| commit | 592039e17bdc2b6ba5e328651b15862ac5410f98 | [log] [tgz] |
|---|---|---|
| author | Sebastian <baunsgaard@tugraz.at> | Fri Jun 05 11:22:50 2020 +0200 |
| committer | baunsgaard <baunsgaard@tugraz.at> | Sun Sep 06 12:18:48 2020 +0200 |
| tree | b17e208eabc7763b8417884d4dcff033461605a9 | |
| parent | 677cc65bddd187ca8fb526b54e9932d40056b010 [diff] |
[SYSTEMDS-372] ColGroup Base Data to Byte This commit enables all col groups to change fundamental data to byte by applying a scaling value. The current setup scales to the range -127 to 127, to enable encoding negative numbers. This commit also include fixes to the count distinct algorithm. - Distinct count for compressed Matrix - fix support for multiple blocks in input count distinct - Extended CountDistinct Tests - Cleanup CountDistinct - Lossy compression setting - Relocation of bitmap - Compression Settings Now include CoCoding planning - add comments on compression Settings - add docs for CompressionSettingsBuilder - parse Valid ColGroups from Settings file - Update Sum operation to leverage Quantized values
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.
Quick Start Install, Quick Start and Hello World
Documentation: SystemDS Documentation
Python Documentation Python SystemDS Documentation
Issue Tracker Jira Dashboard
Status and Build: SystemDS is still in pre-alpha status. The original code base was forked from Apache SystemML 1.2 in September 2018. We will continue to support linear algebra programs over matrices, while replacing the underlying data model and compiler, as well as substantially extending the supported functionalities. Until the first release, you can build your own snapshot via Apache Maven: mvn clean package -P distribution.
