Nishanth Sastry
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View article: Randomised controlled trial to measure effectiveness and cost-effectiveness of a digital social intervention promoted by primary care clinicians to adults with asthma to improve asthma control: protocol
Randomised controlled trial to measure effectiveness and cost-effectiveness of a digital social intervention promoted by primary care clinicians to adults with asthma to improve asthma control: protocol Open
Introduction In the UK, approximately 5.4 million adults live with asthma, of whom one in five have an uncontrolled form. Uncontrolled asthma reduces quality of life and increases healthcare use. Engaging with peers through online health c…
View article: The Role of the Internet of Things (IoT) in Achieving the United Nations (UN) Sustainable Development Goals (SDGs) - A Systematic Review
The Role of the Internet of Things (IoT) in Achieving the United Nations (UN) Sustainable Development Goals (SDGs) - A Systematic Review Open
As the 2030 deadline for achieving the Sustainable Development Goals (SDGs) approaches, the Internet of Things (IoT) has become a key enabler of sustainable development. This article presents a systematic review of IoT-SDG research from 20…
View article: Supporting Socially Constrained Private Communications with SecureWhispers
Supporting Socially Constrained Private Communications with SecureWhispers Open
Rapidly changing social norms and national, legal, and political conditions socially constrain people from discussing sensitive topics such as sexuality or religion. Such constrained, vulnerable minorities are often worried about inadverte…
View article: Protecting Vulnerable Voices: Synthetic Dataset Generation for Self-Disclosure Detection
Protecting Vulnerable Voices: Synthetic Dataset Generation for Self-Disclosure Detection Open
Social platforms such as Reddit have a network of communities of shared interests, with a prevalence of posts and comments from which one can infer users' Personal Information Identifiers (PIIs). While such self-disclosures can lead to rew…
View article: Conversation Kernels: A Flexible Mechanism to Learn Relevant Context for Online Conversation Understanding
Conversation Kernels: A Flexible Mechanism to Learn Relevant Context for Online Conversation Understanding Open
Understanding online conversations has attracted research attention with the growth of social networks and online discussion forums. Content analysis of posts and replies in online conversations is difficult because each individual utteran…
View article: Conversation Kernels: A Flexible Mechanism to Learn Relevant Context for Online Conversation Understanding
Conversation Kernels: A Flexible Mechanism to Learn Relevant Context for Online Conversation Understanding Open
Understanding online conversations has attracted research attention with the growth of social networks and online discussion forums. Content analysis of posts and replies in online conversations is difficult because each individual utteran…
View article: Cryo-EM structure of the <i>Pseudomonas aeruginosa</i> MexY multidrug efflux pump
Cryo-EM structure of the <i>Pseudomonas aeruginosa</i> MexY multidrug efflux pump Open
Pseudomonas aeruginosa , a Gram-negative pathogen, has emerged as one of the most highly antibiotic-resistant bacteria worldwide and subsequently has become a leading cause of healthcare-associated, life-threatening infections. P. aerugino…
View article: Unpacking the Layers: Exploring Self-Disclosure Norms, Engagement Dynamics, and Privacy Implications
Unpacking the Layers: Exploring Self-Disclosure Norms, Engagement Dynamics, and Privacy Implications Open
This paper characterizes the self-disclosure behavior of Reddit users across 11 different types of self-disclosure. We find that at least half of the users share some type of disclosure in at least 10% of their posts, with half of these po…
View article: Moderators’ Experiences of the Safety and Effectiveness of Patient Engagement in an Asthma Online Health Community: Exploratory Qualitative Interview Study
Moderators’ Experiences of the Safety and Effectiveness of Patient Engagement in an Asthma Online Health Community: Exploratory Qualitative Interview Study Open
Background Among 5.4 million people receiving treatment for asthma in the United Kingdom, more than 2 million experience suboptimal control, leading to the use of health care services and resulting costs as well as poorer quality of life. …
View article: Time-Dependent Network Topology Optimization for LEO Satellite Constellations
Time-Dependent Network Topology Optimization for LEO Satellite Constellations Open
Today's Low Earth Orbit (LEO) satellite networks, exemplified by SpaceX's Starlink, play a crucial role in delivering global internet access to millions of users. However, managing the dynamic and expansive nature of these networks poses s…
View article: Making Social Platforms Accessible: Emotion-Aware Speech Generation with Integrated Text Analysis
Making Social Platforms Accessible: Emotion-Aware Speech Generation with Integrated Text Analysis Open
Recent studies have outlined the accessibility challenges faced by blind or visually impaired, and less-literate people, in interacting with social networks, in-spite of facilitating technologies such as monotone text-to-speech (TTS) scree…
View article: Revealing COVID-19's Social Dynamics: Diachronic Semantic Analysis of Vaccine and Symptom Discourse on Twitter
Revealing COVID-19's Social Dynamics: Diachronic Semantic Analysis of Vaccine and Symptom Discourse on Twitter Open
Social media is recognized as an important source for deriving insights into public opinion dynamics and social impacts due to the vast textual data generated daily and the 'unconstrained' behavior of people interacting on these platforms.…
View article: MedHalu: Hallucinations in Responses to Healthcare Queries by Large Language Models
MedHalu: Hallucinations in Responses to Healthcare Queries by Large Language Models Open
Large language models (LLMs) are starting to complement traditional information seeking mechanisms such as web search. LLM-powered chatbots like ChatGPT are gaining prominence among the general public. AI chatbots are also increasingly pro…
View article: xeoverse: A Real-time Simulation Platform for Large LEO Satellite Mega-Constellations
xeoverse: A Real-time Simulation Platform for Large LEO Satellite Mega-Constellations Open
In the evolving landscape of satellite communications, the deployment of Low-Earth Orbit (LEO) satellite constellations promises to revolutionize global Internet access by providing low-latency, high-bandwidth connectivity to underserved r…
View article: Decentralised Moderation for Interoperable Social Networks: A Conversation-Based Approach for Pleroma and the Fediverse
Decentralised Moderation for Interoperable Social Networks: A Conversation-Based Approach for Pleroma and the Fediverse Open
The recent development of decentralised and interoperable social networks (such as the "fediverse") creates new challenges for content moderators. This is because millions of posts generated on one server can easily "spread" to another, ev…
View article: Decentralised Moderation for Interoperable Social Networks: A Conversation-based Approach for Pleroma and the Fediverse
Decentralised Moderation for Interoperable Social Networks: A Conversation-based Approach for Pleroma and the Fediverse Open
The recent development of decentralised and interoperable social networks (such as the "fediverse") creates new challenges for content moderators. This is because millions of posts generated on one server can easily "spread" to another, ev…
View article: Moderators’ Experiences of the Safety and Effectiveness of Patient Engagement in an Asthma Online Health Community: Exploratory Qualitative Interview Study (Preprint)
Moderators’ Experiences of the Safety and Effectiveness of Patient Engagement in an Asthma Online Health Community: Exploratory Qualitative Interview Study (Preprint) Open
BACKGROUND Among 5.4 million people receiving treatment for asthma in the United Kingdom, more than 2 million experience suboptimal control, leading to the use of health care services and resulting costs as well as poorer quality of life.…
View article: Shrinking VOD Traffic via Rényi-Entropic Optimal Transport
Shrinking VOD Traffic via Rényi-Entropic Optimal Transport Open
In response to the exponential surge in Internet Video on Demand (VOD) traffic, numerous research endeavors have concentrated on optimizing and enhancing infrastructure efficiency. In contrast, this paper explores whether users' demand pat…
View article: Preserving Privacy of Vulnerable Users across Heterogeneous Sensitive Sensor Data Streams using Smart Contracts
Preserving Privacy of Vulnerable Users across Heterogeneous Sensitive Sensor Data Streams using Smart Contracts Open
This paper is concerned with helping people who are vulnerable during important transitions in life, such as 'coming out' as LGBTQIA+, experiencing serious illness, undergoing relationship breakdown etc. Rich sensor streams derived from so…
View article: Dissecting the Performance of Satellite Network Operators
Dissecting the Performance of Satellite Network Operators Open
The rapid growth of satellite network operators (SNOs) has revolutionized broadband communications, enabling global connectivity and bridging the digital divide. As these networks expand, it is important to evaluate their performance and e…
View article: HateRephrase: Zero- and Few-Shot Reduction of Hate Intensity in Online Posts using Large Language Models
HateRephrase: Zero- and Few-Shot Reduction of Hate Intensity in Online Posts using Large Language Models Open
Hate speech has become pervasive in today's digital age. Although there has been considerable research to detect hate speech or generate counter speech to combat hateful views, these approaches still cannot completely eliminate the potenti…
View article: AI in the Gray: Exploring Moderation Policies in Dialogic Large Language Models vs. Human Answers in Controversial Topics
AI in the Gray: Exploring Moderation Policies in Dialogic Large Language Models vs. Human Answers in Controversial Topics Open
The introduction of ChatGPT and the subsequent improvement of Large Language\nModels (LLMs) have prompted more and more individuals to turn to the use of\nChatBots, both for information and assistance with decision-making. However,\nthe in…