Analysis Zone indexes algorithm and site weight division

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Zone indexes algorithm is a kind of search engine algorithm which divides the Web pages and gives weights to them respectively. Search engine will combine this algorithm and other denoising technology, such as VIPs algorithm, the content of a Web site "de-noising", and the weight of each area, so as to show the real value of the content of the page.

As in the previous article on the Search engine algorithm, "TF algorithm in the SEO derivative applications," said. This bo is to SEO as the theme, involved in the IR field just to let everyone better understand the search engine, so as to improve the effectiveness of the site optimization. Therefore, this paper is to introduce the derivative application of zone indexes in the field of search engine optimization in plain language.

Zone Indexes algorithm SEO definition

Zone indexes algorithm, we will temporarily translate it as a "partitioned Index" algorithm (the IR field of Daniel welcome correct translation error), is a site in the standardization of the site or Web page partition, and then assign weights to each area of the algorithm. We use a simple example to understand this algorithm, assuming that a Web page contains only three pieces of content, that is, the title, description, content text, and also assume that the search engine to three areas of the weight assigned to 0.3, 0.1 and 0.6 points:

Title: 0.3 min

Description: 0.1 points

Content: 0.6 points

Now, as a user, type the boolean algorithm in the search engine, and in this article, for example, it gets the weight:

Title: "Zone indexes algorithm and site weight division", appeared "algorithm" 1 times, got 0.15 points

Description: Zone Indexes is a kind of search engine algorithm which can divide the Web page and give the weights respectively ..., the "algorithm" 1 times, get 0.01 points

Content: Now we as a user, in the search engine type "Boolean algorithm", in this article for example ... "Boolean and algorithm" got 0.6 points

Total: 0.76 minutes

That is, my article will zone indexes algorithm, but not Boolean algorithm, but because the word "algorithm" is consistent with the search requirements, in the absence of other weight factors, this article is still related to the index word, should appear in the search results.

However, the application of the search engine to the zone indexes algorithm is far from simple-it is differentiated by a Web page. I in the "Web site overall standardization of the impact of SEO" a structural level of SEO has written:

The structural dimension is the HTML language that forms the Web site. If we are doing SEO work often use the h1-h4, fervent, A, IMG tags. Search engines are able to see and analyze these tags. And these tags also tell the search engine a site content directly related to the relationship.

We know that an ordinary website has at least the following areas:

Header Head Area

Content Area

Footer Footer Area

More complex sites will have the following areas:

Nav Navigation Area

Sidebar Sidebar area

Comments Comment Area

Link friend chain area

The internal construction of large Web sites is more complex. Unlike VIPs, which distinguishes the visual noise area, Zone indexes is a structural aspect of the site, such as:

Content is the most important area, usually labeled as content in the Div area, is the search engine to give the highest weight area. Header second, because the section has titles and descriptions, which are also important for indexing sites.

Nav navigation, sidebar sidebar is generally not so important, and footer footer, comments comment area is generally the noise area (as well as link friends and ad ads, etc.).

In HTML5, this semantic based Web site structure is further enhanced, we know that HTML5 has directly supported aspires, audio, body, footer and other labels.

Zone Indexes Algorithm SEO Example

Here we look at a use of zone indexes algorithm for the site SEO example, the case from the famous Yahoo (this example is also a lot of SEO experts in the analysis of the structure of the site is like to cite examples).

We open http://autos.yahoo.com/this site, and then look at its source code, in close to the footer, we found such a piece of code:

For search engines, when they divide a site by region, they need to decide which part is important and that part is unimportant, and then give the appropriate area weight. In addition to the above mentioned by the ID or class to divide, they will also take a "text code than" approach. Because in some cases, even the contents of the footer are not necessarily unimportant.

Because of the writing and procedural reasons, if in a paragraph of content, text + pictures far greater than the code, you can determine that this piece of content is important. Conversely, if the code content is larger than the text + picture, then this piece of content is unimportant.

It's reasonable and logical and practical, isn't it?

When Yahoo marks the related area, the above area is described and the following area is a link. How can the following areas not be considered by the search engine "noise zone" and unimportant, and then discarded? Yahoo's approach is to join a "related" area, that is, the relevant recommendation area, the upper and lower regions linked up, and then yat-pseo-foot as a whole content, let search engines to crawl and included. Avoid the search engine "denoising" processing.

In understanding the above based on the zone indexes algorithm SEO example, we also need to learn a SEO technique is: Do not want to highlight the location to add too much HTML code, in case the text code than the problem of the search engine to determine the noise area. For example, the full screen is linked to the "body" and anchor link to the "footer."

Through the zone indexes algorithm, we can understand the search engine on the site division and the weight of some of the basic knowledge, the use of this knowledge, can help us to highlight the core content of the site, reduce the search engine noise area of the site to determine. And these algorithms and knowledge, once again highlighted the importance of the internal structure of the site.

This article by Yangfan original in Yang seo, reprint please keep the link:

Http://www.seoyangs.com/zone-indexes-weight-divided.html