├── .gitignore ├── .project ├── LICENSE ├── README.md ├── build.sbt ├── project ├── plugins.sbt ├── project │ └── target │ │ └── config-classes │ │ ├── $b3d102560a63b15ab385.cache │ │ └── $bc6d6b0c9d8db494e759.cache └── target │ ├── config-classes │ ├── $06ba21d58b2b689ca77f.cache │ ├── $0f13e50b2717a7c7d5d3.cache │ ├── $1ad477331c05baea072a.cache │ ├── $1b51683a36d7ea63985c.cache │ ├── $2da92b15db480aede577.cache │ ├── $3336d4fd058011bcd6d0.cache │ ├── $8171d171761c9aab4896.cache │ ├── $82a7ccabc69b86382cc6.cache │ ├── $8b48e77a94c99a225a63.cache │ ├── $9dddc03dcd2da481bec2.cache │ ├── $a78697fc1714f8c8f33b.cache │ ├── $ae4d651a65c05a1b1fca.cache │ ├── $b9e8fc9ef9d16d4e7d4b.cache │ ├── $ca20669757765057b05f.cache │ ├── $db28efac0bdc63c5a993.cache │ ├── $e084bbb9b3c78e4f0508.cache │ └── $f693f8f2fa5a7035bdda.cache │ ├── resolution-cache │ ├── default │ │ ├── spark-beetweenness-build │ │ │ └── scala_2.10 │ │ │ │ └── sbt_0.13 │ │ │ │ └── 0.1-SNAPSHOT │ │ │ │ ├── resolved.xml.properties │ │ │ │ └── resolved.xml.xml │ │ └── spark-betweenness-build │ │ │ └── scala_2.10 │ │ │ └── sbt_0.13 │ │ │ └── 0.1-SNAPSHOT │ │ │ ├── resolved.xml.properties │ │ │ └── resolved.xml.xml │ └── reports │ │ ├── default-spark-beetweenness-build-compile-internal.xml │ │ ├── default-spark-beetweenness-build-compile.xml │ │ ├── default-spark-beetweenness-build-docs.xml │ │ ├── default-spark-beetweenness-build-optional.xml │ │ ├── default-spark-beetweenness-build-plugin.xml │ │ ├── default-spark-beetweenness-build-pom.xml │ │ ├── default-spark-beetweenness-build-provided.xml │ │ ├── default-spark-beetweenness-build-runtime-internal.xml │ │ ├── default-spark-beetweenness-build-runtime.xml │ │ ├── default-spark-beetweenness-build-scala-tool.xml │ │ ├── default-spark-beetweenness-build-sources.xml │ │ ├── default-spark-beetweenness-build-test-internal.xml │ │ ├── default-spark-beetweenness-build-test.xml │ │ ├── default-spark-betweenness-build-compile-internal.xml │ │ ├── default-spark-betweenness-build-compile.xml │ │ ├── default-spark-betweenness-build-docs.xml │ │ ├── default-spark-betweenness-build-optional.xml │ │ ├── default-spark-betweenness-build-plugin.xml │ │ ├── default-spark-betweenness-build-pom.xml │ │ ├── default-spark-betweenness-build-provided.xml │ │ ├── default-spark-betweenness-build-runtime-internal.xml │ │ ├── default-spark-betweenness-build-runtime.xml │ │ ├── default-spark-betweenness-build-scala-tool.xml │ │ ├── default-spark-betweenness-build-sources.xml │ │ ├── default-spark-betweenness-build-test-internal.xml │ │ ├── default-spark-betweenness-build-test.xml │ │ ├── ivy-report.css │ │ └── ivy-report.xsl │ └── streams │ ├── $global │ ├── $global │ │ └── $global │ │ │ └── streams │ │ │ └── out │ ├── dependencyPositions │ │ └── $global │ │ │ └── streams │ │ │ └── update_cache_2.10 │ │ │ ├── input_dsp │ │ │ └── output_dsp │ ├── ivyConfiguration │ │ └── $global │ │ │ └── streams │ │ │ └── out │ ├── ivySbt │ │ └── $global │ │ │ └── streams │ │ │ └── out │ ├── projectDescriptors │ │ └── $global │ │ │ └── streams │ │ │ └── out │ └── update │ │ └── $global │ │ └── streams │ │ ├── out │ │ └── update_cache_2.10 │ │ ├── inputs │ │ └── output │ ├── compile │ ├── $global │ │ └── $global │ │ │ └── discoveredMainClasses │ │ │ └── data │ ├── compile │ │ └── $global │ │ │ └── streams │ │ │ └── out │ ├── compileIncremental │ │ └── $global │ │ │ └── streams │ │ │ ├── export │ │ │ └── out │ ├── copyResources │ │ └── $global │ │ │ └── streams │ │ │ ├── copy-resources │ │ │ └── out │ ├── dependencyClasspath │ │ └── $global │ │ │ └── streams │ │ │ └── export │ ├── exportedProducts │ │ └── $global │ │ │ └── streams │ │ │ └── export │ ├── externalDependencyClasspath │ │ └── $global │ │ │ └── streams │ │ │ └── export │ ├── internalDependencyClasspath │ │ └── $global │ │ │ └── streams │ │ │ └── export │ ├── managedClasspath │ │ └── $global │ │ │ └── streams │ │ │ └── export │ ├── unmanagedClasspath │ │ └── $global │ │ │ └── streams │ │ │ └── export │ └── unmanagedJars │ │ └── $global │ │ └── streams │ │ └── export │ └── runtime │ ├── dependencyClasspath │ └── $global │ │ └── streams │ │ └── export │ ├── exportedProducts │ └── $global │ │ └── streams │ │ └── export │ ├── externalDependencyClasspath │ └── $global │ │ └── streams │ │ └── export │ ├── fullClasspath │ └── $global │ │ └── streams │ │ └── export │ ├── internalDependencyClasspath │ └── $global │ │ └── streams │ │ └── export │ ├── managedClasspath │ └── $global │ │ └── streams │ │ └── export │ ├── unmanagedClasspath │ └── $global │ │ └── streams │ │ └── export │ └── unmanagedJars │ └── $global │ └── streams │ └── export ├── python └── kBC.py └── src ├── functional-test └── scala │ └── com │ └── centrality │ └── kBC │ └── LocalRunner.scala ├── main └── scala │ └── com │ └── centrality │ └── kBC │ ├── KBetweenness.scala │ └── kBCDriver.scala └── test └── scala └── com └── centrality └── kBC └── KBetweennessTest.scala /.gitignore: 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # spark-betweenness 2 | 3 | k Betweenness Centrality (kBC) algorithm for Spark using GraphX 4 | 5 | ## Details 6 | 7 | Computing k Betweenness Centrality (kBC) on arbitraty graphs using GraphX. 8 | 9 | ### Steps 10 | 11 | 1. Using Pregel API to create small k-graphlets 12 | 2. Local betweenness contribution calculation for each vertex to other vertices using Brandes algorithm for calculating BC. 13 | 3. Aggregating results (reduce) from all vertices to conclude each vertex betweenness score. 14 | 4. Assemble a graph similar to the original graph that contains the kBC score for each node. 15 | 16 | ### Notes 17 | 18 | The method above illustrated that spark-betweenness works best for graphs with a large diameter. 19 | We actually hold all k-graphlets in memory for Brandes calculation as they are the core of parallelizing this algorithm. 20 | Therefore, we manage to compute kBC on millions of nodes and vertices with large diameter graphs (such as road networks), but fail miserabely to do so on small diameter graphs (such as social networks). 21 | 22 | ## Requirements 23 | 24 | Spark 1.5+. 25 | 26 | Scala 2.10. 27 | 28 | ## Linking 29 | 30 | You can link against this library (for Spark 1.5+) in your program at the following coordinates: 31 | 32 | Using SBT: 33 | 34 | ``` 35 | libraryDependencies += "com.centrality" %% "spark-betweenness" % "1.0.0" 36 | ``` 37 | 38 | This library can also be added to Spark jobs launched through `spark-shell` or `spark-submit` by using the `--packages` command line option. 