FAQs & Troubleshooting

Frequently Asked Questions about Ango Hub

For more troubleshooting steps, please visit the pages under the "Troubleshooting" heading in the page list on the left.

Projects

What's a project?

How do I create a new project?

How do I delete a project?

Labeling

How do I annotate audio?

How do I annotate images?

How do I annotate PDFs?

How do I annotate text?

What labeling tools are available in Ango Hub?

How can I view an object's "objectId" when selecting an annotation?

Either right-click on the annotation, click on the three dots, and click on "Copy Object ID", or when in the labeling editor, click on the Quick Settings toggle () and enable Show Annotation ID on Hover to see the ID when hovering over the object.

Can I use rotating bounding boxes in videos? Sadly this feature is not available yet. You may use polygons or segmentations as an alternative for now.

I am not seeing the "Submit" button. Instead, I see a button saying "Un-assign me". This happens because, even though you have already annotated this task, as a result of the project's workflow, you have been assigned to annotate it again as part of the consensus calculation, or to review your own task, which is not allowed. Please click on "Un-assign me" and the task will be unassigned from you and put back in the queue for other project members to annotate or review.

Reviewing

How do I review someone's labeling task?

Plugins

I'm uploading assets with the File Explorer plugin, but I don't want to upload an asset if it's already been uploaded before. How can I do that? There is a parameter called "prevent_duplicates" in the Config JSON of the File Explorer plugin. Setting it to true will ensure duplicates are not uploaded.

How do I know whether a plugin is live or not? There is a small button which will be red or green according to the plugin's status. In the plugin list in your project, if the light next to "Live" is green, the plugin is live. () Otherwise, if it's red, it's not live.

Who can I contact if a plugin goes down? In the Plugin Directory, and in the plugin's Run Dialog, you can see the email of the person who created and maintains the plugin. It's in the bottom-right corner of the plugin's icon. You may contact them.

Performance

I'm experiencing poor performance of the tool. Where can I know more? Check out the Performance page.

Assets

What's an asset?

How do I import assets to label into Ango Hub?

What file types does Ango Hub support?

What's the difference between assets and annotations?

Do I have to convert PDFs to images before labeling? No. Ango Hub supports native PDF annotation.

Can I directly annotate data I have stored on cloud storage services? Yes. A full guide on how to do so is here.

Help! I tried to load files from a bucket but I can't open any of the files in the editor, it gives me a "Sorry, the data couldn't be loaded properly." Most likely, it's a CORS error. Please set the bucket's CORS policy correctly as outlined in this page and try opening the asset again. See this page for more information.

Importing and Exporting Assets and Annotations

How do I import existing annotations (pre-labels) to Ango Hub?

I get a "0 Tasks Labeled" alert when trying to upload pre-labels. Please see this page.

Workflow

What happens when a task is sent back to the same stage? It's assigned to the same user who originally labeled/reviewed it in that stage, and marked for labeling/reviewing again.

Profile

How do I change my display name?

Instructions

How can I see instructions without starting to label? From the Samples tab, click on Instructions.