東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

From parameters to scenarios: Using ...

Dietzel, Charles.

Linked to FindBook

Google Book

Amazon

博客來

From parameters to scenarios: Using the behavior of cellular automata to create new futures.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	From parameters to scenarios: Using the behavior of cellular automata to create new futures./
Author:	Dietzel, Charles.
Description:	188 p.
Notes:	Chair: Keith C. Clarke.
Contained By:	Dissertation Abstracts International66-06B.
Subject:	Physical Geography. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3178740
ISBN:	9780542185717

From parameters to scenarios: Using the behavior of cellular automata to create new futures.
Dietzel, Charles.

From parameters to scenarios: Using the behavior of cellular automata to create new futures. - 188 p.

Chair: Keith C. Clarke.

Thesis (Ph.D.)--University of California, Santa Barbara, 2005.

Cellular Automata (CA) are one of several types of models used to simulate urban growth, as proposed by Tobler. Despite their evolution and wide-spread usage in academia, there are still problems with CA that need resolution. Many of these problems deal with the behavior of CA, how it (behavior) can be quantified, and why some models exhibit chaotic behavior under certain transition rules.

ISBN: 9780542185717Subjects--Topical Terms:

893400
Physical Geography.

From parameters to scenarios: Using the behavior of cellular automata to create new futures.
LDR:03192nam 2200301 a 45 001 972093
005 20110927
008 110927s2005 eng d
020 $a 9780542185717
035 $a (UMI)AAI3178740
035 $a AAI3178740
040 $a UMI $c UMI
100 1 $a Dietzel, Charles. $3 1296113
245 1 0 $a From parameters to scenarios: Using the behavior of cellular automata to create new futures.
300 $a 188 p.
500 $a Chair: Keith C. Clarke.
500 $a Source: Dissertation Abstracts International, Volume: 66-06, Section: B, page: 3025.
502 $a Thesis (Ph.D.)--University of California, Santa Barbara, 2005.
520 $a Cellular Automata (CA) are one of several types of models used to simulate urban growth, as proposed by Tobler. Despite their evolution and wide-spread usage in academia, there are still problems with CA that need resolution. Many of these problems deal with the behavior of CA, how it (behavior) can be quantified, and why some models exhibit chaotic behavior under certain transition rules.
520 $a Using the SLEUTH Urban Growth Model, as a test case for developing a method of creating alternate futures from model parameters, the behavior of the model across the parameter, metric, and behavioral space was examined. Using self-organizing maps, the metric space of the model was evaluated across the entire parameter space using multiple datasets, determining the optimal metrics for evaluating goodness of fit. Next, using the new measures of goodness of fit, the behavior of the model was examined across the entire parameter space using a modified version of the cellular disorder measure. It was expected that the behavioral space would have some areas of chaotic behavior while maintaining a high goodness of fit; this was not the case. With the gained knowledge of the parameter, metric, and behavioral spaces, clustering techniques were implemented to dissect the parameter space into distinct regions for forecasting. During this investigation, areas within the parameter space were found where the model overfit the data, and produced no growth during forecasting despite rapid growth during calibration. After eliminating these areas, the parameter space was reclustered into five areas that equally fit the data, and forecasting using these areas created five different, but equally probably futures.
520 $a This dissertation demonstrated that through exhaustive exploration of model parameter, metric, and behavioral spaces, that multiple equally probably model forecasts can be found for this and other CA. It also illustrates how overfit is a common problem in modeling, and that there are major research areas that need attention before CA can be used in real-world planning and decision-making. Only once there is complete understanding of the mechanical nature of a model can it be used properly and reach its promise of "honesty in modeling."
590 $a School code: 0035.
650 4 $a Physical Geography. $3 893400
650 4 $a Urban and Regional Planning. $3 1017841
690 $a 0368
690 $a 0999
710 2 0 $a University of California, Santa Barbara. $3 1017586
773 0 $t Dissertation Abstracts International $g 66-06B.
790 $a 0035
790 1 0 $a Clarke, Keith C., $e advisor
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3178740