Creating a Dataset Label

Function

This API is used to create a dataset label.

Debugging

You can debug this API through automatic authentication in or use the SDK sample code generated by API Explorer.

URI

POST /v2/{project_id}/datasets/{dataset_id}/data-annotations/labels

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

dataset_id

Yes

String

Dataset ID.

project_id

Yes

String

Project ID. For details about how to obtain a project ID, see Obtaining a Project ID and Name.

Request Parameters

Table 2 Request body parameters

Parameter

Mandatory

Type

Description

labels

No

Array of Label objects

List of labels to be created.

Table 3 Label

Parameter

Mandatory

Type

Description

attributes

No

Array of LabelAttribute objects

Multi-dimensional attribute of a label. For example, if the label is music, attributes such as style and artist may be included.

name

No

String

Label name.

property

No

LabelProperty object

Basic attribute key-value pair of a label, such as color and shortcut keys.

type

No

Integer

Label type. Options:

  • 0: image classification

  • 1: object detection

  • 3: image segmentation

  • 100: text classification

  • 101: named entity recognition

  • 102: text triplet relationship

  • 103: text triplet entity

  • 200: sound classification

  • 201: speech content

  • 202: speech paragraph labeling

  • 600: video labeling

Table 4 LabelAttribute

Parameter

Mandatory

Type

Description

default_value

No

String

Default value of a label attribute.

id

No

String

Label attribute ID. You can query the tag by invoking the tag list.

name

No

String

Label attribute name. The value contains a maximum of 64 characters and cannot contain the character. <>=&"'.

type

No

String

Label attribute type. Options:

  • text: text

  • select: single-choice drop-down list

values

No

Array of LabelAttributeValue objects

List of label attribute values.

Table 5 LabelAttributeValue

Parameter

Mandatory

Type

Description

id

No

String

Label attribute value ID.

value

No

String

Label attribute value.

Table 6 LabelProperty

Parameter

Mandatory

Type

Description

@modelarts:color

No

String

Default attribute: Label color, which is a hexadecimal code of the color. By default, this parameter is left blank. Example: #FFFFF0.

@modelarts:default_shape

No

String

Default attribute: Default shape of an object detection label (dedicated attribute). By default, this parameter is left blank. Options:

  • bndbox: rectangle

  • polygon: polygon

  • circle: circle

  • line: straight line

  • dashed: dotted line

  • point: point

  • polyline: polyline

@modelarts:from_type

No

String

Default attribute: Type of the head entity in the triplet relationship label. This attribute must be specified when a relationship label is created. This parameter is used only for the text triplet dataset.

@modelarts:rename_to

No

String

Default attribute: The new name of the label.

@modelarts:shortcut

No

String

Default attribute: Label shortcut key. By default, this parameter is left blank. For example: D.

@modelarts:to_type

No

String

Default attribute: Type of the tail entity in the triplet relationship label. This attribute must be specified when a relationship label is created. This parameter is used only for the text triplet dataset.

Response Parameters

Status code: 200

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

results

Array of BatchResponse objects

Response body for creating a label.

success

Boolean

Check whether the operation is successful. Options:

  • true: The operation is successful.

  • false: The operation is failed.

Table 8 BatchResponse

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

success

Boolean

Check whether the operation is successful. Options:

  • true: The operation is successful.

  • false: The operation is failed.

Example Requests

The following is an example of how to create a dataset label whose name is Cat and shape is bndbox for object detection by default.

{
  "labels" : [ {
    "name" : "Cat",
    "property" : {
      "@modelarts:color" : "#3399ff",
      "@modelarts:default_shape" : "bndbox"
    }
  } ]
}

Example Responses

Status code: 200

OK

{
  "success" : true
}

Status Codes

Status Code

Description

200

OK

401

Unauthorized

403

Forbidden

404

Not Found

Error Codes

See Error Codes.