Methods and apparatus to improve usage crediting in mobile devices

1. A method, comprising:

identifying, by executing an instruction with a processor, a first request having a first source port number, from a device;

determining, by executing an instruction with a processor, whether a second request, having a second source port number, is within a threshold number of ports from the first source port number;

grouping, by executing an instruction with a processor, the first and the second requests as a first session when the second source port number is within the threshold number of ports from the first source port number; and

generating, by executing an instruction with a processor, session windows, the session windows including the threshold number of ports, wherein the session windows are applied to lowest and highest source port numbers associated with a current session.

2. The method as defined in claim 1 , further including identifying an application associated with the first session.

3. The method of claim 2 , further including identifying the application as a first application when a user agent of the first request matches a first application pattern associated with the first application.

4. The method of claim 3 , wherein, when the user agent of the first request does not match an application pattern associated with any application and a uniform resource locator (URL) matches the first application pattern associated with the first application, identifying the application as the first application.

5. The method of claim 2 , further including crediting use of the application during the first session.

6. The method as defined in claim 1 , further including determining whether a third request, having a third port number, is at least one of: (1) within a lower session window from the lower of the first and the second source port number, (2) within an upper session window from the higher of the first and the second source port number.

7. The method as defined in claim 6 , further including grouping the third request in the first session.

8. The method of claim 1 , wherein requests are gathered on a proxy server.

9. The method of claim 8 , wherein the proxy server is intermediate to the device associated with a panelist generating requests and media provider providing the media to the device.

10. The method of claim 1 , further including associating an identifier of the first session with the first and the second request.

11. An apparatus, comprising:

a session identifier to:

identify a first request having a first source port number, from a device;

determine whether a second request, having a second source port number, is within a threshold number of ports from the first source port number;

group the first and the second requests as a first session when the second source port number is within the threshold number of ports from the first source port number; and

a session classifier to:

generate session windows, the session windows including the threshold number of ports, wherein the session windows are applied to lowest and highest source port numbers associated with a current session, wherein at least one of the session identifier or the session classifier is implemented by a logic circuit.

12. The apparatus as defined in claim 11 , further including an application identifier to identify an application associated with the first session.

13. The apparatus of claim 12 , wherein the application identifier is to identify the application as a first application when a user agent of the first request matches a first application pattern associated with the first application.

14. The apparatus of claim 13 , wherein, when the user agent of the first request does not match an application pattern associated with any application and a uniform resource locator (URL) matches the first application pattern associated with the first application, the application identifier is to identify the application as the first application.

15. The apparatus of claim 12 , further including a creditor to credit use of the application during the first session.

16. The apparatus as defined in claim 12 , wherein the session identifier is to determine whether a third request, having a third port number, is at least one of: (1) within a lower session window from the lower of the first and the second source port number, (2) within an upper session window from the higher of the first and the second source port number.

17. The apparatus as defined in claim 16 , wherein the session identifier is to group the third request in the first session.

18. A non-transitory computer readable medium comprising instructions that, when executed, cause a machine to, at least:

identify a first request having a first source port number, from a device;

determine whether a second request, having a second source port number, is within a threshold number of ports from the first source port number;

group the first and the second requests as a first session when the second source port number is within the threshold number of ports from the first source port number; and

generate session windows, the session windows including the threshold number of ports, wherein the session windows are applied to lowest and highest source port numbers associated with a current session.

19. The non-transitory computer readable medium as defined in claim 18 , further including instructions that, when executed, cause the machine to identify an application associated with the first session.

20. The non-transitory computer readable medium as defined in claim 19 , further including instructions that, when executed, cause the machine to identify the application as a first application when a user agent of the first request matches a first application pattern associated with the first application.

21. The non-transitory computer readable medium as defined in claim 20 , further including instructions that, when executed, cause the machine to identify the application as the first application when the user agent of the first request does not match an application pattern associated with any application and a uniform resource locator (URL) matches the first application pattern associated with the first application.

22. The non-transitory computer readable medium as defined in claim 19 , further including instructions that, when executed, cause the machine to credit use of the application during the first session.

23. The non-transitory computer readable medium as defined in claim 19 , further including instructions that, when executed, cause the machine to determine whether a third request, having a third port number, is at least one of: (1) within a lower session window from the lower of the first and the second source port number, (2) within an upper session window from the higher of the first and the second source port number.

24. The non-transitory computer readable medium as defined in claim 23 , wherein a session identifier is to group the third request in the first session.

25. An apparatus, comprising:

at least one memory;

instructions in the apparatus; and

processor circuitry to execute the instructions to:

identify a first request having a first source port number, from a device;

determine whether a second request, having a second source port number, is within a threshold number of ports from the first source port number;

group the first and the second requests as a first session when the second source port number is within the threshold number of ports from the first source port number; and

generate session windows, the session windows including the threshold number of ports, wherein the session windows are applied to lowest and highest source port numbers associated with a current session.

26. The apparatus as defined in claim 25 , wherein the processor circuitry is to identify an application associated with the first session.

27. The apparatus of claim 26 , wherein the processor circuitry is to identify the application as a first application when a user agent of the first request matches a first application pattern associated with the first application.

28. The apparatus of claim 27 , wherein, when the user agent of the first request does not match an application pattern associated with any application and a uniform resource locator (URL) matches the first application pattern associated with the first application, the processor circuitry is to identify the application as the first application.

29. The apparatus of claim 26 , wherein the processor circuitry is to credit use of the application during the first session.

30. The apparatus as defined in claim 25 , wherein the processor circuitry is to determine whether a third request, having a third port number, is at least one of: (1) within a lower session window from the lower of the first and the second source port number, (2) within an upper session window from the higher of the first and the second source port number.

31. The apparatus as defined in claim 30 , wherein the processor circuitry is to group the third request in the first session.