Constraints Meet Concurrency
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Constraints Meet Concurrency
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Author : Jacopo Mauro
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-02-11
Constraints Meet Concurrency written by Jacopo Mauro and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-02-11 with Computers categories.
This book describes the benefits that emerge when the fields of constraint programming and concurrency meet. On the one hand, constraints can be used in concurrency theory to increase the conciseness and the expressive power of concurrent languages from a pragmatic point of view. On the other hand, problems modeled by using constraints can be solved faster and more efficiently using a concurrent system. Both directions are explored providing two separate lines of development. Firstly the expressive power of a concurrent language is studied, namely Constraint Handling Rules, that supports constraints as a primitive construct. The features of this language which make it Turing powerful are shown. Then a framework is proposed to solve constraint problems that is intended to be deployed on a concurrent system. For the development of this framework the concurrent language Jolie following the Service Oriented paradigm is used. Based on this experience, an extension to Service Oriented Languages is also proposed in order to overcome some of their limitations and to improve the development of concurrent applications.
Concurrent Constraint Programming
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Author : Vijay Saraswat
language : en
Publisher: MIT Press
Release Date : 1993
Concurrent Constraint Programming written by Vijay Saraswat and has been published by MIT Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Constraint programming (Computer science). categories.
Concurrent Constraint Programming introduces a new and rich class of programming languages based on the notion of computing with partial information, or constraints, that synthesize and extend work on concurrent logic programming and that offer a promising approach for treating thorny issues in the semantics of concurrent, nondeterministic programming languages. Saraswat develops an elegant and semantically tractable framework for computing with constraints, emphasizing their importance for communication and control in concurrent, programming languages. He describes the basic paradigm, illustrates its structure, discusses various augmentations, gives a simple implementation of a concrete language, and specifies its connections with other formalisms. In this framework, concurrently executing agents communicate by placing and checking constraints on shared variables in a common store. The major form of concurrency control in the system is through the operations of Atomic Tell -- an agent may instantaneously place constraints only if they are consistent with constraints that have already been placed -- and Blocking Ask -- an agent must block when it checks a constraint that is not yet known to hold. Other operations at a finer granularity of atomicity are also presented. Saraswat introduces and develops the concurrent constraint family of programming languages based on these ideas, shows how various constraint systems can naturally realize data structures common in computer science, and presents a formal operational semantics for many languages in the concurrent constraint family. In addition, he provides a concrete realization of the paradigm on a sequential machine by presenting a compiler for the concurrent constraint language Herbrand and demonstrates a number of constraint-based concurrent programming techniques that lead to novel presentations of algorithms for many concurrent programming problems.
Concurrent Constraint Programming
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Author : Vijay A. Saraswat
language : en
Publisher: Mit Press
Release Date : 1993-03-22
Concurrent Constraint Programming written by Vijay A. Saraswat and has been published by Mit Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-03-22 with categories.
Concurrent Constraint Programming introduces a new and rich class of programming languages based on the notion of computing with partial information, or constraints, that synthesize and extend work on concurrent logic programming and that offer a promising approach for treating thorny issues in the semantics of concurrent, nondeterministic programming languages. Saraswat develops an elegant and semantically tractable framework for computing with constraints, emphasizing their importance for communication and control in concurrent, programming languages. He describes the basic paradigm, illustrates its structure, discusses various augmentations, gives a simple implementation of a concrete language, and specifies its connections with other formalisms. In this framework, concurrently executing agents communicate by placing and checking constraints on shared variables in a common store. The major form of concurrency control in the system is through the operations of Atomic Tell -- an agent may instantaneously place constraints only if they are consistent with constraints that have already been placed -- and Blocking Ask -- an agent must block when it checks a constraint that is not yet known to hold. Other operations at a finer granularity of atomicity are also presented. Saraswat introduces and develops the concurrent constraint family of programming languages based on these ideas, shows how various constraint systems can naturally realize data structures common in computer science, and presents a formal operational semantics for many languages in the concurrent constraint family. In addition, he provides a concrete realization of the paradigm on a sequential machine by presenting a compiler for the concurrent constraint language Herbrand and demonstrates a number of constraint-based concurrent programming techniques that lead to novel presentations of algorithms for many concurrent programming problems.
