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Bernhard Krabina

PROFILE

Bernhard Krabina

Contributed to SemanticMediaWiki by delivering schema updates, asset improvements, and feature enhancements across multiple releases. Updated the Schema.org vocabulary to version 28.0, improving data modeling and interoperability, and maintained SKOS namespace accuracy for reliable referencing. Enhanced map filtering in SemanticResultFormats using JavaScript and Leaflet.js, integrating new libraries and refining build configurations for better performance. Addressed calendar localization bugs to ensure accurate internationalization. Improved branding consistency by updating SVG assets and footer logos, focusing on asset management and vector graphics quality. Demonstrated strengths in backend and front-end development, documentation, and release management, with careful attention to schema definition and data quality.

Overall Statistics

Feature vs Bugs

57%Features

Repository Contributions

7Total
Bugs
3
Commits
7
Features
4
Lines of code
55,632
Activity Months3

Work History

May 2025

2 Commits • 1 Features

May 1, 2025

May 2025 Monthly Summary for SemanticMediaWiki/SemanticMediaWiki: Branding and asset quality improvements focused on consistency and version visibility. Key outcomes include a footer branding update with the new MediaWiki v1.43 logo and a fix for the rendering of the powered-by logo. Impact includes strengthened brand consistency across deployments, improved user trust, and reduced branding-related QA issues. Demonstrated skills include SVG asset management, front-end branding integration, and careful handling of path data in SVG assets.

March 2025

3 Commits • 2 Features

Mar 1, 2025

Monthly summary for 2025-03 focusing on delivered features, fixed bugs, impact, and skills demonstrated. Highlights include Schema.org vocabulary update and release notes for 5.0.0, a Map Filtering enhancement, and a bug fix for calendar localization. Key features delivered: - SemanticMediaWiki: Schema.org vocabulary update and 5.0.0 release notes. Updated release notes to reflect vocabulary change from version 14 to 28, included a SKOS vocabulary fix, and added new contributors and organizations to the release notes. Commit: 7031de4e072b072437a3bf0afe6392f14b3a2c05. - SemanticResultFormats: Map Filtering Enhancement. Enhanced map filtering by integrating new libraries and updating build targets, imports, and configurations to improve compatibility, performance, and stability. Commit: 48c9a17f337719ca72e9b42770a3dff14e99fd70. - SemanticResultFormats: Calendar localization bug fix. Fixed incorrect localized day name computation for the first day of week in SRF_Calendar.php, improving calendar accuracy and code style. Commit: 70264071782439447f291d893e41d2b5cf1c71fd. Major bugs fixed: - SRF_Calendar localization bug affecting the first day of week calculation, resolved with a clean fix and accompanying code style improvement. Commit: 70264071782439447f291d893e41d2b5cf1c71fd. Overall impact and accomplishments: - Increased interoperability and accuracy across core product areas: schema alignment with Schema.org, more reliable map-based features, and a bug-free calendar experience. The changes reduce integration friction for downstream apps and improve end-user consistency in calendar displays and map views. - Streamlined release notes and contributor visibility for 5.0.0, aiding stakeholder communication and onboarding for new contributors. Technologies/skills demonstrated: - Documentation and release management (RELEASE-NOTES updates, contributor attribution). - Build/config updates and integration of new libraries for improved performance (Map Filtering). - Localization/internationalization accuracy and code quality improvements (Calendar bug fix). - Versioning and SKOS vocabulary considerations for SEMANTIC vocabulary management.

November 2024

2 Commits • 1 Features

Nov 1, 2024

November 2024 monthly summary focusing on vocabulary updates and vocabulary namespace fixes for SemanticMediaWiki. Key features delivered: Schema.org 28.0 Vocabulary Update (schema.txt), enabling richer data representation and compatibility with latest schema types. Major bugs fixed: SKOS Core Namespace URI Fix (skos.txt) to ensure accurate vocabulary referencing. Impact: improved data quality, interoperability with external datasets, and more accurate search and indexing; ready for downstream integrations with minimal maintenance overhead. Technologies/skills: vocabulary management, schema maintenance, versioned updates, and CI-awareness (e.g., commits with [skip ci]).

Activity

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Quality Metrics

Correctness91.4%
Maintainability91.4%
Architecture88.6%
Performance88.6%
AI Usage20.0%

Skills & Technologies

Programming Languages

JavaScriptMarkdownPHPSVGText

Technical Skills

Asset ManagementBackend DevelopmentData ManagementData ModelingDocumentationFront-end DevelopmentJavaScriptLeaflet.jsRelease ManagementSchema DefinitionVector Graphics

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

SemanticMediaWiki/SemanticMediaWiki

Nov 2024 May 2025
3 Months active

Languages Used

TextMarkdownSVG

Technical Skills

Data ManagementData ModelingSchema DefinitionDocumentationRelease ManagementAsset Management

SemanticMediaWiki/SemanticResultFormats

Mar 2025 Mar 2025
1 Month active

Languages Used

JavaScriptPHP

Technical Skills

Backend DevelopmentFront-end DevelopmentJavaScriptLeaflet.js