Method of controlling a video conference

1. A method of controlling a video conference with two or more participants, the method comprising:

dynamically determining a topic of the video conference;

accessing a participant data base including associations of one or more of the participants with one or more respective attributes;

mapping the determined topic to one or more of the one or more respective attributes;

selecting from the one or more participants associated with the one or more respective attributes one or more participants who are associated with the determined topic according to said mapping; and

displaying one or more of the selected participants on a screen.

2. The method of claim 1 , comprising:

monitoring a voice traffic exchanged between the two or more participants during the video conference;

converting the monitored voice traffic to a sequence of textual entities; and

extracting keywords from the sequence of textual entities for determination of the topic of the video conference.

3. The method of claim 2 , comprising:

establishing a dynamic statistics of the keywords;

deducing the topic of the video conference from the established dynamic statistics of the keywords.

4. The method of claim 1 , comprising:

determining the topic of the video conference based on a pre-defined agenda of the video conference.

5. The method of claim 1 , comprising:

determining a change of the topic of the video conference; and

continuously adapting the display of the one or more of the selected participants on the screen corresponding to the change.

6. The method of claim 1 , comprising:

automatically and/or manually generating the participant data base, the one or more respective attributes referring to a skill and/or a task of the respective participants.

7. The method of claim 1 , comprising:

displaying simultaneously at least one speaking participant of the video conference and all of the selected participants on the screen, each in a separate window.

8. The method of claim 1 , comprising:

storing one or more pre-defined attributes in a directory;

upon a participant joining the video conference, providing the joining participant with a selection menu for selecting one or more of the pre-defined attributes from the directory as being associated with the joining participant; and

storing an entry in the participant data base, the entry comprising an association of the joining participant with the selected one or more attributes.

9. A video conference server for controlling a video conference with two or more participants, the video conference server comprising:

a control unit adapted to dynamically determine a topic of the video conference;

access a participant data base comprising associations of one or more of the participants with one or more respective attributes;

map the determined topic to one or more of the one or more respective attributes;

select from the one or more participants associated with the one or more respective attributes one or more participants who are associated with the determined topic according to said mapping; and

control the display of one or more of the selected participants on a screen.

10. A non-transitory computer readable medium carrying instructions for controlling a video conference with two or more participants, when executed by a video conference server by:

dynamically determining a topic of the video conference;

accessing a participant data base comprising associations of one or more of the participants with one or more respective attributes;

mapping the determined topic to one or more of the one or more respective attributes;

selecting from the one or more participants associated with the one or more respective attributes one or more participants who are associated with the determined topic according to said mapping; and

triggering the display of one or more of the selected participants on a screen.