Shanika Karunasekera

Propagation2Vec: Embedding partial propagation networks for explainable fake news early detection

A Silva, Y Han, L Luo, S Karunasekera, C Leckie

Journal article  |  2021  |  Information Processing & Management

Many recent studies have demonstrated that the propagation patterns of news on social media can facilitate the detection of fake n..

SLA-based Scheduling of Spark Jobs in Hybrid Cloud Computing Environments

MT Islam, H Wu, S Karunasekera, R Buyya

Journal article  |  2021  |  IEEE Transactions on Computers

Big data frameworks such as Apache Spark are becoming prominent to perform large-scale data analytics jobs. However, local or on-p..

Platooning Graph for Safer Traffic Management

L Muthugama, S Karunasekera, E Tanin

Conference Proceedings  |  2020  |  Proceedings of the 28th International Conference on Advances in Geographic Information Systems

Tracking Group Movement in Location Based Social Networks

S Kannangara, H Xie, E Tanin, A Harwood, S Karunasekera

Conference Proceedings  |  2020  |  Proceedings of the 28th International Conference on Advances in Geographic Information Systems

We study the problem of tracking the movement of groups using sparse trajectory data extracted from Location Based Social Networks..

METEOR: Learning Memory and Time Efficient Representations from Multi-modal Data Streams

A Silva, S Karunasekera, C Leckie, L Luo

Conference Proceedings  |  2020  |  Proceedings of the 29th ACM International Conference on Information & Knowledge Management

Many learning tasks involve multi-modal data streams, where continuous data from different modes convey a comprehensive descriptio..

ECSNeT : A simulator for distributed stream processing on edge and cloud environments

G Amarasinghe, MD de Assunção, A Harwood, S Karunasekera

Journal article  |  2020  |  Future Generation Computer Systems

The objective of Internet of Things (IoT) is ubiquitous computing. As a result many computing enabled, connected devices are deplo..

Introducing Diversion Graph for Real-Time Spatial Data Analysis with Location Based Social Networks

S Kannangara, H Xie, E Tanin, A Harwood, S Karunasekera

Conference Proceedings  |  2020  |  Leibniz International Proceedings in Informatics, LIPIcs

A utilization model for optimization of checkpoint intervals in distributed stream processing systems

S Jayasekara, A Harwood, S Karunasekera

Journal article  |  2020  |  Future Generation Computer Systems

State-of-the-art distributed stream processing systems such as Apache Flink and Storm have recently included checkpointing to prov..

LN-SNE: Log-Normal Distributed Stochastic Neighbor Embedding for Anomaly Detection

Zahra Ghafoori, Sarah M Erfani, James C Bezdek, Shanika Karunasekera, Christopher Leckie

Journal article  |  2020  |  IEEE Transactions on Knowledge and Data Engineering

We present a new unsupervised dimensionality reduction technique, called LN-SNE, for anomaly detection. LN-SNE generates a paramet..

Cost-efficient dynamic scheduling of big data applications in apache spark on cloud

MT Islam, SN Srirama, S Karunasekera, R Buyya

Journal article  |  2020  |  Journal of Systems and Software

Job scheduling is one of the most crucial components in managing resources, and efficient execution of big data applications. Spec..