Title
Assessing cloud QoS predictions using OWA in neural network methods
Abstract
Quality of Service (QoS) is the key parameter to measure the overall performance of service-oriented applications. In a myriad of web services, the QoS data has multiple highly sparse and enormous dimensions. It is a great challenge to reduce computational complexity by reducing data dimensions without losing information to predict QoS for future intervals. This paper uses an Induced Ordered Weighted Average (IOWA) layer in the prediction layer to lessen the size of a dataset and analyse the prediction accuracy of cloud QoS data. The approach enables stakeholders to manage extensive QoS data better and handle complex nonlinear predictions. The paper evaluates the cloud QoS prediction using an IOWA operator with nine neural network methods—Cascade-forward backpropagation, Elman backpropagation, Feedforward backpropagation, Generalised regression, NARX, Layer recurrent, LSTM, GRU and LSTM-GRU. The paper compares results using RMSE, MAE, and MAPE to measure prediction accuracy as a benchmark. A total of 2016 QoS data are extracted from Amazon EC2 US-West instance to predict future 96 intervals. The analysis results show that the approach significantly decreases the data size by 66%, from 2016 to 672 records with improved or equal accuracy. The case study demonstrates the approach's effectiveness while handling complexity, reducing data dimension with better prediction accuracy.
Year
DOI
Venue
2022
10.1007/s00521-022-07297-z
Neural Computing and Applications
Keywords
DocType
Volume
Computational complexity, Time-series forecasting, Cloud QoS, Deep neural network, Complex prediction, OWA, Service level agreement
Journal
34
Issue
ISSN
Citations 
17
0941-0643
1
PageRank 
References 
Authors
0.37
33
5
Name
Order
Citations
PageRank
Walayat Hussain110.37
Honghao Gao221745.24
Muhammad Raheel Raza310.37
Fethi Rabhi442750.68
Jose M Merigó510.37