Time Constrained Transaction Management
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Author : Nandit R. Soparkar
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Time Constrained Transaction Management written by Nandit R. Soparkar and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Computers categories.
Transaction processing is an established technique for the concurrent and fault tolerant access of persistent data. While this technique has been successful in standard database systems, factors such as time-critical applications, emerg ing technologies, and a re-examination of existing systems suggest that the performance, functionality and applicability of transactions may be substan tially enhanced if temporal considerations are taken into account. That is, transactions should not only execute in a "legal" (i.e., logically correct) man ner, but they should meet certain constraints with regard to their invocation and completion times. Typically, these logical and temporal constraints are application-dependent, and we address some fundamental issues for the man agement of transactions in the presence of such constraints. Our model for transaction-processing is based on extensions to established mod els, and we briefly outline how logical and temporal constraints may be ex pressed in it. For scheduling the transactions, we describe how legal schedules differ from one another in terms of meeting the temporal constraints. Exist ing scheduling mechanisms do not differentiate among legal schedules, and are thereby inadequate with regard to meeting temporal constraints. This provides the basis for seeking scheduling strategies that attempt to meet the temporal constraints while continuing to produce legal schedules.
Concurrency Control In Real Time Database Systems
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Author : Özgür Ulusoy
language : en
Publisher:
Release Date : 1992
Concurrency Control In Real Time Database Systems written by Özgür Ulusoy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Database management categories.
Abstract: "A 'real-time database system (RTDBS)' is a database system designed to provide real-time information to data-intensive applications. Each RTDB transaction is associated with a timing constraint, typically in the form of a deadline. It is difficult, in a RTDBS, to meet all timing constraints due to the consistency requirements of the underlying database. Efficient resource scheduling algorithms and concurrency control protocols are required to maximize the number of transactions satisfying their timing constraints. In our work, we concentrated on the concurrency control problem in RTDBS's.
Concurrent Constraint Programming
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Author : Vijay Saraswat
language : en
Publisher:
Release Date : 1989
Concurrent Constraint Programming written by Vijay Saraswat and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
Concurrency In Systems With Neighborhood Constraints
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Author : Valmir C. Barbosa
language : en
Publisher:
Release Date : 1986
Concurrency In Systems With Neighborhood Constraints written by Valmir C. Barbosa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Electronic data processing categories.
Multi Agent Systems For Concurrent Intelligent Design And Manufacturing
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Author : Weiming Shen
language : en
Publisher: CRC Press
Release Date : 2019-09-17
Multi Agent Systems For Concurrent Intelligent Design And Manufacturing written by Weiming Shen and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-17 with Technology & Engineering categories.
Agent Technology, or Agent-Based Approaches, is a new paradigm for developing software applications. It has been hailed as 'the next significant breakthrough in software development', and 'the new revolution in software' after object technology or object-oriented programming. In this context, an agent is a computer system which is capable of act
Mobile Service Computing
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Author : Shuiguang Deng
language : en
Publisher: Springer Nature
Release Date : 2020-06-23
Mobile Service Computing written by Shuiguang Deng and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-06-23 with Computers categories.
This book introduces readers to the background and principles of mobile service computing. It discusses various aspects of service computing in mobile environments, including key methods and techniques for service selection, recommendation, composition, offloading, execution, deployment, and provision.
Systematic Methodology For Real Time Cost Effective Mapping Of Dynamic Concurrent Task Based Systems On Heterogenous Platforms
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Author : Zhe Ma
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-08-26
Systematic Methodology For Real Time Cost Effective Mapping Of Dynamic Concurrent Task Based Systems On Heterogenous Platforms written by Zhe Ma and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-08-26 with Technology & Engineering categories.
A genuinely useful text that gives an overview of the state-of-the-art in system-level design trade-off explorations for concurrent tasks running on embedded heterogeneous multiple processors. The targeted application domain covers complex embedded real-time multi-media and communication applications. This material is mainly based on research at IMEC and its international university network partners in this area over the last decade. In all, the material those in the digital signal processing industry will find here is bang up-to-date.
