40 results on '"A-Team"'
Search Results
2. A-Team Solving Multi-Skill Resource-Constrained Project Scheduling Problem.
- Author
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Jedrzejowicz, Piotr and Ratajczak-Ropel, Ewa
- Subjects
MULTIAGENT systems ,BENCHMARK problems (Computer science) ,NP-hard problems ,SCHEDULING ,PRODUCTION scheduling ,PROBLEM solving - Abstract
The MS-RCPSP belongs to the class of the strongly NP-hard optimisation problems. The MS-RCPSP is an extension of the classical RCPSP where some given pool of skills has been assigned to the resources. To solve this problem the multi-agent system approach has been proposed, implemented and used. The A-Team multi-agent system has been built using the environment where optimisation agents are used to find solutions. The approach has been tested experimentally using benchmark problem instances from iMOPSE dataset with the makespan optimization criterion [ABSTRACT FROM AUTHOR]
- Published
- 2022
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3. A-Team Solving Distributed Resource-Constrained Multi-project Scheduling Problem
- Author
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Jedrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Hutchison, David, Series Editor, Kanade, Takeo, Series Editor, Kittler, Josef, Series Editor, Kleinberg, Jon M., Series Editor, Mattern, Friedemann, Series Editor, Mitchell, John C., Series Editor, Naor, Moni, Series Editor, Pandu Rangan, C., Series Editor, Steffen, Bernhard, Series Editor, Terzopoulos, Demetri, Series Editor, Tygar, Doug, Series Editor, Weikum, Gerhard, Series Editor, Nguyen, Ngoc Thanh, editor, Pimenidis, Elias, editor, Khan, Zaheer, editor, and Trawiński, Bogdan, editor
- Published
- 2018
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- View/download PDF
4. A-Team Solving Distributed Resource-Constrained Multi-Project Scheduling Problem
- Author
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Piotr Jędrzejowicz and Ewa Ratajczak-Ropel
- Subjects
multi-project scheduling ,distributed scheduling ,resource-constrained scheduling ,distributed resource-constrained multi-project scheduling ,optimization problem ,multi-agent system ,a-team ,Information technology ,T58.5-58.64 ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
In this paper, a multi-agent system (MAS) based on the A-Team concept is proposed to solve the Distributed Resource-Constrained Multi-Project Scheduling Problem (DRCMPSP). In the DRCMPSP, multiple distributed projects are considered. Hence, the local task schedule for each project and a coordination of the shared decisions are considered. The DRCMPSP belongs to the class of the strongly NP-hard optimization problems. Multi-agent system seems the natural way of solving such problems. The A-Team MAS, proposed in this paper, has been built using the JABAT environment where two types of the optimization agents are used: local and global. Local optimization agents are used to find solutions for the local projects, and global optimization agents are responsible for the coordination of the local projects and for finding the global solutions. The approach has been tested experimentally using 140 benchmark problem instances from MPSPLIB library with minimizing the Average Project Delay (APD) as global optimization criterion.
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- 2019
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5. A-Team Solving Distributed Resource-Constrained Multi-Project Scheduling Problem.
