Differences between Apache Mahout and Spark MLLib:
- Apache Mahout is a multi-backend capable high level system with implementations of some scalable algorithms.
- These fundamentally include large-scale matrix decomposition and recommendation algorithms, yet any linear algebra based issue can be attacked with Mahout.
- Efficient implementation is likely at this point to require improvement of the current optimizer (which is relatively easy to do), but when the optimizer is able to simplify the program, the results are quite dramatic.
- Mahout also supports both Spark and H2O back-ends while MLLib is bound only to Spark.
- If Spark manages to dominate all other possible back-ends (such as H2O, Julia or many others) then it is likely that MLLib will do as well as Mahout on performance.
- On the other hand, with back ends that have super high performance specialized capabilities, Mahout will give you port programs to utilize these capabilities very efficiently.
- MLLib is new and has yet to really hit its stride while Mahout is older and has belongings from the earlier period.
- These to characteristics are opposite sides of the similar coin. Mahout focuses on algorithms for which there is a wide-spread need for scalable algorithms. MLLib is considerably more liberal with what is gotten.
- Mahout and MLLib both have a typical execution engine.
- Apache Mahout focuses on machine learning and have a rich set of algorithms, while MLLib only adopt various develop and basic algorithms.