39 | For example, to include it when starting the spark shell: 40 | 41 | ``` 42 | $ bin/spark-shell --packages com.centrality:spark-betweenness_2.10:1.0.0 43 | ``` 44 | 45 | Unlike using `--jars`, using `--packages` ensures that this library and its dependencies will be added to the classpath. 46 | The `--packages` argument can also be used with `bin/spark-submit`. 47 | 48 | This library is cross-published for Scala 2.10, so 2.11 users should replace 2.10 with 2.11 in the commands listed above. 49 | 50 | ## Usage 51 | 52 | ### Scala API 53 | 54 | ```scala 55 | // import needed for the .avro method to be added 56 | import com.centrality.kBC.KBetweenness 57 | 58 | val graph = Graph(users, relationships, defaultUser) 59 | 60 | // Run kBC to get result graph 61 | val kBCGraph = 62 | KBetweenness.run(graph, k) 63 | ``` 64 | 65 | ### Running kBC from command line 66 | 67 | You can run kBC directly form command line using spark-submit. 68 | 69 | Parameters for kBC : 70 | - **k** size of k-graphlets for kBC 71 | - **numEdgePartitions** number of partitions when loading graph, recommended ( **num-executors** * 2 ) - 6 72 | - **inputDir** HDFS input dir location 73 | - **outputDir** HDFS output dir location 74 | - **inputFileName** input file name containing edge_list for graph (as stated in GraphX GraphLoader.edgeListFile) 75 | 76 | ```bash 77 | /usr/lib/spark/bin/spark-submit --class com.centrality.kBC.kBCDriver --executor-cores 1 --executor-memory 10000M --master yarn-cluster --num-executors 28 --conf spark.driver.memory=10000m --conf spark.driver.extraJavaOptions="-Xms4000m -Xmx10000m" --conf spark.executor.extraJavaOptions="-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps" --conf spark.kryo.registrationRequired=false --conf spark.serializer=org.apache.spark.serializer.KryoSerializer --conf spark.yarn.maxAppAttempts=1 --conf spark.task.maxFailures=10 /tmp/kbc_2.10-1.0.jar 4 50 /tmp/input/ /tmp/output/ loc-brightkite_edges.txt 78 | ``` 79 | 80 | When using kBC this way, it is highly recommended to tune these parameters for your own benefit : 81 | 82 | - **executor-cores** recommended to 1 83 | - **executor-memory** 84 | - **num-executors** as far as memory of the cluster grants, given each executor needs X **executor-memory** 85 | - **spark.driver.extraJavaOptions** tune memory requirements 86 | - **spark.executor.extraJavaOptions** tune GC if needed 87 | - **spark.task.maxFailures** recommended larger than 1, tasks fail for out of memory sometimes for large graphs if tuning isn't right 88 | 89 | ## Building From Source 90 | This library is built with [SBT](http://www.scala-sbt.org/0.13/docs/Command-Line-Reference.html), 91 | which is automatically downloaded by the included shell script. To build a JAR file simply run 92 | `sbt package` from the project root. 93 | 94 | ## More Information 95 | See the research report that led to this project with more details and comparisons to other frameworks [here](http://www.slideshare.net/DanielMarcous/distributed-kbetweenness-spark) 96 | 97 | ##Credits 98 | 99 | Written and maintained by : 100 | 101 | Daniel Marcous 102 | 103 | Yotam Sandbank 104 | 105 | 106 | -------------------------------------------------------------------------------- /build.sbt: -------------------------------------------------------------------------------- 1 | name := "spark-betweenness" 2 | 3 | organization := "com.centrality" 4 | 5 | version := "1.0" 6 | 7 | scalaVersion := "2.10.4" 8 | 9 | crossScalaVersions := Seq("2.10.5", "2.11.7") 10 | 11 | libraryDependencies += "org.scalatest" % "scalatest_2.10" % "2.2.4" % "test" 12 | 13 | spName := "dmarcous/spark-betweenness" 14 | 15 | sparkVersion := "1.5.2" 16 | 17 | sparkComponents += "graphx" 18 | 19 | spAppendScalaVersion := true 20 | 21 | EclipseKeys.eclipseOutput := Some("target/eclipse") 22 | 23 | /******************** 24 | * Release settings * 25 | ********************/ 26 | 27 | credentials += Credentials(Path.userHome / ".sbtcredentials") 28 | 29 | spShortDescription := "k Betweenness Centrality algorithm for Spark using GraphX" 30 | 31 | spDescription := """Computing k Betweenness Centrality (kBC) on arbitrary graphs using GraphX. 32 | |Uses Pregel API for k-graphlet generation and Brandes algorithm for kBC score contribution for each vertex in parallel. 33 | |Works best for graphs with small diameter.""".stripMargin 34 | 35 | spHomepage := "https://github.com/dmarcous/spark-betweenness" 36 | 37 | licenses += ("Apache-2.0", url("http://www.apache.org/licenses/LICENSE-2.0")) 38 | 39 | pomExtra := 40 | https://github.com/dmarcous/spark-betweenness 41 | 42 | git@github.com:dmarcous/spark-betweenness.git 43 | scm:git:git@github.com:dmarcous/spark-betweenness.git 44 | 45 | 46 | 47 | dmarcous 48 | Daniel Marcous 49 | https://github.com/dmarcous 50 | 51 | 52 | yotamsandbank 53 | Yotam Sandbank 54 | https://github.com/yotamsandbank 55 | 56 | 57 | -------------------------------------------------------------------------------- /project/plugins.sbt: -------------------------------------------------------------------------------- 1 | resolvers += "bintray-spark-packages" at "https://dl.bintray.com/spark-packages/maven/" 2 | 3 | addSbtPlugin("org.spark-packages" % "sbt-spark-package" % "0.2.3") 4 | -------------------------------------------------------------------------------- /project/project/target/config-classes/$b3d102560a63b15ab385.cache: -------------------------------------------------------------------------------- 1 | sbt.internals.DslEntry -------------------------------------------------------------------------------- /project/project/target/config-classes/$bc6d6b0c9d8db494e759.cache: 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| 14 | 15 | 16 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-beetweenness-build-optional.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 13 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-beetweenness-build-plugin.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 13 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-beetweenness-build-pom.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 13 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-beetweenness-build-runtime.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-beetweenness-build-scala-tool.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-beetweenness-build-sources.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 13 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-beetweenness-build-test.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-betweenness-build-compile.