Harsha Kumara Moraliyage

Mr. Harsha Kumara Moraliyage

Centre for Data Analytics and Cognition, La Trobe University, Melbourne, Victoria, Australia
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Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 November 2020 in The Oncologist
Verified
Journal Article
Open access
PDF file
HMHarsha Kumara Moraliyage
Harsha Kumara Moraliyage
DSDaswin De Silva
Daswin De Silva
WRWeranja Ranasinghe
Weranja Ranasinghe
AAAchini Adikari
Achini Adikari
DADamminda Alahakoon
Damminda Alahakoon
DBDamien Bolton
Damien Bolton
The lockdown measures of the ongoing COVID-19 pandemic have disengaged patients with cancer from formal health care settings, leading to an increased use of social media platforms to address unmet needs and expectations. Although remote health technologies have addressed some of the medical needs, the emotional and mental well-being of these patients remain underexplored and underreported. We used a validated artificial intelligence framework to conduct a comprehensive real-time analysis of two data sets of 2,469,822 tweets and 21,800 discussions by patients with cancer during this pandemic. Lung and breast cancer are most prominently discussed, and the most concerns were expressed regarding delayed diagnosis, cancellations, missed treatments, and weakened immunity. All patients expressed significant negative sentiment, with fear being the predominant emotion. Even as some lockdown measures ease, it is crucial that patients with cancer are engaged using social media platforms for real-time identification of issues and the provision of informational and emotional support.

1 January 2022 in Future Generation Computer Systems
Verified
Journal Article
Closed access
AAAchini Adikari
Achini Adikari
DSDaswin de Silva
Daswin de Silva
HMHarsha Kumara Moraliyage
Harsha Kumara Moraliyage
DADamminda Alahakoon
Damminda Alahakoon
JWJiahui Wong
Jiahui Wong
YLYvonne Leung
Yvonne Leung

21 July 2025 in Applied System Innovation
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Journal Article
Open access
PDF file
LGLakshitha Gunasekara
Lakshitha Gunasekara
NENicole El-Haber
Nicole El-Haber
SNSwati Nagpal
Swati Nagpal
HMHarsha Kumara Moraliyage
Harsha Kumara Moraliyage
ZIZafar Issadeen
Zafar Issadeen
DSDaswin De Silva
Daswin De Silva
The accelerated development of Artificial Intelligence (AI) capabilities and systems is driving a paradigm shift in productivity, innovation and growth. Despite this generational opportunity, AI is fraught with significant challenges and risks. To address these challenges, responsible AI has emerged as a modus operandi that ensures protections while not stifling innovations. Responsible AI minimizes risks to people, society, and the environment. However, responsible AI principles and practice are impacted by ‘principle proliferation’ as they are diverse and distributed across the applications, stakeholders, risks, and downstream impact of AI systems. This article presents a systematic review of responsible AI principles and practice with the objectives of discovering the current state, the foundations and the need for responsible AI, followed by the principles of responsible AI, and translation of these principles into the responsible practice of AI. Starting with 22,711 relevant peer-reviewed articles from comprehensive bibliographic databases, the review filters through to 9700 at de-duplication, 5205 at abstract screening, 1230 at semantic screening and 553 at final full-text screening. The analysis of this final corpus is presented as six findings that contribute towards the increased understanding and informed implementation of responsible AI.

5 December 2022 in Sensors
Verified
Journal Article
Open access
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HMHarsha Kumara Moraliyage
Harsha Kumara Moraliyage
SDSanoshi Dahanayake
Sanoshi Dahanayake
DSDaswin De Silva
Daswin De Silva
NMNishan Mills
Nishan Mills
PRPrabod Rathnayaka
Prabod Rathnayaka
AJAndrew Jennings
Andrew Jennings
Rapid urbanization across the world has led to an exponential increase in demand for utilities, electricity, gas and water. The building infrastructure sector is one of the largest global consumers of electricity and thereby one of the largest emitters of greenhouse gas emissions. Reducing building energy consumption directly contributes to achieving energy sustainability, emissions reduction, and addressing the challenges of a warming planet, while also supporting the rapid urbanization of human society. Energy Conservation Measures (ECM) that are digitalized using advanced sensor technologies are a formal approach that is widely adopted to reduce the energy consumption of building infrastructure. Measurement and Verification (M&V) protocols are a repeatable and transparent methodology to evaluate and formally report on energy savings. As savings cannot be directly measured, they are determined by comparing pre-retrofit and post-retrofit usage of an ECM initiative. Given the computational nature of M&V, artificial intelligence (AI) algorithms can be leveraged to improve the accuracy, efficiency, and consistency of M&V protocols. However, AI has been limited to a singular performance metric based on default parameters in recent M&V research. In this paper, we address this gap by proposing a comprehensive AI approach for M&V protocols in energy-efficient infrastructure. The novelty of the framework lies in its use of all relevant data (pre and post-ECM) to build robust and explainable predictive AI models for energy savings estimation. The framework was implemented and evaluated in a multi-campus tertiary education institution setting, comprising 200 buildings of diverse sensor technologies and operational functions. The results of this empirical evaluation confirm the validity and contribution of the proposed framework for robust and explainable M&V for energy-efficient building infrastructure and net zero carbon emissions.

23 May 2022 in IEEE Access
Verified
Journal Article
Open access
HMHarsha Kumara Moraliyage
Harsha Kumara Moraliyage
VSVidura Sumanasena
Vidura Sumanasena
DSDaswin De Silva
Daswin De Silva
Rashmika NawaratneRashmika Nawaratne
Rashmika Nawaratne
LSLina Sun
Lina Sun
DADamminda Alahakoon
Damminda Alahakoon
The dark web has been confronted with a significant increase in the number and variety of onion services of illegitimate and criminal intent. Anonymity, encryption, and the technical complexity of the Tor network are key challenges in detecting, disabling, and regulating such services. Instead of tracking an operational location, cyber threat intelligence can become more proactive by utilizing recent advances in Artificial Intelligence (AI) to detect and classify onion services based on the content, as well as provide an interpretation of the classification outcome. In this paper, we propose a novel multimodal classification approach based on explainable deep learning that classifies onion services based on the image and text content of each site. A Convolutional Neural Network with Gradient-weighted Class Activation Mapping (Grad-CAM) and a pre-trained word embedding with Bahdanau additive attention are the core capabilities of this approach that classify and contextualize the representative features of an onion service. We demonstrate the superior classification accuracy of this approach as well as the role of explainability in decision-making that collectively enables proactive cyber threat intelligence in the dark web.

18 April 2024 in Energies
Verified
Journal Article
Open access
PDF file
AMAmali Matharaarachchi
Amali Matharaarachchi
WMWishmitha Mendis
Wishmitha Mendis
KRKanishka Randunu
Kanishka Randunu
DSDaswin De Silva
Daswin De Silva
GGGihan Gamage
Gihan Gamage
AJAndrew Jennings
Andrew Jennings
Internet-of-Things (IoT) technologies have been steadily adopted and embedded into energy infrastructure following the rapid transformation of energy grids through distributed consumption, renewables generation, and battery storage. The data streams produced by such energy IoT infrastructure can be extracted, processed, analyzed, and synthesized for informed decision-making that delivers optimized grid operations, reduced costs, and net-zero carbon emissions. However, the voluminous nature of such data streams leads to an equally large number of analysis outcomes that have proven ineffective in decision-making by energy grid operators. This gap can be addressed by introducing artificial intelligence (AI) chatbots, or more formally conversational agents, to proactively assist human operators in analyzing and identifying decision opportunities in energy grids. In this research, we draw upon the recent success of generative AI for optimized AI chatbots with natural language understanding and generation capabilities for the complex information needs of energy IoT infrastructure and net-zero emissions. The proposed approach for optimized generative AI chatbots is composed of six core modules: Intent Classifier, Knowledge Extractor, Database Retriever, Cached Hierarchical Vector Storage, Secure Prompting, and Conversational Interface with Language Generator. We empirically evaluate the proposed approach and the optimized generative AI chatbot in the real-world setting of an energy IoT infrastructure deployed at a large, multi-campus tertiary education institution. The results of these experiments confirm the contribution of generative AI chatbots in simplifying the complexity of energy IoT infrastructure for optimized grid operations and net-zero carbon emissions.