787 Open source projects that are alternatives of or similar to OLGA

(subjective) overview of projects which are related both to python and semantic technologies (RDF, OWL, Reasoning, ...)

Storing ontologies/vocabularies from the web. Wish anybody can translate some of them.

🔗 Semantic MediaWiki turns MediaWiki into a knowledge management platform with query and export capabilities

ONT-API (OWL-API over Apache Jena)

The Knowledge Graph notebook. Apache license.

Mobi is a decentralized, federated, and distributed graph data platform for teams and communities to publish and discover data, data models, and analytics that are instantly consumable.

OWL and Semantic Web toolkit for Common Lisp, used for construction and reasoning over ontologies and ontology-structured data

Streaming, transforming, SPARQL-based CSV to RDF converter. Apache license.

Get notifications about changes in your SPARQL endpoint.

The semantic desktop search engine

Tools for working with KGCL

LD Connect is a Linked Data portal for IOS Press in collaboration with the STKO Lab at UC Santa Barbara.

python library for working with ontologies and ontology associations

Ontology-driven Linked Data processor and server for SPARQL backends. Apache License.

Software platform implementing and extending the standards of the Semantic Web.

In-memory Graph Database and Knowledge Graph with Natural Language Interface, compatible with Pandas

A JSON-LD 1.1 Processor & API

Language Servers for Stardog Languages

SPARQL micro-services: A lightweight approach to query Web APIs with SPARQL

Document RDFizer for CouchDB

Linked SPARQL Queries (LSQ): Framework for RDFizing triple store (web) logs and performing SPARQL query extraction, analysis and benchmarking in order to produce datasets of Linked SPARQL Queries

A library that uses Python to connect and manipulate Jena Fuseki, which provides sync and async methods.

A Python frontend to (Open Biomedical) Ontologies.

A lightweight C/C++ library for working with Web Ontology Language (OWL) ontologies

The Ontology for Biomedical Investigations

Open Source REST API for named entity extraction, named entity linking, named entity disambiguation, recommendation & reconciliation of entities like persons, organizations and places for (semi)automatic semantic tagging & analysis of documents by linked data knowledge graph like SKOS thesaurus, RDF ontology, database(s) or list(s) of names

PheKnowLator: Heterogeneous Biomedical Knowledge Graphs and Benchmarks Constructed Under Alternative Semantic Models

The Financial Industry Business Ontology (FIBO) defines the sets of things that are of interest in financial business applications and the ways that those things can relate to one another. In this way, FIBO can give meaning to any data (e.g., spreadsheets, relational databases, XML documents) that describe the business of finance.

A JSON-LD Serialization Libary for Python

Converts GraphQL queries to SPARQL queries

KBPedia Knowledge Graph & Knowledge Ontology (KKO)

Lightweight and friendly .NET library for modeling Semantic Web applications

GraphQL interface for querying and serving linked data on the Web.

SANSA Machine Learning Layer

SKOS-Play allows to print SKOS files in HTML or PDF. It also embeds xls2rdf to generate RDF from Excel.

GraphQL interface for querying and serving linked data on the Web.

A question answering system for RDF knowledge graphs.

🤖 Neural SPARQL Machines for Knowledge Graph Question Answering.

Eclipse RDF4J: scalable RDF for Java

A curated list of various semantic web and linked data resources.

An ontology of cell types

A curated list of ontology things

Generic Linked Data browser and UX component framework. Apache license.

A Rails application for biological ontologies

Sparklis is a query builder in natural language that allows people to explore and query SPARQL endpoints with all the power of SPARQL and without any knowledge of SPARQL.

SPARQL-proxy: provides cache, job control, and logging for any SPARQL endpoint

A simple ontology and RDF visualization tool.

A Store back-end for rdflib to allow for reading and querying HDT documents

A SPARQL query federator of heterogeneous data sources

RDF2X converts big RDF datasets to the relational database model, CSV, JSON and ElasticSearch.

Graph Explorer can be used to explore RDF graphs in SPARQL endpoints or on the web.

NHibernate Object Relational Mapper

This is a project of build knowledge graph course. The project leverages historical stock price, and integrates social media listening from customers to predict market Trend On Dow Jones Industrial Average (DJIA).

A parser for the SPARQL query language in JavaScript

This is the core development repository for BrightstarDB.

SPARQL for JSON: Turn JSON into RDF using SPARQL syntax

A wrapper for a remote SPARQL endpoint

Information Integration Tool

Blazegraph High Performance Graph Database

Apache Jena