim. & Min. 193 Crowfish..... Oxford English Dictionary
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stratify
stratify/ˈstrætɪfaɪ; `strætəˌfaɪ/ v(pt, pp -fied) [Tn usu passive 通常用於被动语态]arrange (sth) in strata or grades, etc 使（某事物）分层或分等级等: stratified rock 成层岩 a highly stratified society, ie having many different levels 有很多阶层的社会. 牛津英汉双解词典
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Stratification (linguistics)
Authors differ on how to characterize (and further stratify) each stratum, but the general scheme is always followed: Context is realized by language wikipedia.org
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Killip class
an acute myocardial infarction (heart attack), taking into account physical examination and the development of heart failure in order to predict and stratify wikipedia.org
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Define the word "stratify"
Stratify means to divide into distinct layers or categories.
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Minimisation (clinical trials)
The traditional method to avoid this problem, known as blocked randomisation, is to stratify patients according to a number of factors (e.g. male and female wikipedia.org
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PGY
It is used to stratify responsibility in most training programs and to determine salary. wikipedia.org
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Perverse sheaves (or D-modules) on vector spaces, constructible with respect to a hyperplane arrangement Let $V$ be a finite dimensional complex vector space and let $\mathcal{A}$ be a finite collection of hyperplanes...
Have a look at this Kapranov's and Schechtman's paper called "Perverse sheaves over real hyperplane arrangements", that you can find on arxiv here : < It may interest you.
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Irofulven
limited efficacy for late stage tumors that were statistically not significant enough to support broader clinical trials, Oncology Venture has decided to stratify wikipedia.org
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Techniques to understand mathematics. What and how? As I wrote in my autobiography: -I'm unable to do mathematics, but I want do it-. I'd like to have any hints about how to improve my understanding of mathematics. ...
An old teacher of mine used to say, **_"There are no shortcuts to learning Mathematics"_** So put simply, if you are like me - ungifted and only equipped with average intelligence - strenuous hard work is the only answer. It's not easy. But I'll promise you this, you will get there.
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Thermal bar
holomictic lakes during the seasonal transition to stratified conditions, due to the shorter amount of time required for shallow areas of the lake to stratify The thermal bar generally forms parallel to shore and moves toward the lake center as deeper areas of the lake stratify. wikipedia.org
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Rectification of Vector fields I am trying to understand how to rectify vector fields on manifolds. Namely if there is a manifold $M$ and a given vector field $X_p$ where for a $p_0$ we have $X(p_0)\neq0$ then there e...
II) In OP's example, it is easiest to stratify/rectify the vector field $V$ in steps: 1.
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数据集样本类别不均衡时，训练测试集应该如何做？
这可以很方便地通过sklearn.train_test_split的stratify参数实现。此参数指定用于分层分割的标签，直接设置为stratify=y即可。 以下面一个示例数据集为例： 我们画出指定stratify和不指定stratify划分后的类别分布： 输出： 可以很明显地看出“分层分割”参数stratify能够保证数据分割的类别分布一致性。 zhihu
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Palace of Geguti
An extensive fieldwork between 1953 and 1956 allowed the specialists to stratify the principal archaeological layers and reconstruct the architectural wikipedia.org
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流行病学研究设计前匹配了混杂因素，是否要在建立模型时引入已匹配的混杂因素？
另外比如cox model，也可以根据mtach set 来 stratify。最后，我觉得队列研究match的是不是更应该match person time。 总之就是只要是match confounder，case control里model的时候必须要考虑进去match factor，要么在model里面分，要么根据match set 来stratify； cohort的话，放进去会提高precision，也没什么问题。 zhihu
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