Tag: Mixed Computations

It is common that a contemporary information system has multiple or diverse data sources, especially an analytic application, which often needs to perform data analysis on several sources, sometimes of different types, through mixed computation. There are a variety of data sources, including RDB, NoSQL, files like CSV and Excel, JSON, XML, HDFS, Elasticsearch, Kafka, etc. Implementing a mixed computation on heterogeneous sources is not easy because they vary greatly in their computing ability. RDBs boast powerful ability on which computations can rely on, while NoSQL databases have rather weak computing ability and files do not have any. It is