Introduction to Data Management

Dataset Types

ModelArts supports datasets of images, audio, text, and other types for the following purposes:

• Images
  • Image classification: identifies a class of objects in images.
  • Object detection: identifies the position and class of each object in an image.
  • Image segmentation: identifies the outline of each object in an image.
• Audio
  • Sound classification: classifies and identifies different sounds.
  • Speech labeling: labels speech content.
  • Speech paragraph labeling: segments and labels speech content.
• Text
  • Text classification: assigns labels to text according to its content.
  • Named entity recognition: assigns labels to named entities in text, such as time and locations.
  • Text triplet: assigns labels to entity segments and entity relationships in the text.
• Others
  • Free format: manages data in any format. Labeling is not available for data of the free format type. The free format type is applicable to scenarios where labeling is not required or developers customize labeling. If your dataset needs to contain data in multiple formats or your data format does not meet the requirements of other types of datasets, you can select a dataset in free format.
    Figure 1 Example of a dataset in free format
    

Dataset Management Process and Functions

Functions Supported by Different Types of Datasets

Different types of datasets support different functions. For details, see Table 2.