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Content-based recommendationsDifficulty in developing classification/attributesUse Professionals (editors) to sort products, but this creates cost and efficiency bottlenecksEditorial opinion may not be representative of the user's opinion, subject to the professional level of the editor.The granularity of classification is difficult to controlIf a product has multiple classifications, it is difficult to considerMultidimensional, multi-angle classifica

Analysis2.4 Understanding Spark's differences and connections with other projectsSpark and MapReduce, TezSpark's derivative project Blinkdb,rspark2.5 Follow Spark's author's blog and documentation for authoritative websites3 Advanced Articles3.1 In-depth understanding of Spark's architecture and processing patterns3.2 Spark Source analysis and ReadingSpark Core Core Module,Master the processing logic of the following core functions:SparkcontextExecutorDeployRDD and StorageScheduler and TaskSpar