1. A method for identifying advertisements responsive to one or more historical queries generated by a given user, the method comprising:
annotating a profile for a user with information associated with one or more historical queries generated by the user;
retrieving the profile associated with the user, the profile indicating one or more historical queries previously generated by the user;
identifying one or more advertisements responsive to a selected historical query maintained in the profile of the user;
identifying the one or more advertisements previously displayed to the user in response to the selected historical query; and
displaying the one or more advertisements not previously displayed to the user.
2. The method of claim 1 wherein annotating a profile for a user comprises annotating the profile with information indicating a query generated by the user.
3. The method of claim 1 wherein annotating a profile for a user comprises annotating the profile with information indicating a time at which a query was generated by the user.
4. The method of claim 1 wherein annotating a profile for a user comprises annotating the profile with information indicating one or more advertisements displayed in response to a query generated by the user.
5. The method of claim 1 wherein annotating a profile for a user comprises annotating the profile with information indicating a frequency with which a given query was generated by the user.
6. The method of claim 1 wherein identifying one or more advertisements responsive to a selected historical query comprises:
selecting a historical query from the profile of the user; and
identifying one or more advertisements previously displayed to the user in response to the selected historical query.
7. The method of claim 6 wherein selecting a historical query comprises selecting a historical query associated with a time value indicating an oldest historical query.
8. The method of claim 6 wherein selecting a historical query comprises selecting a historical query associated with a greatest frequency with which the user generated the historical query.
9. The method of claim 6 wherein selecting a historical query comprises selecting a query associated with a most recent time value.
10. The method of claim 1 wherein identifying one or more advertisements responsive to a selected historical query comprises:
identifying one or more advertisements associated with keywords matching one or more terms comprising the selected historical query; and
generating a result set comprising the one or more identified advertisements.
11. The method of claim 10 wherein identifying the one or more advertisements previously displayed to the user in response to the selected historical query comprises:
retrieving information from the user profile indicating the one or more advertisements previously displayed to the user; and
identifying the one or more advertisements in the result set previously displayed to the user through use of the retrieved information.
12. The method of claim 11 wherein identifying the one or more advertisements previously displayed to the user in response to the selected historical query comprises removing the one or more advertisements in the result set previously displayed to the user.
13. The method of claim 11 wherein retrieving information indicating one or more advertisements previously displayed to the user comprises:
retrieving unique identifiers associated with one or more advertisements previously displayed to the user; and
identifying the one or more advertisements in the result set with unique identifiers matching the retrieved unique identifiers.
14. A system for identifying advertisements responsive to one or more historical queries generated by a given user, the system comprising:
a search component operative to:
receive one or more user queries from a given user;
identify one or more advertisements responsive to the one or more queries received from the user; and
annotate a user profile associated with the user, the profile maintaining information associated with one or more historical queries generated by the user; and
a match component operative to:
retrieve the profile associated with the user, the profile indicating one or more historical queries previously generated by the user;
identify one or more advertisements responsive to a selected historical query maintained in the profile of the user; and
identify the one or more advertisements previously displayed to the user in response to the selected historical query.
15. The system of claim 14 wherein the search component is operative to annotate a profile for a user with information indicating a time at which the user generated a query.
16. The system of claim 14 wherein the search component is operative to annotate a profile for a user with information indicating one or more advertisements displayed in response to a query generated by the user.
17. The system of claim 14 wherein the search component is operative to annotate a profile for a user with information indicating a frequency with which the user generated a given query.
18. The system of claim 14 wherein the search component is operative to annotate a profile for a user with information indicating one or more advertisements displayed in response to a query generated by the user.
19. The system of claim 14 wherein the match component is operative to:
select a historical query from the profile of the user; and
identify one or more advertisements previously displayed to the user in response to the selected historical query.
20. The system of claim 19 wherein the match component is operative to select a historical query associated with a time value indicating an oldest historical query.
21. The system of claim 19 wherein the match component is operative to select a historical query associated with a greatest frequency with which the user generated the historical query.
22. The system of claim 19 wherein the match component is operative to select a query associated with a most recent time value.
23. The system of claim 14 wherein the match component is operative to:
identify one or more advertisements associated with keywords matching one or more terms comprising the selected historical query; and
generate a result set comprising the one or more identified advertisements.
24. The system of claim 23 wherein the match component is operative to:
retrieve information from the user profile indicating the one or more advertisements previously displayed to the user; and
identify the one or more advertisements in the result set previously displayed to the user through use of the retrieved information.
25. (canceled)
26. (canceled)
27. The system of claim 14 further comprising a distribution component operative to:
receive a result set comprising one or more advertisements not previously displayed to the user in response to a selected historical query; and
distribute the one or more advertisements comprising the result set to the user associated with the selected historical query.
28. (canceled)
29. (canceled)
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Method for controlling the fluid balance in an anode circuit of a fuel cell system, comprising:
determining a measured quantity characteristic of the amount of liquid andor changes in the amount of liquid in the fuel cell system, adjusting the cooling capacity of a condensing device andor adjusting the volume flow rate on the cathode side in response to the determined measured quantity,
cooling gases discharged on the cathode side in the condensing device in order to obtain a condensed liquid,
feeding the condensed liquid into the anode circuit of the fuel cell system.
2. Method for controlling the fluid balance in an anode circuit of a fuel cell system, comprising:
determining a measured quantity characteristic of the amount of liquid andor changes in the amount of liquid in the fuel cell system, adjusting the cooling capacity of at least one condensing device andor adjusting the volume flow rate on the cathode side in response to the determined measured quantity,
cooling gases discharged on the cathode side and the anode side in the at least one condensing device in order to obtain a condensed liquid or condensed liquids,
feeding the condensed liquid or liquids into the anode circuit of the fuel cell system.
3. Method according to claim 1, comprising:
heating the waste gases remaining after the condensation procedure at the fuel cell device of the fuel cell system,
passing the heated waste gases through a catalytic burner.
4. Method according to claim 1, comprising:
mounting a catalytic burner at a fuel cell device,
passing the waste gases remaining after the condensation procedure through the catalytic burner.
5. Fuel cell system, comprising:
a fuel cell device,
a device for determining a measured quantity characteristic of the amount of liquid andor changes of the amount of liquid in the fuel cell system,
at least one condensing device for obtaining a condensed liquid at least from gases discharged on the cathode side,
a controller for adjusting the cooling capacity of the at least one condensing device andor for adjusting the volume flow rate on the cathode side in response to the determined characteristic measured quantity, and
a device for feeding the condensed liquid to the anode circuit of the fuel cell system.
6. Fuel cell system according to claim 5, comprising:
a heat exchange device for heating gases at the fuel cell device.
7. Fuel cell system according to claim 5, comprising:
a catalytic burner provided at or in the fuel cell device.
8. Method according to claim 2, comprising:
heating the waste gases remaining after the condensation procedure at the fuel cell device of the fuel cell system,
passing the heated waste gases through a catalytic burner.
9. Method according to claim 2, comprising:
mounting a catalytic burner at a fuel cell device,
passing the waste gases remaining after the condensation procedure through the catalytic burner.
10. Fuel cell system according to claim 6, comprising:
a catalytic burner provided at or in the fuel cell device.