Top 8 Java Data Science Projects

• OpenRefine

  15 8,870 9.8 Java

  OpenRefine is a free, open source power tool for working with messy data and improving it

  

  Project mention: Cannot create table from CSV file in BigQuery. | reddit.com/r/learnSQL | 2022-06-05

  I'm not familiar with BigQuery but could it be inconsistencies in the data maybe? So I mean missing commas or quotes or incorrect datetime formats or something like that. You can use the CSV Lint plug-in in Notepad++ or install OpenRefine so check for those type for errors.

• airbyte

  46 7,123 10.0 Java

  Airbyte is an open-source EL(T) platform that helps you replicate your data in your warehouses, lakes and databases.

  

  Project mention: Ask HN: How are you dealing with the M1/ARM migration? | news.ycombinator.com | 2022-06-10

• JetBrains

  surveys.jetbrains.com

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• Trino

  11 5,622 10.0 Java

  Official repository of Trino, the distributed SQL query engine for big data, formerly known as PrestoSQL (https://trino.io)

  

  Project mention: How-to-Guide: Contributing to Open Source | reddit.com/r/dataengineering | 2022-06-11

  Although Trino (formerly Presto) is in the awesome for beginners list, it’s also a really good DE project as it is a distributed query engine that connects to most of the projects listed above. So depending on where you work in this project you can gain a depth of knowledge on the query engine or breadth across all the connectors …or go hybrid .

• Smile

  2 5,531 8.5 Java

  Statistical Machine Intelligence & Learning Engine

  Project mention: What libraries do you use for machine learning and data visualizing in scala? | reddit.com/r/scala | 2021-11-27

  I use smile https://github.com/haifengl/smile with ammonite and it feels pretty easy/good to work with. Of course for pure looking at data, and exploration, you're not going to beat python.

• Tablesaw

  0 2,932 8.8 Java

  Java dataframe and visualization library

  

• DatumBox

  0 1,077 0.0 Java

  Datumbox is an open-source Machine Learning framework written in Java which allows the rapid development of Machine Learning and Statistical applications.

• zingg

  20 537 9.7 Java

  Scalable entity resolution, data mastering and deduplication using ML

  

  Project mention: is it possible to "fuzzy match" or dedupe columns in Redshift? | reddit.com/r/aws | 2022-04-30

  If you are open to using a framework for this, check Zingg at https://github.com/zinggAI/zingg. It connects to Redshift, snowflake and other warehouses and can handle multiple columns

• SonarQube

  www.sonarqube.org

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• rumble

  1 173 9.7 Java

  ⛈️ RumbleDB 1.19.0 "Tipuana Tipu" 🌳 for Apache Spark | Run queries on your large-scale, messy JSON-like data (JSON, text, CSV, Parquet, ROOT, AVRO, SVM...) | No install required (just a jar to download) | Declarative Machine Learning and more (by RumbleDB)

  

  Project mention: RumbleDB: Query with ease a lot of different nested, heterogeneous data formats | news.ycombinator.com | 2021-12-01

Java Data Science related posts

• I'm just going to say it - I prefer Spyder
  2 projects | reddit.com/r/datascience | 9 Jun 2022
• Airbyte and Meltano comparison
  2 projects | reddit.com/r/dataengineering | 23 Feb 2022
• Launch HN: Castled Data (YC W22) – Open-Source Reverse ETL
  1 project | reddit.com/r/hackernews | 25 Jan 2022
• Castled - an open source reverse ETL solution that helps you to periodically sync the data in your db/warehouse into sales, marketing, support or custom apps without any help from engineering teams
  1 project | reddit.com/r/dataengineering | 25 Jan 2022
• Castled - an open source reverse ETL solution that helps you to periodically sync the data in your db/warehouse into sales, marketing, support or custom apps without any help from engineering teams
  1 project | reddit.com/r/ETL | 25 Jan 2022
• Castled - an open source reverse ETL solution that helps you to periodically sync the data in your db/warehouse into sales, marketing, support or custom apps without any help from engineering teams
  1 project | reddit.com/r/programming | 25 Jan 2022
• Launch HN: Castled Data (YC W22) – Open-Source Reverse ETL
  3 projects | news.ycombinator.com | 25 Jan 2022

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