1. Metadata++: 15 August 2001 Forest Board Meeting Mathew Weaver Department of Computer Science and Engineering Oregon Graduate Institute School of Science & Engineering Oregon Health & Science University A Superimposed Architecture for Semantic Searching

2. 15 August 2001Metadata++ - Mathew Weaver - Forest Board Meeting2 Metadata++ Architecture Document Scope Explicit document metadata –Document Proxies –Terms –Properties Enhanced superimposed metadata

3. 15 August 2001Metadata++ - Mathew Weaver - Forest Board Meeting3 Document Scope DigitalNon-Digital Metadata++ Document Proxies

4. 15 August 2001Metadata++ - Mathew Weaver - Forest Board Meeting4 Terms Values in traditional metadata become explicit terms Author: Parley Pratt Purpose: Environmental Assessment Location: Wenatchee National Forest Keyword: Interstate 90 Keyword: Snoqualmie Pass Parley Pratt Environmental Assessment Wenatchee National Forest Interstate 90 Snoqualmie Pass Author Location Purpose Keyword

5. 15 August 2001Metadata++ - Mathew Weaver - Forest Board Meeting5 Properties Fields in traditional metadata become explicit properties Parley Pratt Author Environmental Assessment Purpose Wenatchee National Forest Location Interstate 90 Snoqualmie Pass Keyword Author: Parley Pratt Purpose: Environmental Assessment Location: Wenatchee National Forest Keyword: Interstate 90 Keyword: Snoqualmie Pass

6. 15 August 2001Metadata++ - Mathew Weaver - Forest Board Meeting6 Explicit Metadata Document Proxies, Terms, and Properties are all explicit objects Parley Pratt Author Environmental Assessment Purpose Wenatchee National Forest Location Interstate 90 Snoqualmie Pass Keyword Document metadata is represented by associating a proxy with a term via a property

7. 15 August 2001Metadata++ - Mathew Weaver - Forest Board Meeting7 Explicit Metadata Editor NEPA Cle Elum Ranger District Parley Pratt Author Environmental Assessment Purpose Wenatchee National Forest Location Interstate 90 Snoqualmie Pass Keyword

8. 15 August 2001Metadata++ - Mathew Weaver - Forest Board Meeting8 Enhanced Metadata Editor NEPA Cle Elum Ranger District Parley Pratt Author Environmental Assessment Purpose Wenatchee National Forest Location Interstate 90 Snoqualmie Pass Keyword Spatial Cont. Concept. Cont. Additional superimposed information is represented by associating terms with other terms via properties …. … this is useful for representing structured controlled vocabularies, etc.

9. 15 August 2001Metadata++ - Mathew Weaver - Forest Board Meeting9 Super Enhanced Metadata Editor NEPA Cle Elum Ranger District Parley Pratt Author Environmental Assessment Purpose Wenatchee National Forest Location Interstate 90 Snoqualmie Pass Keyword Spatial Cont. Concept. Cont. Western Hemlock Explicit properties are hierarchically related – allowing for flexibility in the degree of precision … “Find documents where Parley Pratt is a contributor.” Contributor

10. 15 August 2001Metadata++ - Mathew Weaver - Forest Board Meeting10 Super-Duper Enhanced Metadata Editor NEPA Cle Elum Ranger District Parley Pratt Author Environmental Assessment Purpose Wenatchee National Forest Location Interstate 90 Snoqualmie Pass Keyword Spatial Cont. Concept. Cont. Western Hemlock Contributor Species In addition to hierarchical structure between terms, other information may be represented by associating terms with terms via properties. This supports enhanced searching – such as similarity search.