A Top-k QoS-Optimal Service Composition Approach Under Dynamic Environment

2021 ◽  
pp. 597-609
Author(s):  
Cheng Tian ◽  
Zhao Zhang ◽  
Sha Yang ◽  
Shuxin Huang ◽  
Han Sun ◽  
...  
Keyword(s):  
Service Composition ◽  
Dynamic Environment ◽  
Optimal Service

Effective QoS Aware Web Service Composition in Dynamic Environment

2011 ◽  
pp. 101-113 ◽  
Author(s):  
Peter Bartalos ◽  
Mária Bieliková
Keyword(s):  
Web Service ◽  
Service Composition ◽  
Dynamic Environment ◽  
Web Service Composition

scholarly journals A Top-K QoS-Optimal Service Composition Approach Based on Service Dependency Graph

2021 ◽  
Vol 33 (3) ◽  
pp. 50-68
Author(s):  
Baili Zhang ◽  
Kejie Wen ◽  
Jianhua Lu ◽  
Mingjun Zhong
Keyword(s):  
Web Service ◽  
Service Composition ◽  
Dependency Graph ◽  
The Internet ◽  
Backtracking Search ◽  
Time Performance ◽  
Optimal Service ◽  
Dependency Model ◽  
Iot Devices ◽  
The Relationship

With the development of internet of things (IoT) technology, servitization of IoT device functions has become a trend. The cooperation between IoT devices can be equivalent to web service composition. However, current service composition approaches applied in the internet cannot work well in IoT environments due to weak adaptability, low accuracy, and poor time performance. This paper, based on service dependency graph, proposes a top-k QoS-optimal service composition approach suitable for IoT. It aims to construct the relationship between services by applying the service dependency model and to reduce the traversal space through effective filtering strategies. On the basis of a composition path traversal sequence, the generated service composition can be represented directly to avoid backtracking search. Meanwhile, the redundant services can be removed from the service composition with the help of dynamic programming. Experiments show that the approach can obtain the top-k QoS-optimal service composition and better time performance.

scholarly journals A modified discrete invasive weed algorithm for optimal service composition in cloud manufacturing systems

2018 ◽  
Vol 17 ◽  
pp. 403-410 ◽  
Author(s):  
Hamed Bouzary ◽  
F. Frank Chen ◽  
Krishnan Krishnaiyer
Keyword(s):  
Service Composition ◽  
Manufacturing Systems ◽  
Cloud Manufacturing ◽  
Invasive Weed ◽  
Optimal Service

QoS Correlation-based Service Composition Algorithm for Multi-constraint Optimal Path

2021 ◽  
Author(s):  
Jian Yu ◽  
Zhixing Lin ◽  
Qiong Yu ◽  
Xiangmei Xiao
Keyword(s):  
Service Composition ◽  
Optimal Path ◽  
Path Selection ◽  
Approximate Algorithm ◽  
Solution Path ◽  
Network Service ◽  
Integrated Network ◽  
Qos Guarantee ◽  
Optimal Service

Abstract With the development of network service integration, in order to obtain a better quality of service (QoS) guarantee, In this Paper,We consider the characteristics of integrated network service composition and correlation, this paper proposes a approximate algorithm based on multi-constraint optimal path selection (MCOPS). We analyses the QoS correlation criteria, correlation ratios, and Skyline algorithms to calculate the optimal path by dynamic programming, record the path nodes, and obtain the optimal service composition path that meets the user's demand. Simulation results demonstrate the good performance of the proposed algorithm in both the average calculation time and the solution path quality.

QoS-Aware Stream Federation and Optimization Based on Service Composition

2016 ◽  
Vol 12 (4) ◽  
pp. 43-67
Author(s):  
Feng Gao ◽  
Muhammad Intizar Ali ◽  
Edward Curry ◽  
Alessandra Mileo
Keyword(s):  
Quality Of Service ◽  
Service Composition ◽  
Urban Environments ◽  
Sensor Data ◽  
Optimal Service ◽  
Complex Events ◽  
System Robustness ◽  
Service Aggregation ◽  
Event Service

The proliferation of sensor devices and services along with the advances in event processing brings many new opportunities as well as challenges. It is now possible to provide, analyze and react upon real-time, complex events in urban environments. When existing event services do not provide such complex events directly, an event service composition maybe required. However, it is difficult to determine which event service candidates (or service compositions) best suit users' and applications' quality-of-service requirements. A sub-optimal service composition may lead to inaccurate event detection, lack of system robustness etc. In this paper, the authors address these issues by first providing a quality-of-service aggregation schema for complex event service compositions and then developing a genetic algorithm to efficiently create near-optimal event service compositions. The authors evaluate their approach with both real sensor data collected via Internet-of-Things services as well as synthesised datasets.

scholarly journals Towards optimal service composition upon QoS in agent cooperation

2013 ◽  
Vol 8 (2) ◽  
pp. 119
Author(s):  
Chattrakul Sombattheera ◽  
Jun Shen
Keyword(s):  
Service Composition ◽  
Optimal Service ◽  
Agent Cooperation

Automated-Workflow-Based Optimal Service Composition with Constraints - QoS and Composing consumption constraints

2011 ◽  
Vol 3 (8) ◽  
pp. 327-338
Author(s):  
Chaocan Xiang ◽  
Wendong Zhao ◽  
Li Chen ◽  
Chang Tian ◽  
Jingnan Nie
Keyword(s):  
Service Composition ◽  
Optimal Service ◽  
Consumption Constraints
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