CONSISTENT USER EXPERIENCE IN INFORMATION RETRIEVAL SYSTEMS

• US 20090055360A1
• Filed: 08/19/2008
• Published: 02/26/2009
• Est. Priority Date: 08/20/2007
• Status: Active Grant

• Current Assignee: Nexidia Incorporated (Nice Ltd)
• Original Assignee: Nexidia Incorporated (Nice Ltd)
• Inventors: Morris, Robert W., Gavalda, Marsal
• Granted Patent: US 8,429,171 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/68 Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually

Abstract

An information retrieval system for searching a corpus is configured to operate in a manner that optimizes the consistency of a user experience given a subset of a corpus and a search query.

Claims

1. An information retrieval system for searching a corpus, the information retrieval system being configured to:

operate in a manner that optimizes the consistency of a user experience given a subset of a corpus and a search query.

2. The method of claim 1, wherein the system is further configured to:

generate a confidence score for putative hits from the retrieval system; and

display results above a threshold to maintain consistency according to a consistency criterion.

3. The method of claim 2, wherein the consistency criterion comprises a constant number of false alarms.

4. The method of claim 2, wherein the consistency criterion comprises a constant false alarm rate.

5. The method of claim 2, wherein the consistency criterion comprises a constant number of true positives.

6. The method of claim 2, wherein the consistency criterion comprises a constant precision value.

7. The method of claim 2, wherein the consistency criterion comprises a constant number of misses.

8. The method of claim 2, wherein the consistency criterion comprises a constant recall value.

9. The method of claim 1, wherein the information retrieval system comprises a wordspotter.

10. The method of claim 1, wherein the active corpus comprises a corpus defined by metadata.

11. The method of claim 1, wherein the retrieval system is further configured to modify the search algorithm to optimize the consistency criterion.

14. The method of claim 14, wherein the consistency criterion comprises a constant amount of computation.

12. The method of claim 14, wherein the system is configured to account for an audio quality of the active corpus in optimizing the consistency criterion.

13. The method of claim 14, wherein the consistency criterion comprises a constant computation time.

15. The method of claim 14, wherein the consistency criterion comprises a constant amount memory used.

16. A system configured to:

receive a search of a corpus from a user;

present the user with a list of putative hits above a certain threshold;

receive a modification to the active subset of the corpus from the user;

dynamically adjust the threshold; and

present to the user a new list of putative hits based on the adjusted threshold.