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slide1

INTRODUCTION

KOS & INFORMATION STRUCTURES

I am not a member of the KOS community, but I work in a nearby field, which I call information structures. Information is a broader term than knowledge, because it includes stuff like laws, lies and ordinary conversations. Unlike organization, which is created, structures are naturally occurring systems of relations. However, organization of knowledge is often based on selecting a relational structure. The scientific question I am pursuing is “what are all the important ways in which pieces of information are related?”

What follows is a sketch of a case study plus a few sentences about my general theory of information structure. The case study is something we call OSTI’s Science Word Web. It is presently used to help people find search terms, but we will look at its beautiful structure, which is rather like a sailing ship. This is all very introductory so anyone who wants to know more should contact me personally.

David Wojick

WojickD@osti.gov

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SCIENCE WORD WEB

A SAILING SHIP MODEL

TOP NODE

= SCIENCE

RIGGING

45,000 PATHS

2D-CROSS-FACET TAXONOMY

BODY

30,000 TERM THESAURUS

3,500 MINI TAXONOMIES (BT/NT)

200,000 TERM-TERM LINKS (RT)

DAVID WOJICK

WOJICKD@OSTI.GOV

www.osti.gov/taxonomy

slide3

WORD WEB BODY - A THESAURUS

Target term: Climate Models

Broader Terms: Mathematical Models

Narrower Terms: none

Related Terms:

Ambient Temperature

Atmospheric Circulation

Box Models

Climates

General Circulation Models

Meteorology

Paleoclimatology

Seasonal Variations

Preferred Terms: none

Non-Preferred Terms: none

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WORD WEB RIGGING

A 2D-CROSS-FACET TAXONOMY

DISCIPLINES X CHARACTERISTICS

Mathematics

Physics

Chemistry and Chemical Engineering

Biomedical Sciences

Earth Sciences

Geography

Engineering and Technology

Economics

Management

Defense/Military

(many sub-disciplines)

Theories, Models, Principles, Laws

Effects, Processes, Methods

Measurement   

Mathematical Objects and Entities

Natural Objects and Entities

Money

Policy

Facilities

Etc. (40-50)

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WORD WEB INTEGRATION

CONNECTING THE RIGGING TO THE BODY

EVERY PATH IN THE TAXONOMY ENDS AT A BROADEST TERM IN THE THESAURUS

TAXONOMY

45,000 PATHS

THESAURUS

3500 MINI TAXONOMIES

MATHEMATICAL MODEL

RESONANCE

13 PATHS PER MINI

MINI TAXONOMY

MINI TAXONOMY

slide6

SCIENCE WORD WEB

HOW SEE? HOW USE?

TOP NODE

= SCIENCE

RIGGING

45,000 PATHS

2D-CROSS-FACET TAXONOMY

BODY

30,000 TERMS

3,500 MINI TAXONOMIES (BT/NT)

200,000 TERM-TERM LINKS (RT)

DAVID WOJICK

WOJICKD@OSTI.GOV

www.osti.gov/taxonomy

slide7

A THEORY OF INFORMATION STRUCTURES

www.bydesign.com/powervision/Mathematics_Philosophy_Science/information.html

A. OPERATIONAL DEFINITION: INFORMATION IS THE PROPOSITIONAL CONTENT OF EXPRESSED THOUGHT

B. EVERY PIECE OF INFORMATION….

1. HAS A PHYSICAL NATURE

2. EXPRESSES A PROPOSITION

3. WHICH HAS A REFERENT

C. THE SYSTEM DEFINED BYA SPECIFIC RELATION BETWEEN THESE COMPONENTS IS AN INFORMATION STRUCTURE

D. A BODY OF INFORMATION MAY HAVE MANY STRUCTURES; SOME ARE UNKNOWN

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EXAMPLES OF STRUCTURE BASED KNOWLEDGE ORGANIZATION

1. PHYSICAL NATURE (WHO, WHEN, WHERE, ETC.):

-- AUTHOR, DATE, COUNTRY OR INSTITUTION

2. PROPOSITIONS EXPRESSED (WHAT IT SAYS):

-- TITLE, SEARCH HITS OR NAVIGATION LINKS

3. REFERENTS (WHAT IT IS ABOUT):

-- SUBJECT CATEGORIES, VARIOUSLY DEFINED DUE TO DIFFERENT RELATIONS BETWEEN REFERENTS. THERE IS NO UNIQUE SET OF SUBJECT CATEGORIES.

NOTE: TECHNICALLY, ALPHABETICAL LISTING IS ALWAYS A PHYSICAL NATURE RELATION, BECAUSE PROPOSITIONS ARE INDEPENDENT OF LANGUAGE .

LOGIC IS THE SCIENCE OF PROPOSITIONS.

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Dr. David Wojick is senior consultant for innovation with the Office of Scientific and Technical Information of the US Dept. of Energy (www.osti.gov). OSTI owns or operates some of the world's largest science Web portals, including www.worldwidescience.org, www.science.gov, and www.scienceaccelerator.gov.

Dr. Wojick is a cognitive scientist, whose research covers the structure and dynamics of complex information, including visualization, modeling and search logic. His Ph.D. is in Philosophy of Science and Mathematical Logic, with a BS in Civil Engineering. He has served on the faculty of Carnegie Mellon University, and the staffs of the Office of Naval Research and the Naval Research Laboratory. He has been a consultant to many US Federal agencies.

Some of Dr. Wojick's basic writings are at www.osti.gov/ostiblog as well as www.bydesign.com/powervision/Mathematics_Philosophy_Science. His most recent paper -- "Population modeling of the emergence and development of scientific fields" -- is at http://web.mit.edu/dikaiser/www/BKKCW.PopModels.pdf.

Contact: WojickD@osti.gov