David L Racz

Title: The Innovative Contributions of David L. Racz

Introduction

David L. Racz is a notable inventor based in Palo Alto, CA, with a focus on advancements in digital mapping and travel time prediction technologies. He holds a total of 6 patents, showcasing his commitment to innovation in the tech industry.

Latest Patents

One of his latest patents involves classifying entities in digital maps using discrete non-trace positioning data. This patent describes systems, methods, and software designed to enhance entity classification operations for digital maps. The entity classification system associates tiles in a grid overlaying a map with discrete positioning records produced by devices operating in the areas represented in the map. For each tile in an area of interest, the system generates a scalar description based on a subset of the discrete positioning records associated with that tile. It then performs a binary classification of each tile as a type of entity, such as a road, business, or residence, based on the scalar description of the tile and the scalar descriptions of other tiles in the area.

Another significant patent focuses on predicting and utilizing variability of travel times in mapping services. This system predicts the variability of travel time for a trip at a specific time using a machine learning model that includes latent variables associated with the trip. The model is trained from historical trip data based on location-based measurements reported from mobile devices. Once trained, it can predict the variability of travel time, recommend routes based on predicted probability distributions, and provide measures of travel time for the recommended routes.

Career Highlights

David has worked with prominent companies such as Microsoft Technology Licensing, LLC and Nokia Corporation. His experience in these organizations has contributed to his expertise in technology and innovation.

Collaborations

David has collaborated with notable individuals in the field, including Yiming Ma and Rich Hankins. Their collective efforts have further advanced the projects they have worked on together.

Conclusion

David L. Racz's contributions to the fields of digital mapping and travel time prediction demonstrate his innovative spirit and dedication to improving technology. His patents reflect a deep understanding of complex systems and a commitment to enhancing user experiences in navigation and mapping services.