- Author
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Jędrzejowicz, Piotr and Ratajczak-Ropel, Ewa
- Subjects
MULTIAGENT systems ,MATHEMATICAL optimization ,PRODUCTION scheduling ,INTELLIGENT agents ,OPERATIONS research - Abstract
In this paper, a multi-agent system (MAS) based on the A-Team concept is proposed to solve the Distributed Resource-Constrained Multi-Project Scheduling Problem (DRCMPSP). In the DRCMPSP, multiple distributed projects are considered. Hence, the local task schedule for each project and a coordination of the shared decisions are considered. The DRCMPSP belongs to the class of the strongly NP-hard optimization problems. Multi-agent system seems the natural way of solving such problems. The A-Team MAS, proposed in this paper, has been built using the JABAT environment where two types of the optimization agents are used: local and global. Local optimization agents are used to find solutions for the local projects, and global optimization agents are responsible for the coordination of the local projects and for finding the global solutions. The approach has been tested experimentally using 140 benchmark problem instances from MPSPLIB library with minimizing the Average Project Delay (APD) as global optimization criterion. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
6. PLA Based Strategy for Solving MRCPSP by a Team of Agents
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Jędrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Howlett, Robert James, Series editor, Jain, Lakhmi C., Series editor, Czarnowski, Ireneusz, editor, Caballero, Alfonso Mateos, editor, and Howlett, Robert J., editor
- Published
- 2016
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7. Dynamic Cooperative Interaction Strategy for Solving RCPSP by a Team of Agents
- Author
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Jędrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Nguyen, Ngoc-Thanh, editor, Iliadis, Lazaros, editor, Manolopoulos, Yannis, editor, and Trawiński, Bogdan, editor
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- 2016
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8. Reinforcement Learning Strategy for Solving the MRCPSP by a Team of Agents
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Jędrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Howlett, Robert J., Series editor, Jain, Lakhmi C., Series editor, and Neves-Silva, Rui, editor
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- 2015
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9. Teams of Agents for Solving the Resource-Constrained Project Scheduling Problem
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Jędrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Tweedale, Jeffrey W., editor, and Jain, Lakhmi C., editor
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- 2013
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10. Agent-Based Approach to RBF Network Training with Floating Centroids
- Author
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Czarnowski, Ireneusz, Jędrzejowicz, Piotr, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Nguyen, Ngoc-Thanh, editor, Hoang, Kiem, editor, and Jȩdrzejowicz, Piotr, editor
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- 2012
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11. A-Team for Solving the Resource Availability Cost Problem
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Jędrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Nguyen, Ngoc-Thanh, editor, Hoang, Kiem, editor, and Jȩdrzejowicz, Piotr, editor
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- 2012
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12. Double-Action Agents Solving the MRCPSP/Max Problem
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Jȩdrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Jędrzejowicz, Piotr, editor, Nguyen, Ngoc Thanh, editor, and Hoang, Kiem, editor
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- 2011
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13. Experimental Evaluation of the Agent-Based Population Learning Algorithm for the Cluster-Based Instance Selection
- Author
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Czarnowski, Ireneusz, Jędrzejowicz, Piotr, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Jędrzejowicz, Piotr, editor, Nguyen, Ngoc Thanh, editor, and Hoang, Kiem, editor
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- 2011
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14. A-Team for Solving MRCPSP/max Problem
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Jędrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, O’Shea, James, editor, Nguyen, Ngoc Thanh, editor, Crockett, Keeley, editor, Howlett, Robert J., editor, and Jain, Lakhmi C., editor
- Published
- 2011
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15. A New Cluster-based Instance Selection Algorithm
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Czarnowski, Ireneusz, Jędrzejowicz, Piotr, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, O’Shea, James, editor, Nguyen, Ngoc Thanh, editor, Crockett, Keeley, editor, Howlett, Robert J., editor, and Jain, Lakhmi C., editor
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- 2011
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16. Distributed Learning with Data Reduction
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Czarnowski, Ireneusz, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, and Nguyen, Ngoc Thanh, editor
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- 2011
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17. JABAT Middleware as a Tool for Solving Optimization Problems
- Author
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Barbucha, Dariusz, Czarnowski, Ireneusz, Jędrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Wierzbowska, Izabela, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Nguyen, Ngoc Thanh, editor, and Kowalczyk, Ryszard, editor
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- 2010
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18. Uloga kliničkog farmaceuta u upravljanju antimikrobnim lijekovima.
- Author
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Poje, Darija Kuruc, Mađarić, Vesna, Poje, Vlatka Janeš, and Marušić, Srećko
- Abstract
Copyright of Croatian Journal of Infection / Infektoloski Glasnik is the property of Croatian Society for Infectious Diseases and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2018
19. Experimental Evaluation of Agent-based Approaches to Solving Multi-mode Resource-Constrained Project Scheduling Problem.
