Reo is an interaction-centric model of concurrency for compositional specification of communication and coordination protocols. Recently, Jongmans developed techniques to compile Reo protocols into executable code. Benchmarks show that compilation of Reo protocols can produce code whose performance is comparable or even beats that of hand-crafted programs. Unfortunately, Jongmans' techniques …read more
In this talk we will combine the study of NetKAT with the study of dynamic gossip. The talk is largely based on my master thesis, but as I am currently working on this will also contain some work in progress and loose ends. NetKAT is a sound and complete network …read more
Today's formal methods are proof and type systems.read more
As appetite, we give a very broad outline of interactive theorem proving and a perspective on software correctness of distributed systems.
As starter, we consider freely generated algebraic structures, such as (several varieties of) monoids: CM, PCM, ICM.
The main course of …
The actor-based language studied in this research features asynchronous method calls and supports coroutines which allow for the cooperative scheduling of the method invocations belonging to an actor. We model the local behavior of an actor as a well-structured transition system by means of predicate abstraction and derive the decidability …read more
Most parallel applications leave the scheduling problem of their constituent processes to a general purpose scheduler, such as an operating system scheduler. Generally, constituent processes of a parallel application interact. For example, one process interacts with another by using its produced data. These interactions of processes introduce dependencies amongst them …read more
The expressiveness of models of concurrency has intrigued researchers for a number of years now. In particular, studies on the expressiveness of process calculi (such as CCS and the pi-calculus) have had considerable impact. The interest is in questions such as, e.g., under what conditions two process languages C …read more
Our ongoing work focuses on an efficient solution to implement cooperative scheduling models through a user-friendly library written using Java 8. This library translates code written in a modelling language named the Abstract Behavioural Specification Language, into executable Java code. We investigate the issues raised by nested parallelism and the …read more
In this talk we will define the notion of equations and coequations for deterministic automata and, with the aid of some examples, we define what it means for a deterministic automaton to satisfy a set of equations or coequations. We will show a correspondence between sets of equations and coequations …read more
When composing Constraint Automata by means of the product, one can run into cases where the amount of resources necessary grows exponentially in the number of automata. If the Constraint Automaton being calculated requires an exponential number of states by its very nature, this is not surprising. However, there are …read more
eScience, or enabling science, involves the theory and practice of how to enable scientists from different domains to take advantage of the latest advancements in computer science and technology. This is mainly achieved via science gateways, also known as virtual research environments, which hide the technical details of accessing and …read more
« Page 2 / 30 »