Finds the publications by professors at the Computer Science department at UIC from the dblp xml dataset and creates a graph displaying the Bibliographic coupling between them.

Tools used

1. Intellij
2. Scala
3. Sbt
4. Cloudera Quickstart Vm - linux vm with all the necessary Apache tools(Mapreduce, HDFS) installed.
5. Gephi - graphing tool

sbt 2.12.8: The dependencies are defined within build.sbt

**Instructions **

Install jdk 1.8 on cloudera

1. Change Java Home Directory in the cloudera manager configurations tab.
2. Add JAVA_HOME in /etc/hadoop/conf/hadoop-env.sh.
3. Increase Mapreduce Timeout to 6000000.
4. Configure Intellij to connect with cloudera through SFTP. Get ip address of Intellij using ip addr and connect using the default username and password cloudera.
5. Define mapping in Mapping tab.
6. Create fat jar using sbt clean, sbt compile and sbt assembly in order.
7. Transfer jar and dblp.xml via sftp.
8. On cloudera vm:
   i)go to input folder defined in mapping.
   ii)start terminal there. Execute the following commands.
   sudo su hdfs
$ hadoop fs -mkdir /user/cloudera
$ hadoop fs -chown cloudera /user/cloudera
$ exit
$ sudo su cloudera
$ hadoop fs -mkdir /user/cloudera/wordcount /user/cloudera/wordcount/input
$ hadoop fs -put <input_path>/dblp.xml /user/cloudera/wordcount/input
$ hadoop jar untitled-assembly-1.2.8.jar /user/cloudera/wordcount/input /user/cloudera/wordcount/output
$ hadoop fs -get /user/cloudera/wordcount/output <output path>
9. Copy resulting csv file and add it to project directory.
10. Rename output file to dblp.csv.
11. Run graphMapper.scala on output file.
12. Take result file result.csv and run on Gephi.
13. Import the file as a edges table with separator semicolon and set the Merge strategy to sum(if not already set).