- Author
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Ratajczak-Ropel, Ewa
- Subjects
- *
PRODUCTION scheduling , *MATHEMATICAL optimization , *REINFORCEMENT learning , *MACHINE learning , *LEARNING classifier systems - Abstract
In this paper, a rank-based nonparametric statistical test for measuring the effect of cooperation between optimization agents solving the multi-mode resource-constrained project scheduling problem is presented. To solve this NP-hard optimization problem, different methods are applied including population- and agent-based approaches. One of them is a team of asynchronous agents composed of multiple optimization agents, management agents, and common memories, which through interactions produce solutions of hard optimization problems. Optimization agents represent different methods including local search, path relinking, or tabu search. Interactions are managed through various cooperation strategies based on applying heuristics, reinforcement learning, or population learning. [ABSTRACT FROM AUTHOR]
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- 2018
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20. e-JABAT – An Implementation of the Web-Based A-Team
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Barbucha, Dariusz, Czarnowski, Ireneusz, Jȩdrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Wierzbowska, Izabela, Kacprzyk, Janusz, editor, Nguyen, Ngoc Thanh, editor, and Jain, Lakhmi C., editor
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- 2009
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21. A-Team Middleware on a Cluster
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Czarnowski, Ireneusz, Jȩdrzejowicz, Piotr, Wierzbowska, Izabela, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Håkansson, Anne, editor, Nguyen, Ngoc Thanh, editor, Hartung, Ronald L., editor, Howlett, Robert J., editor, and Jain, Lakhmi C., editor
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- 2009
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22. Web Accessible A-Team Middleware
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Barbucha, Dariusz, Czarnowski, Ireneusz, Jędrzejowicz, Piotr, Ratajczak-Ropel, Ewa, Wierzbowska, Izabela, Hutchison, editor, Kanade, editor, Kittler, editor, Kleinberg, editor, Mattern, editor, Mitchell, editor, Naor, editor, Nierstrasz, editor, Pandu Rangan, editor, Steffen, editor, Sudan, editor, Terzopoulos, editor, Tygar, editor, Vardi, editor, Weikum, editor, Bubak, Marian, editor, van Albada, Geert Dick, editor, Dongarra, Jack, editor, and Sloot, Peter M. A., editor
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- 2008
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23. An Investigation of Agent-Based Hybrid Approach to Solve Flowshop and Job-Shop Scheduling Problems
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Jędrzejowicz, Joanna, Jędrzejowicz, Piotr, Carbonell, Jaime G., editor, Siekmann, J\'org, editor, Apolloni, Bruno, editor, Howlett, Robert J., editor, and Jain, Lakhmi, editor
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- 2007
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24. Lean Smart Manufacturing in Taiwan—Focusing on the Bicycle Industry
- Author
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Lih-Ren Li
- Subjects
lean smart manufacturing ,customer value ,industry 4.0 ,lean production ,a-team ,Management. Industrial management ,HD28-70 ,Business ,HF5001-6182 - Abstract
Industry 4.0, started in Germany in 2011, was fervently promoted by various advanced countries and followed by the introduction of “smart manufacturing”. As an innovative strategy of the manufacturing industry “smart manufacturing” has attracted considerable attention in the field of academics and practice. However, the issues of huge investment and differentiation of individual enterprises have created a big gap between policy promotion and production at the site of actual industrial manufacturing and resulted in limited progress in smart manufacturing. In view of the situation, the authors have previously developed in relation to the practice of individual companies in the industry a practical structure of “Lean Smart Manufacturing: a conceptual framework and solution based co-creative platform” combining Lean Production with smart manufacturing to achieve customer value. In addition to filling the gap between government policy and industry in Industry 4.0, the practical structure suggests the possibility of balancing differentiation and open innovation. Taiwan’s bicycle industry is one of Taiwan’s most internationally competitive industries. GIANT, the leading manufacturer of bicycles in Taiwan, has been actively promoting TPS since 2000. With the development of Industry 4.0, GIANT has been working on the application of Industry 4.0 related technologies in order to further enhance customer value. In the application of the practical structure of “Lean Smart Manufacturing”, there are few cases of corporate practice. This study focuses on the A-Team which is constructed by the bicycle industry in Taiwan and GIANT for empirical research, to see how GIANT implement the “Lean Smart Manufacturing” and construct the co-creative platform, to balance differentiation and open innovation, then strengthen its competitiveness. The research results show that although this case is still in the development stage, it has the basic form of “Lean Smart Manufacturing: a conceptual framework and solution based co-creative platform”. This case, as we advocate the use of differentiated advantages of “Lean Smart Manufacturing”, pragmatically from the establishment of the smart factory platform on the physical system, gradually extended to the strategic co-creative platform of the cyber system.
