🔥 人人可用的开源 BI 工具，数据可视化神器。An open-source BI tool alternative to Tableau.
- tableau
- data-visualization
- superset
- apache-doris
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QuestDB is a high performance, open-source, time-series database
- time-series
- low-latency
- database
- sql
🔎 Open source distributed and RESTful search engine.
- search
- search-engine
- analytics
- java
OpenRefine is a free, open source power tool for working with messy data and improving it
- datacleansing
- data-analysis
- java
- opendata
Estimating the number of clusters in a data set via the gap statistic. Implemented in H2O-3
- kmeans
- kmeans-clustering
- clustering
- gap-statistic