Keiichirou Hoashi

Title: Keiichirou Hoashi: Innovator in Document Filtering Technologies

Introduction

Keiichirou Hoashi is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of information filtering, holding a total of 2 patents. His work focuses on improving the accuracy and efficiency of document filtering systems.

Latest Patents

Hoashi's latest patents include a scheme for filtering documents on networks using relevant and non-relevant profiles. This innovative document filtering scheme aims to reduce the number of erroneously selected non-relevant documents while maintaining the selection of relevant documents. By utilizing a non-relevant profile that expresses non-relevant documents with high similarities to a relevant profile, the system effectively removes non-relevant documents that exceed prescribed similarity thresholds.

Another significant patent is a method and apparatus for automatic information filtering that employs a URL hierarchical structure and automatic word weight learning. This method enhances both precision and recall, allowing for accurate judgments of content appropriateness, even for pages with minimal text. The system utilizes upper-level URLs in a hierarchical structure and employs automatic learning based on a linear discrimination function to set word weights effectively.

Career Highlights

Throughout his career, Keiichirou Hoashi has worked with prominent companies such as KDD Corporation and DDI Corporation. His experience in these organizations has contributed to his expertise in developing advanced filtering technologies.

Collaborations

Some of Hoashi's notable coworkers include Naomi Inoue and Kazuo Hashimoto. Their collaboration has likely played a role in the development of innovative solutions in the field of information filtering.

Conclusion

Keiichirou Hoashi's contributions to document filtering technologies demonstrate his commitment to enhancing information retrieval systems. His innovative patents reflect a deep understanding of user needs and technological advancements in the field.