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HDFS Command

HDFS command path (HadoopRoot) |- bin |- sbin There are 2 commands bin/hdfs dfsbin/hadoop fs Basically sam...
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Couchbase spring data

Couchbase and Spring data Couchbase data is basically json data. Different from MySQL and Mongodb, it's a little bit...
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Couchbase java

Couchbase client Couchbase prepares several programming language support. Java is also supported. In this entr...
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Hive Table Join

Hive Table Join Hive table join is little bit different from MySQL. If you write same code, it does not work T...
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Python Activation function

Activation function Activation function is for Neural Network. We will use activation function in output layer. ...
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Python Numpy2 matrix

Create matrix from array of array import numpy as np # 3 x 2 matrix mat1 = np.array(, ]) print(mat1) # # ] Create...
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Python Numpy1 array

Contents Import NumpyCreate 1 dim arrayNumpy array methods Import Numpy import numpy as np After this, you ...
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