1, factor analysis and principal component method, using the information concentration principle of data and variance interpretation rate to calculate the weight. When calculating the weight, both factor analysis and principal component method can calculate the weight, and the principle of utilization is exactly the same, both of which use the idea of information concentration.
2.AHP hierarchy method and priority diagram method, using the relative size information of numbers to calculate the weight. The first step of AHP is to establish a judgment matrix, that is, to establish a table, which indicates the relative importance of the analysis items. The priority graph method is that the code is 1 when the number is relatively large, 0.5 when the number is exactly the same, and 0 when the number is relatively small.
3. Entropy weight method (entropy weight method), which uses the entropy information of data, that is, the amount of information, to calculate the weight. Entropy is a measure of uncertainty. The greater the amount of information, the smaller the uncertainty and entropy; The smaller the amount of information, the greater the uncertainty and the greater the entropy.
Ways to gain weight:
1, keyword density optimization.
Keyword density refers to the ratio of the number of times keywords appear in a web page to the total number of words. By increasing keyword density, the weight of search engines on web pages can be increased. However, attention should be paid to avoid keyword accumulation and over-optimization in the process of keyword density optimization.
2. Internal link optimization.
Internal links refer to links between different pages of the same website. Through reasonable internal link settings, search engines can better capture website content and improve website weight. It should be noted that too many internal links should be avoided to avoid giving users a bad experience.
3. Content optimization.
Website content is an important factor to attract users and improve their weight. Excellent content can attract more users to visit and share, and can also be recognized and weighted by more search engines. It should be noted that content optimization should be aimed at specific user needs and search engine algorithms.
The above content comes from the store inspection.