Leonid Rosenfeld

Title: The Innovations of Leonid Rosenfeld

Introduction

Leonid Rosenfeld is a notable inventor based in Brookline, MA (US). He has made significant contributions to the field of data access and monitoring through his innovative patents. With a total of six patents to his name, Rosenfeld's work has had a considerable impact on how databases are accessed and monitored.

Latest Patents

One of his latest patents is titled "Dynamically selecting among learned and non-learned indexes for data access." This technology relates to systems and techniques for accessing a database by dynamically choosing an index from a plurality of indexes that includes at least one learned index and at least one non-learned index. The availability of learned and non-learned indexes for accessing the same database provides flexibility in accessing the database. The dynamic selection between learned indexes and non-learned indexes allows for choosing the index based on the underlying data in the database and the characteristics of the query. Certain example embodiments provide a learned model that accepts a set of features associated with the query as input and outputs a set of evaluated weights for respective features, which are then processed according to a set of rules to predict the most efficient index to be used.

Another significant patent is "System and methods for data model detection and surveillance." This invention provides a computer system for monitoring and detecting changes in data-generating processes, which may be under a multi-dimensional and unsupervised setting. A target dataset is split into paired subgroups by a separator, and one or more detectors are applied to detect changes, anomalies, inconsistencies, and the like between the paired subgroups. Metrics may be generated by the detector(s), which are then passed to an evaluating system.

Career Highlights

Leonid Rosenfeld is currently employed at Nasdaq, Inc., where he continues to innovate and contribute to advancements in data technology. His work at Nasdaq has allowed him to apply his inventive skills in a practical setting, further enhancing the efficiency of data access and monitoring systems.

Collaborations

Rosenfeld has collaborated with notable colleagues such as Jonathan Rivers and Douglas Hamilton. These collaborations have likely contributed to the development and refinement of his innovative ideas and patents.

Conclusion

Leonid Rosenfeld's contributions to the field of data access and monitoring through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence the way databases are accessed and