Paper Info
Title
Online QoS Modeling in the Cloud: A Hybrid and Adaptive Multi-learners Approach
Abstract
Given the on-demand nature of cloud computing, managing cloud-based services requires accurate modeling for the correlation between their Quality of Service (QoS) and cloud configurations/resources. The resulted models need to cope with the dynamic fluctuation of QoS sensitivity and interference. However, existing QoS modeling in the cloud are limited in terms of both accuracy and applicability due to their static and semi-dynamic nature. In this paper, we present a fully dynamic multi-learners approach for automated and online QoS modeling in the cloud. We contribute to a hybrid learners solution, which improves accuracy while keeping model complexity adequate. To determine the inputs of QoS model at runtime, we partition the inputs space into two sub-spaces, each of which applies different symmetric uncertainty based selection techniques, and we then combine the sub-spaces results. The learners are also adaptive, they simultaneously allow several machine learning algorithms to model QoS function and dynamically select the best model for prediction on the fly. We experimentally evaluate our models using RUBiS benchmark and realistic FIFA 98 workload. The results show that our multi-learners approach is more accurate and effective in contrast to the other state-of-the-art approaches.
Year
DOI
Venue
2015
10.1109/UCC.2014.42
UCC '14 Proceedings of the 2014 IEEE/ACM 7th International Conference on Utility and Cloud Computing
Keywords
Field
DocType
Terms QoS modeling, sensitivity, QoS interference, prediction, machine learning, multi-learners, cloud computing
Computer science,Workload,On the fly,Quality of service,Real-time computing,Interference (wave propagation),Distributed computing,Model complexity,Cloud computing
Journal
Volume
ISSN
Citations 
abs/1504.03961
2373-6860
11
PageRank 
References 
Authors
0.52
12
3
Name
Order
Citations
PageRank
Tao Chen159929.93
Rami Bahsoon253460.22
Xin Yao31147.74