Apache SystemML 0.9.0-incubating 發布
Apache SystemML 0.9.0-incubating 發布了，SystemML 是靈活的，可伸縮機器學習 (ML) 語言，使用 Java 編寫。機器學習 (ML) 是指無需顯式的編程即可讓計算機學習的能力。
該版本改進內容包括：
*APIs* Improvements to MLContext and to MLPipeline wrappers *Data Ingestion* Data conversion utilities (from RDDs and DataFrames) Data transformations on raw data sets *Optimizations* Extensions to compilation chain, including IPA Improvements to parfor Improved execution of concurrent Spark jobs New rewrites, including eager RDD caching and repartitioning Improvements to buffer pool caching Partitioning-preserving operations On-demand creation of SparkContext Efficient use of RDD checkpointing *Language and Runtime Operators* New matrix multiplication operators (e.g., ZipMM) New multi-threaded readers and operators Extended aggregation-outer operations for different relational operators Sample capability *New Algorithms* Alternating Least Squares (Conjugate Gradient) Cubic Splines (Conjugate Gradient and Direct Solve)
來自： http://www.oschina.net//news/70732/apache-systemml-0-9-0-incubation
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