A transaction model for multiagent production systems

2003 ◽  
Author(s):  
T. Ishida
Keyword(s):  
Production Systems ◽  
Transaction Model

A TRANSACTION MODEL FOR PARALLEL PRODUCTION SYSTEMS PART II: MODEL AND EVALUATION

1993 ◽  
Vol 02 (03) ◽  
pp. 431-457
Author(s):  
JAU-HWANG WANG ◽  
JAIDEEP SRIVASTAVA ◽  
WEI TEK TSAI
Keyword(s):  
System Performance ◽  
Analytical Modeling ◽  
Production Systems ◽  
Cost Effective ◽  
Database System ◽  
Parametric Modeling ◽  
System Parameters ◽  
Transaction Model ◽  
Modeling Simulation ◽  
Data Contention

Parallel-rule firing approaches have been proposed to improve the performance of production systems. However, few models have been developed to measure the performance of parallel-rule firing approaches. There are three approaches to evaluating system performance, namely, analytical modeling, simulation, and system prototyping or implementation. Analytical modeling has its advantage in being cost effective and providing a powerful tool for studying various aspects of system performance by varying system parameters. Since analytical modeling has been very successfully used in evaluating database system performance, we develop such a model for parallel production systems, where rule firing is modeled as a transaction. Both resource contention and data contention are modeled in detail and the performance of locking, timestamp and optimistic approaches is analyzed. We show that significant speedup can be gained in parallel rule execution. Our main contribution is in the insights into parallel-rule firing provided by parametric modeling.

A TRANSACTION MODEL FOR PARALLEL RULE EXECUTION PART I: MODEL AND ALGORITHMS

1993 ◽  
Vol 02 (03) ◽  
pp. 395-429
Author(s):  
JAIDEEP SRIVASTAVA ◽  
JAU-HWANG WANG ◽  
KUO WEI HWANG ◽  
WEI TEK TSAI
Keyword(s):  
Production System ◽  
Production Systems ◽  
Phase Locking ◽  
Graph Model ◽  
Priority Queue ◽  
Two Phase ◽  
Serial Production ◽  
Conditional Dependence ◽  
Transaction Model ◽  
As Graph

This paper introduces a transaction model for parallel production systems, where rules can be fired in a completely asynchronous parallel manner. A model is developed to describe two properties of a serial production system execution, namely, conditional dependence (a rule firing removes another from the conflict set) and prioritization (by the conflict resolution mechanism). These are used as the basis to define the correctness criteria for parallel production execution, namely, conditional serializability, prioritized serializability, and prioritized conditional serializability. A graph model is used to represent production system execution which provides a means of expressing correctness as graph acyclicity, which in turn is used as a basis to develop practical schedulers that manage the concurrent asynchronous production execution and ensure correctness. Two practical schedulers, namely, conditional strict two-phase locking and priority queue scheduler are developed for conditional serializability and prioritized serializability, respectively. They are combined for prioritized conditional serializability.

2020–2021 Florida Citrus Production Guide: Citrus Under Protective Screen (CUPS) Production Systems

EDIS ◽  
2020 ◽  
Author(s):  
Arnold W. Schumann ◽  
Ariel Singerman ◽  
Alan L. Wright ◽  
Rhuanito S. Ferrarezi
Keyword(s):  
Production Systems ◽  
Citrus Production ◽  
Florida Citrus ◽  
Protective Screen

Analysis and Simulation Methods of the Mechanisms for the Innovational Development

2019 ◽  
pp. 16-33
Author(s):  
Marta K. Isaeva
Keyword(s):  
Production Systems ◽  
Technological Development ◽  
Computer Experiment ◽  
Simulation Models ◽  
Construction Simulation ◽  
Technological Structure ◽  
Research Sector ◽  
Practical Trial ◽  
Construction Model ◽  
Computation Analysis

