commit | 9f41108cc498e13f03095d4ebb1b903cde9010ec | [log] [tgz] |
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author | Matthias Boehm <mboehm7@gmail.com> | Sat Oct 31 21:34:27 2020 +0100 |
committer | Matthias Boehm <mboehm7@gmail.com> | Sat Oct 31 21:42:23 2020 +0100 |
tree | a5ce01973609d26a090e6a5781bd7e1ea8beb1b9 | |
parent | 998d82e27b8add5a0ca55ac687f0bfd9abe54c8b [diff] |
[SYSTEMDS-2709] Fix missing federated unary aggregate for scalar mean With the fixed missing size propagation for federated init statements, now rewrites trigger, which expose operations we don't support yet. This patch adds, besides the existing row means and columns means, also support for full mean aggregates.
Overview: SystemDS is a versatile system for the end-to-end data science lifecycle from data integration, cleaning, and feature engineering, over efficient, local and distributed ML model training, to deployment and serving. To this end, we aim to provide a stack of declarative languages with R-like syntax for (1) the different tasks of the data-science lifecycle, and (2) users with different expertise. These high-level scripts are compiled into hybrid execution plans of local, in-memory CPU and GPU operations, as well as distributed operations on Apache Spark. In contrast to existing systems - that either provide homogeneous tensors or 2D Datasets - and in order to serve the entire data science lifecycle, the underlying data model are DataTensors, i.e., tensors (multi-dimensional arrays) whose first dimension may have a heterogeneous and nested schema.
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Status and Build: SystemDS is renamed from SystemML which is an Apache Top Level Project. To build from source visit SystemDS Install from source