{"id":34319211,"url":"https://github.com/rnd-forests/skyline-query","last_synced_at":"2026-03-10T22:37:13.091Z","repository":{"id":25702891,"uuid":"29139395","full_name":"rnd-forests/skyline-query","owner":"rnd-forests","description":"Simple implementation of spatial skyline query algorithms","archived":false,"fork":false,"pushed_at":"2022-06-20T23:55:49.000Z","size":6002,"stargazers_count":24,"open_issues_count":1,"forks_count":7,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-12-20T23:41:53.468Z","etag":null,"topics":["algorithm","branch-and-bound","data-modeling","nearest-neighbors","r-tree","skyline-query"],"latest_commit_sha":null,"homepage":"","language":"Java","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/rnd-forests.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.md","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null}},"created_at":"2015-01-12T14:33:24.000Z","updated_at":"2025-05-16T09:15:53.000Z","dependencies_parsed_at":"2022-08-24T14:12:56.214Z","dependency_job_id":null,"html_url":"https://github.com/rnd-forests/skyline-query","commit_stats":null,"previous_names":[],"tags_count":6,"template":false,"template_full_name":null,"purl":"pkg:github/rnd-forests/skyline-query","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/rnd-forests%2Fskyline-query","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/rnd-forests%2Fskyline-query/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/rnd-forests%2Fskyline-query/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/rnd-forests%2Fskyline-query/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/rnd-forests","download_url":"https://codeload.github.com/rnd-forests/skyline-query/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/rnd-forests%2Fskyline-query/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":30359246,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-03-10T21:41:54.280Z","status":"ssl_error","status_checked_at":"2026-03-10T21:40:59.357Z","response_time":106,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 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":["algorithm","branch-and-bound","data-modeling","nearest-neighbors","r-tree","skyline-query"],"created_at":"2025-12-17T12:53:48.375Z","updated_at":"2026-03-10T22:37:13.083Z","avatar_url":"https://github.com/rnd-forests.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Spatial Skyline Query Algorithms\n\nA Java Implementation of Spatial Skyline Query Algorithms.\n\n## References\nAlgorithms are built based on descriptions in the following research papers:\n* [An Optimal and Progressive Algorithm for Skyline Queries](http://www.cs.ust.hk/~dimitris/publications.html) by Dimitris Papadias, Yufei Tao, Greg Fu, and Bernhard Seeger.\n* [Shooting Stars in the Sky: An Online Algorithm for Skyline Queries](http://www.informatik.uni-trier.de/~ley/pers/hd/k/Kossmann:Donald) by Donald Kossmann, Frank Ramsak, and Steffen Rost.\n\n## Algorithms\n* Branch and Bound Skyline (BBS) \n* Nearest Neighbor (NN)\n\n## Libraries\n* [RTree](https://github.com/davidmoten/rtree) by [Dave Moten](https://github.com/davidmoten).\n* [Java Standard Libraries - StdDraw](http://introcs.cs.princeton.edu/java/stdlib/StdDraw.java.html) by [Robert Sedgewick](http://www.cs.princeton.edu/~rs/) and [Kevin Wayne](http://www.cs.princeton.edu/~wayne/contact/).\n\n## Sample Data\n* [Data files](https://github.com/dkanellis/SkySpark/tree/master/data/datasets) are taken from the [SkySpark](https://github.com/dkanellis/SkySpark) repository of [Dimitris Kanellis](https://github.com/dkanellis).\n* [Data files](https://github.com/dkanellis/SkySpark/tree/master/data/datasets) are imported into MySQL database, and queried later for testing algorithms.\n\n## Demonstration\n##### GUI application\n![GUI application](http://i1368.photobucket.com/albums/ag182/vinhnguyenict/2015-09-01_1424_zpskdzddbbu.png)\n\n##### Skyline Visualization\n###### Anti-correlated 2D points dataset\n![Anti-correlated](http://i1368.photobucket.com/albums/ag182/vinhnguyenict/2015-09-13_1730_zpspo9lk2wn.png)\n\n###### Correlated 2D points dataset\n![Correlated](http://i1368.photobucket.com/albums/ag182/vinhnguyenict/2015-09-13_1733_zpsavcc0d2v.png)\n\n###### Uniformly Distributed 2D points dataset\n![Uniform](http://i1368.photobucket.com/albums/ag182/vinhnguyenict/2015-09-13_1734_zpsbpdfkaep.png)\n\n## License\nThis application is open-source released under [MIT license](http://opensource.org/licenses/MIT).\n\nAll 3rd party open sourced libraries distributed with this application are still under their own license.\n\n\n## Authors\n* [Vinh Nguyen](https://github.com/vinhnguyen-fly)\n* [Kien Hoang](https://github.com/goddesss)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frnd-forests%2Fskyline-query","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Frnd-forests%2Fskyline-query","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frnd-forests%2Fskyline-query/lists"}