String similarity functions and phonetic algorithms for Spark.
See ceja if you're using PySpark.
Update your build.sbt file to import the libraries.
libraryDependencies += "org.apache.commons" % "commons-text" % "1.1"
// Spark 3
libraryDependencies += "com.github.mrpowers" %% "spark-stringmetric" % "0.4.0"
// Spark 2
libraryDependencies += "com.github.mrpowers" %% "spark-stringmetric" % "0.3.0"
You can find the spark-daria Scala 2.11 versions here and the Scala 2.12 versions here.
cosine_distancefuzzy_scorehammingjaccard_similarityjaro_winkler
How to import the functions.
import com.github.mrpowers.spark.stringmetric.SimilarityFunctions._Here's an example on how to use the jaccard_similarity function.
Suppose we have the following sourceDF:
+-------+-------+
| word1| word2|
+-------+-------+
| night| nacht|
|context|contact|
| null| nacht|
| null| null|
+-------+-------+
Let's run the jaccard_similarity function.
val actualDF = sourceDF.withColumn(
"w1_w2_jaccard",
jaccard_similarity(col("word1"), col("word2"))
)We can run actualDF.show() to view the w1_w2_jaccard column that's been appended to the DataFrame.
+-------+-------+-------------+
| word1| word2|w1_w2_jaccard|
+-------+-------+-------------+
| night| nacht| 0.43|
|context|contact| 0.57|
| null| nacht| null|
| null| null| null|
+-------+-------+-------------+
double_metaphonenysiisrefined_soundex
How to import the functions.
import com.github.mrpowers.spark.stringmetric.PhoneticAlgorithms._Here's an example on how to use the refined_soundex function.
Suppose we have the following sourceDF:
+-----+
|word1|
+-----+
|night|
| cat|
| null|
+-----+
Let's run the refined_soundex function.
val actualDF = sourceDF.withColumn(
"word1_refined_soundex",
refined_soundex(col("word1"))
)We can run actualDF.show() to view the word1_refined_soundex column that's been appended to the DataFrame.
+-----+---------------------+
|word1|word1_refined_soundex|
+-----+---------------------+
|night| N80406|
| cat| C306|
| null| null|
+-----+---------------------+
Here is the latest API documentation.
-
Create GitHub tag
-
Build documentation with
sbt ghpagesPushSite -
Publish JAR
Run sbt to open the SBT console.
Run > ; + publishSigned; sonatypeBundleRelease to create the JAR files and release them to Maven. These commands are made available by the sbt-sonatype plugin.
After running the release command, you'll be prompted to enter your GPG passphrase.
The Sonatype credentials should be stored in the ~/.sbt/sonatype_credentials file in this format:
realm=Sonatype Nexus Repository Manager
host=oss.sonatype.org
user=$USERNAME
password=$PASSWORD
- Create a GitHub release/tag
- Publish the updated documentation
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