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val model = sc.broadcast(sc.textFile(args.model() + "/part-00000").map(line => { val words = line.split(",") (words(0).tail.toInt, words(1).init.toDouble) }).collectAsMap())
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val model = sc.broadcast(sc.textFile(args.model() + "/part-00000").map(line => { val words = line.split(",") (words(0).tail.toInt, words(1).init.toDouble) }).collectAsMap())