qlever
Very fast SPARQL Engine, which can handle very large knowledge graphs like the complete Wikidata, offers context-sensitive autocompletion for SPARQL queries, and allows combination with text search. It's faster than engines like Blazegraph or Virtuoso, especially for queries involving large result sets. (by ad-freiburg)
relatedhow
A website to quickly find out how species are related (by boxed)
| qlever | relatedhow | |
|---|---|---|
| 3 | 2 | |
| 275 | 3 | |
| 3.6% | - | |
| 9.3 | 5.7 | |
| 4 days ago | 5 months ago | |
| C++ | Python | |
| Apache License 2.0 | BSD 3-clause "New" or "Revised" License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
qlever
Posts with mentions or reviews of qlever.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-07-02.
- QLever – Fast Sparql Engine
-
Distributed RDF Query Processing
Qlever wiki: https://github.com/ad-freiburg/qlever/wiki
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Data-Mining Wikipedia for Fun and Profit
There's an alternate Wikidata query engine available here: https://qlever.cs.uni-freiburg.de/wikidata (from https://github.com/ad-freiburg/QLever)
Currently it doesn't support some SPARQL features, but I've found it to generally be quite a bit faster for most queries.
relatedhow
Posts with mentions or reviews of relatedhow.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2021-08-19.
-
Tree of Life Explorer
Also check out my hobby project: https://relatedhow.kodare.com/
It's not as fancy looking, but it's a lot more complete.
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Data-Mining Wikipedia for Fun and Profit
I am doubtful. I tried for a long time to use it to get data or for my taxonomic graph project (https://relatedhow.kodare.com/) and SPARCQL was just not usable at all. The biggest problem was the 60s time limit. Totally not workable for what I wanted. I also had issues with seemingly inconsistent results, but it was hard to tell.
I ended up loading the full nightly db dump and filtering it streaming from the zip instead. Faster and it actually worked.
The code to do that is at https://github.com/boxed/relatedhow
What are some alternatives?
When comparing qlever and relatedhow you can also consider the following projects:
EasierRDF - Making RDF easy enough for most developers
Konclude - Konclude: A parallel, tableau-based, high-performance reasoner for the Description Logic SROIQV(D)/the Web Ontology Language (OWL) 2 DL