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- 2019
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25. An urban transportation problem solved by parallel programming with hyper-heuristics
- Author
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Paola Patricia Oteiza, Diego Alejandro Rodriguez, and Nélida Beatriz Brignole
- Subjects
Mathematical optimization ,Control and Optimization ,Computer science ,MathematicsofComputing_NUMERICALANALYSIS ,0211 other engineering and technologies ,INGENIERÍAS Y TECNOLOGÍAS ,02 engineering and technology ,Management Science and Operations Research ,ComputingMethodologies_ARTIFICIALINTELLIGENCE ,Industrial and Manufacturing Engineering ,A-TEAM ,Local optimum ,0202 electrical engineering, electronic engineering, information engineering ,OPTIMIZATION ,Metaheuristic ,021103 operations research ,business.industry ,Applied Mathematics ,Ciencias de la Computación ,Computer Science Applications ,Ingeniería Química ,HYPERHEURISTICS ,Ciencias de la Computación e Información ,Public transport ,Otras Ingeniería Química ,Urban transportation ,020201 artificial intelligence & image processing ,business ,Heuristics ,CIENCIAS NATURALES Y EXACTAS ,PUBLIC TRANSPORT - Abstract
Se propone una estrategia de optimización innovadora mediante hiperheurística. Consiste en una combinación paralela de tres metaheurísticas. En vista de la necesidad tanto de escapar de los óptimos locales como de lograr una gran diversidad, el algoritmo combina cooperativamente el recocido simulado con algoritmos genéticos y la optimización de colonias de hormigas. Se adoptó un problema de enrutamiento de ubicación (LRP), que apunta al diseño de redes de transporte, para la evaluación del rendimiento del algoritmo propuesto. Los intercambios de información tuvieron lugar de manera efectiva entre las metaheurísticas y aceleraron el proceso de búsqueda. Además, la implementación paralela fue útil ya que permitió que varias metaheurísticas se ejecutaran simultáneamente, logrando así una reducción significativa en el tiempo computacional. La eficiencia algorítmica y la efectividad fueron ratificadas para una ciudad de tamaño mediano. An innovative optimization strategy by means of hyper-heuristics is proposed. It consists of a parallel combination of three metaheuristics. In view of the need both to escape from local optima and to achieve high diversity, the algorithm cooperatively combines Simulated Annealing with Genetic Algorithms and Ant Colony Optimization. A Location-Routing Problem (LRP), which aims at the design of transport networks, was adopted for the performance evaluation of the proposed algorithm. Information exchanges took place effectively between the metaheuristics and speeded up the search process. Moreover, the parallel implementation was useful since it allowed several metaheuristics to run simultaneously, thus achieving a significant reduction of the computational time. The algorithmic efficiency and effectiveness were ratified for a medium-size city. The proposed optimization algorithm not only accelerated computations, but also helped to improve solution quality. Fil: Rodriguez, Diego Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional de Salta; Argentina Fil: Oteiza, Paola Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina Fil: Brignole, Nélida Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación; Argentina
- Published
- 2019
26. Reinforcement Learning strategies for A-Team solving the Resource-Constrained Project Scheduling Problem.
- Author
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Jędrzejowicz, P. and Ratajczak-Ropel, E.
- Subjects
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REINFORCEMENT learning , *CONSTRAINED optimization , *PRODUCTION scheduling , *MULTIAGENT systems , *MACHINE learning , *NEURAL computers - Abstract
In this paper strategies for the A-Team with Reinforcement Learning (RL) for solving the Resource Constrained Project Scheduling Problem (RCPSP) are proposed and experimentally validated. The RCPSP belongs to the NP-hard problem class. To solve this problem a team of asynchronous agents (A-Team) has been implemented using the JABAT multiagent system. An A-Team is the set of objects including multiple agents and the common memory which through interactions produce solutions of optimization problems. These interactions are usually managed by a static strategy. In this paper the dynamic learning strategies are suggested. The proposed strategies based on reinforcement learning supervising interactions between optimization agents and the common memory. To validate the approach and compare strategies computational experiment has been carried out. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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27. How Tonto Became Mr. T: The A-Team and the Transformation of the Western in Post-Vietnam America.
- Author
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Peppard, Anna F.
