Download CONCUR 2011 – Concurrency Theory: 22nd International by Parosh Aziz Abdulla (auth.), Joost-Pieter Katoen, Barbara PDF

By Parosh Aziz Abdulla (auth.), Joost-Pieter Katoen, Barbara König (eds.)

This publication constitutes the refereed court cases of the twenty second foreign convention on Concurrency concept, CONCUR 2011, held in Aachen, Germany, September 5-10, 2011.
The 32 revised complete papers have been rigorously reviewed and chosen from ninety four submissions. The papers are equipped in themes akin to real-time structures, probabilistic platforms, automata, separation common sense, π-calculus, Petri nets, procedure algebra and modeling, verification, video games, and bisimulation.

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Extra info for CONCUR 2011 – Concurrency Theory: 22nd International Conference, CONCUR 2011, Aachen, Germany, September 6-9, 2011. Proceedings

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Therefore, we advocate a new representation more suitable for process discovery: causal nets. , heuristic mining, fuzzy mining, and genetic mining). However, unlike existing approaches, we provide declarative semantics more suitable for process mining. To clarify these semantics and to illustrate the non-local nature of this new representation, we relate causal nets to Petri nets. 1 Motivation In this paper, we advocate the use of Causal-nets (C-nets) in process mining. C-nets were introduced in [2] and, in our view, provide a better representational bias for process discovery than conventional design-oriented languages such as Petri nets, BPMN, BPEL, EPCs, YAWL, and UML activity diagrams.

3. Progress: Every correct process that proposes an input value obtains an output value. 4. Commitment: If no two input values are different, then no output value can be adopted. (It is necessarily committed). We use a vector of adopt-commit objects at each round, and this vector acts as a synchronization filter through which processes go, after passing the consensus vector and before actually executing commands on their state machines. Each process, after obtaining an output from the consensus vector, goes through the vector of adopt-commit objects.

A C-net transformed into a WF-net: every valid firing sequence of the WF-net corresponds to a valid sequence of the C-net Ctravel shown in in Fig. 1 and vice versa It is easy to see that Definition 11 is such that the WF-net can mimic any valid binding sequence. However, the corresponding WF-net does not need to be sound and may have a firing sequence that cannot be extended into a valid firing sequence. Theorem 2. Let C = (A, ai , ao , D, I, O) be a C-net having NC as its corresponding WF-net. – For any valid binding sequence σC ∈ VCN (C), there exists a valid firing sequence σN ∈ VP N (NC ) such that α(σC ) = σN ↑ A.

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