Whip. Com is a professional academic literature retrieval platform, which can help users search and find all kinds of academic papers and research results. If you need to check duplicates on VIP, you can use the following methods:

1. Log in to the VIP account and enter the My Documents page.

2. Select the paper to copy, and then click the Copy Check button.

3. In the pop-up window, select duplicate checking tools such as "Check duplicates by dimension" or "Check duplicates by HowNet".

4. Fill in relevant information according to the prompts, such as the title, author and abstract of the paper.

5. Wait for the system to check the copy, and the results will be displayed in a few minutes.

It should be noted that the duplicate checking function of VIP is based on its internal database, so it can only detect papers uploaded by VIP, HowNet and other platforms, and cannot detect papers from other platforms. In addition, the duplicate checking results of VIP network are for reference only, and the specific judgment needs to be combined with the actual situation.