METHODS AND APPARATUS FOR FILTERING SEARCH RESULTS

• US 20070185847A1
• Filed: 01/31/2007
• Published: 08/09/2007
• Est. Priority Date: 01/31/2006
• Status: Active Grant

• Current Assignee: Northwestern University, Perfect Market, Inc.
• Original Assignee: Media River, Inc.
• Inventors: Hammond, Kristian, Birnbaum, Lawrence, Budzik, Jerome, Crossen, Andrew, Sood, Sanjay
• Granted Patent: US 7,610,279 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/242 Query formulation
• CPC Class Codes: G06F 16/248 Presentation of query results
• CPC Class Codes: G06F 16/951 Indexing; Web crawling techniques
• CPC Class Codes: G06F 16/9535 Search customisation based on user profiles and personalisation
• CPC Class Codes: G06F 16/9538 Presentation of query results
• CPC Class Codes: Y10S 707/99934 Query formulation, input preparation, or translation
• CPC Class Codes: Y10S 707/99935 Query augmenting and refining, e.g. inexact access
• CPC Class Codes: Y10S 707/99936 Pattern matching access

Abstract

Methods and apparatus assessing, ranking, organizing, and presenting search results associated with a user'"'"'s current work context are disclosed. The system disclosed assesses, ranks, organizes and presents search results against a user'"'"'s current work context by comparing statistical and heuristic models of the search results to a statistical and heuristic model of the user'"'"'s current work context. In this manner, search results are assessed, ranked, organized, and/or presented with the benefit of attributes of the user'"'"'s current work context that are predictive of relevance, such as words in a user'"'"'s document (e.g., web page or word processing document) that may not have been included in the search query. In addition, search results from multiple search engines are combined into an organization scheme that best reflects the user'"'"'s current task. As a result, lists of search results from different search engines can be more usefully presented to the user.

Claims

1. A method of filtering search results, the method comprising:

determining a query based on a first aspect of a user context, the first aspect including data indicative of text being accessed by a user, the query being different than the user context;

receiving a plurality of search results from a search engine, the plurality of search results being based on the query;

comparing data indicative of the plurality of search results to data indicative of a second aspect of the user context to determine a plurality of scores associated with the plurality of search results, the second aspect of the user context including data indicative of at least one task in which the user is engaged out of a plurality of possible user tasks; and

filtering at least one of the plurality of search results from being displayed to the user based on at least a portion of the plurality of scores.

2. The method of claim 1, wherein the first aspect of the user context includes the data indicative of the at least one task.

3. The method of claim 1, wherein the second aspect of the user context includes the data indicative of the text being accessed by the user.

4. The method of claim 1, wherein the first aspect of the user context includes the second aspect of the user context.

5. The method of claim 1, wherein the first aspect of the user context is based on at least one of (a) a number of words in the text being accessed by the user, and (b) a number of sentences in the text being accessed by the user.

6. The method of claim 1, wherein the second aspect of the user context is based on at least one of (a) a location of the at least one predetermined word in the text being accessed by the user, (b) a style of the at least one predetermined word in the text being accessed by the user, (c) a presence of at least one specified word in the text being accessed by the user, (d) an absence of the at least one specified word in the text being accessed by the user, (e) metadata attributes of at least a portion of the text being accessed by the user, (f) a field presented by a computer application, (g) an attribute of information being presented in the computer application, (h) an element of the computer application visible to the user, (i) a document genre, (j) a document type, (k) a type associated with the computer application, (l) a method by which the user is accessing the computer application, (m) a role in an organization, (n) a type of the organization, (o) a property of the organization, (p) a stage in a task, (q) a stage in a workflow, (r) a type of task being supported by the computer application, (s) a stage in a task being executed by the computer application, (t) a pervious user behavior, (u) a topical area of interest, (v) a proportion of hyperlinked text to non-hyperlinked text, and (w) an average sentence length in the text being accessed by the user.

7. The method of claim 1, wherein the second aspect of the user context is based on at least five of (a) a location of the at least one predetermined word in the text being accessed by the user, (b) a style of the at least one predetermined word in the text being accessed by the user, (c) a presence of at least one specified word in the text being accessed by the user, (d) an absence of the at least one specified word in the text being accessed by the user, (e) metadata attributes of at least a portion of the text being accessed by the user, (f) a field presented by a computer application, (g) an attribute of information being presented in the computer application, (h) an element of the computer application visible to the user, (i) a document genre, (j) a document type, (k) a type associated with the computer application, (l) a method by which the user is accessing the computer application, (m) a role in an organization, (n) a type of the organization, (o) a property of the organization, (p) a stage in a task, (q) a stage in a workflow, (r) a type of task being supported by the computer application, (s) a stage in a task being executed by the computer application, (t) a pervious user behavior, (u) a topical area of interest, (v) a proportion of hyperlinked text to non-hyperlinked text, and (w) an average sentence length in the text being accessed by the user.

8. The method of claim 1, wherein the second aspect of the user context is based on (a) a style of the at least one predetermined word in the text being accessed by the user and (b) a type associated with a computer application.