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-betweenness-build-docs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 13 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /project/target/resolution-cache/reports/default-spark-betweenness-build-optional.xml: 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You may obtain a copy of the License at 8 | * 9 | * http://www.apache.org/licenses/LICENSE-2.0 10 | * 11 | * Unless required by applicable law or agreed to in writing, software 12 | * distributed under the License is distributed on an "AS IS" BASIS, 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 | * See the License for the specific language governing permissions and 15 | * limitations under the License. 16 | * 17 | */ 18 | 19 | body { 20 | font-family:"Trebuchet MS",Verdana,Geneva,Arial,Helvetica,sans-serif; 21 | font-size:small; 22 | } 23 | 24 | div#logo { 25 | float: right; 26 | padding-left: 10px; 27 | padding-bottom: 10px; 28 | background: white; 29 | text-align: center; 30 | } 31 | 32 | #logo img { 33 | border: 0; 34 | } 35 | 36 | div#date { 37 | font-style: italic; 38 | padding-left: 60px; 39 | padding-bottom: 40px; 40 | } 41 | 42 | 43 | h1 { 44 | margin-bottom:2px; 45 | 46 | border-color:#7A9437; 47 | border-style:solid; 48 | border-width:0 0 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/Users/dmarcous/.sbt/0.13/plugins/target/scala-2.10/sbt-0.13/classes:/Users/dmarcous/.ivy2/cache/scala_2.10/sbt_0.13/com.typesafe.sbteclipse/sbteclipse-plugin/jars/sbteclipse-plugin-4.0.0.jar:/Users/dmarcous/.ivy2/cache/org.scalaz/scalaz-core_2.10/bundles/scalaz-core_2.10-7.1.0.jar:/Users/dmarcous/.sbt/boot/scala-2.10.5/lib/scala-library.jar:/Users/dmarcous/.ivy2/cache/org.scalaz/scalaz-effect_2.10/bundles/scalaz-effect_2.10-7.1.0.jar:/Users/dmarcous/.ivy2/cache/scala_2.10/sbt_0.13/org.spark-packages/sbt-spark-package/jars/sbt-spark-package-0.2.3.jar:/Users/dmarcous/.ivy2/cache/scala_2.10/sbt_0.13/com.eed3si9n/sbt-assembly/jars/sbt-assembly-0.12.0.jar:/Users/dmarcous/.ivy2/cache/org.scalaj/scalaj-http_2.10/jars/scalaj-http_2.10-1.1.4.jar:/Users/dmarcous/.ivy2/cache/org.apache.directory.studio/org.apache.commons.codec/jars/org.apache.commons.codec-1.8.jar:/Users/dmarcous/.ivy2/cache/commons-codec/commons-codec/jars/commons-codec-1.8.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/sbt/jars/sbt-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/main/jars/main-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/actions/jars/actions-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/classpath/jars/classpath-0.13.9.jar:/Users/dmarcous/.sbt/boot/scala-2.10.5/lib/scala-compiler.jar:/Users/dmarcous/.sbt/boot/scala-2.10.5/lib/scala-reflect.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/interface/jars/interface-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/io/jars/io-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/control/jars/control-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/launcher-interface/jars/launcher-interface-1.0.0-M1.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/completion/jars/completion-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/collections/jars/collections-0.13.9.jar:/Users/dmarcous/.ivy2/cache/jline/jline/jars/jline-2.11.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/api/jars/api-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compiler-integration/jars/compiler-integration-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/incremental-compiler/jars/incremental-compiler-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/logging/jars/logging-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/process/jars/process-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/relation/jars/relation-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compile/jars/compile-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/classfile/jars/classfile-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/persist/jars/persist-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-tools.sbinary/sbinary_2.10/jars/sbinary_2.10-0.4.2.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compiler-ivy-integration/jars/compiler-ivy-integration-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/ivy/jars/ivy-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/cross/jars/cross-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt.ivy/ivy/jars/ivy-2.3.0-sbt-c5d1b95fdcc1e1007740ffbecf4eb07abc51ec93.jar:/Users/dmarcous/.ivy2/cache/com.jcraft/jsch/jars/jsch-0.1.46.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/serialization_2.10/jars/serialization_2.10-0.1.1.jar:/Users/dmarcous/.ivy2/cache/org.scala-lang.modules/scala-pickling_2.10/jars/scala-pickling_2.10-0.10.0.jar:/Users/dmarcous/.ivy2/cache/org.scalamacros/quasiquotes_2.10/jars/quasiquotes_2.10-2.0.1.jar:/Users/dmarcous/.ivy2/cache/org.json4s/json4s-core_2.10/jars/json4s-core_2.10-3.2.10.jar:/Users/dmarcous/.ivy2/cache/org.json4s/json4s-ast_2.10/jars/json4s-ast_2.10-3.2.10.jar:/Users/dmarcous/.ivy2/cache/com.thoughtworks.paranamer/paranamer/jars/paranamer-2.6.jar:/Users/dmarcous/.ivy2/cache/org.spire-math/jawn-parser_2.10/jars/jawn-parser_2.10-0.6.0.jar:/Users/dmarcous/.ivy2/cache/org.spire-math/json4s-support_2.10/jars/json4s-support_2.10-0.6.0.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/run/jars/run-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/task-system/jars/task-system-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/tasks/jars/tasks-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/tracking/jars/tracking-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/cache/jars/cache-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/testing/jars/testing-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/test-agent/jars/test-agent-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/test-interface/jars/test-interface-1.0.