我一直在測試示例代碼http://spark.apache.org/docs/latest/mllib-collaborative-filtering.html#explicit-vs-implicit-feedback與我自己的數據。ALS.trainImplicit()的alpha參數是否可以大於1?
當我把阿爾法大於1,如由源文件在
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4781121
建議我得到的錯誤
Py4JError: An error occurred while calling o629.trainImplicitALSModel. Trace: py4j.Py4JException: Method trainImplicitALSModel([class org.apache.spark.api.java.JavaRDD, class java.lang.Integer, class java.lang.Integer, class java.lang.Double, class java.lang.Integer, class java.lang.Integer, class java.lang.Boolean, null]) does not exist
是在PySpark < 1阿爾法的限制?
謝謝。這工作 – user1340048