Andrew E Waters

Title: The Innovations of Andrew E Waters

Introduction

Andrew E Waters is an accomplished inventor based in Sugar Land, TX (US). He holds a total of four patents that showcase his expertise in mathematical language processing and user content preferences. His innovative work has made significant contributions to the fields of education and technology.

Latest Patents

One of his latest patents is titled "Mathematical language processing: automatic grading and feedback for open response mathematical questions." This invention focuses on mechanisms for automatically grading a large number of solutions provided by learners in response to open-ended mathematical questions. Each solution is mapped to a corresponding feature vector based on the mathematical expressions occurring in the solution. The feature vectors are clustered using either a conventional clustering method or a Bayesian nonparametric clustering method. A representative solution is selected from each solution cluster, and an instructor supplies a grade for each representative solution. Grades for the remaining solutions are then automatically generated based on their cluster membership and the instructor-supplied grades. The Bayesian method may also automatically identify the location of an error in a given solution, providing valuable feedback to learners.

Another notable patent is "Sparse factor analysis for analysis of user content preferences." This invention provides a mechanism for discerning user preferences for categories of provided content. A computer receives response data, including a set of preference values assigned to content items by users. Output data is computed based on this response data using a latent factor model. The output includes an association matrix that defines K concepts associated with the content items, where K is smaller than the number of content items. The computer may display a visual representation of the association strengths in the association matrix and/or the extents in the concept-preference matrix.

Career Highlights

Andrew E Waters has worked with prestigious organizations such as William Marsh Rice University and Texas Instruments Corporation. His experience in these institutions has allowed him to develop and refine his innovative ideas, contributing to advancements in technology and education.

Collaborations

Throughout his career, Andrew has collaborated with notable individuals, including Richard G Baraniuk and Charles Kasimer Sestok. These collaborations have further enriched his work and expanded the impact of his inventions.

Conclusion

Andrew E Waters is a prominent inventor whose work in mathematical language processing and user content preferences has made a significant impact in his field. His innovative patents and collaborations reflect his dedication to advancing technology and education.