9. The method of claim 1, including receiving a plurality of result models from the search engine, the plurality of result models including a plurality of terms associated with the plurality of search results and a plurality weights associated with the plurality of terms.

10. The method of claim 9, including comparing data indicative of the plurality of result models to data indicative of the second aspect of the user context to determine the plurality of scores associated with the plurality of search results.

11. The method of claim 1, including comparing data indicative of the plurality of search results to data indicative of at least one of first aspect of the user context and the second aspect of the user context to determine a plurality of organization schemes, the plurality of organization schemes grouping at least a portion of the plurality of search results into at least two genres.

12. The method of claim 11, wherein generating the display indicative of the ranked list of search results includes generating the display to be indicative of the plurality of organization schemes.

13. The method of claim 1, including filtering at least one of the plurality of search results from being displayed to the user based on at least a portion of the plurality of scores.

14. The method of claim 1, including:

comparing data indicative of at least one search result in the plurality of search results to data indicative of the query to determine a spam score, the spam score being based on at least one of a character length and a word length of a longest matching substring, the longest matching substring appearing in the at least one search result and the query;

comparing the spam score to a threshold; and

characterizing the at least one search result as potential spam if the spam score crosses the threshold.

15. The method of claim 1, including:

determining if a length associated with a document being accessed by the user exceeds a first threshold;

determining if a ratio of non-hyperlinked words to hyperlinked words in the document exceeds a second threshold; and

determining if a similarity score associated with at least two different segments of the document exceeds a third threshold.

16. The method of claim 1, including:

determining a second query from (i) at least one of first aspect of the user context and the second aspect of the user context and (ii) at least a portion of the plurality of search results; and

receiving a second plurality of search results from a second different search engine, the second plurality of search results being based on the second query.

17. A method of filtering search results, the method comprising:

determining a first query and a second query based on a user context, the user context including data indicative of text being accessed by a user, the first query being different than the user context, the second query being different than the user context;

receiving a first plurality of search results from a first search engine, the first plurality of search results being based on the first query;

receiving a second plurality of search results from a second different search engine, the second plurality of search results being based on the second query;

comparing data indicative of the first plurality of search results to data indicative of the user context to determine a first plurality of scores associated with the first plurality of search results;

comparing data indicative of the second plurality of search results to the data indicative of the user context to determine a second plurality of scores associated with the second plurality of search results;

filtering at least one of the first plurality of search results from being displayed to the user based on at least a portion of the first plurality of scores; and

filtering at least one of the second plurality of search results from being displayed to the user based on at least a portion of the second plurality of scores.

18. The method of claim 17, wherein the first query includes the second query.

19. The method of claim 17, wherein the user context is based on indicative of at least one task in which the user is engaged out of a plurality of possible user tasks.

20. The method of claim 17, wherein the user context is based on at least one of (a) a number of words in the text being accessed by the user, and (b) a number of sentences in the text being accessed by the user.

21. The method of claim 17, wherein the user context is based on at least one of (a) a location of the at least one predetermined word in the text being accessed by the user, (b) a style of the at least one predetermined word in the text being accessed by the user, (c) a presence of at least one specified word in the text being accessed by the user, (d) an absence of the at least one specified word in the text being accessed by the user, (e) metadata attributes of at least a portion of the text being accessed by the user, (f) a field presented by a computer application, (g) an attribute of information being presented in the computer application, (h) an element of the computer application visible to the user, (i) a document genre, (j) a document type, (k) a type associated with the computer application, (l) a method by which the user is accessing the computer application, (m) a role in an organization, (n) a type of the organization, (o) a property of the organization, (p) a stage in a task, (q) a stage in a workflow, (r) a type of task being supported by the computer application, (s) a stage in a task being executed by the computer application, (t) a pervious user behavior, (u) a topical area of interest, (v) a proportion of hyperlinked text to non-hyperlinked text, and (w) an average sentence length in the text being accessed by the user.

22. The method of claim 17, wherein the user context is based on at least five of (a) a location of the at least one predetermined word in the text being accessed by the user, (b) a style of the at least one predetermined word in the text being accessed by the user, (c) a presence of at least one specified word in the text being accessed by the user, (d) an absence of the at least one specified word in the text being accessed by the user, (e) metadata attributes of at least a portion of the text being accessed by the user, (f) a field presented by a computer application, (g) an attribute of information being presented in the computer application, (h) an element of the computer application visible to the user, (i) a document genre, (j) a document type, (k) a type associated with the computer application, (l) a method by which the user is accessing the computer application, (m) a role in an organization, (n) a type of the organization, (o) a property of the organization, (p) a stage in a task, (q) a stage in a workfiow, (r) a type of task being supported by the computer application, (s) a stage in a task being executed by the computer application, (t) a pervious user behavior, (u) a topical area of interest, (v) a proportion of hyperlinked text to non-hyperlinked text, and (w) an average sentence length in the text being accessed by the user.

23. The method of claim 17, wherein the user context is based on (a) a style of the at least one predetermined word in the text being accessed by the user and (b) a type associated with a computer application

24. The method of claim 17, including receiving a plurality of result models from the first search engine, the plurality of result models including a plurality of terms associated with the first plurality of search results and a plurality weights associated with the plurality of terms.

