Advancing Research in Information and Communication Technology - IFIP's Exciting First 60+ Years, Views from the Technical Committees and Working Groups
Advancing Research in Information and Communication Technology - IFIP's Exciting First 60+ Years, Views from the Technical Committees and Working Groups
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推进信息和通信技术研究 - IFIP 激动人心的第一个 60 年,技术委员会和工作组的观点
DOI:
10.1007/978-3-030-81701-5_2
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Bonchi F
中科院分区:
文献类型:
--
作者:
Bonchi F
Signal flow graphs are combinatorial models for linear dynamical systems, playing a foundational role in control theory and engineering. In this survey, we overview a series of works [3, 10, 11, 13, 15–18, 31, 51, 63] that develop a compositional theory of these structures, and explore several striking insights emerging from this approach. In particular, the use ofstring diagrams, a categorical syntax for graphical models, allows to switch from the traditional combinatorial treatment of signal flow graphs to an algebraic characterisation. Within this framework, signal flow graphs may then be treated as a fully-fledged (visual) programming language, and equipped with important meta-theoretical properties, such as a complete axiomatisation and a full abstraction theorem. Moreover, the abstract viewpoint offered by string diagrams reveals that the same algebraic structures modelling linear dynamical systems may also be used to interpret diverse kinds of models, such as electrical circuits and Petri nets.In this respect, our work is a contribution tocompositional network theory(see e.g., [1, 2, 4–6, 9, 12, 20, 21, 23, 24, 26, 28–30, 32, 37, 49, 59], ?), an emerging multidisciplinary research programme aiming at a uniform compositional study of different sorts of computational models.