3.1.2 为什么要有知识图谱？

• 管理知识的重要
  • 合作信息系统 —— A Semantic Web Primer - Series Forward
  • 信息处理 —— A Semantic Web Primer
    • 信息检索问题
      • High recall, low precision
      • Low or no recall
      • Results are highly sensitive to vocabulary
      • Results are single Web pages
    • 知识管理问题
      • Searching information. keyword-based
      • Extracting information. time consuming
      • Maintaining information. inconsistencies in terminology and failure to remove outdated inforamtion
      • Uncovering information. task is difficult for distributed, weakly structured collections of documents.
      • Viewing information. hard to restrict access to certain information to certain groups of employees.

有了知识图谱后的好处

• B2C
• B2B
• Knowledge Management
• Wikis
• Personal Agents