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How search engines judge pseudo originality

Source: Shangpin China | Type: website encyclopedia | Time: January 21, 2014
In this era of "content is king", Website construction company Shangpin China is most impressed by the importance of original articles to a website. If a website fails to pass the standard of content quality for a certain period of time, the direct result is that the website is demoted and the website traffic drops.

Although we know the importance of original articles, we all know that there is no big problem with one or two original articles. It is very difficult to keep the original website articles for a long time, unless there are a group of full-time writers or editors under the leadership of those large website webmasters. What about the webmasters without such excellent conditions? It can only be pseudo original and plagiarism. But are the methods of pseudo original and plagiarism really useful? Today, Shangpin China is here to share with you the knowledge of search engines on the determination of duplicate content:

Question 1: How do search engines determine duplicate content?

1. The general basic judgment principle is to compare the digital fingerprint of each page one by one. Although this method can find some duplicate content, its disadvantage is that it needs to consume a lot of resources, and its operation is slow and inefficient.
 
How search engines judge duplicate content

2. I-Match based on global features

The principle of this algorithm is that all words appearing in the text are sorted first and then scored, so as to delete irrelevant keywords in the text and retain important keywords. This method has a high and obvious effect of de duplication. For example, we may exchange the words and paragraphs of the article during the pseudo original creation. This method can not fool the I-Match algorithm at all. It still determines the repetition.
 
I-Match based on global features

3. Spotsig based on stop words

If a large number of stop words are used in documents, such as modal particles, adverbs, prepositions, and conjunctions, these will interfere with the effective information. Search engines will delete these stop words when they are de duplicated, and then perform document matching. Therefore, we might as well reduce the use frequency of stop words and increase the page keyword density when doing optimization, which is more conducive to search engine crawling.
 
Spotsig based on stop words

4. Simhash based on multiple Hashes

This algorithm involves geometric principles, which is difficult to explain. In short, similar texts have similar hash values. If the simhash of two texts is closer, that is, the smaller the Hamming distance, the more similar the texts will be. Therefore, the task of duplicate checking in massive texts is transformed into how to quickly determine whether there is a fingerprint with a small Hamming distance in massive simhash. We only need to know that through this algorithm, search engines can perform approximate duplicate checking on large-scale web pages in a very short time. At present, this algorithm complements each other in recognition effect and duplicate checking efficiency.

Question 2: Why should search engines actively deal with duplicate content?

1. Save space and time for crawling, indexing, and analyzing content

In a simple word, the resources of search engines are limited, while the needs of users are unlimited. A large amount of duplicate content consumes the valuable resources of search engines, so duplicate content must be treated from the perspective of cost.

2. Helps avoid repeated collection of duplicate content

Summarize the information that best meets the user's query intention from the identified and collected content, which can not only improve efficiency, but also avoid repeated collection of duplicate content.

3. The frequency of repetition can be used as a criterion for judging excellent content

Since search engines can identify duplicate content, of course, they can more effectively identify which content is original and high-quality. The lower the frequency of repetition, the higher the original quality of article content.

4. Improve user experience

In fact, this is also the most important point for search engines. Only by handling duplicate content and presenting more useful information to users can users buy it.

Question 3: What are the manifestations of duplicate content in the eyes of search engines?

1. The format and content are similar. This situation is quite common on e-commerce websites, and the phenomenon of stealing pictures is everywhere.

2. Only the format is similar.

3. Only the content is similar.

4. The format and content are partly similar. This is often the case, especially for enterprise type websites.
Source Statement: This article is original or edited by Shangpin China's editors. If it needs to be reproduced, please indicate that it is from Shangpin China. The above contents (including pictures and words) are from the Internet. If there is any infringement, please contact us in time (010-60259772).
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Disclaimer

Thank you very much for visiting our website. Please read all the terms of this statement carefully before you use this website.

1. Part of the content of this site comes from the network, and the copyright of some articles and pictures involved belongs to the original author. The reprint of this site is for everyone to learn and exchange, and should not be used for any commercial activities.

2. This website does not assume any form of loss or injury caused by users to themselves and others due to the use of these resources.

3. For issues not covered in this statement, please refer to relevant national laws and regulations. In case of conflict between this statement and national laws and regulations, the national laws and regulations shall prevail.

4. If it infringes your legitimate rights and interests, please contact us in time, and we will delete the relevant content at the first time!

Contact: 010-60259772
E-mail: [email protected]