On the interplay between cyber and physical spaces for adaptive security

C Tsigkanos, L Pasquale, C Ghezzi… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
Ubiquitous computing is resulting in a proliferation of cyber-physical systems that host or
manage valuable physical and digital assets. These assets can be harmed by malicious …

BigraphER: rewriting and analysis engine for bigraphs

M Sevegnani, M Calder - … Conference, CAV 2016, Toronto, ON, Canada …, 2016 - Springer
BigraphER is a suite of open-source tools providing an efficient implementation of rewriting,
simulation, and visualisation for bigraphs, a universal formalism for modelling interacting …

[HTML][HTML] Bigraphs with sharing

M Sevegnani, M Calder - Theoretical Computer Science, 2015 - Elsevier
Abstract Bigraphical Reactive Systems (BRS) were designed by Milner as a universal
formalism for modelling systems that evolve in time, locality, co-locality and connectivity. But …

Architecting dynamic cyber-physical spaces

C Tsigkanos, T Kehrer, C Ghezzi - Computing, 2016 - Springer
We increasingly live in cyber-physical spaces: spaces that are both physical and digital, and
where the two aspects are intertwined. Cyber-physical spaces may exhibit a range of …

On lions, impala, and bigraphs: Modelling interactions in physical/virtual spaces

S Benford, M Calder, T Rodden… - ACM Transactions on …, 2016 - dl.acm.org
While HCI has a long tradition of formally modelling task-based interactions with graphical
user interfaces, there has been less progress in modelling emerging ubiquitous computing …

Probabilistic bigraphs

B Archibald, M Calder, M Sevegnani - Formal Aspects of Computing, 2022 - dl.acm.org
Bigraphs are a universal computational modelling formalism for the spatial and temporal
evolution of a system in which entities can be added and removed. We extend bigraphs to …

Conditional bigraphs

B Archibald, M Calder, M Sevegnani - International Conference on Graph …, 2020 - Springer
Bigraphs are a universal graph based model, designed for analysing reactive systems that
include spatial and non-spatial (eg communication) relationships. Bigraphs evolve over time …

[HTML][HTML] Computing (optimal) embeddings of directed bigraphs

A Chiapperini, M Miculan, M Peressotti - Science of Computer …, 2022 - Elsevier
Bigraphs and bigraphical reactive systems are a well-known meta-model successfully used
for formalizing a wide range of models and situations, such as process calculi, service …

BigraphTalk: Verified design of IoT applications

B Archibald, MZ Shieh, YH Hu… - IEEE Internet of …, 2020 - ieeexplore.ieee.org
Graphical Internet of Things (IoT) device management platforms, such as IoTtalk, make it
easy to describe interactions between IoT devices. Applications are defined by dragging …

Modelling and verification of large-scale sensor network infrastructures

M Sevegnani, M Kabác, M Calder… - 2018 23rd International …, 2018 - ieeexplore.ieee.org
Large-scale wireless sensor networks (WSN) are increasingly deployed and an open
question is how they can support multiple applications. Networks and sensing devices are …