Download or read book On the Foundations of Dynamic Coalitions written by Arbach, Youssef and published by Universitätsverlag der TU Berlin. This book was released on 2016-09-16 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Coalitions denote a temporary collaboration between different entities to achieve a common goal. A key feature that distinguishes Dynamic Coalitions from static coalitions is Dynamic Membership, where new members can join and others can leave after a coalition is set. This thesis studies workflows in Dynamic Coalitions, by analyzing their features, highlighting their unique characteristics and similarities to other workflows, and investigating their relation with Dynamic Membership. For this purpose, we use the formal model of Event Structures and extend it to faithfully model scenarios taken as use cases from healthcare. Event Structures allow for workflows modeling in general, and for modeling Dynamic Membership in Dynamic Coalitions as well through capturing the join and leave events of members. To this end, we first extend Event Structures with Dynamic Causality to address the dynamic nature of DCs. Dynamic Causality allows some events to change the causal dependencies of other events in a structure. Then, we study the expressive power of the resulting Event Structures and show that they contribute only to a specific kind of changes in workflows, namely the pre-planned changes. Second, we present Evolving Structures in order to support ad-hoc and unforeseen changes in workflows, as required by the use cases. Evolving Structures connect different Event Structures with an evolution relation which allows for changing an Event Structure during a system run. We consider different approaches to model evolution and study their equivalences. Furthermore, we show that the history of a workflow should be preserved in our case of evolution in Dynamic Coalitions, and we allow for extracting changes from an evolution to support Process Learning. Third, to capture the goals of DCs, we equip Evolving Structures with constraints concerning the reachability of a set of events that represents a goal. The former extensions allow for examining the changes and evolutions caused by members, and examining members’ contributions to goal satisfaction, through their join and leave events. Finally, we highlight many modeling features posed as requirements by the domain of our Dynamic-Coalition use cases, namely the healthcare, which are independent from the nature of Dynamic Coalitions, e.g. timing. We examine the literature of Event Structures for supporting such features, and we identify that the notion of Priority is missing in Event Structures. To this end, we add Priority to various kinds of Event Structures from the literature. Furthermore, we study the relation between priority on one side, and conjunctive causality, disjunctive causality, causal ambiguity and various kinds of conflict on the other side. Comparing to Adaptive Workflows, which are concerned with evolutions of workflows that occur as a response to changes, e.g. changes in the business environment or exceptions, this thesis shows that Dynamic-Coalition workflows are not only Adaptive but also Goal-Oriented. Besides, it adds one extra trigger for evolution in workflows—unique to Dynamic Coalitions—namely the join of new members who contribute to goal satisfaction in a Dynamic Coalition. Finally the thesis contributes to bridging the gap in modeling between theory and domain experts by supporting step-by-step modeling applied regularly in healthcare and other domains. Dynamische Koalitionen (DKen) bezeichnen eine temporäre Kollaboration zwischen verschiedenen Entitäten zum Erreichen eines gemeinsamen Ziels. Ein Schüsselaspekt, welcher dynamische Koalitionen von statischen Koalitionen unterscheidet ist die dynamische Mitgliedschaft, durch die neue Mitglieder hinzu- kommen und andere die Koalitionen verlassen können, nachdem sie entstanden ist. Diese Arbeit studiert Workflows in dynamische Koalitionen durch eine Analyse ihrer Eigenschaften, das Herausstellen ihrer einzigartigen Charakteristika und Ähnlichkeiten zu anderen Workflows und durch eine Untersuchung ihrer Beziehung zu dynamischer Mitgliedschaft. In diesem Sinne nutzen wir das formales Model der Ereignisstukturen (ESen) und erweitern es, um Fallstudien aus der Medizin angemessen zu modellieren. ESen erlauben sowohl eine generelle Workflow Modellierung als auch eine Darstellung von Eintritt- und Austrittereignissen von Mitgliedern. Zu diesem Zweck erweitern wir ESen zuerst um Dynamische Kausalität, um die dynamische Natur von DKs abzubilden. Dynamische Kausalität erlaubt bestimmten Ereignissen die kausalen Abhängigkeiten anderer Ereignissen in einer Struktur zu verändern. Dann untersuchen wir die Ausdrucksstärke der resutierenden ESen und zeigen, dass sie nur eine spezifische Art der Veränderung abbilden, die sogenannten vorgeplanten Veränderungen. Als Zweites präsentieren wir Evolving in ESen um ad-hoc- und unvorhergesehene Veränderungen zu unterstützen, wie es durch unsere Fallstudien benötigt wird. Evolving in ESen verbinden verschiedene ESen mit einer Relation, welche eine Veränderung einer ES während eines Ablaufes erlaubt. Wir ziehen verschiedene Ansätze der Modelevolution in Betracht und untersuchen ihre Äquivalenzen. Des Weiteren zeigen wir, dass in unserem Fall der Evolution in DKen die Geschichte eines Workflows erhalten bleiben muss und wir ermöglichen das Extrahieren von Veränderungen einer Evolution, um Process Learning zu unterstützen. Drittens: Um die Ziele von DKen abzubilden, fügen wir den Evolving in ESen mit Einschränkungen bezüglich der Erreichbarkeit einer Menge von Ereignissen hinzu, welche das Ziel repräsentieren. Die genannten Erweiterungen erlauben es sowohl die Änderungen und Evolutionen, die vom Mitgliedern verursacht werden als auch die Beiträge der Mitglieder zur Zielerreichung durch deren Entritt- und Austrittereignissen zu untersuchen. Schlussendlich, stellen wir viele Modellierungseigen- schaften dar, welche von den DK-Fallstudien aus der Medizin benötigt werden und unabhängig von der Natur der DKen sind, wie z.B. Timing. Wir untersuchen die Literatur zu ESen bezüglich Unterstützung für solche Eigenschaften und stellen fest, dass der Begriff Priorität in ESen fehlt. Daher fügen wir Priorität zu verschiedenen ESen aus der Literatur hinzu. Des Weiteren untersuchen wir die Beziehungen von Priorität auf zu Konjunktiver Kausalität, disjunktiver Kausalität, kausal Uneindeutigkeit und verschiedenen Formen von Konflikt. Im Vergleich zu Adaptive Workflows, welche sich mit der Evolution von Workflows beschäftigt, die als Reaktion auf Veränderungen entsteht, wie z.B. Veränderungen im Business Environment oder Exceptions, zeigt diese Arbeit das DKen nicht nur adaptiv sondern auch zielorientiert sind. Außerdem fügt sie einen zusätzlichen Auslöser für Evolution in Workflows hinzu, welcher ausschließlich DKen eigen ist: das Hinzukommen neuer Mitglieder welche zur Ziel- erreichung der DK beitragen. Zuletzt trägt diese Arbeit bei, die Lücke der Modellierung zwischen der Theorie und den Domänenexperten zu überbrücken, in dem sie eine Schritt-für-Schritt Modellierung unterstützt, welche regelmäßig in der Medizin und anderen Bereichen angewand wird.

