Proceedings of Symposium on Coastal Oceanography and by Navy Committee, Ocean Studies Board, National Research

By Navy Committee, Ocean Studies Board, National Research Council.

Read or Download Proceedings of Symposium on Coastal Oceanography and Littoral Warfare (Unclassified Summary) Fleet Combat Training Center, Tactical Training Group, Pacific, San Diego, CA, August 2-5, 1993 PDF

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Additional resources for Proceedings of Symposium on Coastal Oceanography and Littoral Warfare (Unclassified Summary) Fleet Combat Training Center, Tactical Training Group, Pacific, San Diego, CA, August 2-5, 1993

Example text

J = N = We have used RelView to generate the membership-relation M : S × G ↔ 2S×G T of size 60 × 260 for this example and to determine then the vector t = Φ(M) 60 of length 2 by translating the deﬁnition of Φ into its programming language. The tool showed that t has 144 1-entries, which means that there are exactly 144 solutions for the given problem, represented by 144 columns of M. Selecting a point p ⊆ t and deﬁning v as composition Mp, a vector of type [S × G ↔ 1] and its corresponding relation S = rel(v) : S ↔ S have been computed such that the latter is a solution of our timetabling problem.

J = N = We have used RelView to generate the membership-relation M : S × G ↔ 2S×G T of size 60 × 260 for this example and to determine then the vector t = Φ(M) 60 of length 2 by translating the deﬁnition of Φ into its programming language. The tool showed that t has 144 1-entries, which means that there are exactly 144 solutions for the given problem, represented by 144 columns of M. Selecting a point p ⊆ t and deﬁning v as composition Mp, a vector of type [S × G ↔ 1] and its corresponding relation S = rel(v) : S ↔ S have been computed such that the latter is a solution of our timetabling problem.

It was posed to us by the administration of our university and stems from the adoption of the British-American system of university education in Germany. This change led to the concrete task of constructing a timetable that enables the undergraduate education of secondary school teachers within three years in the “normal case” and within four years in the case of exceptional combinations of ﬁelds of study. We develop a relational model of the special timetabling problem and apply the RelView tool to compute solutions.