- Abstract
The plot of The A-Team is straightforward and repetitive: fugitives from the government for a crime they did not commit, members of a former Vietnam War special-forces unit roam America as mercenaries, using over-the- top, cartoonish violence to protect small business owners from exploitation. The team’s positioning as roving gunslingers using interventionist violence to regenerate ideal communities directly references the Western. However, while the self-reflexive artificiality of the team’s violence ridicules the Western, the righteousness of the team’s perpetual success paradoxically embraces it. This paper argues that The A-Team challenges the Western only as a means to reaffirm it, negotiating post-Vietnam American society’s conflicting desires to reject and recuperate the past—in this case, the myth of “regeneration through violence” that Richard Slotkin argues underpins both the Western and America’s national identity. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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28. Parallel Hyperheuristic Algorithm for the Design of Pipeline Networks
- Author
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Nélida Beatriz Brignole, Diego Alejandro Rodriguez, and Paola Patricia Oteiza
- Subjects
021103 operations research ,Speedup ,Ingeniería de Procesos Químicos ,Computer science ,General Chemical Engineering ,Pipeline (computing) ,Ant colony optimization algorithms ,0211 other engineering and technologies ,INGENIERÍAS Y TECNOLOGÍAS ,02 engineering and technology ,General Chemistry ,Industrial and Manufacturing Engineering ,PIPELINING ,Ingeniería Química ,Reduction (complexity) ,HYPERHEURISTICS ,A-TEAM ,Simulated annealing ,Genetic algorithm ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Algorithm design ,OPTIMIZATION ,Metaheuristic ,Algorithm - Abstract
A hyperheuristic optimization technique to reduce computational times for the design of pipeline networks is presented. The proposed strategy is an A-team approach comprising the guided execution of three metaheuristics: a genetic algorithm, simulated annealing, and an ant colony optimization. Besides, a specialized learning mechanism for information exchange was defined in order to speed up the search process. Moreover, the algorithm was implemented in parallel so as to allow several metaheuristics to run simultaneously, thus achieving a significant reduction of time overhead. In the algorithmic design, realistic scenarios were employed so as to appraise the impact of each agent on optimization efficiency. The cases correspond to real-world offshore infrastructures to be located in the Argentinian marine platform. They were also analyzed to illustrate the validity and suitability of the proposed approach. This optimization technique proved to be competitive since it is able to explore a wide search space fast, yielding satisfactory solutions. Fil: Oteiza, Paola Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina Fil: Rodriguez, Diego Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación. Laboratorio de Investigación y Desarrollo en Computación Científica; Argentina. Universidad Nacional de Salta; Argentina Fil: Brignole, Nélida Beatriz. Universidad Nacional del Sur. Departamento de Ciencias e Ingeniería de la Computación. Laboratorio de Investigación y Desarrollo en Computación Científica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
- Published
- 2018
29. JPL Innovation Foundry.
- Author
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Sherwood, Brent and McCleese, Daniel
- Subjects
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SPACE sciences , *SPACE flight , *AERONAUTICS , *AEROSPACE engineering , *FORCE ratio , *ASTRONAUTICS - Abstract
Abstract: Space science missions are increasingly challenged today: in ambition, by increasingly sophisticated hypotheses tested; in development, by the increasing complexity of advanced technologies; in budgeting, by the decline of flagship-class mission opportunities; in management, by expectations for breakthrough science despite a risk-averse programmatic climate; and in planning, by increasing competition for scarce resources. How are the space-science missions of tomorrow being formulated? The paper describes the JPL Innovation Foundry, created in 2011, to respond to this evolving context. The Foundry integrates methods, tools, and experts that span the mission concept lifecycle. Grounded in JPL's heritage of missions, flight instruments, mission proposals, and concept innovation, the Foundry seeks to provide continuity of support and cost-effective, on-call access to the right domain experts at the right time, as science definition teams and Principal Investigators mature mission ideas from “cocktail napkin” to PDR. The Foundry blends JPL capabilities in proposal development and concurrent engineering, including Team X, with new approaches for open-ended concept exploration in earlier, cost-constrained phases, and with ongoing research and technology projects. It applies complexity and cost models, project-formulation lessons learned, and strategy analyses appropriate to each level of concept maturity. The Foundry is organizationally integrated with JPL formulation program offices; staffed by JPL's line organizations for engineering, science, and costing; and overseen by senior Laboratory leaders to assure experienced coordination and review. Incubation of each concept is tailored depending on its maturity and proposal history, and its highest-leverage modeling and analysis needs. [Copyright &y& Elsevier]
- Published
- 2013
- Full Text
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30. AGENT-BASED APPROACH TO THE DESIGN OF RBF NETWORKS.
