{"id":20960319,"url":"https://github.com/instance01/brtdp-ds-mpi","last_synced_at":"2026-04-27T06:33:04.866Z","repository":{"id":68070182,"uuid":"203322613","full_name":"instance01/BRTDP-DS-MPI","owner":"instance01","description":"BRTDP implemented including DS-MPI for upper bound","archived":false,"fork":false,"pushed_at":"2020-03-04T04:48:15.000Z","size":4304,"stargazers_count":0,"open_issues_count":0,"forks_count":2,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-12-30T13:16:46.091Z","etag":null,"topics":["bounded-realtime-dp","brtdp","ds-mpi","markov-decision-process","mdp","paper-implementations","rtdp"],"latest_commit_sha":null,"homepage":"","language":"Python","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/instance01.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","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":"2019-08-20T07:24:55.000Z","updated_at":"2020-03-04T04:48:17.000Z","dependencies_parsed_at":"2023-02-22T06:16:17.401Z","dependency_job_id":null,"html_url":"https://github.com/instance01/BRTDP-DS-MPI","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/instance01/BRTDP-DS-MPI","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/instance01%2FBRTDP-DS-MPI","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/instance01%2FBRTDP-DS-MPI/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/instance01%2FBRTDP-DS-MPI/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/instance01%2FBRTDP-DS-MPI/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/instance01","download_url":"https://codeload.github.com/instance01/BRTDP-DS-MPI/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/instance01%2FBRTDP-DS-MPI/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":32326020,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-26T23:26:28.701Z","status":"online","status_checked_at":"2026-04-27T02:00:06.769Z","response_time":128,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"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":["bounded-realtime-dp","brtdp","ds-mpi","markov-decision-process","mdp","paper-implementations","rtdp"],"created_at":"2024-11-19T01:58:27.556Z","updated_at":"2026-04-27T06:33:04.834Z","avatar_url":"https://github.com/instance01.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"# BRTDP-DS-MPI\n\nDS-MPI is also called Dijkstra Sweep for Monotone Pessimistic Initialization [1].\nIt is used for finding an efficient upper bound initialization for BRTDP.\nThis repo includes an implementation of BRTDP and DS-MPI.\n\nFor all my homies out there struggling to implement DS-MPI.\n\nWatch it visit only a small part of the whole state space!\n\n![States visited by BRTDP](https://raw.githubusercontent.com/instance01/osmnx-mdp/master/.github/brtdp_band2.png)\n\n[1] McMahan, H. Brendan, Maxim Likhachev, and Geoffrey J. Gordon. \"Bounded real-time dynamic programming: RTDP with monotone upper bounds and performance guarantees.\" Proceedings of the 22nd international conference on Machine learning. ACM, 2005.\n\n## osmnx\\_mdp\n\nThis is basically a stripped down version of [osmnx\\_mdp](https://github.com/instance01/osmnx-mdp), which solves routing with uncertainty using Markov decision processes.\n\nI decided to keep everything intact so it is clear how BRTDP is used. In this case, a single simulation of an agent trying to get from A to B on the Munich map using BRTDP.\n\nBasically, `BRTDP_DS_MPI/algorithm/cpp_brtdp.cpp` has the main implementation and `BRTDP_DS_MPI/simulation.pyx` applies BRTDP.\n\nRunning/Development:\n```\nsudo docker build -t brtdp-ds-mpi -f Dockerfile .\nsudo docker run -v $(pwd):/app -it brtdp-ds-mpi bash\n```\n\nTo run the current simulation:\n```\ncd BRTDP_DS_MPI\nsetup\nrun\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Finstance01%2Fbrtdp-ds-mpi","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Finstance01%2Fbrtdp-ds-mpi","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Finstance01%2Fbrtdp-ds-mpi/lists"}