OWL-S Service Profile provides a way to describe services offered by providers and services needed by requesters. But some items in the Profile are not very suitable for describing a requester's demands while some...
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ISBN:
(纸本)9781577353386
OWL-S Service Profile provides a way to describe services offered by providers and services needed by requesters. But some items in the Profile are not very suitable for describing a requester's demands while some important information about the requester himself such as his identity which may play important role in precondition match are not considered in the Service Profile. In this paper we define an OWL compatible Request Profile ontology especially for service requesters to describe their special properties and their expectation about a service. Then a match algorithm is proposed to match service request described in Request Profile with service advertise described in Service Profile. The experiment results show that the match algorithm is efficient.
An ordination-fuzzy min-max neural network (OFMM) based on non-metric multidimensional scaling (MDS) is proposed to solve the classification problems of unlabelled input pattern. Firstly, all the input patterns are so...
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An ordination-fuzzy min-max neural network (OFMM) based on non-metric multidimensional scaling (MDS) is proposed to solve the classification problems of unlabelled input pattern. Firstly, all the input patterns are sorted by MDS to get their similarity measures. Then these measures are used to supervise the following expansion and contraction stage of hyperboxes for classification. OFMM shows the improvements in the validity of unlabelled patterns classification, the network structure, and training time. The experimental results on standard dataset demonstrate that OFMM is a practical and effective classifier which is superior to the traditional general-fuzzy min -max neural network (GFMM).
In this paper we propose a novel edge-based, fast and effective stereo matching method. If utilizes various geometrical and local area constraints as well as structural information among edge segments to perform a con...
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In this paper we propose a novel edge-based, fast and effective stereo matching method. If utilizes various geometrical and local area constraints as well as structural information among edge segments to perform a constraint-directed matching. By employing a heuristic labelling technique, the combinatorial search for isomorphic graphs is greatly reduced in the matching process. The implementation and experimental results are presented to show the efficacy of the proposed method.
Ant colony optimization (ACO for short) has been proved a successful meta-heuristic by a huge of empirical studies. This paper discusses the termination criteria of ACO and therefore provides research ideas to other m...
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Ant colony optimization (ACO for short) has been proved a successful meta-heuristic by a huge of empirical studies. This paper discusses the termination criteria of ACO and therefore provides research ideas to other meta-heuristics. A general discussion about four types of termination criteria has been firstly discussed in this article. Then some measures of convergence based on pheromone have been introduced. And a new termination criterion based on Bayesian approach is presented. Finally a new convergence proof for a class of ACO algorithms is presented.
Distance histogram has been used for shape representation and retrieval. Though it is efficient and effective, it looses the spatial information of a contour. In this paper, the pixels of a contour are classified into...
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Distance histogram has been used for shape representation and retrieval. Though it is efficient and effective, it looses the spatial information of a contour. In this paper, the pixels of a contour are classified into different types, convex, concave and smooth pixels. In addition to distance histograms, two novel descriptors named spatial location distribution (SLD) and spatial distribution entropy (SDE) are introduced. These descriptors have powerful descriptive power for contour with more spatial information. Comparisons are conducted between our method and several other feature descriptors. The results show that the new method is efficient and it provides noticeable improvement to the performance of shape retrieval.
Superimpose one protein tertiary structure to another can help to find similarity between them and further identify functional and evolutionary relationships. We first extract invariant features under rigid body trans...
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We consider the problem of a searcher that looks, for example, for a lost flashlight in a dusty environment. The search agent finds the flashlight as soon as it crosses the ray emanating from the flashlight, and in or...
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FAQ(Frequently-asked Question) is a good question and answer model to realize business advisory system in restricted domain.A FAQ question answering system model is presented in this *** the help of the idea of ontolo...
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FAQ(Frequently-asked Question) is a good question and answer model to realize business advisory system in restricted domain.A FAQ question answering system model is presented in this *** the help of the idea of ontology, a knowledge base is constructed in the *** the help of language KDML (Knowledge Database Mark-up Language) of HowNet,the domain ontology and the relationship of it are defined and described, and the fusion of domain knowledge base (Domain HowNet) and common knowledge base(HowNet) is *** this basis, a question similarity calculation method, which makes use of the characteristics of the domain question and combines lexical relationship, syntactic interdependent relationship and the semantic relationship of domains among question sentences, is *** based on the question similarity calculation, retrieval of related question from the candidate question set and extraction of answers can be implemented with this *** result of Yunnan tourism question-answer model experiment shows that this method is feasible and effective.
In this paper, a 3D polar-radius surface moment is proposed, and is used for 3D model retrieval. 3D polar-radius surface moments are new moment invariants based on 3D polar-radius moments including the invariance on s...
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In this paper, a 3D polar-radius surface moment is proposed, and is used for 3D model retrieval. 3D polar-radius surface moments are new moment invariants based on 3D polar-radius moments including the invariance on shift, rotation and scale transforms. Compared to previous methods to compute such moments, the computational complexity for calculating 3D moments can be decreased considerably. With the help of these moment invariants, the 3D models are distinguished accurately.
By use of the properties of ant colony algorithm and genetic algorithm, a hybrid algorithm is proposed to solve the traveling salesman problems. First, it adopts genetic algorithm to give information pheromone to dist...
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ISBN:
(纸本)7900719229
By use of the properties of ant colony algorithm and genetic algorithm, a hybrid algorithm is proposed to solve the traveling salesman problems. First, it adopts genetic algorithm to give information pheromone to distribute. Second, it makes use of the ant colony algorithm to get several solutions through information pheromone accumulation and renewal. Finally, by using across and mutation operation of genetic algorithm, the effective solutions are obtained. Compare with the simulated annealing algorithm, the standard genetic algorithm, the standard ant colony algorithm, and statistics initial ant colony algorithm, all the 16 hybrid algorithms are proved effective. Especially the hybrid algorithm with across strategy B and mutation strategy B is a simple and effective better algorithm than others.
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