作者：
SYNEFAKI, AI[a]Faculty of Technology-General Department
University of Thessaloniki Faculty of Technology Div. Computational Methods and Computer Programming Thessaloniki 540 06 Greece Fax: [b]University of Macedonia Thessaloniki
In this paper we develop an algorithm in order to solve pseudo-Boolean nonlinear equations and inequalities. The solutions to these problems are given in the form of set families. The objective of the proposed algorit...
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In this paper we develop an algorithm in order to solve pseudo-Boolean nonlinear equations and inequalities. The solutions to these problems are given in the form of set families. The objective of the proposed algorithms is the minimisation of the family number. The computational experiment showed that the time needed to obtain a solution family is almost constant.
The left context in LR-based parsing is the sequence of states in the parsing stack. The right context is the vocabulary strings to appear for a given left context. We propose an efficient method of computing right co...
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The left context in LR-based parsing is the sequence of states in the parsing stack. The right context is the vocabulary strings to appear for a given left context. We propose an efficient method of computing right context for LR-based syntax error repair. The efficiency of our method is achieved from removing some redundancies in the method of previous work.
We illustrate the difference between sequential composition in process algebra axiomatisations like ACP and action prefixing in process calculi like CCS. We define both early and late input in a general framework exte...
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For whatever reason, formal methods remain one of the more contentious techniques in industrial software engineering. Despite some improvement in the uptake of formal methods, it is still the case that the vast majori...
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We extend static filtering in [8], a query optimization strategy based on seminaive evaluation on system graphs, so that it can efficiently handle stratified programs without extra overhead. The computation of static ...
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We extend static filtering in [8], a query optimization strategy based on seminaive evaluation on system graphs, so that it can efficiently handle stratified programs without extra overhead. The computation of static filters is formalized as a transformation so that the least fixed point of the transformation can be the static filters. The static filtering on stratified programs is shown to be complete with respect to the iterated fixed point semantics.
A syntactic error repair model is proposed, and is defined as a partial function from strings to sentences. The replacement of a substring of a string with a substring of a sentence is described by a repair pattern, w...
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A syntactic error repair model is proposed, and is defined as a partial function from strings to sentences. The replacement of a substring of a string with a substring of a sentence is described by a repair pattern, which is roughly a pair of strings of grammar symbols. The model can be efficient with some restriction on repair patterns. An LR-based implementation of the model is discussed.
Mixin-based inheritance is an inheritance technique that has been shown to subsume a variety of different inheritance mechanisms. It is based directly upon an incremental modification model of inheritance. This paper ...
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The real time process algebra of Baeten and Bergstra [Formal Aspects of Computing, 3, 142-188 (1991)] is extended to real space by requiring the presence of spatial coordinates for each atomic action, in addition to t...
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Automatic evaluation of drawing-to-CAD conversion performance is addressed. The generating model of artificial images in the domain of cadastral maps was built. The proposed model was close to the authentic drawings o...
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Automatic evaluation of drawing-to-CAD conversion performance is addressed. The generating model of artificial images in the domain of cadastral maps was built. The proposed model was close to the authentic drawings on the level of graphic primitives and on the level of map understanding. The shape of the parcel was characterized by the number of corners, line lengths and respective angles. The model of a house consists of 12 random variables, while the 13th variable describes the location of the house in a parcel. The parameters of probability distributions have been estimated from the sample of 115 parcels and 127 houses. The goodness-of-fit for all distributions was very high.< >
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