- Author
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Czarnowski, Ireneusz and Jędrzejowicz, Piotr
- Subjects
- *
SYSTEMS design , *COMPUTER networks , *ALGORITHMS , *PERFORMANCE evaluation , *MACHINE learning , *COMPARATIVE studies , *MATHEMATICAL optimization - Abstract
This article proposes a novel approach to the radial basis function network (RBFN) design. Its main idea is to apply the agent-based population learning algorithm to the task of initialization and training RBFNs. The approach allows for an effective network initialization and estimation of its output weights. The initialization involves two stages, where in the first one initial clusters are produced using the similarity-based procedure and next, in the second stage, prototypes (centroids) from the thus-obtained clusters are selected. The agent-based population learning algorithm is used to select prototypes. In the proposed implementation of the algorithm, both tasks—RBFN initialization and RBFN training—are carried out by a team of agents executing various local search procedures and cooperating with a view to determine the solution to the RBFN design problem at hand. The performance of the RBFN constructed using the proposed agent-based approach is analyzed and evaluated. The proposed approach is also compared with different RBFN initialization and training procedures in the literature. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
31. POPULATION-BASED MULTI-AGENT APPROACH TO SOLVING MACHINE LEARNING PROBLEMS.
- Author
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Czarnowski, Ireneusz and Jędrzejowicz, Piotr
- Subjects
- *
SUPERVISED learning , *MULTIAGENT systems , *PROBLEM solving , *MACHINE theory , *MACHINE learning , *ALGORITHMS , *COMPUTER science - Abstract
The purpose of this article is to present the application of the A-team approach to solving some machine learning problems belonging to the supervised and unsupervised learning classes. Because the above problems are computationally hard, it is proposed to take advantage of the robustness and flexibility of population-based methods combined with the efficiency of multi-agent systems integrated within the A-team concept. The main part of the article summarizes the experiences of the authors gained while developing various A-teams and includes some examples of population-based multi-agent algorithms for solving problems from the machine learning domain. It can be concluded that population-based multi-agent algorithms can be competitive in comparison with other existing techniques for some machine learning problems. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
32. Implementation and performance evaluation of the agent-based algorithm for ANN training.
- Author
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Czarnowski, Ireneusz and Jędrzejowicz, Piotr
- Subjects
- *
ARTIFICIAL neural networks , *ALGORITHMS , *ARTIFICIAL intelligence , *TOPOLOGY , *GENETIC algorithms - Abstract
The paper contains a description of the implementation and performance evaluation of the agent-based population learning algorithm used to train the feed-forward artificial neural networks. The goal of the research was to evaluate efficiency of the agent-based approach and to establish experimentally which different factors representing the A-Team structure and topology affect the performance of the analyzed agent-based algorithm. The paper includes a general overview of the JABAT environment used to deploy the ANN training algorithm, a description of different agents employed and their roles, as well as the computational experiment plan and the discussion of the performance evaluation results. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
33. An Agent-Based Approach for Scheduling Multiple Machines.
- Author
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Akkiraju, Rama, Keskinocak, Pinar, Murthy, Sesh, and Wu, Frederick
- Abstract
We present a new agent-based solution approach for the problem of scheduling multiple non-identical machines in the face of sequence dependent setups, job machine restrictions, batch size preferences, fixed costs of assigning jobs to machines and downstream considerations. We consider multiple objectives such as minimizing (weighted) earliness and tardiness, and minimizing job-machine assignment costs. We use an agent-based architecture called Asynchronous Team (A-Team), in which each agent encapsulates a different problem solving strategy and agents cooperate by exchanging results. Computational experiments on large instances of real-world scheduling problems show that the results obtained by this approach are significantly better than any single algorithm or the scheduler alone. This approach has been successfully implemented in an industrial scheduling system. [ABSTRACT FROM AUTHOR]
- Published
- 2001
- Full Text
- View/download PDF
34. Kissing Rugby Broken Nose
- Author
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Smith, Rebecca
- Subjects
kissing rugby ,kid games ,outdoor soar ,A-Team ,broken nose ,USU ,Logan Canyon - Abstract
RS: Have you guys ever heard of kissing rugby? WC: No. RS: It’s hilarious. What you do is all the girls from one long line- everyone is sitting on the ground, and the girls are all given letters of the alphabet “A” though whatever it goes to , and then the boys sit in a long line facing the girls but about 25 feet apart and they all get numbers, “1” to whatever. Then there’s a person that’s sitting in the middle between the 2 lines and they call out a letter and a number. If it’s a girl in the middle the girl letter called tries to kiss the boy number called while the boy number is trying to kiss the girl in the middle who is trying to get back to the open spot of the girl alphabet. Its opposite if it’s a boy in the middle. Then whoever is the person that gets kissed is the person who has to stay in the middle. WC: [various laughter and small comments to each other] RS: So I used to work for the university on the A-Team- do you guys know what that is? WC: [various yes’s from class] RS: So we did a camping trip registration and we were playing kissing rugby and this boy was trying to kiss a girl who was trying to kiss the middle boy and it got really crazy and one of the boys broke his nose! WC: [various laughing and exclamations of surprise] RS: Yep, it was all university sponsored too.
