Service selection method based on Qos (Quality of Service) perception based on optimal similarity distance
A similar distance and optimal service technology, applied in the field of web service selection, can solve problems such as weight sensitivity, complex algorithms, and inability to substantially solve multi-objective optimization problems, and achieve the effect of small calculation and low time complexity
Inactive Publication Date: 2014-06-25
ZHEJIANG UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This method has two main disadvantages: First, each Qos parameter cannot be measured equally, and even conflicts are difficult to quantify uniformly, and the result is very sensitive to the weight; second, the solution obtained by this method is a single-objective optimal solution that satisfies the constraints. solution, it cannot substantially solve the multi-objective optimization problem, and the single Qos value of the combined service may still not be able to meet the corresponding needs of users
At present, there are many Qos-aware web service selection algorithms, such as heuristic service selection algorithm, genetic algorithm, particle swarm optimization algorithm, ant colony optimization algorithm, etc., but these algorithms have some problems more or less, and some algorithms also have quite complicated
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The present invention will be further described below in conjunction with specific examples.
[0024] Such as figure 1 Shown, when utilizing the method of the present invention to begin,
[0025] 1 First judge whether the maximum and minimum values of each Qos standard are calculated, if calculated, go to step 3, if not calculated, then go to step 2;
[0026] 2 Calculate the maximum and minimum values of the next Qos standard in the candidate service pool, and go to step 1 again);
[0027] 3Construct the optimal service , each Qos value of the optimal service is the maximum or minimum value of the corresponding Qos standard;
[0028] 4. Determine whether to calculate the similarity distance between each candidate service and the optimal service ; if calculated then go to step 6), if not calculated then go to step 5);
[0029] 5 Calculate the next candidate service and the optimal service similar distance , return to step 4 to judge again;
[0030] 6 Sele...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a service selection method based on Qos (Quality of Service) perception based on optimal similarity distance, comprising the following steps: considering the weight problem of Qos by counting the similarity distance between standby service and constructed optimal service; and selecting the service with the minimum optimal service distance. The method has the following advantages: the method is visual and understandable with less counting quantity and low time complexity; and each Qos parameter is standardized so that the Qos has comparability the predilection of a user for each Qos is considered, and the weight of each Qos parameter is added.
Description
technical field [0001] The present invention is applied to the field of Qos (Quality of Service, service quality)-aware web service selection, aiming at the problem of how to select an optimal service among a large number of candidate services, especially a Qos-aware service selection based on the optimal similarity distance method. Background technique [0002] Web service is a development model that can be used to solve cross-network application integration problems. This model provides technical guarantee for the realization of "software as a service". "Software as a service" is essentially a mechanism for providing software services. This mechanism can expose programmable interfaces on the network and share the functions opened by the site through these interfaces. [0003] Web services contain two main characteristics: functional characteristics and non-functional characteristics. The functional characteristics of a service refer to the entire behavior of the service,...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H04L29/08
Inventor 邓水光刘芳李莹吴健尹建伟
Owner ZHEJIANG UNIV