Table annotation

Table annotation is the task of annotating a table with terms/concepts from knowledge graph or database schema. Table annotation is typically broken down into the following five subtasks:

1. Cell Entity Annotation (CEA)
2. Column Type Annotation (CTA)
3. Column Property Annotation (CPA)
4. Table Type Detection
5. Row Annotation

The SemTab challenge is closely related to the Table Annotation problem. It is a yearly challenge which focuses on the first three tasks of table annotation and its purpose is to benchmark different table annotation systems.