DESIGN R CHAWUTHAI 1

COMMUNITY KNOWLEDGE 1.information preservation, refers to the ability to understand the rendered object at any time, i.e., to be able to understand its content by understanding the terms, concepts or other information that appears in it, by placing it in its correct context 2.Another important observation that can be made here is that the need for preservation can appear in both space and time dimensions. The “space” dimension refers to the fact that different people have different background knowledge and, consequently, may have trouble understanding each other’s documents (e.g., an astronomer may have trouble understanding a scientific paper on computer software). Similarly, the “time” dimension refers to the fact that different people in different times Terminology and Wish List for a Formal Theory of Preservation 2

COMMUNITY ENTITY Spaces Time intervals Contextual Knowledge Community Knowledge 3

Spaces Contextual Knowledge TIME Community Knowledge tl:Interval period xsd:dateTime tl:beginAtDateTime tl:endAtDateTime contain prefix tl 4

Contextual Knowledge SPACE Community Knowledge tl:Interval period xsd:dateTime tl:beginAtDateTime tl:endAtDateTime contain foaf:Group soic:Community perceivedBy prefix tl 5

PROVENANCE A context maybe a rich object that has descriptions about its properties (such as provenances) and relations to other contexts. the provenance of a context, including the aspects of temporal (when), spatial (where), agent (who), casual (why) and other properties. Context Representation for the Semantic Web 6

REFERENCE Barwise and Seligman (1992) use natural regularities to study the role of context in categorization. An example regularity from Seligman (1993) is, “Swans are white.” This is atypical natural regularity in the sense that it is both reliable and fallible. Natural regularities are reliable because they are needed to explain successful representation, knowledge, truth, and correct reference. They are fallible because they are needed to account for misinterpretation, error, false statements, and defeasible reference. papers/aimag/aimag1996.pdf Steps toward Formalizing Context Varol Akman and Mehmet Surav 7

Contextual Knowledge PROVENANCE Community Knowledge tl:Interval period xsd:dateTime tl:beginAtDateTime tl:endAtDateTime contain foaf:Group, soic:Community perceivedBy prefix tl foaf:Agent bibo:performer Book, thing reference reporter 8

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The extension of concept mapping into full conceptual knowledge structures to facilitate collaborative knowledge evolution. Towards Virtual Community Knowledge Evolution *** 10