7/02/2006

NOTE: EMERGENT SEMANTICS

ref:
1. Aberer, K., Cudre-Mauroux, P., Ouksel, A.M., Catarci, T., Hacid, M.S. Illarramendi, A., Kashyap, V., Mecella, M., Mena, E., Neuhold, E.J., Troyer, O.D., Risse, T., Scannapieco, M., Saltor, F., De Santis, L., Spaccapietra, S., Staab, S., Studer, R. (2004). Emergent Semantics Principles and Issues. Database Systems for Advanced Applications 9th International Conference, DASFAA.

2.Michlmayr, E. (2005). A Case Study on Emergent Semantics in Communities. Workshop on Semantic Network Analysis, International Semantic Web Conference (ISWC2005), Galway, Ireland.

3.IFIP 2.6 working group on data semantics
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what is "emergent semantics"?

from 2:
The term emergent semantics was defined by Aberer et al. in [2]. In this work, the authors discuss semantic interoperability for loosely coupled information sources and observe that a-priori agreements on concepts, e.g., the use of ontologies, are not appropriate in ad-hoc situations, because there is no possibility for the communicating peers to anticipate all interpretations. Instead, a semantic handshake protocol is suggested that allows negotiations between pairs of peers to reach an agreement over the meaning of models, e.g., by local schema mapping [1]. In order to save network resources, these negotiations are local interactions whenever possible. Global agreements are obtained by aggregating local agreements.
Semantic interoperability is constructed incrementally by lots of negotiations which are influenced by the context of existing global agreements.

[comment by midi]:
1. the use of ontology is not appropriate in ad-hoc, dynamic situation
2.agreements on semantics are the results of negotiation
a) semantic handshake protocal
b)negotiation
c)locally consensus
d)global consensus is achieved incrementally

from 1:
semantic interoperability is viewed as an emergent phenomenon constructed incrementally, and its state at any given point in time depends on the frequency, the quality and the efficiency with which negotiations can be conducted to reach agreements on common interpretations within the context of a given task. We refer to this type of semantic interoperability as "emergent semantics".

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