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This paper reports on the development of the Cloud Oriented Data Analytics (CODA) framework which has functions for composing, managing, and processing workflows for data analytics in cloud computing. The framework provides a number of reusable software components for data analytics to users which can be composed as workflows through well-known workflow(More)
There are many ways to build a predictive model from data. Besides the numerous classification or regression algorithms to choose from, there are countless possibilities of useful data transformation prior to modeling. To assist in discovering good predictive analytics workflows, we introduced recently a collaborative analytics system that allows workflow(More)
Disruption Tolerant Networks (DTNs) can be characterized by intermittent network connectivity and unguaranteed end-to-end paths. Replication based routing is often used to improve the message delivery but it suffers from high traffic overhead and uncontrolled forwarding paths. In this paper, we propose a Multi-Policy Link State Routing (MPLSR) protocol to(More)
This paper proposes a multi-tenant workflow framework that allows users to create data analytic workflows whose tasks are efficiently scheduled and distributed in cloud computing environment. We provide a demo of an event room assignment (ERA) as a test application of the framework. The ERA dynamically and automatically assigns registered events (e.g.,(More)
In this paper, we propose a PEP based Mail Proxy to enable mobile users to access email services over disruptive links. The proposed scheme offers a disruption tolerant proxy service for email client to communicate over intermittently connected links. The proposed scheme is transparent to the email client and requires no modification or configuration on the(More)
This paper introduces a new architecture for OpenFlow deployment across international boundaries which are more cost effective and scalable called Hybrid OpenFlow Networking (HON) architecture. The HON architecture divides the OpenFlow network into three domains: Wide Area domain, Local Area domain and User domain. Wide Area domain forms the OpenFlow(More)
This paper proposes a Hybrid Protocol for Application Level Multicast with Dual Metric (HPAM-D) for live video streaming. HPAM-D constructs data distribution trees based on two performance metrics, namely, latency to source and loss rate experienced by the clients. The protocol is evaluated against the latency based single-metric HPAM and a modified HPAM-L(More)
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