This topic lists frequently asked questions (FAQs) about iTAG and provides their solutions.
Billing
Q: Is PAI-iTAG free? How is it billed?
iTAG platform: The iTAG platform is free of charge if you use your own team to perform manual annotation.
Object Storage Service (OSS): iTAG depends on Alibaba Cloud Object Storage Service (OSS) to run. Therefore, fees for OSS storage and data read/write traffic are charged separately. For more information, see the OSS Billing overview.
Intelligent annotation service: The intelligent annotation service, which is provided for templates such as image-to-text and image-text description, is currently free. You will be notified if this service becomes a paid feature in the future.
Manual annotation outsourcing service: If you want to delegate data annotation to Alibaba Cloud's professional team, you can submit a ticket to contact the PAI team to obtain this paid service.
User permissions
Q: The console shows that I do not have iTAG permissions. How do I grant them?
You must add a role in the workspace and then grant permissions in People Management in iTAG. For more information, see Assign roles to members.
Q: How do I add a team member, such as a RAM user, as an annotator?
Log on to the PAI console with your Alibaba Cloud account and add the RAM user as a member in Workspace Management. Then, go to Users in iTAG and select Add Account > Add Workspace Account. You can then find the RAM user and add them as an annotator or administrator. For more information, see Assign roles to members.
Q: Why can't I find my RAM user when I try to add a workspace internal account?
You must first add the RAM user as a member of the current PAI workspace. After the user is added, you can find the user in the list. For more information, see the Configure member roles section of Manage a workspace.
Q: How do I add team members, users from other companies, or individuals as annotators?
To add team members, users from other companies, or individuals as annotators, follow the steps in the Add a role for another Alibaba Cloud account section of Add a role.
Q: Can annotators download raw data?
The iTAG platform does not provide a direct download feature for raw data to ensure data security. Data access permissions are determined by the access control policy of the storage location, such as OSS. You can configure OSS access policies to manage data access.
Data reading and loading
Q: How do I resolve an iTAG content loading failure?
If a resource in iTAG fails to load during annotation, you must enable cross-origin access for the OSS data source. To enable cross-origin access for OSS, perform the following steps.
Go to the details page of a bucket.
Log on to the OSS console.
In the left-side navigation pane, click Buckets.
On the Buckets page, find the OSS bucket that you want to manage and click the bucket name.
On the bucket details page, click Content Security and configure settings in the Cross-Origin Resource Sharing (CORS) section.
Click Create Rule. In the Create CORS Rule panel, set the cross-origin access parameters.
Click OK.
Q: When I create an annotation task, the dataset format fails to parse. What should I do?
When you create an annotation task on the iTAG page, the following error is reported when you select a registered dataset: Failed to parse the dataset format. Select a dataset with the correct format. To resolve this issue, perform the following steps:
Only datasets in the iTAG data annotation format are supported. You must create a dataset by following the method for creating iTAG datasets. For more information, see Create a dataset for data annotation.
Ensure that the format of the created dataset is correct. For more information, see Annotation file formats.
Q: When creating an iTAG dataset, why OSS bucket is not available, or why is the file path drop-down list empty?
Verify the following:
Region consistency: Ensure that your current PAI-iTAG workspace is in the same region as your OSS bucket. You can switch regions in the upper-left of the PAI console.
Check the current region where PAI-ITAG is located:
Check the region where OSS Bucket is located:
Path and file requirements: iTAG does not support reading data directly from the root directory of an OSS bucket. You must store data files in a subdirectory of the bucket and enter the subdirectory name in the OSS File Path field. In addition, dataset import requires a manifest, such as a .csv or .manifest file, instead of a direct path to a folder of raw images or videos.
Q: Does iTAG support using local data directly for annotation, for example, by mounting a local NAS?
No. iTAG requires that input data is stored in Alibaba Cloud OSS. You must first upload your local data, including data from a NAS, to OSS. Then, you can create a dataset in iTAG that points to this OSS data to start an annotation task.
Q: When I annotate a dataset in iTAG, the error "Cross-domain request failed. The image cannot be displayed." is reported.
This error can occur when you switch to the second image of a sub-task while annotating a dataset in iTAG.
Solution: Configure a cross-origin rule for the OSS bucket that you are using. Add the PAI domain name https://pai.console.alibabacloud.com to the allowed origins.