- Published
- 2018
35. Uloga kliničkog farmaceuta u upravljanju antimikrobnim lijekovima
- Author
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Darija Kuruc Poje, Vesna Mađarić, Vlatka Janeš Poje, and Srećko Marušić
- Subjects
antimikrobna rezistencija ,antimikrobno upravljanje ,A-tim ,klinički farmaceut ,farmakoterapijske intervencije ,antimicrobial resistance ,antimicrobial medicines administering ,A-team ,clinical pharmacist ,pharmacotherapy intervention - Abstract
Na području Europske unije godišnje umire 33 110 ljudi od posljedica infekcija uzrokovanih bakterijama rezistentnima na antibiotike. To je posljedica neadekvatne primjene antibiotika, sve češće nestašice lijekova, ali i sporog razvoja novih antibiotika. Očuvanje učinkovitosti antimikrobnih lijekova značajan je javni imperativ, uslijed kojeg se nameće potreba za implementacijom programa za antimikrobno upravljanje pomoću tima za antimikrobno upravljanje (A-tim). Znanstveni dokazi upućuju na to kako je za uspješno provođenje programa za antimikrobno upravljanje, uz odgovornost liječnika, neophodna i odgovornost kliničkog farmaceuta kao stručnjaka iz područja lijekova u bilo kojem okruženju. Klinički farmaceut, kroz multidisciplinarnu suradnju – upotrebom svojih farmakoterapijskih znanja i vještina iz područja infektologije – može značajno doprinijeti smanjenju antimikrobne rezistencije. Nadalje, neophodna je provedba edukacije iz područja programa za antimikrobno upravljanje i u dodiplomskoj nastavi na farmaceutskim fakultetima u cilju efikasnijeg provođenja mjera u borbi protiv AMR u okviru sveučilišnog programa., In European Union 33 110 people die annually as a result of antimicrobial-resistant infections. This is due to an inadequate use of antibiotics, increasingly frequent drug shortages, and slow development of new antibiotics. Preservation of antimicrobial medicines is a significant public imperative imposing a high need for the implementation of antimicrobial medicines administering program by an antimicrobial medicines administering team (A-team). The evidence suggests that for the successful implementation of antimicrobial stewardship program with the responsibility of the physicians, the responsibility of a clinical pharmacist, as a specialist in the field of clinical pharmacy, is also necessary. A clinical pharmacist – through multidisciplinary collaboration, by using his or her pharmacotherapeutic knowledge and skills – significantly contributes to the reduction of antimicrobial resistance. Furthermore, the implementation of education in the field of antimicrobial medicines administering program in postgraduate curriculum at the faculties of pharmacy is necessary in order to have more effective implementation of anti-AMR measures within the university program.
