System and method for identifying useful content in a knowledge repository

• US 7,016,889 B2
• Filed: 01/30/2003
• Issued: 03/21/2006
• Est. Priority Date: 01/30/2003
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Bazoon, Mehdi
• Primary Examiner(s): Starks, Jr., Wilbert
• Application Number:
  US10/355,498
• Publication Number:
  US 20040153962A1
• Time in Patent Office: 1,146 Days
• Field of Search: 706/48, 707/100, 707/200
• US Class Current: 706/48
• CPC Class Codes: G06F 16/34 Browsing; Visualisation therefor
• CPC Class Codes: G06F 16/93 Document management systems

Abstract

A system and method is provided for identifying useful content in a knowledge repository accessed by a plurality of users. The system and method includes the operation of identifying each unique user that accesses a document in the knowledge repository. Another operation is tracking an amount of time each unique user has a document open to create a set of document open time values. Document usefulness is then determined based on a comparison of the document open time values for the unique users.

Claims

1. A method for identifying useful content in a knowledge repository accessed by a plurality of users, comprising the steps of:

identifying each unique user that accesses a document in the knowledge repository;

tracking an amount of time each unique user has a document open to create a set of document open time values; and

determining document usefulness based on a comparison of the document open time values for the unique users.

2. A method as in claim 1, further comprising the step of determining document usefulness based on an individual document open time value as compared to the set of document open time values.

3. A method as in claim 1, further comprising the step of selecting a time value reference point from the set of document open time values to indicate that a document opened by a unique user is useful.

4. A method as in claim 3, further comprising the step of comparing the amount of time a document has been open to the time value reference point to determine that the document is useful.

5. A method as in claim 4, further comprising the step of determining that a document is useful if the document is within a standard deviation from the time value reference point.

6. A method as in claim 1, further comprising the step of determining the usefulness of a document using a time value reference point that is the median of the set of document open time values.

7. A method as in claim 1, further comprising the step of determining a document is more useful than other documents based on the document that was opened by the largest number of unique users for an amount of time that indicates the document was useful.

8. A method for identifying useful content in a knowledge repository accessed by a plurality of users, comprising the steps of:

identifying each unique user that accesses a document in the knowledge repository;

tracking a document open time for each unique user who opens a document to create a set of document open time values;

selecting a time value reference point for the set of document open time values, which time value reference point indicates that a document opened by a unique user is useful;

comparing the document open time for the document to the time value reference point; and

determining document usefulness based on a difference between the document open time and the time value reference point.

9. A method as in claim 8, further comprising the step of determining that a document is useful if the document is within one standard deviation from the time value reference point.

10. A method as in claim 8, further comprising the step of determining the usefulness of a document using a time value reference point that is the median of the set of document open time values.

11. A method as in claim 10, further comprising the step of determining document usefulness using the following formula:

$u_i=\frac{1}{1+{\left(\frac{t_i-M<br><br>\left(T\right)}{S}\right)}^2}$

where;

u_i is a usefulness indicator of document opened at time i;

t is a duration the document was open;

M(T) is a median time duration that the document has been open; and

S is a standard deviation of time duration that the document has been open.

12. A method as in claim 10, further comprising the step of determining the document usefulness when the document has been opened N number of time using the following formula:

$U=\frac{1}{n-1}<br><br>\underset{i}{\overset{n}{\sum <br><br>}}<br><br><br><br>u_i\times <br><br>W_u$

where;

U is the final usefulness indicator of a document;

N is the total number of times a document has been opened;

U_i is the usefulness indicator of the document at time I; and

W_u is the weight of document U.

13. A method for identifying useful content in a knowledge repository accessed by a plurality of users, comprising the steps of:

identifying each unique user that accesses a document in the knowledge repository;

tracking a document open time that each unique user has the document open to create a set of document open time values;

finding a median time value from the set of document open time values to indicate that a document opened by a unique user is useful; and

calculating a time difference between the open time and the median time value; and

determining document usefulness based on whether the document time difference is within a standard deviation from the median time value.

14. A method for identifying useful content in a knowledge repository accessed by a plurality of users, comprising the steps of:

identifying each unique user that accesses a document in the knowledge repository;

tracking an amount of time each unique user has the document open to create a set of document open time values; and

determining document usefulness based on whether a substantial portion of the document was read by the user as indicated by the amount of time each unique user has the document open.

15. The method as in claim 14, wherein the step of determining document usefulness based on whether a substantial portion of a document was read, further comprises the step of tracking the maximum and minimum document open time values.

16. The method as in claim 14, further comprising the step of determining that a document is more useful because it is ranked as more useful by users in search ratings as compared to other documents in the knowledge repository.

17. The method as in claim 14, further comprising the step of determining that a document is more useful because it is ranked as more useful by users in search ratings for a specific search topic as compared to other documents in the knowledge repository.

18. The method as in claim 14, further comprising the step of determining that a document is more useful because a large number of unique users have opened the document as compared to other documents in the knowledge repository.

19. The method as in claim 14, further comprising the step of using user feedback received from users'"'"' and document open times to determine whether a document is relevant.

20. A system for identifying useful content accessed by a plurality of users, comprising:

a knowledge repository configured to contain documents which can be accessed by the plurality of users;

a web interface configured to communicate with users and identify each unique user that accesses a document in the knowledge repository;

a document management module configured to track an amount of time each unique user has a document open to create a set of document open time values; and

a document usefulness process configured to determine document usefulness based on a comparison of the document open time values for the unique users.

21. A system as in claim 20, wherein the document usefulness process determines document usefulness based on an individual document open time value as compared to the set of document open time values.

22. A system as in claim 20, wherein the document usefulness process is configured to select a time value reference point for the set of document open time values to indicate that a document opened by a unique user is useful.

23. A system as in claim 22, wherein the time value reference point is the median of the set of document open time values.

24. A system for identifying useful content accessed by a plurality of users, comprising:

a knowledge repository means for storing documents to be accessed by the plurality of users;

an interface means for communicating with users and identifying each unique user that accesses a document in the knowledge repository;

a management means for tracking an amount of time each unique user has a document open to create document open time values; and

a usefulness means for determining document usefulness based on an individual document open time value as compared to the document open time values for the unique users.