{"id":19219885,"url":"https://github.com/pvigier/preprocessings","last_synced_at":"2025-06-13T01:32:24.912Z","repository":{"id":133057862,"uuid":"98125929","full_name":"pvigier/preprocessings","owner":"pvigier","description":"Demo for the part 2 of the tutorial on pychain","archived":false,"fork":false,"pushed_at":"2018-04-27T21:34:03.000Z","size":3,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-02-23T09:17:20.545Z","etag":null,"topics":["cost-function","gradient-descent","preprocessing","visualization"],"latest_commit_sha":null,"homepage":"","language":"Python","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/pvigier.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":"2017-07-23T21:16:37.000Z","updated_at":"2018-04-27T21:34:04.000Z","dependencies_parsed_at":"2023-03-10T15:53:36.371Z","dependency_job_id":null,"html_url":"https://github.com/pvigier/preprocessings","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/pvigier/preprocessings","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pvigier%2Fpreprocessings","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pvigier%2Fpreprocessings/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pvigier%2Fpreprocessings/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pvigier%2Fpreprocessings/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/pvigier","download_url":"https://codeload.github.com/pvigier/preprocessings/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/pvigier%2Fpreprocessings/sbom","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":259561814,"owners_count":22876886,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":["cost-function","gradient-descent","preprocessing","visualization"],"created_at":"2024-11-09T14:33:11.253Z","updated_at":"2025-06-13T01:32:24.877Z","avatar_url":"https://github.com/pvigier.png","language":"Python","funding_links":[],"categories":[],"sub_categories":[],"readme":"# preprocessings\n\nTwo demos shown in the [part 2](https://pvigier.github.io/2017/08/13/pychain-part2-mnist.html) of my tutorial on pychain.\n\nThe file preprocessings.py allows to visualize the effect of preprocessings on a simple dataset.\n\n![Visualization of the preprocessings](https://pvigier.github.io/media/img/part2/preprocessings.png)\n\nThe file cost_function.py create an animation of the first steps of the gradient descent algorithm for the cost functions obtained with a unpreprocessed dataset and a preprocessed dataset.\n\n![Gradient descent](https://pvigier.github.io/media/img/part2/cost_function.gif)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpvigier%2Fpreprocessings","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpvigier%2Fpreprocessings","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpvigier%2Fpreprocessings/lists"}