Runtime verification (RV) is a pragmatic and scalable, yet rigorous technique, to assess the correctness of complex systems, including cyber-physical systems (CPS). By measuring how robustly a CPS run satisfies a specification, RV allows in addition, to quantify the resiliency of a CPS to perturbations. In this paper we propose Algebraic Runtime Verification (ARV), a general, semantic framework...

State-of-the-art dynamic middleware uses information about the environment in order to evaluate alternative configurations of an application and select one according to some criteria. In the context of applications sensitive to Quality of Service, we have identified the need for a platform independent description of configurations that includes non-functional behaviour, and that allows handling...

AbstmctThe original proposals of several stochastic Petri net modeling techniques and of generalized stochastic Petri nets (GSPN) in particular were based mainly on the characteristics of their underlying stochastic processes. This led to the use of GSPN only as a shortened notation for the description of stochastic models. Although already quite useful in practice, this approach did not fully ...

This paper addresses two real life engineering design problems . A main design problem is the synthesis task : given a requirements specification and an unsatisfactory design, how should this design be changed in order to fullfil the specification ? When a satisfactory design has been found, it is often the case that only the values that describe this design are stored . Because all information...

Machine translation benefits from system combination. We propose flexible interaction of hypergraphs as a novel technique combining different translation models within one decoder. We introduce features controlling the interactions between the two systems and explore three interaction schemes of hiero and forest-to-string models—specification, generalization, and interchange. The experiments ar...

To manage complexity and to shorten design time, systemlevel methods for specification and design are becoming indispensable. System-level methods and tools focus on the creation of executable models that describe a system in the earliest phases of the design process. They allow qualitative (correctness) and quantitative (performance) properties to be analyzed before the system is actually bein...

Finding mathematical models satisfying a specification built from the formalization of biological experiments, is a common task of the modeler that techniques like modelchecking help solving, in the qualitative but also in the quantitative case. In this article we define a continuous degree of satisfaction of temporal logic formulae with constraints. We show how such a satisfaction measure can ...

In this paper, we summarize our prior work on exerting organizational influence on a decision-theoretic agent by replacing components of its Dec-POMDP model. We show how replacing various components can correspond to different prior notions of organizational control, and summarize the impact that different replacements can have on the quality and overhead of coordinated behavior. The innovation...