Download or read book Dynamic Coalitions written by David P. Baron and published by . This book was released on 2014 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a theory of dynamic coalitions for a legislative bargaining game in which policies continue in effect in the absence of new legislation. We characterize Markov perfect equilibria with dynamic coalitions, which are decisive sets of legislators whose members strictly prefer preserving the coalition to having it end. Dynamic coalitions satisfy internal stability and exclusion risk conditions. They can be minimal winning or surplus and can award positive allocations to non-coalition members. Policies supported can be efficient or inefficient. Vested interests can support policies that no legislator would propose if forming a new coalition. If uncertainty is associated with policy implementation, a continuum of policies are supported. These equilibria have the same allocation in every period when the coalition persists. Dynamic coalitions also exist in which members tolerate a degree of implementation uncertainty, resulting in policies that can change without the coalition dissolving. We compare to experimental results.

Download or read book Dynamic Coalitions Firm Size and Growth written by Edward C. Prescott and published by . This book was released on 1985 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dynamic Coalitions Growth and the Firm written by Edward C. Prescott and published by . This book was released on 1986 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dimensions of Dynamic Coalitions written by and published by . This book was released on 2006 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Privacy Aware Dynamic Coalitions written by and published by . This book was released on 2014 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transitive Delegations in Dynamic Coalitions written by Shivakumar R. Koduvayur and published by . This book was released on 2002 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Informal Coalitions written by C. Rodgers and published by Springer. This book was released on 2006-10-10 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book places everyday talk and role-modelling interactions at the forefront of an alternative change-leadership agenda, and introduces a number of practical approaches to help line managers and organizational specialists deliver this agenda more successfully. It is essential reading for organizational practitioners at all levels.