25. The method of claim 24, including comparing data indicative of the plurality of result models to data indicative of the user context to determine the first plurality of scores associated with the first plurality of search results.

26. The method of claim 17, including comparing data indicative of the first plurality of search results to data indicative of the user context to determine a plurality of organization schemes, the plurality of organization schemes grouping at least a portion of the first plurality of search results into at least two genres.

27. The method of claim 26, including generating a display indicative of the plurality of organization schemes.

28. An apparatus for filtering search results, the apparatus comprising:

a processor;

a memory device operatively coupled to the processor;

a user input device operatively coupled to the processor;

a network device operatively coupled to the processor; and

a display device operatively coupled to the processor;

wherein the memory device stores a software program to cause the processor to;

determine a query based on a first aspect of a user context, the first aspect including data indicative of text being accessed by a user in response to inputs entered via the user input device, the query being different than the user context;

receive a plurality of search results from a search engine via the network device, the plurality of search results being based on the query;

compare data indicative of the plurality of search results to data indicative of a second aspect of the user context to determine a plurality of scores associated with the plurality of search results, the second aspect of the user context including data indicative of at least one task in which the user is engaged out of a plurality of possible user tasks; and

filter at least one of the plurality of search results from being displayed to the user based on at least a portion of the plurality of scores.

29. The apparatus of claim 28, wherein the first aspect of the user context includes the second aspect of the user context.

30. The apparatus of claim 28, wherein the second aspect of the user context is based on at least five of (a) a location of the at least one predetermined word in the text being accessed by the user, (b) a style of the at least one predetermined word in the text being accessed by the user, (c) a presence of at least one specified word in the text being accessed by the user, (d) an absence of the at least one specified word in the text being accessed by the user, (e) metadata attributes of at least a portion of the text being accessed by the user, (f) a field presented by a computer application, (g) an attribute of information being presented in the computer application, (h) an element of the computer application visible to the user, (i) a document genre, (j) a document type, (k) a type associated with the computer application, (l) a method by which the user is accessing the computer application, (m) a role in an organization, (n) a type of the organization, (o) a property of the organization, (p) a stage in a task, (q) a stage in a workflow, (r) a type of task being supported by the computer application, (s) a stage in a task being executed by the computer application, (t) a pervious user behavior, (u) a topical area of interest, (v) a proportion of hyperlinked text to non-hyperlinked text, and (w) an average sentence length in the text being accessed by the user.

31. The apparatus of claim 28, wherein the second aspect of the user context is based on (a) a style of the at least one predetermined word in the text being accessed by the user and (b) a type associated with a computer application.

32. The apparatus of claim 28, wherein the software program is structured to cause the processor to compare data indicative of the plurality of search results to data indicative of at least one of first aspect of the user context and the second aspect of the user context to determine a plurality of organization schemes, the plurality of organization schemes grouping at least a portion of the plurality of search results into at least two genres.

33. A computer readable medium storing a software program to cause a computing device to:

determine a query based on a first aspect of a user context, the first aspect including data indicative of text being accessed by a user, the query being different than the user context;

receive a plurality of search results from a search engine, the plurality of search results being based on the query;

compare data indicative of the plurality of search results to data indicative of a second aspect of the user context to determine a plurality of scores associated with the plurality of search results, the second aspect of the user context including data indicative of at least one task in which the user is engaged out of a plurality of possible user tasks; and

filtering at least one of the plurality of search results from being displayed to the user based on at least a portion of the plurality of scores.

34. The computer readable medium of claim 33, wherein the first aspect of the user context includes the second aspect of the user context.

35. The computer readable medium of claim 33, wherein the second aspect of the user context is based on at least five of (a) a location of the at least one predetermined word in the text being accessed by the user, (b) a style of the at least one predetermined word in the text being accessed by the user, (c) a presence of at least one specified word in the text being accessed by the user, (d) an absence of the at least one specified word in the text being accessed by the user, (e) metadata attributes of at least a portion of the text being accessed by the user, (f) a field presented by a computer application, (g) an attribute of information being presented in the computer application, (h) an element of the computer application visible to the user, (i) a document genre, (j) a document type, (k) a type associated with the computer application, (l) a method by which the user is accessing the computer application, (m) a role in an organization, (n) a type of the organization, (o) a property of the organization, (p) a stage in a task, (q) a stage in a workflow, (r) a type of task being supported by the computer application, (s) a stage in a task being executed by the computer application, (t) a pervious user behavior, (u) a topical area of interest, (v) a proportion of hyperlinked text to non-hyperlinked text, and (w) an average sentence length in the text being accessed by the user.

36. The computer readable medium of claim 33, wherein the second aspect of the user context is based on (a) a style of the at least one predetermined word in the text being accessed by the user and (b) a type associated with a computer application.

37. The computer readable medium of claim 33, wherein the software program is structured to cause the computing device to compare data indicative of the plurality of search results to data indicative of at least one of first aspect of the user context and the second aspect of the user context to determine a plurality of organization schemes, the plurality of organization schemes grouping at least a portion of the plurality of search results into at least two genres.