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Results tagged with apache-spark
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user 13891
Apache Spark is an open source cluster computing system that aims to make data analytics fast — both fast to run and fast to write, originally developed in the AMPLab at UC Berkeley.
0
votes
1
answer
977
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SPARK 1.5.1: Convert multi-labeled data into binary vector
I am using SPARK 1.5.1, and I have DataFrame that looks like follow:
labelsCol, featureCol
(Label1, Label2, Label 32), FeatureVector
(Label1, Label10, Label16, Label30, Label48), FeatureVector
...
(L …
- 604
7
votes
2
answers
9k
views
SPARK Mllib: Multiclass logistic regression, how to get the probabilities of all classes rat...
I am using LogisticRegressionWithLBFGS to train a multi-class classifier.
Is there a way to get the probability of all classes (not only the top candidate class) when I test the model on new unseen s …
- 604
7
votes
1
answer
1k
views
SPARK, ML: Naive Bayes classifier often assigns 1 as probability prediction
Hi I am using Spark ML to optimise a Naive Bayes multi-class classifier.
I have about 300 categories and I am classifying text documents. The training set is balanced enough and there is about 300 tr …
- 604