5 research outputs found
Leveraging Edge Computing through Collaborative Machine Learning
The Internet of Things (IoT) offers the ability
to analyze and predict our surroundings through sensor
networks at the network edge. To facilitate this predictive
functionality, Edge Computing (EC) applications are developed
by considering: power consumption, network lifetime and
quality of context inference. Humongous contextual data from
sensors provide data scientists better knowledge extraction,
albeit coming at the expense of holistic data transfer that
threatens the network feasibility and lifetime. To cope with this,
collaborative machine learning is applied to EC devices to (i)
extract the statistical relationships and (ii) construct regression
(predictive) models to maximize communication efficiency. In
this paper, we propose a learning methodology that improves
the prediction accuracy by quantizing the input space and
leveraging the local knowledge of the EC devices
Using Genetic Programming to Build Self-Adaptivity into Software-Defined Networks
Self-adaptation solutions need to periodically monitor, reason about, and
adapt a running system. The adaptation step involves generating an adaptation
strategy and applying it to the running system whenever an anomaly arises. In
this article, we argue that, rather than generating individual adaptation
strategies, the goal should be to adapt the control logic of the running system
in such a way that the system itself would learn how to steer clear of future
anomalies, without triggering self-adaptation too frequently. While the need
for adaptation is never eliminated, especially noting the uncertain and
evolving environment of complex systems, reducing the frequency of adaptation
interventions is advantageous for various reasons, e.g., to increase
performance and to make a running system more robust. We instantiate and
empirically examine the above idea for software-defined networking -- a key
enabling technology for modern data centres and Internet of Things
applications. Using genetic programming,(GP), we propose a self-adaptation
solution that continuously learns and updates the control constructs in the
data-forwarding logic of a software-defined network. Our evaluation, performed
using open-source synthetic and industrial data, indicates that, compared to a
baseline adaptation technique that attempts to generate individual adaptations,
our GP-based approach is more effective in resolving network congestion, and
further, reduces the frequency of adaptation interventions over time. In
addition, we show that, for networks with the same topology, reusing over
larger networks the knowledge that is learned on smaller networks leads to
significant improvements in the performance of our GP-based adaptation
approach. Finally, we compare our approach against a standard data-forwarding
algorithm from the network literature, demonstrating that our approach
significantly reduces packet loss.Comment: arXiv admin note: text overlap with arXiv:2205.0435