Intelligent tutoring feedback

• US 8,109,765 B2
• Filed: 09/10/2004
• Issued: 02/07/2012
• Est. Priority Date: 09/10/2004
• Status: Active Grant

• Current Assignee: Scientific Learning Corp. (Carnegie Learning, Inc.)
• Original Assignee: Scientific Learning Corp. (Carnegie Learning, Inc.)
• Inventors: Beattie, Valerie L., Adams, Marilyn Jager, Barrow, Michael
• Primary Examiner(s): Hu, Kang
• Application Number:
  US10/938,746
• Publication Number:
  US 20060069561A1
• Time in Patent Office: 2,706 Days
• Field of Search: 434/156, 434/167, 434/170, 434/178, 434/179, 434/185, 434/308, 434/319, 434/322, 704/246, 704/1, 704/200, 704/231
• US Class Current: 434/178
• CPC Class Codes: G09B 5/04 with audible presentation of the material to be studied sound recording or reproducing G11B
• CPC Class Codes: G10L 15/22 Procedures used during a speech recognition process, e.g. man-machine dialogue
• CPC Class Codes: G10L 2015/225 Feedback of the input speech

Abstract

Methods and related computer program products, systems, and devices for providing intelligent feedback to a user based on audio input associated with a user reading a passage are disclosed. The method can include assessing a level of fluency of a user'"'"'s reading of the sequence of words using speech recognition technology to compare the audio input with an expected sequence of words and providing feedback to the user related to the level of fluency for a word.

Claims

1. A computer-based method comprising:

receiving by a computer audio input associated with a user reading a sequence of words displayed on a graphical user interface generated from the computer, with words in the sequence of words associated with at least one pre-assigned word category;

assessing by the computer a level of fluency and pronunciation accuracy of the reading by the user of the sequence of words by;

applying the audio input to a speech recognition engine, configured to produce an output, as a sequence of recognized words, corresponding to the received input;

comparing the sequence of recognized words to an expected sequence of words; and

providing by the computer feedback to the user related to the level of fluency and pronunciation accuracy for a word in the sequence of recognized words, wherein providing the feedback includes;

(a) providing immediate feedback comprising one or more of a visual intervention that includes visual indications provided on the graphical user interface and an audio intervention that includes an audio indication if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words does not meet a first set of criteria;

(b) placing words on a review list if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words meets the first set of criteria, but does not meet a second set of criteria;

(c) placing words on a review list if immediate feedback was given for the word in the sequence of recognized words, depending on the word'"'"'s category and type of immediate feedback previously given;

(d) providing deferred feedback by concurrently presenting a plurality of words from the review list to the user;

wherein the computer-based method is executed by a processor in a computer system.

2. The method of claim 1 wherein providing deferred feedback further comprises:

providing feedback based on an elapsed time before, during, and/or after the output is recognized as a word.

3. The method of claim 1 wherein the criteria for providing immediate and deferred feedback for a word are dependent on the word'"'"'s category.

4. The method of claim 1, wherein the immediate feedback is a visual intervention that includes visual indications provided on the graphical user interface, and which does not include an audio indication.

5. The method of claim 4 wherein the visual indications comprises highlighting the word on the graphical user interface.

6. The method of claim 4 wherein the visual indications comprise:

coloring the text prior to the word in the sequence of recognized words in a first color; and

coloring the word and text subsequent to the word in the sequence of recognized words in a second color, the first color being different from the second color.

7. The method of claim 1, wherein the audio indication comprises a pronunciation of the word.

8. The method of claim 1, wherein a visual intervention is provided based on a first attempt by the user to read a word and an audio intervention is provided based on a second attempt by the user to read the word.

9. The method of claim 8 further comprising:

providing the user a third opportunity to read the word subsequent to the audio intervention; and

providing a visual indication on the graphical user interface to indicate that the user should continue reading with the subsequent word if the level of fluency and pronunciation accuracy criteria for the word does not meet a third set of criteria.

10. The method of claim 1 wherein the deferred feedback comprises coloring the sequence of words read by the user using different colors on the graphical user interface.

11. The method of claim 10 further comprising:

providing a color based indication for words meeting both sets of fluency and pronunciation accuracy criteria using a first color;

providing a color based indication for words receiving an audio intervention using a second color; and

providing a color based indication for words not receiving an audio intervention and not meeting the second set of criteria using a third color.

12. The method of claim 11 further comprising providing a color based indication for words which received a visual intervention, but not an audio intervention, using the third color.

13. The method of claim 1 wherein words receiving an audio intervention are placed on a review list.

14. The method of claim 1 wherein words receiving a visual intervention are placed on a review list.

15. The method of claim 1 further comprising assessing the fluency and pronunciation accuracy of the reading by the user on a word-by-word basis, including:

generating user statistics and performance measurements for both progress reporting and dynamic adjustment of the tutoring software settings for the user;

generating lists of words which the user has mastered;

measuring the base or “

trouble-free”

reading rate for the user.

28. The method of claim 1, wherein:

providing the immediate feedback if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words does not meet a first set of criteria comprises providing one or more of an audio intervention that includes an audio indication and providing a visual intervention that includes a visual indication provided on the graphical user interface;

providing the deferred feedback to the user if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words meets the first set of criteria, but does not meet a second set of fluency and pronunciation accuracy criteria comprises placing a word on a review list if the received audio for the word if the level of fluency and accuracy for the word indicated a correct pronunciation of the word but a time between receiving a correct pronunciation exceeded a threshold length of time; and

providing the deferred feedback to the user if immediate feedback was given for the word in the sequence of recognized words, depending on the word'"'"'s category and type of immediate feedback previously given comprises placing a word on a review list if an audio or visual intervention was provided for the word and the word is in a particular category of words.

