# Communities

Communities are sets of people grouped by a common theme. Such themes are automatically identified by conceptual analysis and clustering of both agents and profiles, and patterns of usage of those individuals.

Communities allow users to find experts in their fields, and to find out what other people in similar fields are working on. This approach can help promote collaboration and resource sharing.

You might also want to use communities in a more social context to allow users to find like-minded people.

## Uses of Communities

Here are a few examples of uses for communities that allow you to match users with similar interests:

- find potential co-authors for an academic paper.

- find potential colleagues for a new work project.

- target advertising to groups of like-minded users.

- find users with similar interests to start a new organization or club.

- match potential couples on a dating Web site.

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