Results 251 to 260 of about 9,650,037 (303)
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HIERARCHICAL PEER-TO-PEER SYSTEMS
Parallel Processing Letters, 2003Structured peer-to-peer (P2P) lookup services organize peers into a flat overlay network and offer distributed hash table (DHT) functionality. Data is associated with keys and each peer is responsible for a subset of the keys. In hierarchical DHTs, peers are organized into groups, and each group has its autonomous intra-group overlay network and ...
Luis Garcés-Erice +4 more
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Consistency in Hierarchical Database Systems
Journal of the ACM, 1980The problems of locking and consistency m database systems are examined It is assumed that each transacuon, when executed alone, transforms a consistent state into a consistent state A set of conditions is derived to guarantee that when transactions are processed concurrently, the results are the same as would be obtained by processing the transactmns ...
Abraham Silberschatz, Zvi M. Kedem
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The hierarchical language system
ACM SIGPLAN Notices, 1977The Hierarchical Language System HLS is presented. HLS consists of the structured programming language SPL and the extensible programming language EPL which is built upon SPL layer and provides statement and expression extention facilities, and provides to automate top down programming as much as possible by the following means.(1) To describe each ...
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Hierarchical Protection Systems
1981 IEEE Symposium on Security and Privacy, 1981In this paper, the Take-Grant Model devel-oped by Jones, Lipton, and Snyder is extended in order to represent and study hierarchical protection systems. Two major classes of hierarchical systems are identified: tree systems and acyclic systems. The first class deala with an organization that places decision-making in a single authority while the second
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Hierarchical specification of system behavior
Proceedings 1997 High-Assurance Engineering Workshop, 2002Complex systems are commonly broken up into a hierarchy of composed components. This methodology reduces the complexity of the system os a whole and allows teams of designers to attack the problem of definition. We present and propose a hierarchical methodology for the specification of the behaviors of complex designs. We introduce a single BY operator,
Robert W. Sumners, Jacob A. Abraham
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A hierarchical memory system environment
Proceedings of the 1998 workshop on Computer architecture education - WCAE '98, 1998The paper presents an environment for teaching elements of a computer system memory hierarchy. It is made up of a hierarchical memory system, a reference manual, a software package and a set of laboratory experiments. The hierarchical memory system is devised to cover the virtual memory and translation lookaside buffer, the cache memory, and the main ...
Jovan Djordjevic +2 more
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A hierarchical cellular manufacturing system
International Journal of Mathematics in Operational Research, 2018Cellular manufacturing is one of the most common and popular methods in order to take advantage of group technology. Of particular interest, applying cellular manufacturing systems (CMSs) increases the efficiency of the applied transportation system by designing an efficient working floor.
Seyed Hojat Pakzad Moghadam +3 more
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Modeling Visibility in Hierarchical Systems
2006We consider hierarchical systems where nodes represent entities and edges represent binary relationships among them. An example is a hierarchical composition of Web services where the nodes denote services and edges represent the parent-child relationship of a service invoking another service.
Debmalya Biswas, K. Vidyasankar
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Combining and Distributing Hierarchical Systems
1998It is possible with RAISE to specify and do most refinement in an applicative framework, and then transform the concrete applicative specification into an imperative sequential or concurrent one. This is a change from a style more appropriate to proof of refinement to a style more appropriate to implementation.
Chris George, Do Tien Dung
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Hierarchical Simulation of Production Systems
2018 IEEE 14th International Conference on Automation Science and Engineering (CASE), 2018“Industrie 4.0” and the “Internet of things” postulate more flexibility and modularity in the configuration and control of collaborative production systems. This paper introduces co-simulation as a means to evaluate dynamic plant behavior more accurately by applying simulation models of different levels of detail.
Denis Smirnov +2 more
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