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/main-settings/jars/main-settings-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/apply-macro/jars/apply-macro-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/command/jars/command-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/logic/jars/logic-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compiler-interface/jars/compiler-interface-src-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compiler-interface/jars/compiler-interface-bin-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/precompiled-2_8_2/jars/compiler-interface-bin-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/precompiled-2_9_2/jars/compiler-interface-bin-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/precompiled-2_9_3/jars/compiler-interface-bin-0.13.9.jar 2 | -------------------------------------------------------------------------------- /project/target/streams/compile/exportedProducts/$global/streams/export: -------------------------------------------------------------------------------- 1 | /Users/dmarcous/gDrive/git/spark-betweenness/project/target/scala-2.10/sbt-0.13/classes 2 | -------------------------------------------------------------------------------- /project/target/streams/compile/externalDependencyClasspath/$global/streams/export: -------------------------------------------------------------------------------- 1 | /Users/dmarcous/.ivy2/cache/scala_2.10/sbt_0.13/com.typesafe.sbteclipse/sbteclipse-plugin/jars/sbteclipse-plugin-4.0.0.jar:/Users/dmarcous/.ivy2/cache/org.scalaz/scalaz-core_2.10/bundles/scalaz-core_2.10-7.1.0.jar:/Users/dmarcous/.sbt/boot/scala-2.10.5/lib/scala-library.jar:/Users/dmarcous/.ivy2/cache/org.scalaz/scalaz-effect_2.10/bundles/scalaz-effect_2.10-7.1.0.jar:/Users/dmarcous/.ivy2/cache/scala_2.10/sbt_0.13/org.spark-packages/sbt-spark-package/jars/sbt-spark-package-0.2.3.jar:/Users/dmarcous/.ivy2/cache/scala_2.10/sbt_0.13/com.eed3si9n/sbt-assembly/jars/sbt-assembly-0.12.0.jar:/Users/dmarcous/.ivy2/cache/org.scalaj/scalaj-http_2.10/jars/scalaj-http_2.10-1.1.4.jar:/Users/dmarcous/.ivy2/cache/org.apache.directory.studio/org.apache.commons.codec/jars/org.apache.commons.codec-1.8.jar:/Users/dmarcous/.ivy2/cache/commons-codec/commons-codec/jars/commons-codec-1.8.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/sbt/jars/sbt-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/main/jars/main-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/actions/jars/actions-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/classpath/jars/classpath-0.13.9.jar:/Users/dmarcous/.sbt/boot/scala-2.10.5/lib/scala-compiler.jar:/Users/dmarcous/.sbt/boot/scala-2.10.5/lib/scala-reflect.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/interface/jars/interface-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/io/jars/io-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/control/jars/control-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/launcher-interface/jars/launcher-interface-1.0.0-M1.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/completion/jars/completion-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/collections/jars/collections-0.13.9.jar:/Users/dmarcous/.ivy2/cache/jline/jline/jars/jline-2.11.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/api/jars/api-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compiler-integration/jars/compiler-integration-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/incremental-compiler/jars/incremental-compiler-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/logging/jars/logging-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/process/jars/process-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/relation/jars/relation-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compile/jars/compile-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/classfile/jars/classfile-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/persist/jars/persist-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-tools.sbinary/sbinary_2.10/jars/sbinary_2.10-0.4.2.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compiler-ivy-integration/jars/compiler-ivy-integration-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/ivy/jars/ivy-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/cross/jars/cross-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt.ivy/ivy/jars/ivy-2.3.0-sbt-c5d1b95fdcc1e1007740ffbecf4eb07abc51ec93.jar:/Users/dmarcous/.ivy2/cache/com.jcraft/jsch/jars/jsch-0.1.46.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/serialization_2.10/jars/serialization_2.10-0.1.1.jar:/Users/dmarcous/.ivy2/cache/org.scala-lang.modules/scala-pickling_2.10/jars/scala-pickling_2.10-0.10.0.jar:/Users/dmarcous/.ivy2/cache/org.scalamacros/quasiquotes_2.10/jars/quasiquotes_2.10-2.0.1.jar:/Users/dmarcous/.ivy2/cache/org.json4s/json4s-core_2.10/jars/json4s-core_2.10-3.2.10.jar:/Users/dmarcous/.ivy2/cache/org.json4s/json4s-ast_2.10/jars/json4s-ast_2.10-3.2.10.jar:/Users/dmarcous/.ivy2/cache/com.thoughtworks.paranamer/paranamer/jars/paranamer-2.6.jar:/Users/dmarcous/.ivy2/cache/org.spire-math/jawn-parser_2.10/jars/jawn-parser_2.10-0.6.0.jar:/Users/dmarcous/.ivy2/cache/org.spire-math/json4s-support_2.10/jars/json4s-support_2.10-0.6.0.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/run/jars/run-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/task-system/jars/task-system-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/tasks/jars/tasks-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/tracking/jars/tracking-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/cache/jars/cache-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/testing/jars/testing-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/test-agent/jars/test-agent-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/test-interface/jars/test-interface-1.0.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/main-settings/jars/main-settings-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/apply-macro/jars/apply-macro-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/command/jars/command-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/logic/jars/logic-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compiler-interface/jars/compiler-interface-src-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/compiler-interface/jars/compiler-interface-bin-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/precompiled-2_8_2/jars/compiler-interface-bin-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/precompiled-2_9_2/jars/compiler-interface-bin-0.13.9.jar:/Users/dmarcous/.ivy2/cache/org.scala-sbt/precompiled-2_9_3/jars/compiler-interface-bin-0.13.9.jar 2 | -------------------------------------------------------------------------------- /project/target/streams/compile/internalDependencyClasspath/$global/streams/export: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /project/target/streams/compile/managedClasspath/$global/streams/export: -------------------------------------------------------------------------------- 1 | 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/project/target/streams/runtime/unmanagedClasspath/$global/streams/export: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /project/target/streams/runtime/unmanagedJars/$global/streams/export: -------------------------------------------------------------------------------- 1 | 2 | -------------------------------------------------------------------------------- /python/kBC.py: -------------------------------------------------------------------------------- 1 | import networkx as nx 2 | from collections import deque 3 | import time 4 | import sys 5 | import os 6 | 7 | print('Usage: python kBC.py filename k') 8 | args = sys.argv 9 | os.chdir(sys.path[0]) 10 | sg = nx.read_edgelist(args[1], nodetype=int)#, create_using = nx.DiGraph()) 11 | k = int(args[2]) 12 | 13 | inf = float('inf') 14 | start = time.clock() 15 | 16 | 17 | # Betweenness centrality 18 | kBC = dict({key:0 for key in sg.nodes()}) 19 | for s in sg.nodes(): 20 | #Structures 21 | Q = deque() #Queue 22 | S = deque() #Stack 23 | dist = dict({key:inf for key in sg.nodes()}) 24 | sig = dict({key:float(0) for key in sg.nodes()}) 25 | pred = dict({key:[] for key in sg.nodes()}) 26 | 27 | #Initialize 28 | Q.append(s) 29 | dist[s] = 0 30 | sig[s] = 1 31 | 32 | #BFS - top-down 33 | while len(Q) > 0: 34 | v = Q.popleft() 35 | if dist[v] > k: 36 | break; 37 | S.append(v) 38 | for w in sg[v]: 39 | if dist[w] == inf: 40 | dist[w] = dist[v] + 1 41 | if dist[w] <= k: 42 | Q.append(w) 43 | if dist[w] == dist[v] + 1: 44 | sig[w] += sig[v] 45 | pred[w].append(v) 46 | #Aggregate - bottom-up 47 | delta = dict({key:float(0) for key in sg.nodes()}) 48 | while len(S) > 0: 49 | v = S.pop() 50 | for w in pred[v]: 51 | delta[w] += (delta[v]+1) * sig[w] / sig[v] 52 | if v!=s: 53 | if(sg.is_directed()): 54 | kBC[v] += delta[v] 55 | else: kBC[v] += delta[v] / 2.0 56 | end = time.clock() 57 | print('My time: ' + str(end - start)) 58 | 59 | -------------------------------------------------------------------------------- /src/functional-test/scala/com/centrality/kBC/LocalRunner.scala: -------------------------------------------------------------------------------- 1 | package com.centrality.kBC 2 | 3 | import org.apache.spark.SparkConf 4 | import org.apache.spark.SparkContext 5 | import org.apache.spark.graphx.Edge 6 | import org.apache.spark.graphx.Graph 7 | import org.apache.spark.graphx.VertexId 8 | import org.apache.spark.rdd.RDD 9 | 10 | object MainRunner 11 | { 12 | def main(args: Array[String]) 13 | { 14 | // Create spark context 15 | val appName="kBC" 16 | val sparkMode="local" 17 | val conf = new SparkConf().setAppName(appName).setMaster(sparkMode); 18 | val sc = new SparkContext(conf); 19 | 20 | // Create sample graph 21 | // 22 | // Create an RDD for vertices 23 | val users: RDD[(VertexId, (String, String))] = 24 | sc.parallelize(Array((3L, ("rxin", "student")), (7L, ("jgonzal", "postdoc")), 25 | (5L, ("franklin", "prof")), (2L, ("istoica", "prof")))) 26 | // Create an RDD for edges 27 | val relationships: RDD[Edge[String]] = 28 | sc.parallelize(Array(Edge(3L, 7L, "collab"), Edge(5L, 3L, "advisor"), 29 | Edge(2L, 5L, "colleague"), Edge(5L, 7L, "pi"))) 30 | // Define a default user in case there are relationship with missing user 31 | val defaultUser = ("John Doe", "Missing") 32 | // Build the initial Graph 33 | val graph = Graph(users, relationships, defaultUser) 34 | 35 | val kBCGraph = 36 | KBetweenness.run(graph, 3) 37 | } 38 | } -------------------------------------------------------------------------------- /src/main/scala/com/centrality/kBC/KBetweenness.scala: -------------------------------------------------------------------------------- 1 | package com.centrality.kBC 2 | 3 | import scala.reflect.ClassTag 4 | import org.apache.spark.Logging 5 | import org.apache.spark.rdd.PairRDDFunctions 6 | import org.apache.spark.graphx.VertexId 7 | import org.apache.spark.graphx.Edge 8 | import org.apache.spark.graphx.Graph 9 | import org.apache.spark.graphx.VertexRDD 10 | import org.apache.spark.graphx.EdgeTriplet 11 | import org.apache.spark.graphx.Pregel 12 | import org.apache.spark.graphx.EdgeDirection 13 | import scala.collection.mutable.Stack 14 | import scala.collection.mutable.Queue 15 | import scala.collection.mutable.HashMap 16 | import scala.collection.mutable.ListBuffer 17 | 18 | object KBetweenness 19 | { 20 | def run[VD: ClassTag, ED: ClassTag]( 21 | graph: Graph[VD, ED], k: Int): Graph[Double, Double] = 22 | { 23 | val kGraphletsGraph = 24 | createKGraphlets(graph, k) 25 | 26 | val vertexKBcGraph = 27 | kGraphletsGraph 28 | .mapVertices((id, attr) => (id, computeVertexBetweenessCentrality(id, attr._2, attr._3))) 29 | 30 | val kBCGraph: Graph[Double, Double] = 31 | aggregateGraphletsBetweennessScores(vertexKBcGraph) 32 | 33 | kBCGraph 34 | } 35 | 36 | def createKGraphlets[VD: ClassTag, ED: ClassTag](graph: Graph[VD, ED], k: Int): Graph[(Double, List[VertexId], List[(VertexId, VertexId)]), Double] = 37 | { 38 | val graphContainingGraphlets : Graph[(Double, List[VertexId], List[(VertexId, VertexId)]), Double] = 39 | graph 40 | // Init edges to hold - Edge Betweenness to 0.0 41 | .mapTriplets[Double]({x: EdgeTriplet[VD, ED] => (0.0) }) 42 | // Init vertices to hold - Vertex betweenness (0.0), and K distance Edge list (empty) 43 | .mapVertices( (id, attr) => (0.0, List[VertexId](id), List[(VertexId, VertexId)]())) 44 | //.reverse // Because GraphX is directed and we want graphlets containing all vertices a vertex might effect 45 | .cache() 46 | 47 | def vertexProgram(id: VertexId, attr: (Double, List[VertexId], List[(VertexId, VertexId)]), msgSum: (List[VertexId], List[(VertexId, VertexId)])): (Double, List[VertexId], List[(VertexId, VertexId)]) = 48 | (attr._1, attr._2.union(msgSum._1).distinct, attr._3.union(msgSum._2).distinct) 49 | def sendMessage(edge: EdgeTriplet[(Double, List[VertexId], List[(VertexId, VertexId)]), Double]) : Iterator[(VertexId, (List[VertexId], List[(VertexId, VertexId)]))]= 50 | Iterator((edge.dstId, (edge.srcAttr._2.:+(edge.srcId) , edge.srcAttr._3.+:(edge.srcId, edge.dstId))), 51 | (edge.srcId, (edge.dstAttr._2.:+(edge.dstId) , edge.dstAttr._3.