Katsumi Tada

Title: **Innovator Katsumi Tada: Pioneering Document Retrieval Technologies**

Introduction:

Katsumi Tada, a prominent inventor based in Kawasaki, Japan, has an impressive portfolio with 31 patents to his name. His work focuses on enhancing document retrieval systems, particularly in multilingual environments. Tada's contributions have greatly impacted the efficiency and accuracy of accessing and delivering information across diverse languages.

Latest Patents:

Among Tada's latest innovations are two noteworthy patents. The first is a **Method of and an apparatus for retrieving and delivering documents**, which involves registering retrieval conditions inputted by multiple users. This apparatus conducts a text retrieval based on these conditions, calculating the similarity of the text for each user group, and delivering results that meet the specified criteria. The second patent pertains to a **Similar document retrieving method and system** designed to find similar documents from a multilingual database. This system efficiently minimizes retrieval noise, considering the varying number of registered documents based on different description languages. By collecting statistical information on a language-by-language basis, the system intelligently weighs the words from the query document to enhance retrieval accuracy.

Career Highlights:

Tada's career has been significantly marked by his work with esteemed companies, including Hitachi, Ltd. and Hitachi Systems & Services, Ltd. His role in these organizations provided him a platform to develop cutting-edge technologies that streamline document retrieval processes.

Collaborations:

Throughout his career, Tada has collaborated with notable colleagues such as Tadataka Matsubayashi and Natsuko Sugaya. These partnerships have fostered an environment of innovation and creativity, enabling the development of advanced solutions in document technology.

Conclusion:

Katsumi Tada stands out as a major contributor to the field of document retrieval, with a specific emphasis on multilingual accuracy. His numerous patents reflect a dedication to improving how we access and deliver information, making him a key figure in contemporary innovation.