Here, we present a new method for evaluating questions on chemical reactions in the context of remote education. This method can be used when binary grading is not sufficient as some tolerance may be acceptable. In order to determine a grade, the developed workflow uses the pairwise similarity assessment of two considered reactions, each encoded by a single molecular graph with the help of the Condensed Graph of Reaction (CGR) approach. This workflow is part of the ChemMoodle project and is implemented as a Moodle Plugin. It uses the Chemdoodle engine for reaction drawing and visualization and communicates with a REST server calculating the similarity score using ISIDA fragment descriptors. The plugin is open-source, accessible in GitHub ( https://github.com/Laboratoire-de-Chemoinformatique/moodle-qtype_reacsimilarity ) and on the Moodle plugin store ( https://moodle.org/plugins/qtype_reacsimilarity?lang=en ). Both similarity measures and fragmentation can be configured. Scientific contribution This work introduces an open-source method for evaluating chemical reaction questions within Moodle using the CGR approach. Our contribution provides a nuanced grading mechanism that accommodates acceptable tolerances in reaction assessments, enhancing the accuracy and flexibility of the grading process.

中文翻译：

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在 Moodle 插件中实现化学软评分系统：反应处理


在这里，我们提出了一种在远程教育背景下评估化学反应问题的新方法。当二进制分级不够时，可以使用此方法，因为某些公差可能是可以接受的。为了确定等级，开发的工作流程使用两个所考虑的反应的成对相似性评估，每个反应在反应简明图 (CGR) 方法的帮助下由单个分子图编码。此工作流程是 ChemMoodle 项目的一部分，并作为 Moodle 插件实现。它使用 Chemdoodle 引擎进行反应绘图和可视化，并与 REST 服务器通信，使用 ISIDA 片段描述符计算相似性得分。该插件是开源的，可以在 GitHub (https://github.com/Laboratoire-de-Chemoinformatique/moodle-qtype_reacsimilarity) 和 Moodle 插件商店 (https://moodle.org/plugins/qtype_reacsimilarity?lang=恩）。相似性度量和碎片都可以配置。科学贡献 这项工作介绍了一种使用 CGR 方法评估 Moodle 中化学反应问题的开源方法。我们的贡献提供了一种细致入微的分级机制，可适应反应评估中可接受的公差，从而提高分级过程的准确性和灵活性。