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New posts in bigdata
How to transform a categorical variable in Spark into a set of columns coded as {0,1}?
Sep 19, 2022
scala
apache-spark
bigdata
apache-spark-mllib
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How do I increase decimal precision in Spark?
Nov 06, 2022
python
scala
apache-spark
spark-dataframe
bigdata
R: Is it possible to parallelize / speed-up the reading in of a 20 million plus row CSV into R?
Oct 16, 2022
r
csv
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Can RethinkDB handle large data sets (TB+) and serve as DB for an OLAP app?
Apr 27, 2018
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Does a flatMap in spark cause a shuffle?
Oct 23, 2022
scala
apache-spark
bigdata
How can I add a column with a value to a new Dataset in Spark Java?
Apr 10, 2022
java
apache-spark
dataset
apache-spark-dataset
bigdata
Skewed tables in Hive
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hadoop
hive
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Is a good idea to store chat messages in a mongodb collection?
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mongodb
database-design
chat
bigdata
fitting a linear mixed model to a very large data set
Oct 26, 2022
r
parallel-processing
bigdata
lme4
mixed-models
How to efficiently store and query a billion rows of sensor data
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sql-server
hadoop
azure-table-storage
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Python Pandas: Convert 2,000,000 DataFrame rows to Binary Matrix (pd.get_dummies()) without memory error?
Aug 11, 2022
python
performance
pandas
numpy
bigdata
How Apache Apex is different from Apache Storm?
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apache-storm
stream-processing
apache-apex
bigdata
Spark is not using all configured memory
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scala
apache-spark
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Finding gaps in huge event streams?
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sql
mongodb
algorithm
postgresql
bigdata
Order by created date In Cassandra
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cassandra
bigdata
database
Spark policy for handling multiple watermarks
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apache-spark
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bigdata
spark-structured-streaming
HBase: how put/get knows which region server to write to?
Sep 15, 2022
hadoop
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hbase
hdfs
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