Why did I get a high similarity score after polishing language with Paperpal's AI features?

There are a few reasons why this might happen:
 

• Training data: AI models are trained on vast amounts of text, including published works. This means the generated text may inadvertently draw on or closely resemble existing publications.
• Common linguistic patterns: Paperpal’s AI language check strives to achieve clarity and coherence, which may lead to the use of common expressions and sentence structures found in academic writing.
• Input from existing sources: If you provide Paperpal with text lifted from other sources as input, the outputs will retain similar phrasing and the similarity with get flagged accordingly.