Implementation Techniques to Parallelize Agent-Based Graph Analysis

Communications in Computer and Information Science - Highlights of Practical Applications of Survivable Agents and Multi-Agent Systems. The PAAMS Collection ◽

10.1007/978-3-030-24299-2_1 ◽

2019 ◽

pp. 3-14

Author(s):

Collin Gordon ◽

Utku Mert ◽

Matthew Sell ◽

Munehiro Fukuda

Keyword(s):

Graph Analysis ◽

Agent Based ◽

Implementation Techniques

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Human Behaviour Simulation Using Space Syntax Methods

Architecture and Urban Planning ◽

10.2478/aup-2020-0013 ◽

2020 ◽

Vol 16 (1) ◽

pp. 84-92

Author(s):

Milda Sutkaitytė

Keyword(s):

Physical Environment ◽

Open Space ◽

Space Syntax ◽

Physical Space ◽

Human Behaviour ◽

Graph Analysis ◽

Agent Based ◽

Visibility Graph Analysis ◽

Behaviour Simulation ◽

Space Recognition

Abstract City is a multi-layered structure of social, cultural, and economic aspects and their relationship through the physical space. Recognition of some patterns in those relationships is the essence for defining fragmentations in urban fabric and suggesting solutions on how those fragmentations could be solved. The article analyses how different space syntax methods can be used to find patterns in the chosen urban environment. Space syntax allows to find urban relationships between physical environment and human behavior. Space syntax suggests a few different approaches on how these relationships could be simulated: Segment Analysis perceives environment as a network of paths or streets, visibility graph analysis concentrates on inter-visual relationships, while agent-based analysis uses simple artificial intelligence for modeling movement in open space. Consequentially, the aim of this research is to find out what human behaviour aspects each of these space syntax methods are able to simulate.

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Vectorization techniques for efficient agent-based model simulations of tumor growth

10.1101/032086 ◽

2015 ◽

Author(s):

Jan Poleszczuk ◽

Heiko Enderling

Keyword(s):

Tumor Growth ◽

Growth Dynamics ◽

Computational Time ◽

Computational Power ◽

Agent Based Model ◽

Agent Based ◽

Numerical Examples ◽

Multi Scale ◽

Implementation Techniques ◽

Time Required

Multi-scale agent-based models are increasingly used to simulate tumor growth dynamics. Simulating such complex systems is often a great challenge despite large computational power of modern computers and, thus, implementation techniques are becoming as important as the models themselves. Here we show, using a simple agent-based model of tumor growth, how the computational time required for simulation can be decreased by using vectorization techniques. In numerical examples we observed up to 30-fold increases in computation performance when standard approaches were, at least in part, replaced with vectorized routines in MATLAB.

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Total etch dentin bonding systems: scanning electron microscopy of the resin-dentin hybrid layer

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100130092 ◽

1992 ◽

Vol 50 (2) ◽

pp. 1092-1093

Author(s):

Jorge Perdigao

Keyword(s):

Composite Resin ◽

Mechanical Interlocking ◽

Hybrid Layer ◽

Agent Based ◽

Dentin Bonding ◽

Acid Agent ◽

Bond Strengths ◽

Main Component ◽

Bonding Systems ◽

New Generation

In 1955, Buonocore introduced the etching of enamel with phosphoric acid. Bonding to enamel was created by mechanical interlocking of resin tags with enamel prisms. Enamel is an inert tissue whose main component is hydroxyapatite (98% by weight). Conversely, dentin is a wet living tissue crossed by tubules containing cellular extensions of the dental pulp. Dentin consists of 18% of organic material, primarily collagen. Several generations of dentin bonding systems (DBS) have been studied in the last 20 years. The dentin bond strengths associated with these DBS have been constantly lower than the enamel bond strengths. Recently, a new generation of DBS has been described. They are applied in three steps: an acid agent on enamel and dentin (total etch technique), two mixed primers and a bonding agent based on a methacrylate resin. They are supposed to bond composite resin to wet dentin through dentin organic component, forming a peculiar blended structure that is part tooth and part resin: the hybrid layer.

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