Download or read book Virtual Machine Applicability to Dynamic Coalitions written by and published by . This book was released on 2004 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Strategic Alliances written by Nella Van Dyke and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Social researchers in the past have paid surprisingly little theoretical or empirical attention to movement alliances. Strategic Alliances provides a pioneering set of in-depth analyses of the circumstances leading to these organizational alliances. Contributors investigate coalition dynamics among social movements, including antiwar, environmental, and labor movements, as well as ethnic organizations and women's groups. While many of the essays examine coalition formation in the United States, others consider coalitions in Britain, the former East Germany, East Asia, and Latin America. Contributors: Paul Almeida, Texas A&M U; Elizabeth Borland, College of New Jersey; Daniel B. Cornfield, Vanderbilt U; Catherine Corrigall-Brown, U of British Columbia; Mario Diani, U of Trento; Katja M. Guenther, UC Riverside; Larry Isaac, Vanderbilt U; Isobel Lindsay, Biggar, Scotland; David S. Meyer, UC Irvine; Brian Obach, SUNY New Paltz; Dina G. Okamoto, UC Davis; Christine Petit, UC Riverside; Derrick Purdue, U of the West of England; Ellen Reese, UC Riverside; Benita Roth, SUNY Binghamton; Suzanne Staggenborg, U of Pittsburgh; Dawn Wiest, U of Memphis.

Download or read book Continuity in Dynamic Coalition Operations written by and published by . This book was released on 2002 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The combination of participating organizations in a coalition operation often changes over time; the coalition is dynamic and evolves over the course of its mission. A given organization may participate in the coalition only at the stage where its expertise or resources are most needed, while other organizations may participate through the entire course of the operation. As these are independent organizations coming together for a limited time to meet a specific goal, the structure of the coalition must be able to accommodate the different command arrangements, procedures, and other characteristics of each organization. In order to develop a theory of a coalition structure that can accommodate the changing needs of the coalition, a dynamic model of a coalition is being developed that allows organizational participation to fluctuate over the course of the mission. In order to ensure that the model emulates real world situations, a scenario was created from actual coalition experiences in the NATO-led Balkan's peacekeeping operations in Kosovo, where lead nations were assigned under the operational command of the NATO-led force. Adding to the complexity of the operations was the fact that military commanders and staff turned over frequently creating stability and continuity of operations challenges. This project attempts to capture some of these dynamics in order to draw conclusions about the effect of change on the coalition structure.

Download or read book Dynamic Coalition Management Systems written by Keyu Jiang and published by . This book was released on 2001 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Policy Debates as Dynamic Networks written by Philip Leifeld and published by Campus Verlag. This book was released on 2016-04-08 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: Policy debates between political actors can facilitate, strain, or change the direction of future policy-making. However, existing measurement approaches do not tap the full potential of discursive-institutionalist explanations of policy outcomes. Based on social network analysis of political discourse, this book develops a formal methodology for the dynamic analysis of political discourse using text data. As a showcase, the German politics of old-age security in the 1990s are analyzed in this book in detail. The literature offers several ideational explanations for the 2001 Riester reform, a major policy innovation that breaks with previous incrementalist descriptions of pension policy-making. This book is an attempt to overcome the methodological limitations of policy network analysis and operationalize the relational elements hidden in political debates"

Download or read book Self organizing Coalitions for Managing Complexity written by Juan C. Burguillo and published by Springer. This book was released on 2017-12-13 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an interdisciplinary approach to complexity, combining ideas from areas like complex networks, cellular automata, multi-agent systems, self-organization and game theory. The first part of the book provides an extensive introduction to these areas, while the second explores a range of research scenarios. Lastly, the book presents CellNet, a software framework that offers a hands-on approach to the scenarios described throughout the book. In light of the introductory chapters, the research chapters, and the CellNet simulating framework, this book can be used to teach undergraduate and master’s students in disciplines like artificial intelligence, computer science, applied mathematics, economics and engineering. Moreover, the book will be particularly interesting for Ph.D. and postdoctoral researchers seeking a general perspective on how to design and create their own models.

Download or read book Dynamic Coalition Formation in Markets with Linear Demand written by Winston D. Hurst and published by . This book was released on 2016 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a gradient play differential game in a producer market with linear demand as a model of behavior in a competitive environment. This model is then extended to allow for cooperation. Definitions of coalitions and natural coalitions are provided, and previous work dealing with static coalition structure is presented. Requirements for acceptable system dynamics are given, and a specific set of dynamics presented. These dynamics are shown to meet the specified requirements in a number of cases through proofs of stability of equilibria as well as guarantees that the dynamics result in natural coalitions. Numerical examples are provided to support the claim that a reasonable equilibrium exists and that its basin of attraction covers reasonable initial conditions. The work concludes with a summary as well as possible paths for continued research.

Download or read book Dynamic Coalition Formation and the Core written by Tone Dieckmann and published by . This book was released on 1998 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Virtual Secure Dynamic Coalitions written by and published by . This book was released on 2006 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of the VSDC project was to create a system that could provide secure group communication in a coalition environment. This report documents the design decisions and the outcomes of the Virtual Secure Dynamic Coalitions (VSDC) project. Sections outline the reasons behind the decision to use each of the Defense Advanced Research Projects Agency (DARPA) projects used in the VSDC project.