首页 \ 问答 \ 计算余弦相似度火花java(Compute cosine similarity spark java)

计算余弦相似度火花java(Compute cosine similarity spark java)

如何计算2 Spark Vector之间的余弦相似度。 我正在使用新的ml包。

Spark 2.1.1

编辑:

Spark提供RowMatrix,它可用于计算相似度,但它接受mllib.vector而不是ml.vector

有没有办法从不同的包转换Vector? 是否有使用ml.vector的实现?


How to compute cosine similarity between 2 Spark Vector. I am using the new ml package.

Spark 2.1.1

EDIT:

Spark provide RowMatrix which can be used to compute similarity but it accepts mllib.vector not an ml.vector.

Is there a way to convert Vectors from the different packages? Is there an implementation that uses ml.vector?


原文:https://stackoverflow.com/questions/44073307
更新时间:2022-10-30 08:10

最满意答案

事实证明,有一个名为$browser的无证角度服务可以实现这一点,并由量角器使用。

waitForAngular = function(el, angular, callback) {
  try {
    angular.element(el).injector().get('$browser').notifyWhenNoOutstandingRequests(callback);
  } catch (e) {
    callback(e);
  }
};

https://www.snip2code.com/Snippet/91565/Wait-until-angularjs-is-done-with-proces


Turns out there is an undocumented angular service called $browser that accomplishes this and is used by protractor.

waitForAngular = function(el, angular, callback) {
  try {
    angular.element(el).injector().get('$browser').notifyWhenNoOutstandingRequests(callback);
  } catch (e) {
    callback(e);
  }
};

https://www.snip2code.com/Snippet/91565/Wait-until-angularjs-is-done-with-proces

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