Livne
Nava L. Livne, Chicago, IL US
Patent application number | Description | Published |
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20110244434 | System and Method of Analyzing Freeform Mathematical Responses - A system and method are provided of analyzing a response expression in a freeform format as entered by a student in response to testing and practice questions presented by a computer system. The method can include parsing the response expression into tokens stored in a response expression tree. The system can determine whether the response expression tree is legal based on a defined grammar structure. Another operation is comparing a numerical evaluation of the response expression to a numerical evaluation of a reference expression. The similarity between the response expression and the reference expression can then be determined by comparing the response expression tree and a reference expression tree. Feedback can be supplied to the student regarding the overall correctness of the response expression as compared to the reference expression, based on correctness of each response expression element and the types of errors among response elements. | 10-06-2011 |
Oren E. Livne, Chicago, IL US
Patent application number | Description | Published |
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20110244434 | System and Method of Analyzing Freeform Mathematical Responses - A system and method are provided of analyzing a response expression in a freeform format as entered by a student in response to testing and practice questions presented by a computer system. The method can include parsing the response expression into tokens stored in a response expression tree. The system can determine whether the response expression tree is legal based on a defined grammar structure. Another operation is comparing a numerical evaluation of the response expression to a numerical evaluation of a reference expression. The similarity between the response expression and the reference expression can then be determined by comparing the response expression tree and a reference expression tree. Feedback can be supplied to the student regarding the overall correctness of the response expression as compared to the reference expression, based on correctness of each response expression element and the types of errors among response elements. | 10-06-2011 |
Yair Livne, Palo Alto, CA US
Patent application number | Description | Published |
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20140032273 | SYSTEM OF CREDITS FOR USE WITH A NETWORK-BASED APPLICATION - A credit mechanism or system for use with a network-based application is described. The credit mechanism operates in conjunction with the network-based application to require that users pay a number of credits to interact with other users. The number of credits required to interact with a particular user may be determined using an algorithm that takes as input a number of signals that are inferred from observed data and which generally represent a measure of the particular user's willingness to provide time and attention (e.g., supply of attention), and a measure of the desire of other users to obtain the particular user's attention (e.g., demand for attention). | 01-30-2014 |