+:(edge.srcId, edge.dstId))) 52 | ) 53 | def messageCombiner(a: (List[VertexId], List[(VertexId, VertexId)]), b: (List[VertexId], List[(VertexId, VertexId)])): (List[VertexId], List[(VertexId, VertexId)]) = 54 | (a._1.union(b._1) , a._2.union(b._2) ) 55 | // The initial message received by all vertices in PageRank 56 | val initialMessage = (List[VertexId](), List[(VertexId, VertexId)]()) 57 | 58 | // Execute pregel for k iterations, get all vertices/edges in distance k for every node 59 | Pregel(graphContainingGraphlets, initialMessage, k, activeDirection = EdgeDirection.Both)( 60 | vertexProgram, sendMessage, messageCombiner) 61 | //.reverse // return to originial directon 62 | } 63 | 64 | def computeVertexBetweenessCentrality(id: VertexId, vlist: List[VertexId], elist: List[(VertexId, VertexId)]): List[(VertexId, Double)] = 65 | { 66 | // Init data structures 67 | val s = Stack[VertexId]() 68 | val q = Queue[VertexId]() 69 | 70 | val dist = new HashMap[VertexId, Double]() 71 | val sigma = new HashMap[VertexId, Double]() 72 | val delta = new HashMap[VertexId, Double]() 73 | val predecessors = new HashMap[VertexId, ListBuffer[VertexId]]() 74 | val neighbourMap : HashMap[VertexId, List[VertexId]] = getNeighbourMap(vlist,elist) 75 | val medBC = new ListBuffer[(VertexId, Double)]() 76 | 77 | for (vertex <- vlist) 78 | { 79 | dist.put(vertex, Double.MaxValue) 80 | sigma.put(vertex, 0.0) 81 | delta.put(vertex, 0.0) 82 | predecessors.put(vertex, ListBuffer[VertexId]()) 83 | } 84 | 85 | // Init values before first iteration 86 | dist(id) = 0.0 87 | sigma(id) = 1.0 88 | q.enqueue(id) 89 | 90 | // Go over all queued vertices 91 | while (!(q.isEmpty)) 92 | { 93 | val v = q.dequeue() 94 | s.push(v) 95 | // Go over v's neighbours 96 | for (w <- neighbourMap(v)) 97 | { 98 | if (dist(w) == Double.MaxValue) 99 | { 100 | dist(w) = dist(v) + 1.0 101 | q.enqueue(w) 102 | } 103 | if(dist(w) == (dist(v) + 1.0)) 104 | { 105 | sigma(w) += sigma(v) 106 | predecessors(w).+=(v) 107 | } 108 | } 109 | } 110 | 111 | while (!(s.isEmpty)) 112 | { 113 | val v = s.pop() 114 | for (w <- predecessors(v)) 115 | { 116 | delta(w) += (sigma(w) / sigma(v)) * (delta(v) + 1.0) 117 | } 118 | if (v != id) 119 | { 120 | medBC.append((v, delta(v))) 121 | } 122 | } 123 | 124 | medBC.toList 125 | } 126 | 127 | def getNeighbourMap(vlist: List[VertexId], elist: List[(VertexId, VertexId)]): HashMap[VertexId, List[VertexId]] = 128 | { 129 | val neighbourList = new HashMap[VertexId, List[VertexId]]() 130 | 131 | vlist.foreach { case(v) => 132 | {val nlist = (elist.filter{case(e) => ((e._1 == v) || (e._2 == v))}) 133 | .map{case(e) => {if (e._1 == v) e._2 else e._1 }} 134 | neighbourList.+=((v,nlist.distinct)) 135 | } 136 | } 137 | 138 | neighbourList 139 | } 140 | 141 | def aggregateGraphletsBetweennessScores(vertexKBcGraph: Graph[(VertexId, List[(VertexId, Double)]), Double]): Graph[Double, Double] = 142 | { 143 | val DEFAULT_BC = 0.0 144 | 145 | val kBCAdditions = 146 | vertexKBcGraph 147 | .vertices 148 | .flatMap{case(v, (id, listkBC)) => 149 | (listkBC.map{case(w, kBC)=>(w, kBC)})} 150 | 151 | val verticeskBC = 152 | kBCAdditions 153 | .reduceByKey(_ + _) 154 | 155 | val kBCGraph = 156 | vertexKBcGraph 157 | .outerJoinVertices(verticeskBC)({case(v_id,(g_id,g_medkBC),kBC) => (kBC.getOrElse(DEFAULT_BC))}) 158 | 159 | kBCGraph 160 | } 161 | 162 | } -------------------------------------------------------------------------------- /src/main/scala/com/centrality/kBC/kBCDriver.scala: -------------------------------------------------------------------------------- 1 | package com.centrality.kBC 2 | 3 | import java.util.Calendar 4 | 5 | import org.apache.spark.SparkConf 6 | import org.apache.spark.SparkContext 7 | import org.apache.spark.graphx.GraphLoader 8 | import org.apache.spark.graphx.PartitionStrategy 9 | 10 | object kBCDriver 11 | { 12 | def main(args: Array[String]) 13 | { 14 | // Create spark context 15 | val appName="kBCDriver" 16 | val conf = new SparkConf().setAppName(appName)//.setMaster(master) 17 | val sc = new SparkContext(conf) 18 | 19 | // Graph partition params 20 | val DEFAULT_K = 2 21 | val DEFAULT_EDGE_PARTITIONS=60 22 | val DEFAULT_CANONICAL_ORIENTATION=true 23 | val k = args(0).toInt 24 | println("k : " + k) 25 | val canonicalOrientation = DEFAULT_CANONICAL_ORIENTATION 26 | val numEdgePartitions = args(1).toInt 27 | 28 | // Input params 29 | val DEFAULT_INPUT_DIR="/tmp/input/" 30 | val DEFAULT_INPUT_FILE_NAME="edge_list.txt" 31 | val inputDir = args(2) 32 | val inputFileName = args(4) 33 | val inputPath = inputDir+inputFileName 34 | println("inputPath : " + inputPath) 35 | 36 | // Output params 37 | val DEFAULT_OUTPUT_DIR="/tmp/output/" 38 | val DEFAULT_V_OUTPUT_FILE=List(inputFileName,"kbc",k,"vertices").mkString("_")+".txt" 39 | val DEFAULT_E_OUTPUT_FILE=List(inputFileName,"kbc",k,"edges").mkString("_")+".txt" 40 | val outputDir = args(3) 41 | val outputVerticesFileName = sc.hadoopConfiguration.get("outputVerticesFileName", DEFAULT_V_OUTPUT_FILE) 42 | val outputEdgesFileName = sc.hadoopConfiguration.get("outputEdgesFileName", DEFAULT_E_OUTPUT_FILE) 43 | val outputVerticesPath = sc.hadoopConfiguration.get("outputVerticesPath", outputDir+outputVerticesFileName) 44 | val outputEdgesPath = sc.hadoopConfiguration.get("outputEdgesPath", outputDir+outputEdgesFileName) 45 | println("outputVerticesPath : " + outputVerticesPath) 46 | println("outputEdgesPath : " + outputEdgesPath) 47 | 48 | // Read graph 49 | val graph = GraphLoader.edgeListFile(sc, inputPath, canonicalOrientation, numEdgePartitions).partitionBy(PartitionStrategy.EdgePartition2D) 50 | println(Calendar.getInstance().getTime().toString + " vertices : " + graph.vertices.count()) 51 | println(Calendar.getInstance().getTime().toString + " edges : " + graph.edges.count()) 52 | 53 | // Run kBC 54 | println(Calendar.getInstance().getTime().toString + ": start kBC") 55 | val kBCGraph = 56 | KBetweenness.run(graph, k) 57 | 58 | // Save graph to file 59 | println(Calendar.getInstance().getTime().toString + ": saving results ") 60 | kBCGraph.vertices.coalesce(1).saveAsTextFile(outputVerticesPath) 61 | kBCGraph.edges.coalesce(1).saveAsTextFile(outputEdgesPath) 62 | } 63 | } -------------------------------------------------------------------------------- /src/test/scala/com/centrality/kBC/KBetweennessTest.scala: -------------------------------------------------------------------------------- 1 | package com.centrality.kBC 2 | 3 | import scala.collection.mutable.HashMap 4 | 5 | import org.apache.spark.SparkConf 6 | import org.apache.spark.SparkContext 7 | import org.apache.spark.graphx.Edge 8 | import org.apache.spark.graphx.Graph 9 | import org.apache.spark.graphx.VertexId 10 | import org.apache.spark.rdd.RDD 11 | import org.scalatest.FlatSpec 12 | import org.scalatest.Matchers.contain 13 | import org.scalatest.Matchers.convertToAnyShouldWrapper 14 | import org.scalatest.Matchers.equal 15 | 16 | class KBetweennessTest extends FlatSpec 17 | { 18 | val appName="kBC" 19 | val sparkMode="local" 20 | val conf = new SparkConf().setAppName(appName).setMaster(sparkMode); 21 | val sc = new SparkContext(conf); 22 | 23 | val vertices: RDD[(VertexId, Int)] = 24 | sc.parallelize(Array( 25 | (1L, 0), 26 | (2L, 0), 27 | (3L, 0), 28 | (4L, 0), 29 | (5L, 0), 30 | (6L, 0), 31 | (7L, 0) 32 | )) 33 | // Create an RDD for edges 34 | val edges: RDD[Edge[Int]] = 35 | sc.parallelize(Array( 36 | Edge(1L, 