{"id":20749302,"url":"https://github.com/vtramo/concurrent-el-reasoner","last_synced_at":"2026-04-22T01:31:09.871Z","repository":{"id":227334155,"uuid":"770101658","full_name":"vtramo/concurrent-el-reasoner","owner":"vtramo","description":"Concurrent Classification of EL++ Ontologies","archived":false,"fork":false,"pushed_at":"2024-03-26T16:25:24.000Z","size":2469,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-12-26T12:52:16.692Z","etag":null,"topics":["classification","concurrent-programming","description-logic","owl-api","owl-ontology","semantic-web","tbox"],"latest_commit_sha":null,"homepage":"","language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/vtramo.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2024-03-10T22:55:31.000Z","updated_at":"2024-03-10T22:58:10.000Z","dependencies_parsed_at":"2024-03-26T17:37:52.197Z","dependency_job_id":null,"html_url":"https://github.com/vtramo/concurrent-el-reasoner","commit_stats":null,"previous_names":["vtramo/concurrent-el-reasoner"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/vtramo/concurrent-el-reasoner","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vtramo%2Fconcurrent-el-reasoner","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vtramo%2Fconcurrent-el-reasoner/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vtramo%2Fconcurrent-el-reasoner/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vtramo%2Fconcurrent-el-reasoner/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/vtramo","download_url":"https://codeload.github.com/vtramo/concurrent-el-reasoner/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/vtramo%2Fconcurrent-el-reasoner/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":32117322,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-22T00:31:26.853Z","status":"ssl_error","status_checked_at":"2026-04-22T00:30:22.894Z","response_time":128,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["classification","concurrent-programming","description-logic","owl-api","owl-ontology","semantic-web","tbox"],"created_at":"2024-11-17T08:22:10.417Z","updated_at":"2026-04-22T01:31:09.846Z","avatar_url":"https://github.com/vtramo.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Concurrent Classification of EL++ Ontologies\nThis project implements a Reasoner for a simplified version of the EL++ logic, with a focus on computing the \nclassification of a TBox (subsumption hierarchy). The Reasoner is developed in Java, using the [owlapi](https://github.com/owlcs/owlapi).\n\nThis project is based on the following articles:\n- [Pushing the EL Envelope Further](https://lat.inf.tu-dresden.de/research/papers/2005/BaaderBrandtLutz-IJCAI-05.pdf)\n- [Concurrent Classification of EL Ontologies](https://iccl.inf.tu-dresden.de/w/images/c/c3/Kazakov-Kroetzsch-Simancik_concurrent-el-reasoning_ISWC2011.pdf)\n- [ELK Reasoner: Architecture and Evaluation](https://ceur-ws.org/Vol-858/ore2012_paper10.pdf)\n\n## Usage example\n```java\nvoid main() {\n    \n    OWLOntology ontology;\n    \n    // TBox normalisation\n    OntologyNormaliser ontologyNormaliser = new OntologyNormaliser(ontology);\n    OWLOntology normalisedOntology = ontologyNormaliser.createNormalisedOntology();\n    \n    // Ontology indexing\n    OntologyIndexer ontologyIndexer = new OntologyIndexer(normalisedOntology);\n    OntologyIndex ontologyIndex = ontologyIndexer.buildIndex();\n    \n    // Ontology saturation process\n    OntologySaturationProcess ontologySaturationProcess = new OntologySaturationProcess(normalisedOntology, ontologyIndex);\n    SaturationResult saturationResult = ontologySaturationProcess.saturate();\n    \n    // Build subsumption hierarchy\n    SubsumptionHierarchyProcess subsumptionHierarchyProcess = new SubsumptionHierarchyProcess();\n    SubsumptionHierarchy subsumptionHierarchy = subsumptionHierarchyProcess.buildHierarchy(saturationResult);\n    \n}\n```\n## Usage Example (OWL API)\n```java\nvoid main() {\n\n    OWLOntology ontology;\n    OWLReasonerFactory owlReasonerFactory = new ELPPReasonerFactory();\n    OWLReasoner myReasoner = owlReasonerFactory.createReasoner(ontology);\n    myReasoner.precomputeInferences(InferenceType.CLASS_HIERARCHY);\n    \n}\n```","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvtramo%2Fconcurrent-el-reasoner","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fvtramo%2Fconcurrent-el-reasoner","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvtramo%2Fconcurrent-el-reasoner/lists"}