The paper dedicates in commemoration of K.A. Bagrinovsky, known scientist, doctor of economic sciences, professor. His thesis was theoretic problems of mathematical modeling and operation of economy. His works in the operations research, the methods making decision, the simulation were received in scientific world. The analysis and the modeling of the mechanisms for scientific and technological development for the production systems of different level in economic hierarchic both centrally controlled economy and making mechanism were conduced by Bagrinovsky in CEMI RAS. The paper presents the investigations (2001–2015) of the analysis and the simulation of the different mechanisms of the innovational activity. It also discusses the methods of the development the complex of the simulation models. In a sense simulation modeling is the science and the art as the selection of the salient parameters for the construction model, intake simplification, the computer experiment and the making decision based on scarcity of accuracy models rest on the heuristic power of men: the practical trial, the intelligence and the intuition. K.A. Bagrinovsky introduced the considerable endowment in the development of this direction for economic and mathematical investigation.The principal object was to show that the relationship between the innovational policy and the technological structure, scientific research sector and the introducing of the progressive production and the organizational structure is obtainable by the models. The character of these relationships may be to use in control of the parameters for the modernization economic. The construction simulation models and the experimental computation analysis were presented the investigations the different mechanisms of the innovational development ant the variants of the estimation have been accomplished on the modeling level by the computer experiment.

Does basic education students know the importance of agroecology production systems for the conservation of biodiversity?

2020 ◽  
Vol 9 (4) ◽  
pp. e04942784
Author(s):  
Andrea Aline Mombach ◽  
Carla Grasiele Zanin Hegel ◽  
Rogério Luis Cansian ◽  
Sônia Beatris Balvedi Zakrzevski
Keyword(s):  
Student Perceptions ◽  
Rural Areas ◽  
Water Conservation ◽  
Social Transformation ◽  
Basic Education ◽  
Production Systems ◽  
Agricultural Systems ◽  
Education Students ◽  
Chi Square ◽  
Conservation Of Biodiversity

The perception of a basic education of the importance of agroecological agricultural systems for human and environmental health is fundamental for changes in consumption habits, the conservation of local biodiversity and long-term social transformation. We analyzed, by utilizing a questionnaire consisting of open and closed questions, the perceptions about agroecological and conventional agricultural production systems in 360 final students of basic education residing in nine Functional Planning Regions of southern Brazil. We used classification categories for answers within thematic axes, expressed in percentages and analyzed by means of Chi-square and Kruskal-Wallis tests. In general, students recognize agroecological systems as healthier for their families and for soil and water conservation, largely because they do not use agrochemicals. However, they demonstrated difficulties when arguing their importance for the conservation of biodiversity, ecosystems and for ensuring the food security of populations. Television was the main source of information related to agroecology, mainly for students residing in rural areas, thus pointing out shortcomings in basic education regarding the approach of the theme in schools. Our results show the need to build a complex network of knowledge and discussions on agroecological agricultural systems in basic education, involving changes in student perceptions, behaviors and sustainable choices.

THE CONCEPT OF COMPETITIVE VALUE CHAINS IN PRODUCTION SYSTEMS AS AN INSTITUTIONAL STRUCTURE OPERATING ON NETWORK PRINCIPLES

2019 ◽  
Vol 6 (3) ◽  
pp. 61-67
Author(s):  
Niyaz Mustjakimovich Abdikeev ◽  
Anton Alekseevich Losev ◽  
Andrey Ivanovich Gaydamaka
Keyword(s):  
Business Processes ◽  
Production Systems ◽  
Institutional Structure ◽  
Cognitive Models ◽  
Value Chains ◽  
High Tech ◽  
Practical Implementation ◽  
Digital Platform ◽  
Software Product ◽  
The Creation

The Concept of competitive value chains in production systems, as an institutional structure operating on network principles, was the impetus for the development of a system of models of inter-industry digital platform for the management and optimization of cooperation of high-tech network production systems. The article describes the ways of integration into business processes of production systems of simulation and cognitive models. The practical implementation of the system of these models is a separate software product - an interdisciplinary digital platform for participants in the creation of new high-tech products and their components.

Tree-Based Production Systems for Africa’s Drylands

2016 ◽  
Author(s):  
Frank Place ◽  
Dennis Garrity ◽  
Sid Mohan ◽  
Paola Agostini
Keyword(s):  
Production Systems
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