2L, 0), 37 | Edge(1L, 3L, 0), 38 | Edge(2L, 4L, 0), 39 | Edge(3L, 4L, 0), 40 | Edge(3L, 5L, 0), 41 | Edge(4L, 6L, 0), 42 | Edge(5L, 7L, 0) 43 | )) 44 | val defaultVertex = 0 45 | // Build the initial Graph 46 | val graph = Graph(vertices, edges, defaultVertex) 47 | 48 | " getNeighbourMap " should " return neighbour map for graph" in 49 | { 50 | val vlist : List[VertexId] = 51 | List(1L, 2L, 3L, 4L, 5L, 6L, 7L) 52 | val elist : List[(VertexId, VertexId)] = 53 | List((1L,2L),(1L,3L),(2L,4L),(3L,4L),(3L,5L),(4L,6L),(5L,7L)) 54 | val neighbourList : HashMap[VertexId, List[VertexId]] = 55 | KBetweenness.getNeighbourMap(vlist, elist) 56 | 57 | neighbourList(1L) should contain only (2L, 3L) 58 | neighbourList(2L) should contain only (1L, 4L) 59 | neighbourList(3L) should contain only (1L, 4L, 5L) 60 | neighbourList(4L) should contain only (2L, 3L, 6L) 61 | neighbourList(5L) should contain only (3L, 7L) 62 | neighbourList(6L) should contain only (4L) 63 | neighbourList(7L) should contain only (5L) 64 | } 65 | 66 | " createKGraphlets " should " return 1 graphlets" in 67 | { 68 | val k = 1 69 | 70 | val kGraphletsGraph = 71 | KBetweenness.createKGraphlets(graph, k) 72 | 73 | val graphlets = kGraphletsGraph.vertices.collect() 74 | 75 | val sortedGraphlets = 76 | graphlets.toList.sortWith((x,y) => x._1 < y._1) 77 | 78 | sortedGraphlets(0)._1 should equal (1L) 79 | sortedGraphlets(0)._2._1 should equal (0.0) 80 | sortedGraphlets(0)._2._2 should contain only (1L, 2L, 3L) 81 | sortedGraphlets(0)._2._3 should contain only ((1L,2L), (1L,3L)) 82 | 83 | sortedGraphlets(1)._1 should equal (2L) 84 | sortedGraphlets(1)._2._1 should equal (0.0) 85 | sortedGraphlets(1)._2._2 should contain only (1L, 2L, 4L) 86 | sortedGraphlets(1)._2._3 should contain only ((1L,2L), (2L,4L)) 87 | 88 | sortedGraphlets(2)._1 should equal (3L) 89 | sortedGraphlets(2)._2._1 should equal (0.0) 90 | sortedGraphlets(2)._2._2 should contain only (1L, 3L, 4L, 5L) 91 | sortedGraphlets(2)._2._3 should contain only ((1L,3L), (3L,4L), (3L,5L)) 92 | 93 | sortedGraphlets(3)._1 should equal (4L) 94 | sortedGraphlets(3)._2._1 should equal (0.0) 95 | sortedGraphlets(3)._2._2 should contain only (2L, 3L, 4L, 6L) 96 | sortedGraphlets(3)._2._3 should contain only ((2L,4L), (3L,4L), (4L,6L)) 97 | 98 | sortedGraphlets(4)._1 should equal (5L) 99 | sortedGraphlets(4)._2._1 should equal (0.0) 100 | sortedGraphlets(4)._2._2 should contain only (3L, 5L, 7L) 101 | sortedGraphlets(4)._2._3 should contain only ((3L,5L), (5L,7L)) 102 | 103 | sortedGraphlets(5)._1 should equal (6L) 104 | sortedGraphlets(5)._2._1 should equal (0.0) 105 | sortedGraphlets(5)._2._2 should contain only (4L, 6L) 106 | sortedGraphlets(5)._2._3 should contain only ((4L,6L)) 107 | 108 | sortedGraphlets(6)._1 should equal (7L) 109 | sortedGraphlets(6)._2._1 should equal (0.0) 110 | sortedGraphlets(6)._2._2 should contain only (5L, 7L) 111 | sortedGraphlets(6)._2._3 should contain only ((5L,7L)) 112 | } 113 | 114 | it should " return 3 graphlets" in 115 | { 116 | val k = 3 117 | 118 | val kGraphletsGraph = 119 | KBetweenness.createKGraphlets(graph, k) 120 | 121 | val graphlets = kGraphletsGraph.vertices.collect() 122 | 123 | val sortedGraphlets = 124 | graphlets.toList.sortWith((x,y) => x._1 < y._1) 125 | 126 | sortedGraphlets(0)._1 should equal (1L) 127 | sortedGraphlets(0)._2._1 should equal (0.0) 128 | sortedGraphlets(0)._2._2 should contain only (1L, 2L, 3L, 4L, 5L, 6L, 7L) 129 | sortedGraphlets(0)._2._3 should contain only ((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L), (5L,7L)) 130 | 131 | sortedGraphlets(1)._1 should equal (2L) 132 | sortedGraphlets(1)._2._1 should equal (0.0) 133 | sortedGraphlets(1)._2._2 should contain only (1L, 2L, 3L, 4L, 5L, 6L) 134 | sortedGraphlets(1)._2._3 should contain only ((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L)) 135 | 136 | sortedGraphlets(2)._1 should equal (3L) 137 | sortedGraphlets(2)._2._1 should equal (0.0) 138 | sortedGraphlets(2)._2._2 should contain only (1L, 2L, 3L, 4L, 5L, 6L, 7L) 139 | sortedGraphlets(2)._2._3 should contain only ((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L), (5L,7L)) 140 | 141 | sortedGraphlets(3)._1 should equal (4L) 142 | sortedGraphlets(3)._2._1 should equal (0.0) 143 | sortedGraphlets(3)._2._2 should contain only (1L, 2L, 3L, 4L, 5L, 6L, 7L) 144 | sortedGraphlets(3)._2._3 should contain only ((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L), (5L,7L)) 145 | 146 | sortedGraphlets(4)._1 should equal (5L) 147 | sortedGraphlets(4)._2._1 should equal (0.0) 148 | sortedGraphlets(4)._2._2 should contain only (1L, 2L, 3L, 4L, 5L, 6L, 7L) 149 | sortedGraphlets(4)._2._3 should contain only ((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L), (5L,7L)) 150 | 151 | sortedGraphlets(5)._1 should equal (6L) 152 | sortedGraphlets(5)._2._1 should equal (0.0) 153 | sortedGraphlets(5)._2._2 should contain only (1L, 2L, 3L, 4L, 5L, 6L) 154 | sortedGraphlets(5)._2._3 should contain only ((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L)) 155 | 156 | sortedGraphlets(6)._1 should equal (7L) 157 | sortedGraphlets(6)._2._1 should equal (0.0) 158 | sortedGraphlets(6)._2._2 should contain only (1L, 3L, 4L, 5L, 7L) 159 | sortedGraphlets(6)._2._3 should contain only ((1L,3L), (3L,4L), (3L,5L), (5L,7L)) 160 | } 161 | 162 | "computeVertexBetweenessCentrality" should " compute betwenness scores for single vertices" in 163 | { 164 | val k = 3 165 | 166 | val vertexId1 = 1L 167 | val vertex1VList = List(1L, 2L, 3L, 4L, 5L, 6L, 7L) 168 | val vertex1EList = List((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L), (5L,7L)) 169 | val vertex1KBcGraph = 170 | KBetweenness.computeVertexBetweenessCentrality(vertexId1, vertex1VList, vertex1EList) 171 | 172 | val sorted1KBcContibution = 173 | vertex1KBcGraph.toList.sortWith((x,y) => x._1 < y._1) 174 | 175 | sorted1KBcContibution(0)._1 should equal (2L) 176 | sorted1KBcContibution(0)._2 should equal (1.0) 177 | sorted1KBcContibution(1)._1 should equal (3L) 178 | sorted1KBcContibution(1)._2 should equal (3.0) 179 | sorted1KBcContibution(2)._1 should equal (4L) 180 | sorted1KBcContibution(2)._2 should equal (1.0) 181 | sorted1KBcContibution(3)._1 should equal (5L) 182 | sorted1KBcContibution(3)._2 should equal (1.0) 183 | sorted1KBcContibution(4)._1 should equal (6L) 184 | sorted1KBcContibution(4)._2 should equal (0.0) 185 | sorted1KBcContibution(5)._1 should equal (7L) 186 | sorted1KBcContibution(5)._2 should equal (0.0) 187 | 188 | val vertexId2 = 2L 189 | val vertex2VList = List(1L, 2L, 3L, 4L, 5L, 6L) 190 | val vertex2EList = List((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L)) 