Chang Sheng Liu

Title: Chang Sheng Liu: Innovator in Data Virtualization

Introduction

Chang Sheng Liu is a prominent inventor based in Beijing, China. He has made significant contributions to the field of data virtualization, holding a total of nine patents. His work focuses on optimizing data queries across distributed database systems, which is crucial in today's data-driven world.

Latest Patents

One of Liu's latest patents is titled "Cross-database join query." This invention involves a data virtualization layer that receives a join query request related to multiple tables stored in various distributed database servers. The system generates several candidate query plans, each indicating the order for transmitting the tables to the data virtualization layer. It calculates the query cost for each plan based on the data amount to be transmitted, ultimately selecting the plan with the lowest cost.

Another notable patent is "Remote datasource-based optimization of procedure-based multi-datasource queries." This approach optimizes multi-datasource queries in a networked computing environment. It involves obtaining a procedure containing a set of queries designed to access specific data from multiple datasources in a virtualized hybrid storage environment. Mapped store procedures are created for each datasource, which are then executed in response to running the procedure.

Career Highlights

Chang Sheng Liu has worked with several notable companies throughout his career. He has been associated with IBM, where he contributed to various innovative projects. Additionally, he has worked with Hunan Jin Yuan New Materials Joint Stock Company Limited, further expanding his expertise in the field.

Collaborations

Liu has collaborated with several professionals in his field, including Hai Jun Shen and Lei Cui. These collaborations have likely enriched his work and contributed to his innovative patents.

Conclusion

Chang Sheng Liu is a distinguished inventor whose work in data virtualization has made a significant impact on the industry. His innovative patents demonstrate his commitment to optimizing data queries and improving efficiency in distributed database systems.