Entropy method for determination of weight of evaluating indicators in fuzzy synthetic evaluation for water quality assessment
| Autor: | Yi Yun, Jing-nan Sun, Zhihong Zou |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Environmental Engineering
Computer science Water Improved method General Medicine computer.software_genre Fuzzy logic Reliability engineering Multiple factors Fuzzy Logic Evaluation methods Thermodynamics Environmental Chemistry Entropy (information theory) Data mining Water quality computer General Environmental Science Three gorges |
| Zdroj: | Journal of Environmental Sciences. 18:1020-1023 |
| ISSN: | 1001-0742 |
| DOI: | 10.1016/s1001-0742(06)60032-6 |
| Popis: | Considering the difficulty of fuzzy synthetic evaluation method in calculation of the multiple factors and ignorance of the relationship among evaluating objects, a new weight evaluation process using entropy method was introduced. This improved method for determination of weight of the evaluating indicators was applied in water quality assessment of the Three Gorges reservoir area. The results showed that this method was favorable for fuzzy synthetic evaluation when there were more than one evaluating objects. One calculation was enough for calculating every monitoring point. Compared with the original evaluation method, the method predigested the fuzzy synthetic evaluation process greatly and the evaluation results are more reasonable. |
| Databáze: | OpenAIRE |
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