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ViTA: A flexible CAD-tool-independent automatic grading platform for two-dimensional CAD drawings

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dc.contributor.authorYounes, Rabihen
dc.contributor.authorBairaktarova, Dianaen
dc.date.accessioned2022-02-06T15:30:58Zen
dc.date.available2022-02-06T15:30:58Zen
dc.date.issued2022-01-01en
dc.date.updated2022-02-06T15:30:56Zen
dc.description.abstractGrading engineering drawings takes a significant amount of an instructor’s time, especially in large classrooms. In many cases, teaching assistants help with grading, adding levels of inconsistency and unfairness. To help in grading automation of CAD drawings, this paper introduces a novel tool that can completely automate the grading process after students submit their work. The introduced tool, called Virtual Teaching Assistant (ViTA), is a CAD-tool-independent platform that can work with exported drawings originating from different CAD software having different export settings. Using computer vision techniques applied to exported images of the drawings, ViTA can not only recognize whether or not a two-dimensional (2 D) drawing is correct, but also offers the detection of many important orthographic and sectional view mistakes such as mistakes in structural features, outline, hatching, orientation, scale, line thickness, colors, and views. We show ViTA’s accuracy and its relevance in the automated grading of 2 D CAD drawings by evaluating it using 500 student drawings created with three different CAD software.en
dc.description.versionAccepted versionen
dc.format.extentPages 135-157en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1177/0306419020947688en
dc.identifier.eissn2050-4586en
dc.identifier.issn0306-4190en
dc.identifier.issue1en
dc.identifier.orcidBairaktarova, Diana [0000-0002-7895-8652]en
dc.identifier.urihttp://hdl.handle.net/10919/108150en
dc.identifier.volume50en
dc.languageenen
dc.language.isoenen
dc.publisherSAGEen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject09 Engineeringen
dc.subject13 Educationen
dc.titleViTA: A flexible CAD-tool-independent automatic grading platform for two-dimensional CAD drawingsen
dc.title.serialInternational Journal of Mechanical Engineering Educationen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherJournal Articleen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Engineering Educationen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen

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