- Published
- 2018
36. Lean Smart Manufacturing in Taiwan—Focusing on the Bicycle Industry.
- Author
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Li, Lih-Ren
- Subjects
- *
LEAN management , *BICYCLE stores , *BICYCLE industry , *CYBER physical systems , *INDUSTRY 4.0 , *INDUSTRIAL policy ,DEVELOPED countries - Abstract
Industry 4.0, started in Germany in 2011, was fervently promoted by various advanced countries and followed by the introduction of "smart manufacturing". As an innovative strategy of the manufacturing industry "smart manufacturing" has attracted considerable attention in the field of academics and practice. However, the issues of huge investment and differentiation of individual enterprises have created a big gap between policy promotion and production at the site of actual industrial manufacturing and resulted in limited progress in smart manufacturing. In view of the situation, the authors have previously developed in relation to the practice of individual companies in the industry a practical structure of "Lean Smart Manufacturing: a conceptual framework and solution based co-creative platform" combining Lean Production with smart manufacturing to achieve customer value. In addition to filling the gap between government policy and industry in Industry 4.0, the practical structure suggests the possibility of balancing differentiation and open innovation. Taiwan's bicycle industry is one of Taiwan's most internationally competitive industries. GIANT, the leading manufacturer of bicycles in Taiwan, has been actively promoting TPS since 2000. With the development of Industry 4.0, GIANT has been working on the application of Industry 4.0 related technologies in order to further enhance customer value. In the application of the practical structure of "Lean Smart Manufacturing", there are few cases of corporate practice. This study focuses on the A-Team which is constructed by the bicycle industry in Taiwan and GIANT for empirical research, to see how GIANT implement the "Lean Smart Manufacturing" and construct the co-creative platform, to balance differentiation and open innovation, then strengthen its competitiveness. The research results show that although this case is still in the development stage, it has the basic form of "Lean Smart Manufacturing: a conceptual framework and solution based co-creative platform". This case, as we advocate the use of differentiated advantages of "Lean Smart Manufacturing", pragmatically from the establishment of the smart factory platform on the physical system, gradually extended to the strategic co-creative platform of the cyber system. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
37. Collaborative agent teams for a supply chain network design problem
- Author
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Carle, Marc-André, Martel, Alain, and Zufferey, Nicolas
- Subjects
Supply Chain Network Design ,Multidimensional optimization ,A-Team ,ddc:330/650 ,Solution method - Abstract
When facing complex optimization models, it is relevant to use the best tools available to tackle each model or sub-model. A multi-agent system allows for that much flexibility. Extending an earlier study, this paper proposes a Collaborative Agent Teams (CAT) approach to tackle multi-period multi-product supply chain network design problems, for which new best results are obtained.
- Published
- 2016
38. PLA Based Strategy for Solving RCPSP by a Team of Agents
- Author
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Jędrzejowicz, P. and Ewa Ratajczak-Ropel
- Subjects
A-team ,RCPSP ,population learning algorithm ,PLA ,agent ,resource-constrained project scheduling ,optimization - Abstract
In this paper the dynamic interaction strategy based on the Population Learning Algorithm (PLA) for the A-Team solving the Resource-Constrained Project Scheduling Problem (RCPSP) is proposed and experimentally validated. The RCPSP belongs to the NP-hard problem class. To solve this problem a team of asynchronous agents (A-Team) has been implemented using multiagent system. An A-Team is the set of objects including multiple agents and the common memory which through interactions produce solutions of optimization problems. These interactions are usually managed by some static strategy. In this paper the dynamic learning strategy based on PLA is suggested. The proposed strategy supervises interactions between optimization agents and the common memory. To validate the proposed approach computational experiment has been carried out.
- Published
- 2016
- Full Text
- View/download PDF
39. Heuristics and pedigrees for drawing directed graphs
- Author
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H. A. D. do Nascimento, C. F. X. de Mendonça, and Jorge Stolfi
- Subjects
A-team ,Sequence ,Theoretical computer science ,General Computer Science ,aesthetic criteria ,business.industry ,Computer science ,Directed graph ,Machine learning ,computer.software_genre ,Evaluation function ,multivalued optimization ,Set (abstract data type) ,graph drawing ,Mode (computer interface) ,Asynchronous communication ,Simple (abstract algebra) ,Artificial intelligence ,Heuristics ,business ,computer ,visualization - Abstract
We describe here a collection of heuristics for producing "nice"- drawings of directed graphs, and a simple dual-mode software tool for testing and evaluating them. In playing mode, the heuristics are applied in random sequence over a set of drawings, in the manner of an asynchronous team (A-team). As new drawings are added to the set, others are deleted based on a multi-valued aesthetic evaluation function. By inspecting the "pedigree" of the best solutions found in playing mode, the user can obtain insights into the best order in which the heuristics should be applied. Then the user can test these insights in the working mode, where the heuristics are applied in a fixed sequence.Some of the heuristics that we describe here are similar to the steps of Sugiyama's D-ABDUCTOR graph-drawing package; and indeed we can obtain results similar to those of D-ABDUCTOR, by applying our heuristics in the proper sequence.
- Published
- 1999
40. Watch the 14 Best Television Intros of All Time.
- Published
- 2014
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