191 | val vertex2KBcGraph = 192 | KBetweenness.computeVertexBetweenessCentrality(vertexId2, vertex2VList, vertex2EList) 193 | 194 | val sorted2KBcContibution = 195 | vertex2KBcGraph.toList.sortWith((x,y) => x._1 < y._1) 196 | 197 | sorted2KBcContibution(0)._1 should equal (1L) 198 | sorted2KBcContibution(0)._2 should equal (1.0) 199 | sorted2KBcContibution(1)._1 should equal (3L) 200 | sorted2KBcContibution(1)._2 should equal (1.0) 201 | sorted2KBcContibution(2)._1 should equal (4L) 202 | sorted2KBcContibution(2)._2 should equal (2.0) 203 | sorted2KBcContibution(3)._1 should equal (5L) 204 | sorted2KBcContibution(3)._2 should equal (0.0) 205 | sorted2KBcContibution(4)._1 should equal (6L) 206 | sorted2KBcContibution(4)._2 should equal (0.0) 207 | 208 | val vertexId3 = 3L 209 | val vertex3VList = List(1L, 2L, 3L, 4L, 5L, 6L, 7L) 210 | val vertex3EList = List((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L), (5L,7L)) 211 | val vertex3KBcGraph = 212 | KBetweenness.computeVertexBetweenessCentrality(vertexId3, vertex3VList, vertex3EList) 213 | 214 | val sorted3KBcContibution = 215 | vertex3KBcGraph.toList.sortWith((x,y) => x._1 < y._1) 216 | 217 | sorted3KBcContibution(0)._1 should equal (1L) 218 | sorted3KBcContibution(0)._2 should equal (0.5) 219 | sorted3KBcContibution(1)._1 should equal (2L) 220 | sorted3KBcContibution(1)._2 should equal (0.0) 221 | sorted3KBcContibution(2)._1 should equal (4L) 222 | sorted3KBcContibution(2)._2 should equal (1.5) 223 | sorted3KBcContibution(3)._1 should equal (5L) 224 | sorted3KBcContibution(3)._2 should equal (1.0) 225 | sorted3KBcContibution(4)._1 should equal (6L) 226 | sorted3KBcContibution(4)._2 should equal (0.0) 227 | sorted3KBcContibution(5)._1 should equal (7L) 228 | sorted3KBcContibution(5)._2 should equal (0.0) 229 | 230 | val vertexId4 = 4L 231 | val vertex4VList = List(1L, 2L, 3L, 4L, 5L, 6L, 7L) 232 | val vertex4EList = List((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L), (5L,7L)) 233 | val vertex4KBcGraph = 234 | KBetweenness.computeVertexBetweenessCentrality(vertexId4, vertex4VList, vertex4EList) 235 | 236 | val sorted4KBcContibution = 237 | vertex4KBcGraph.toList.sortWith((x,y) => x._1 < y._1) 238 | 239 | sorted4KBcContibution(0)._1 should equal (1L) 240 | sorted4KBcContibution(0)._2 should equal (0.0) 241 | sorted4KBcContibution(1)._1 should equal (2L) 242 | sorted4KBcContibution(1)._2 should equal (0.5) 243 | sorted4KBcContibution(2)._1 should equal (3L) 244 | sorted4KBcContibution(2)._2 should equal (2.5) 245 | sorted4KBcContibution(3)._1 should equal (5L) 246 | sorted4KBcContibution(3)._2 should equal (1.0) 247 | sorted4KBcContibution(4)._1 should equal (6L) 248 | sorted4KBcContibution(4)._2 should equal (0.0) 249 | sorted4KBcContibution(5)._1 should equal (7L) 250 | sorted4KBcContibution(5)._2 should equal (0.0) 251 | 252 | val vertexId5 = 5L 253 | val vertex5VList = List(1L, 2L, 3L, 4L, 5L, 6L, 7L) 254 | val vertex5EList = List((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L), (5L,7L)) 255 | val vertex5KBcGraph = 256 | KBetweenness.computeVertexBetweenessCentrality(vertexId5, vertex5VList, vertex5EList) 257 | 258 | val sorted5KBcContibution = 259 | vertex5KBcGraph.toList.sortWith((x,y) => x._1 < y._1) 260 | 261 | sorted5KBcContibution(0)._1 should equal (1L) 262 | sorted5KBcContibution(0)._2 should equal (0.5) 263 | sorted5KBcContibution(1)._1 should equal (2L) 264 | sorted5KBcContibution(1)._2 should equal (0.0) 265 | sorted5KBcContibution(2)._1 should equal (3L) 266 | sorted5KBcContibution(2)._2 should equal (4.0) 267 | sorted5KBcContibution(3)._1 should equal (4L) 268 | sorted5KBcContibution(3)._2 should equal (1.5) 269 | sorted5KBcContibution(4)._1 should equal (6L) 270 | sorted5KBcContibution(4)._2 should equal (0.0) 271 | sorted5KBcContibution(5)._1 should equal (7L) 272 | sorted5KBcContibution(5)._2 should equal (0.0) 273 | 274 | val vertexId6 = 6L 275 | val vertex6VList = List(1L, 2L, 3L, 4L, 5L, 6L) 276 | val vertex6EList = List((1L,2L), (1L,3L), (2L,4L), (3L,4L), (3L,5L), (4L,6L)) 277 | val vertex6KBcGraph = 278 | KBetweenness.computeVertexBetweenessCentrality(vertexId6, vertex6VList, vertex6EList) 279 | 280 | val sorted6KBcContibution = 281 | vertex6KBcGraph.toList.sortWith((x,y) => x._1 < y._1) 282 | 283 | sorted6KBcContibution(0)._1 should equal (1L) 284 | sorted6KBcContibution(0)._2 should equal (0.0) 285 | sorted6KBcContibution(1)._1 should equal (2L) 286 | sorted6KBcContibution(1)._2 should equal (0.5) 287 | sorted6KBcContibution(2)._1 should equal (3L) 288 | sorted6KBcContibution(2)._2 should equal (1.5) 289 | sorted6KBcContibution(3)._1 should equal (4L) 290 | sorted6KBcContibution(3)._2 should equal (4.0) 291 | sorted6KBcContibution(4)._1 should equal (5L) 292 | sorted6KBcContibution(4)._2 should equal (0.0) 293 | 294 | val vertexId7 = 7L 295 | val vertex7VList = List(1L, 3L, 4L, 5L, 7L) 296 | val vertex7EList = List((1L,3L), (3L,4L), (3L,5L), (5L,7L)) 297 | val vertex7KBcGraph = 298 | KBetweenness.computeVertexBetweenessCentrality(vertexId7, vertex7VList, vertex7EList) 299 | 300 | val sorted7KBcContibution = 301 | vertex7KBcGraph.toList.sortWith((x,y) => x._1 < y._1) 302 | 303 | sorted7KBcContibution(0)._1 should equal (1L) 304 | sorted7KBcContibution(0)._2 should equal (0.0) 305 | sorted7KBcContibution(1)._1 should equal (3L) 306 | sorted7KBcContibution(1)._2 should equal (2.0) 307 | sorted7KBcContibution(2)._1 should equal (4L) 308 | sorted7KBcContibution(2)._2 should equal (0.0) 309 | sorted7KBcContibution(3)._1 should equal (5L) 310 | sorted7KBcContibution(3)._2 should equal (3.0) 311 | 312 | } 313 | 314 | "run" should " compute betwenness centrality graph" in 315 | { 316 | val k = 3 317 | val kBCGraph = 318 | KBetweenness.run(graph, k) 319 | 320 | val verticesBetweenness = 321 | kBCGraph 322 | .vertices 323 | .collect() 324 | 325 | val sortedVBC = 326 | verticesBetweenness.sortWith((x,y) => x._1 < y._1) 327 | 328 | sortedVBC(0)._1 should equal (1L) 329 | sortedVBC(0)._2 should equal (2.0) 330 | sortedVBC(1)._1 should equal (2L) 331 | sortedVBC(1)._2 should equal (2.0) 332 | sortedVBC(2)._1 should equal (3L) 333 | sortedVBC(2)._2 should equal (14.0) 334 | sortedVBC(3)._1 should equal (4L) 335 | sortedVBC(3)._2 should equal (10.0) 336 | sortedVBC(4)._1 should equal (5L) 337 | sortedVBC(4)._2 should equal (6.0) 338 | sortedVBC(5)._1 should equal (6L) 339 | sortedVBC(5)._2 should equal (0.0) 340 | sortedVBC(6)._1 should equal (7L) 341 | sortedVBC(6)._2 should equal (0.0) 342 | } 343 | 344 | } --------------------------------------------------------------------------------