Håvard Pettersen

Title: Håvard Pettersen: Innovator in Search Engine Technology

Introduction

Håvard Pettersen is a notable inventor based in Trondheim, Norway. He has made significant contributions to the field of search engine technology. His innovative approach has led to the development of a unique search engine that utilizes hierarchically stored indices.

Latest Patents

Håvard Pettersen holds one patent titled "Search engine with hierarchically stored indices." This patent describes a search engine that includes a crawler which navigates the World Wide Web and stores the pages it finds in a database. An indexer is responsible for indexing these pages to create a primary index. The invention features a document mapping section that categorizes pages into multiple tiers based on their ranking, which is determined by the value context of specific portions of the pages. A processor generates several sub-indices from the primary index, which are then stored in a search node cluster. This cluster is organized in a matrix format, with search nodes in the same column sharing the same sub-index, while nodes in the same row contain distinct sub-indices. When a user submits a search query, it is directed to a dispatcher that forwards the query to the first tier of search nodes. The patent also includes a fall-through algorithm that determines when to escalate the query to other tiers of search nodes.

Career Highlights

Håvard Pettersen is currently employed at Overture Services, Inc., where he continues to innovate in the realm of search technology. His work has been instrumental in enhancing the efficiency and effectiveness of search engines.

Collaborations

Throughout his career, Håvard has collaborated with notable colleagues, including Knut Magne Risvik and Yngve Aasheim. These partnerships have contributed to the advancement of his projects and the overall development of search engine technology.

Conclusion

Håvard Pettersen is a distinguished inventor whose work in search engine technology has made a lasting impact. His innovative patent demonstrates a sophisticated approach to indexing and retrieving information from the web.