Advances in Information Systems: Second International by Johanna Wenny Rahayu, David Taniar (auth.), Tatyana Yakhno

By Johanna Wenny Rahayu, David Taniar (auth.), Tatyana Yakhno (eds.)

This quantity includes the complaints of the second one overseas convention on Advances in details platforms (ADVIS) held in Izmir, Turkey, 23–25 October 2002. This convention was once devoted to the reminiscence of Prof. Esen Ozkarahan. He used to be an outstanding researcher who made a vital contribution to the advance of knowledge platforms. Prof. Ozkarahan used to be one of many pioneers of database computing device study and database platforms in Turkey. This convention was once equipped by way of the pc Engineering division of Dokuz Eylul college in Izmir. This division was once verified in 1994 by means of Prof. Ozkarahan and he labored there for the final ?ve years of his lifestyles. the most target of the convention was once to compile researchers from everywhere in the international operating in di?erent components of knowledge structures, to proportion new rules and current their newest effects. This time we acquired ninety four submissions from 27 international locations. this system committee chosen forty papers for presentation on the convention. through the convention a workshop used to be equipped at the subject “New info applied sciences in Education”. The invited and approved cont- butions conceal a wide number of subject matters: common features of data structures, databases and knowledge warehouses, details retrieval, multiagent structures and applied sciences, dispensed and parallel computing, evolutionary algorithms and process programming, and new info applied sciences in schooling. The luck of the convention used to be established upon the exertions of a giant variety of humans. We gratefully recognize the individuals of this system C- mittee who helped to coordinate the method of refereeing all submitted papers.

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Support Valid-Time Indeterminacy, ACM Transactions on Database Systems, Vol. 23, No. 1, 1–57, 1998 4. T. Bylander, T. Steel, The logic of Questions and Answers, Yale University Press, New Haven, CT, 1976. 5. F. Kabanza, J-M. Stevenne, P. Wolper, Handling Infinite Temporal Data, Proc. of ACM Symposium on Principles of Database Systems (PODS), 392–403, 1990. 6. , Representing Temporal and Factual Uncertainty, Proceedings of the Fourth International Conference on Flexible Query Answering Systems, FQAS 2000, Advances in Soft Computing, ISBN 3-7908-1347-8, Physica-Verlag, 161–170, 2000.

This makes the matching technique simple and predicts a matching level usually at an early steps of the matching process. Consequently, the use of these query matching conditions reduces the computational complexity in a match detection. We define the conditions under which a query Q = (rQ , pQ , aQ ) matches to a group query G = (rG , pG , aG ) as follows: Condition 1 (Relation condition). e. computed from) G iff rG ∩ rQ = φ. Condition 2 (Attribute condition). The relationship between the attributes of Q and G identifies a matching level as follows: (1) if aG = aQ , then G can be an exact match to Q (2) if aG ⊆ aQ , then G can be a containing match to Q (3) if aQ ⊆ aG , then G can be a contained match to Q.

A tuple with (Bel, Pls) = [0,0] corresponds to a tuple that is believed not to qualify with full certainty. A tuple with (Bel, Pls) = (0,1) corresponds to complete ignorance about the tuple’s membership. At this point an issue arises: the estimation of the (Bel, Pls) measures in a structured lattice domain Let l be an element defined by a structured domain L. e. U(e) = {n|n ³ L ¾ n is an ancestor of l}, and L(e) is the set of lower concepts L(e) = {n|n ³ L ¾ n is a descendent of l}. If l is a base concept then L(e) = « and if l is a top level concept, then U(e) = «.

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