Company Filing History:
Years Active: 2025
Title: Lei Zhang - Innovator in Information Extraction Systems
Introduction
Lei Zhang is a prominent inventor based in New York, NY (US). He has made significant contributions to the field of information extraction systems, particularly focusing on unstructured documents. With a total of 3 patents, his work is paving the way for advancements in data processing and retrieval.
Latest Patents
Lei Zhang's latest patents include innovative systems designed to enhance the extraction of data elements from unstructured sources. The first patent, titled "Information extraction system for unstructured documents using retrieval augmentation providing source traceability and error control," outlines a system that separates text from tables in documents. This allows only the relevant table data to be sent to a large language model (LLM) for review. The system generates chunks from the document and associates unique identifiers with each chunk to ensure traceability. It also includes a mechanism for the LLM to report the chunks used during data extraction, which are stored for verification and error control.
The second patent, "Information extraction system for unstructured documents using independent tabular and textual retrieval augmentation," further refines the extraction process. This system also separates text from tables and includes features for converting PDFs to text while using markdown language to distinguish between document text and table data. It indexes the chunks using vector embeddings and stores identifiers to provide result traceability. The system can retrieve targeted table or text chunks in response to prompts, allowing for efficient data extraction and populating an ontological data store based on the LLM's responses.
Career Highlights
Lei Zhang is currently employed at American International Group, Inc., where he continues to innovate in the field of information extraction. His work is instrumental in developing systems that improve data handling and accuracy in various applications.
Collaborations
Lei collaborates with Christopher Cirelli, contributing to the advancement of their projects and enhancing the capabilities of their systems.
Conclusion
In summary, Lei Zhang is a notable inventor whose work in information extraction systems is making a significant impact in the field. His innovative patents demonstrate a commitment to improving data processing and retrieval methods.