| 摘要 |
A content item categorizer system retrieves content items from Internet sources. If a retrieved content item includes sufficient information for traditional categorization methods, then the system assigns one or more categories to the content item using such traditional methods. The system creates a metadata model, based on information about traditionally-categorized content items, that maps at least hashtags from the content items to one or more content categories. When the system retrieves a sparse-info item that does not include sufficient information for traditional categorization, the system applies the metadata model to categorize the content item using at least hashtags in the sparse-info item. The metadata model may also include information indicating mappings between categories and coincidence of hashtags and additional content item attributes. Also, the metadata model may provide information for categorizing sparse-info items based on multiple hashtags in the sparse-info item metadata. |
| 主权项 |
1. A method comprising:
using a first categorizer, categorizing a set of objects into a plurality of categories; wherein the set of objects includes a subset of categorized objects that are associated with a particular hashtag; after the first categorizer has categorized the set of objects into the plurality of categories, generating a metadata model based, at least in part, on:
the categories to which the first categorizer has assigned each object of the set of objects, andhashtags associated with each object of the set of objects; wherein, the metadata model comprises mappings of hashtags to categories of the plurality of categories; wherein, the mappings in the metadata model include one or more mappings that map the particular hashtag to one or more categories; wherein the one or more mappings are created based on the categories to which the first categorizer has assigned objects in the subset of categorized objects; obtaining a particular object that is associated with the particular hashtag; and using a second categorizer, different than the first categorizer, to categorize the particular object based, at least in part, on the one or more mappings, in the metadata model, that map the particular hashtag to the one or more categories; wherein the method is performed by one or more computing devices. |
