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[expand - 1 more] - RE: Interpreting MLLib's linear regression o/p - Spark - [mail # user]
...Hi,It is a text format in which each line represents a labeled sparse feature vector using the following format:label index1:value1 index2:value2 ...This was the confusing part in the docume...
   Author: Sameer Tilak, 2014-12-23, 00:50
MLLib: Saving and loading a model - Spark - [mail # user]
...Hi All,Resending this:I am using LinearRegressionWithSGD and then I save the model weights and intercept. File that contains weights have this format:1.204550.13560.000456......Intercept is ...
   Author: Sameer Tilak, 2014-12-15, 22:23
MLlib: Libsvm: Loss was due to java.lang.ArrayIndexOutOfBoundsException - Spark - [mail # user]
...Hi All,When I am running LinearRegressionWithSGD, I get the following error. Any help on how to debug this further will be highly appreciated.14/12/10 20:26:02 WARN TaskSetManager: Loss was ...
   Author: Sameer Tilak, 2014-12-10, 20:34
MLLIb: Linear regression:  Loss was due to java.lang.ArrayIndexOutOfBoundsException - Spark - [mail # user]
...Hi All,I was able to run LinearRegressionwithSGD for a largeer dataset (> 2GB sparse). I have now filtered the data and I am running regression on a subset of it  (~ 200 MB). I see t...
   Author: Sameer Tilak, 2014-12-08, 20:55
MLLib: loading saved model - Spark - [mail # user]
...Hi All,I am using LinearRegressionWithSGD and then I save the model weights and intercept. File that contains weights have this format:1.204550.13560.000456......Intercept is 0 since I am us...
   Author: Sameer Tilak, 2014-12-03, 18:13
MLLib: LinearRegressionWithSGD performance - Spark - [mail # user]
...Hi All,I have been using MLLib's linear regression and I have some question regarding the performance. We have a cluster of 10 nodes -- each node has 24 cores and 148GB memory. I am running ...
   Author: Sameer Tilak, 2014-11-21, 19:19
Group operator and variable schema (reformatted email) - Pig - [mail # user]
...Hi All,I have the following question:Snippet of my sample.txt. First column is id, however each row can have variable number of columns. id1 100 200 300 400 500id2 10 20 30id1 800 900 600id3...
   Author: Sameer Tilak, 2014-11-13, 07:21
Group operator and variable shema - Pig - [mail # user]
...Hi All,I have the following question:Snippet of my sample.txt. First column is id, however each row can have variable number of columns. id1 100 200 300 400 500id2 10 20 30id1 800 900 600id3...
   Author: Sameer Tilak, 2014-11-13, 07:18
[expand - 1 more] - RE: Model characterization - Spark - [mail # user]
...Excellent,  many thanks.  Really appreciate your help.Sent via the Samsung GALAXY S®4, an AT&T 4G LTE smartphone-------- Original message --------From: Xiangrui Meng  Date:11/...
   Author: Sameer Tilak, 2014-11-04, 15:54
LinearRegression and model prediction threshold - Spark - [mail # user]
...Hi All,I am using LinearRegression and have a question about the details on model.predict method. Basically it is predicting variable y given an input vector x. However, can someone point me...
   Author: Sameer Tilak, 2014-10-31, 18:19
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB