Gareth Tyson

Publications174
h-index29
Citations2,640
Highly Influential Citations152
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Optimal cache allocation for Content-Centric Networking
TLDR
This work focuses on the cache allocation problem: namely, how to distribute the cache capacity across routers under a constrained total storage budget for the network, and formulate this problem as a content placement problem and obtains the exact optimal solution by a two-step method.
Open Connect Everywhere: A Glimpse at the Internet Ecosystem through the Lens of the Netflix CDN
TLDR
This paper studies the infrastructure deployment of a content hypergiant, Netflix, and shows that the combined worldwide IXP substrate is the major corner stone of its Content Delivery Network.
Leveraging Data Science to Combat COVID-19: A Comprehensive Review
TLDR
The rapidly growing body of recent research is reviewed, and a bibliometric analysis of the papers produced in this short span of time is presented, highlighting common challenges and pitfalls observed across the surveyed works.
A survey of mobility in information-centric networks: challenges and research directions
TLDR
This paper presents a survey of some of the key ICN technologies, alongside their individual approaches to mobility, before discussing important future research questions that must be answered.
Design and Evaluation of the Optimal Cache Allocation for Content-Centric Networking
TLDR
This work focuses on the cache allocation problem, namely, how to distribute the cache capacity across routers under a constrained total storage budget for the network and proposes a suboptimal heuristic method based on node centrality, which is more practical in dynamic networks with frequent content publishing.
An Empirical Study of the Cost of DNS-over-HTTPS
TLDR
It is found that overheads incurred by the additional layers of the DoH transport only have limited impact on page load times, suggesting that it is possible to obtain the improved security of DoH with only marginal performance impact.
Unraveling BitTorrent's File Unavailability: Measurements and Analysis
TLDR
The study confirms the conclusion from previous works that seeders have a significant impact on both performance and availability but presents some crucial new findings: the presence of seeders is not the sole factor involved in file availability, and BitTorrent availability is discontinuous, operating in cycles of temporary unavailability.
WhatsApp, Doc? A First Look at WhatsApp Public Group Data
TLDR
This paper presents a generalisable data collection methodology, and a publicly available dataset for use by other researchers, to explore the feasibility of collecting and using WhatsApp data for social science research.
Can SPDY really make the web faster?
TLDR
The impact of network characteristics and website infrastructure on SPDY's potential page loading benefits are identified, finding that these factors are decisive for an optimal SPDY deployment strategy and feed into the wider debate regarding the impact of future protocols.
Internet Scale User-Generated Live Video Streaming: The Twitch Case
TLDR
The Twitch infrastructure is explored to understand how it manages live streaming delivery to an Internet-wide audience, and it is found Twitch manages a geo-distributed infrastructure, with presence in four continents.
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