Decision research of plain lake remediation based on entropy-weight TOPSIS and modified DBSCAN

Ziyuan Li; Chenyang Zhang

doi:10.1117/12.2626699

20 December 2021 Decision research of plain lake remediation based on entropy-weight TOPSIS and modified DBSCAN

Ziyuan Li, Chenyang Zhang

Proceedings Volume 12155, International Conference on Computer Vision, Application, and Design (CVAD 2021); 121550Q (2021) https://doi.org/10.1117/12.2626699
Event: International Conference on Computer Vision, Application, and Design (CVAD 2021), 2021, Sanya, China

Abstract

From structural characteristics, water quality, ecological environment, human influence and social function, this paper selected 25 indexes to establish an assessment system. Sequence analysis was performed to evaluate the advantages and disadvantages of lake remediation of sign lake in object layer and system layer based on entropy-weight TOPSIS. Then, cluster analysis was executed to categorize the remediation level of lakes based on modified DBSCAN. 26 lakes in Hangjiahu Plain and Xiaoshao Plain were researched according to the above methods. The results indicated that 1) Significant differences of object layer and system layer among lakes were detected. Xiaozhu Lake was optimal, and north Xiangfu Lake was worst. The difference was 4.45 times. 2) Correlation analysis showed that structural characteristics, water quality and ecological environment were the determining factors in the overall ranking. 3) Geographically, the higher ranking lakes existed in both regions, but almost all of the lower ranking lakes existed in Hangjiahu Plain. 3) All lakes were divided into four clusters. The first cluster was converted into wetland parks in different degrees, and they were the best remediation. The second cluster had obvious deficiencies in some system layer. The third cluster represented the current remediation level of plain lakes. The last cluster most were natural lakes that lack management, and they were the worst remediation. The conclusions of study on advantages and disadvantages of different aspects of lake remediation could be for the reference of concept optimization and management decision in lake remediation.

Citation Download Citation

Ziyuan Li and Chenyang Zhang "Decision research of plain lake remediation based on entropy-weight TOPSIS and modified DBSCAN", Proc. SPIE 12155, International Conference on Computer Vision, Application, and Design (CVAD 2021), 121550Q (20 December 2021); https://doi.org/10.1117/12.2626699

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Analytical research

Detection and tracking algorithms

Ecosystems

Floods

Organisms

Control systems

Lithium

Show All Keywords

Keywords/Phrases

Search In:

Publication Years