Comprehensive Evaluation of Offshore Oilfield Development Plans Based on Grey Clustering Analysis with Cloud Model

Algorithm 3

Improved Grey Clustering Analysis.

Step 1. Establish plan set, index set, the basis comment set and the matrix of plan’s indexes;

Step 2. Establish the 5 types grey whitening function based on the Logistic function

Step 3. Establish clustering weight vector and clustering weight matrix

Step 4. Clustering coefficient vector and clustering coefficient matrix

Step 5. Determine the pros and cons of the plan .