16. A computer program product residing on a non-transitory computer readable medium comprising instructions for causing an electrical device to:

receive audio input associated with a user reading a sequence of words displayed on a graphical user interface, with at least one of the words in the sequence of words associated with a pre-assigned word category;

assess a level of fluency and pronunciation accuracy of the reading by the user of the sequence of words by;

applying the audio input to a speech recognition engine, configured to produce an output, as a sequence of recognized words, corresponding to the received input;

comparing the sequence of recognized words to an expected sequence of words; and

providing feedback to the user related to the level of fluency and pronunciation accuracy for a word in the sequence of recognized words, wherein providing the feedback includes;

(a) providing immediate feedback comprising one or more of a visual intervention that includes visual indications provided on the graphical user interface and an audio intervention if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words does not meet a first set of criteria;

(b) placing words on a review list if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words meets the first set of criteria, but does not meet a second set of criteria;

(c) placing words on a review list if immediate feedback was given for the word in the sequence of recognized words, depending on the word'"'"'s category and type of immediate feedback previously given; and

(d) providing deferred feedback by concurrently presenting a plurality of words from the review list to the user.

17. The computer program product of claim 16 wherein the immediate feedback is a visual intervention that includes visual indications provided on the graphical user interface, and which does not include an audio indication.

18. The computer program product of claim 16 further comprising instructions for causing an electrical device to:

color the text prior to the word in the sequence of recognized words in a first color; and

color the word and text subsequent to the word in the sequence of recognized words in a second color, the first color being different from the second color.

19. The computer program product of claim 16 wherein a visual intervention is provided based on a first attempt by the user to read a word and an audio intervention is provided based on a second attempt by the user to read the word.

20. The computer program product of claim 16 further comprising instructions for causing an electrical device to:

provide a color based indication for words meeting both sets of fluency and pronunciation accuracy criteria using a first color;

provide a color based indication for words receiving an audio intervention using a second color; and

provide a color based indication for words not receiving an audio intervention and did not meet the second set of criteria using a third color.

21. The computer program product of claim 16 wherein words receiving an audio intervention are placed on a review list.

22. The computer program product of claim 16 wherein words receiving a visual intervention are placed on a review list.

23. An apparatus comprising:

a processor; and

an input device;

wherein;

the input device is configured to receive audio input associated with a user reading a sequence of words displayed on a graphical user interface, with at least one word in the sequence of words associated with a pre-assigned word category;

the processor is configured to assess a level of fluency and pronunciation accuracy of the reading by the user of the sequence of words by;

applying the audio input to a speech recognition engine, configured to produce an output, as a sequence of recognized words, corresponding to the received input; and

comparing the sequence of recognized words to an expected sequence of words; and

the processor is further configured to provide feedback to the user related to the level of fluency and pronunciation accuracy for a word in the sequence of recognized words, with providing feedback comprising;

providing immediate feedback comprising one or more of a visual intervention that includes visual indications provided on the graphical user interface and an audio intervention if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words does not meet a first set of criteria;

placing words on a review list if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words meets the first set of criteria, but does not meet a second set of criteria;

placing words on a review list if immediate feedback was given for the word in the sequence of recognized words, depending on the word'"'"'s category and type of immediate feedback previously given; and

providing deferred feedback by concurrently presenting a plurality of words from the review list to the user.

24. The apparatus of claim 23 further configured to:

color the text prior to the word in the sequence of recognized words in a first color; and

color the word and text subsequent to the word in the sequence of recognized words in a second color, the first color being different from the second color.

25. The apparatus of claim 23 further configured to:

provide a color based indication for words meeting both sets of fluency and pronunciation accuracy criteria using a first color;

provide a color based indication for words receiving an audio intervention using a second color; and

provide a color based indication for words not receiving an audio intervention and did not meet the second set of criteria using a third color.

26. The apparatus of claim 23 further configured to place words on a review list based on an audio or visual intervention.

27. The apparatus of claim 23 further configured to generate review exercises for the user based on the review list.

29. A computer-based method comprising:

receiving by a computer audio input associated with a user reading a sequence of words displayed on a graphical user interface generated from the computer, with words in the sequence of words associated with at least one pre-assigned word category;

assessing by the computer a level of fluency and pronunciation accuracy of the reading by the user of the sequence of words by;

applying the audio input to a speech recognition engine, configured to produce an output, as a sequence of recognized words, corresponding to the received input;

comparing the sequence of recognized words to an expected sequence of words; and

providing by the computer feedback to the user related to the level of fluency and pronunciation accuracy for a word in the sequence of recognized words, wherein providing the feedback includes;

(a) providing, based on a first attempt by the user to read a word, a visual intervention that includes a visual indication provided on the graphical user interface if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words does not meet a first set of criteria,

(b) providing, based on a second attempt by the user to read a word, an audio intervention that includes an audio indication if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words does not meet the first set of criteria;

(c) placing a word on a review list if the level of fluency and pronunciation accuracy for a word in the sequence of recognized words meets the first set of criteria, but does not meet a second set of criteria;

(d) placing a word on the review list if immediate feedback was given for the word in the sequence of recognized words, depending on the word'"'"'s category and type of immediate feedback previously given; and

(e) providing deferred feedback by concurrently presenting a plurality of words from the review list to the user;

wherein the computer-based method is executed by a processor in a computer system.