Applications for Big Data processing and Data-driven Decision Support using Spark and Machine Learning Dependencies Java version: 8 Apache Spark: 3.0.0 Apache Hadoop: 3.3.0 Apache Maven: 3.3.0 Technology stack IntelliJ IDEA Ultimate Features Spark: spark-core_2.12, spark-sql_2.12 build plugins: maven-compiler-plugin, maven-assembly-plugin CSV, SparkConf, JavaSparkContext, JavaRDD, parallelize, BufferedReader, InputStream, InputStreamReader, HashSet, Set, List, ArrayList, Arrays, ImmutableList, Serializable, flatMap, filter, collect, map, flatMap, reduce, mapToPair, reduceByKey, sortByKey, take, contains, ...