Xerox vs. Yahoo、Google

Xerox於2010.2.19.在美國德拉瓦州控告Google、YouTube及Yahoo侵犯該公司攸關搜尋及資訊整合的兩項專利，除了請求損害賠償外，並要求法院禁止上述業者再使用相關技術。

系爭專利
Xerox宣稱Google AdWords、AdSense、Yahoo Search Marketing、Yahoo出版商網路，及Y!Q關聯性搜尋侵犯了該公司US6778979的美國專利，這是一個可自動產生查詢的系統技術。並指控Google Maps、Google Video、YouTube及Yahoo Shopping侵犯了另一US6236994的美國專利，該專利技術主要用於整合不同的應用程式並提供資訊管理。

US6778979
Title:System for automatically generating queries
Filing Date:2001.12.5.
Issue Date:2004.8.17.
Abstract:
A system generates a query using an entity extractor, a categorizer, a query generator, and a short run aspect vector. The entity extractor identifies a set of entities in selected document content for searching information related thereto using an information retrieval system. The categorizer defines an organized classification of document content with each class in the organization of content having associated therewith a classification label that corresponds to a category of information in the information retrieval system. The categorizer assigns the selected document content a classification label from the organized classification of content. A query generator formulates a query that restricts a search at the information retrieval system to the category of information in the information retrieval system identified by the assigned classification label. The short length aspect vector generator generates terms for further refining the query using context information surrounding the set of entities in the selected document content.

US6236994
Title:Method and apparatus for the integration of information and knowledge
Filing Date:1998.6.29.
Issue Date:2001.5.22.
Abstract:
The present invention is a method and apparatus for first integrating the operation of various independent software applications directed to the management of information within an enterprise. The system architecture is, however, an expandable architecture, with built-in knowledge integration features that facilitate the monitoring of information flow into, out of, and between the integrated information management applications so as to assimilate knowledge information and facilitate the control of such information. Also included are additional tools which, using the knowledge information enable the more efficient use of the knowledge within an enterprise, including the ability to develop a context for and visualization of such knowledge.